dwyer level

VISIT OUR WEBSITES: www.dwyer-inst.com • www.dwyer-inst.co.uk • www.dwyer-inst.com.au 220

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LevelTable of ContentsIntroduction to Level Controls . . . . . . . . . . . . . . . . . . . . . . .221Introduction to Level Applications . . . . . . . . . . . . . . . .222-223Series L4 Flotect® Float Switch . . . . . . . . . . . . . . . . . . . . . .224Series L6 Flotect® Liquid Level Switch . . . . . . . . . . . . . . . .225Model L8 Flotect® Liquid Level Switch . . . . . . . . . . . . . . . .226Series L10 Flotect® Mini-Size Level Switch . . . . . . . . . . . . .227Series CFS Cable Float Switch . . . . . . . . . . . . . . . . . . . . . .228Series FSW Free-Floating Level Switch . . . . . . . . . . . . . . .228Model F7-MLK Multi-Level Switch Kit . . . . . . . . . . . . . . . . .229Model F7-MLK2 Multi-Level Switch Kit . . . . . . . . . . . . . . . .229Series F7 Level Switches - Vertical . . . . . . . . . . . . . . . . . . .230Series F7 Level Switches - Horizontal/Specialty . . . . . . . . .231Series F7-MM Miniature Multi-Station Level Switch . . . . . .232Series F7-MQ Quick-Ship Multi-Station Level Switch . . . .233Series F7-MS Multi-Station Level Switch . . . . . . . . . . . . . .234Model OLS Optical Level Switch . . . . . . . . . . . . . . . . . . . . .235Series 123 Cast Iron Chamber - Water Level Control . . . . .236Series 102 Flanged Chamber Type Level Control . . . . . . . .236Series 500 Insertion Type Level Control . . . . . . . . . . . . . . .237Series 75 Torque Tube Type Level Control . . . . . . . . . . . . .237Series 201 Side Mounted-Chamber Type

Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238Series 391 Side Mounted-Chamber Type

Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238Series B-190 Liquid Level Switches - Controls . . . . . . . . . .239Series GS Gap Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239Model CLS1 Capacitance Level Switch . . . . . . . . . . . . . . .240Series RFC RF Capacitance Level Switch . . . . . . . . . . . . .240Series RF Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . .241Model DPL110 Dual Point Level Switch . . . . . . . . . . . . . . .241Series LLC Conductivity Controller . . . . . . . . . . . . . . . . . . .242Model DBLM Mini-Bin Dry Bulk Level Monitor . . . . . . . . . .243Explosion-Proof Ultra MagTM Level Switches . . . . . . . .244-245Series PLS Paddle Level Switch . . . . . . . . . . . . . . . . . . . . .246S-DTM & SliquidTM Liquid Level Switches . . . . . . . . . . . . . . .247Series CLT Continuous Level Transmitter . . . . . . . . . . . . . .248Model CRF Continuous Level Transmitter . . . . . . . . . . . . . .249Series PLT Piezoresistive Level Transmitter . . . . . . . . . . . .249Series UT Ultrasonic Level Transmitter . . . . . . . . . . . . . . . .250Series SLT Submersible Level Transmitter . . . . . . . . . . . . .250Series SBLT Submersible Level Transmitter . . . . . . . . . . . .251Series SPT Submersible Pressure Transmitter . . . . . . . . . .251Series PBLT Submersible Level Transmitter . . . . . . . . . . . .252Series A-900 & A-901 1/4 DIN Control Enclosures . . . . . . .252Series MPC Pump Controller . . . . . . . . . . . . . . . . . . . . . . .253Series PCP Relay/Controller/Power Supply . . . . . . . . . . . .254Series MVR Mini View-Rite Level Indicator . . . . . . . . . . . . .255Series VR View-Rite Level Indicator . . . . . . . . . . . . . . . . . .256Series TLI Tank Level Indicator . . . . . . . . . . . . . . . . . . . . . .257Series PS Proximity Sensors . . . . . . . . . . . . . . . . . . . . . . . .257

Float/Level Switches pgs 224-235

Sensors/Level Controls pgs 236-239

Level Transmitters pgs 248-252

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ARMAGAN

Stamp

CALL TO ORDER: U.S. Phone 219 879-8000 • U.K. Phone (+44) (0)1494-461707 • Asia Pacific Phone 61 2 4272-2055 221

Level

Most of the devices featured in this section use the magnetic attraction or repulsion system of operation. This rugged electro-me-chanical design has proven itself for more than 50 years and millions of heavy duty applications. The electro-mechanical system con-sists of an attractor of magnetic material, usually 430 SS, or a magnet inside the control and a movable magnet outside the device.As the attractor moves in or out of the magnetic field the magnet moves toward or away from the attractor. The magnet is attachedto one or more snap action or mercury switches. As the magnet moves it pivots and operates the switch assembly to either make orbreak one or more electrical contacts. This switch action performs the task of operating equipment, alarms, shutdowns, and/or re-ports such functions to a computer or central location. Controls featuring this magnet operated system can be used at temperaturesup to 800°F (425°C) and pressures up to 1750 psig (121 bar). Liquid level controls are available to handle fluids from water to moreaggressive liquids requiring all 316 SS construction. Dry bulk controls can handle materials from carbon black to soybean flour. Elec-trical contacts of SPST, SPDT, or DPDT configuration are provided to accommodate applications from 12 amperes AC, 10 amperesDC, to milliampere requirements of high technology low current, low voltage intrinsically safe or “dry” circuits. General purpose,weatherproof or explosion-proof enclosures protect the electrical switch assemblies from the environment.

Dwyer Dry Bulk or Liquid Level controls are designed to perform two functions. A. To maintain a level. This task is usually completed by using a control with a wide deadband, or two fixed deadband controls and aholding relay. Thus when the level of a liquid or dry bulk material reaches a pre-determined high (or low) point a pump is shut off orturned on. This cycle is repeated continuously such as in a sump, tank, lubrication equipment, bin or other pressurized or non-pres-sured vessel. B. To monitor a safe level or detect a not-to-exceed level - that is to act as an alarm, or shut down, or both. This can be either high orlow functions or both. This is accomplished by using a control with a fixed deadband. There are a great variety of controls suitablefor this purpose.

There are basically 8 determining factors when selecting a control for a specific function. 1. Pressure 8. Method of attachment2. Temperature A. External pipe mounted3. Specific gravity or bulk density 1. threaded4. Fixed or adjustable deadband 2. socket weld5. Electrical requirement 3. flanged6. Enclosure type B. Side mounted

A. General purpose 1. threadedB. Weatherproof 2. flangedC. Explosion-proof C. Top mounted

7. Media compatibility with wetted parts 1. flanged2. threaded

If the control is to be externally mounted, can the chamber be a welded type such as for use with clean non-corrosive liquids or shouldit be flanged so that the unit can be inspected and/or easily maintained? Welded chamber benefits are that they are usually less ex-pensive than flanged controls and can be used with higher pressure and temperature. The disadvantage is that the unit cannot bedisassembled for cleaning or inspection. Flanged units can be disassembled but are more expensive and have lower pressure and tem-perature capability.

Controls for top mounted service are generally capable of performing a greater variety of functions such as operating 1, 2 or 3 pumps,providing high and low alarm or combining functions such as operating a pump and providing both high and low alarms in one unit.

Consult the factory or your nearest sales office if you cannot determine the best control for your application based on the informa-tion in the technical guide.

Introduction to Level Controls

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el The W.E. Anderson® L4 float switch provides a simple, reliable

means for monitoring and controlling the level of a liquid in alarge tank. In this holding tank application, the lower L4 indi-cates to the operator that a tank fill cycle is required; the L4 canalso control the necessary valve or pump to provide an auto-matic fill cycle. When the level of the liquid reaches the upperL4, the switch activates another indicator lamp or terminatesthe automatic fill cycle. The L4 float switch in optional stainlesssteel is recommended for level control of corrosive liquids,while the lower cost standard brass L4 serves well in mostwater and oil applications.

Reliable float switches monitor and control liquidlevel.

Fill Pipe

High LimitL4FloatSwitch

Indicator Lamps

ControlPanel

L4FloatSwitch

LowLimit

Drain

Silo

Transpor ter

Receiving Bin

Series PLSPaddle

Level Switch

Pneumatic conveying systems use air to transport powderand dry bulk solids through conveying lines. The air is pres-surized by positive pressure or vacuum to move the productthrough the lines into and out of silos, transporters, andreceivers. Typical applications have high and low level indica-tion in the storage bins to control the flow of product in or out.The PLS is perfect for level use in these storage bins. It hasa rotating paddle that is inserted into the bin. As the productlevel builds up in the bin it stops the paddle from rotating andtriggers the level output. The PLS is great for this applicationas it not affected by pressure changes in the bin.

Proximity® Series PLS is used to indicate level sta-tus in pneumatic conveying systems.

Series MPCPump

Controller

InletOutlet

Series PBLTLevel Transmitter

Submersible Pumps

Mercoid® pumpcontroller with level transmitter control pumpsin wastewaterlift stations.

Lift stations are used to transmit wastewater to the treatment facility.Wastewater is transmitted by gravity feed so it has to be continuallyelevated to provide height to generate the flow. Lift stations are pitslocated at points in the wastewater system to collect the wastewaterthat usually have two submersible pumps. Wastewater in the lift sta-tion is pumped out to a higher level from where it can flow on to thenext lift station or to the treatment facility. The Mercoid® Series MPCpump controller is used with the Series PBLT level transmitter to con-trol the level in the lift station. The PBLT is a level transmitter that issubmersed in the tank and sends a linear output of the height of waste-water above it. The MPC takes the height input and controls the pumpsaccording to how it has been programmed. For a lift station, the pri-mary pump comes on when the tank hits a high level and turns offwhen the level decreases to the set low level. The second pump is usedif the first pump cannot drain the station and comes on at a set higherlevel above pump 1. High and low level alarms, submersible pump sealfailure indication, pump over temperature protection, and pump alter-ation all are built into the MPC.

Supply

Series PLSPaddleLevel Switch

Discharge

Series PLSPaddleLevel Switch

The supply of grain pneumatically conveyed to this dispensinghopper is controlled by two Proximity® Series PLS paddle levelswitches. When the grain level falls to the low limit switch, thesupply is turned on until the hopper fills to the level of the highlimit switch which turns off the supply. Since grain dust is explo-sive, the explosion-proof Series PLS provides the required safe-ty protection. The PLS is a paddle level switch and is not affect-ed by the varying pressure in the hopper due to the cycling ofthe pneumatic conveying system.

Grainhopper level controlledby SeriesPLS PaddleLevelSwitch.

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A hydro-pneumatic tank with a deep well pump maintains desired pressure in a watersystem. The pump, however, delivers entrained air along with makeup water, requiringperiodic tank venting to prevent excess pressure buildup. As both water level and tankpressure must be maintained, one side of the W.E. Anderson Duotect® pressure switchis interlocked with the Anderson L-4 float switch via the control box. When tank pres-sure falls below the preset system pressure due to water drawdown, the Duotect®

switch starts the pump and transfers control to the float switch. When the preset waterlevel is reached, the float switch turns pump off. If entrained air has increased the pres-sure beyond the limit set in the other side of the Duotect® pressure switch, after a timedelay covering several normal cycles, the switch will open the solenoid valve and ventthe tank down to proper pressure.

These typical applications may suggest ideas for solving your control problems:In all systems it is essential that adequate liquid or dry bulk material exists in a pipeline or tank. Mercoid, Anderson, Proximity orDwyer switches provide the control and monitor function automatically, reliably and at moderate cost. These controls are widely usedin power generating stations, petroleum and chemical processing, pumping stations, air conditioning, heating, hot/cold water supply,liquid or dry bulk transfer, water treatment, sumps and a great variety of industrial applications. The diagrams below suggest but afew of the many applications that protect your motors, pumps, engines and processors.

Industrial sumps and other underground tanks are ideal applications for top mountedMercoid displacer type level controls. Easily installed, these controls use porcelain dis-placers that do not float on the surface of liquids but are suspended on a coil spring andcable. As the liquid in the tank reaches the level of the upper displacers their weight de-creases by an amount equal to the liquid displaced allowing the spring to move thecable upward, actuating the switch and the pump is turned on. As the liquid level fallsbelow the upper displacers they move only a small amount, staying within the switchdeadband until the liquid level falls to the center of the bottom displacer. At this point theswitch is deactivated stopping the pump. The pump will remain deactivated until thewater level rises to the upper displacers, repeating the cycle. The displacers are not af-fected by turbulence, pressure or chemicals and are excellent for tanks with viscous ordirty liquids. The level differential is easily adjusted by repositioning of the displacers onthe 316SS cable.

A magnetic coupling completely seals the switch(es) in the housing from the productand environment, assuring high reliability and enhanced safety. Alarm capability is de-picted above. Side-mounted flange models are applicable for all bin levels. Top-of-the-bin suspension mounted models for high and intermediate point level provide improvedsensitivity (in materials with bulk densities as low as 5 pounds per cubic foot), and en-hanced vertical adjustment capability compared to flange mounted models. Conve-nient external adjustment screws simplify field setup. Material problems associated withflange mounted models are solved by using suspended models. Elastomeric di-aphragms are typically used in products such as fly ash, plastics, grain, powders,foundry sand, cement, aggregate, coal metal chips and glass. For pneumatic (pressure)applications, use of porous filter fabric diaphragms eliminates venting requirements dueto inherent ability to breathe. Many different diaphragm materials are available to fill thewide variety of needs in the industrial market.

Liquid level in external piping equals level in tank. When level rises to high limit, float inupper model 123 is lifted, actuating switch to sound high level alarm. When level dropsto low limit, lower model 123 sounds low level alarm.

Introduction to Mercoid, Anderson,Proximity and Dwyer Level Controls For Reliable Liquid or Dry Bulk Level Monitoring and Control

Important NoteThe control hook-ups and sketches, and other application information shown inthis catalog are generalized and abbreviated to present the basic application ideaonly.We believe this application information to be reliable, but it is intended for useby persons, at their own discretion, having technical skill and knowledge of the

business. Neither Dwyer Instruments, Inc., nor the Mercoid, W.E. Anderson orProximity Divisions, shall be liable for loss, damage, or expense directly or in-directly arising from the use of any product described herein. In no event shallany of these Companies be liable for direct, indirect, special, or consequentialdamages.

Mercoid displacer typelevel controls, ideal forcontrolling industrialsump pumps.

Proximity explosion proof Ultra-MagTM dry level switches provide highly reliablepowder and bulk solids level monitoring capability with either the suspended (“S”)or flange (“F”) mounted models.

Mercoid model 123 level controls provide high and low alarm on large deaeratortank.

Switches control water level and tank pressure.

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MODELS

Rugged and reliable the Flotect® L4 Level switch operates auto-matically to indicate tank level. Perfect for starting or stopping pumps,opening or closing valves, or actuate level alarm signals. A unique mag-netically actuated switching design gives superior performance. Thereare no bellows, springs, or seals to fail. Instead, the free-swinging floatattracts a magnet within the solid metal switch body, actuating a snapswitch by means of a simple lever arm. Float arm hinge design limitsthe arm angle to prevent vertical hangup.

FEATURES• Leak proof body machined from bar stock• Choice of floats dependent on maximum pressure and specific

gravity• Weatherproof, designed to meet NEMA 4• Explosion-proof (listings included in specifications)• Installs directly and easily into tank with a thredolet or flange (see

application drawings)• Electrical assembly can be easily replaced without removing the

unit from the installation so that the process does not have to be shut down.

• Horizontal installation or optional top mount vertical installation

APPLICATIONS• Direct pump control for maintaining level• Automatic tank dump operations• Control levels or provide alarms in sumps, scrubber systems, hydro-pneumatic tanks, low pressure boilers, and various waste water/sewage treatment processes

1-1/2 THREDOLETCUT HOLE 1-15/16 [49] DIA.

STANDARD INSTALLATION

HORIZONTAL, 2-1/2 THREDOLET INSTALLATIONWITH OPTIONAL 2-1/2 [64] SPHERICAL FLOAT

CUT HOLE2-7/8 [73] DIA.

2-1/2THREDOLET

2-1/2 X 1-1/2FACE BUSHING

ANSI RF THREADEDREDUCING FLANGE

11-3/4[298.5]3/4 NPT

HORIZONTAL, FLANGE INSTALLATION

3/4 NPT ANSI RFTHREADEDREDUCINGFLANGE

*FLANGE FACE TO CENTERLINE OF FLOATSPECIFIED BY CUSTOMER. NORMALLYSHOULD NOT EXCEED 20˝ [508 mm].

VERTICAL, FLANGE INSTALLATION

APPLICATION DRAWINGS FOR FLOTECT® FLOAT SWITCHES

SPECIFICATIONSService: Liquids compatible with wetted materials.Wetted Materials:

Float and Rod: 316 SS.Body: Brass or 316 SS standard.Magnet Keeper: 430 SS standard, 316 SS or Nickel optional.

Temperature Limits: 4 to 275°F (-20 to 135°C) standard, MT high temper-ature option 400°F (205°C) [MT option not UL, CSA, ATEX, or SAA].Pressure Limit: Brass body 1000 psig (69 bar), 316 SS body 2000 psig (138bar). Standard float rated 100 psig (6.9 bar). For other floats see options.Enclosure Rating: Weatherproof and Explosion-proof. Listed with UL andCSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX 0344 II 2 G EEx d IIB T6 -20°C≤Tamb≤75°CEC-Type Certificate No.: KEMA 03 ATEX 2383SAA: Exd II C T6 (T amb = 60°C). IP66 C1 I, Zone I. Also FM approved.Switch Type: SPDT snap switch standard, DPDT snap switch optional.Electrical Rating: UL, FM, ATEX and SAA models: 10A @ 125/250 VAC (V~).CSA models: 5A @ 125/250 VAC (V~); 5A res., 3A ind. @ 30 VDC (V ). MV option: 1A @ 125 VAC (V~); 1A res., .5A ind. @ 30 VDC (V ). MT option: 5A @ 125/250 VAC (V~). [MT and MV option not UL, CSA, FM, ATEX or SAA].Electrical Connections: UL and CSA models: 16 AWG, 6˝ (152 mm) long.ATEX and SAA unit: terminal block.Process Connection: 1-1/2˝ male NPT standard, 2-1/2˝ male NPT requiredfor optional floats.Mounting Orientation: Horizontal installation standard, optional vertical topmount.Weight: 4 lb 9 oz (2.07 kg).Dead Band: 3⁄4˝ (19 mm) for standard float.Specific Gravity: 0.7 minimum with standard float. For other floats see options.Agency Approvals: UL, CSA, FM, CE and ATEX.

FLOAT OF 316 STAINLESSSTEEL (STANDARD)

FLOAT ARM AND BLOCK

316 STAINLESS STEELOR BRASS

HINGEPIN

DEFLECTIONSTOP

1-1/2 NPT

SWITCH BODY OFBRASS OR 316

STAINLESS STEEL

1-5/8[41.28]

5[127]

HEX FLOATCONNECTION

LOCKNUT

6[152.4]

19-5/32[486.57]

MAGNET KEEPER430 STAINLESS

STEEL

8-5/32[207.17]

5-31/32[151.61]

3-15/16[100.01]

2-1/2[63.5] 3-11/32

[84.93]

16 GA. LEADS,6 [152.4] LONG

EXPLOSION PROOFHOUSING WITH 3/4CONDUIT CONNECTION

SeriesL4 Float Switch

Magnetically Operated Switch, Leak Proof Body, Explosion-Proof ®

®

Model No.L4L4SS

DescriptionBrass body, side wall mounting316SS* body, sidewall mounting

*316SS body and float with 430SS magnet keeper (wetted part).

Options for L4 Switches above — Add suffixes to model numbersDPDT contacts, add suffix -D ...................................................................................Gold Plated Contacts option for dry circuits, add suffix -MV(see electrical rating in specifications, no listings or approvals).....................................High Temperature option rated 400°F (204°C), add suffix -MT(see electrical rating in specifications, no listings or approvals).....................................Time Delay Relay option with 2 SPDT contacts, adjustable from 0-1to 0-31 minutes. Add suffix -TRI (increasing flow) or -TRD (decreasing flow) (no listings or approvals) ........................................................316 SS Magnet Keeper option to replace standard 430 SS,add suffix -316............................................................................................................ATEX approved construction, add suffix -AT ..............................................................SAA approved construction, add suffix -SAA .............................................................Top Mounted option for vertical flange installation (distance from flange face to centerline of float to be specified, 20˝ (508 mm) maximum), add suffix -TOP ...................................................................Optional Floats (all 2-1/2˝ spherical):304 SS rated 50 psig (3.5 bar) and 0.5 min. s.g., add suffix -50..................................316 SS rated 150 psig (10.3 bar) and 0.7 min. s.g., add suffix -150............................304 SS rated 300 psig (20.7 bar) and 0.7 min. s.g., add suffix -300............................

Consult factory for price and availability of fittings for L4 installation. Thredolets, bush-ings, and flanges are available in a variety of sizes and materials.

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SPECIFICATIONS Service: Liquids compatible with wetted materials. Wetted Materials:

Float: Solid polypropylene or 304 SS.Lower Body: Brass or 303 SS.Magnet: Ceramic.External Float Chamber (Tee): Matches lower body choice of brass or 303 SS.Other: Lever Arm, Spring, Pin, etc.: 301 SS.

Temperature Limit: -4 to 220°F (-20 to 105°C) Standard, MT hightemperature option 400°F (205°C)(MT not UL, CSA or ATEX). ATEX compli-ant AT option ambient temperature: -4 to 167°F (-20 to 75°C) process tem-perature: -4 to 220°F (-20 to 105°C).Pressure Limits: See chart below. Enclosure Rating: Weatherproof and Explosion-proof. Listed with UL andCSA for Class I, Groups A, B, C and D; Class II, Groups E, F, and G.(Group A on stainless steel body models only).ATEX 0344 II 2 G EExd IIC T6 Process Temp≤75°C. EC-Type Certificate No.: KEMA 04ATEX2128 Switch Type: SPDT snap switch standard, DPDT snap switch optional.Electrical Rating: UL models: 5A @ 125/250 VAC (V~). CSA and ATEXmodels: 5A @ 125/250 VAC (V~); 5A res., 3A ind. @ 30 VDC (V ). MV option: .1A @ 125 VAC (V~). MT option: 5A @125/250 VAC (V~). [MT optionnot UL, CSA or ATEX]. Electrical Connections: UL models: 18 AWG, 18˝ (460 mm) long. CSA andATEX models: terminal block.Upper Body: Brass or 303 SS. Conduit Connection: 3/4˝ male NPT standard, 3/4˝ female NPT onjunction box models.Process Connection: 1˝ male NPT on models without external floatchamber, 1˝ female NPT on models with external float chamber.Mounting Orientation: Horizontal with index arrow pointing down.Weight: Approximately 1 lb (.5 kg) without external float chamber, 1.75 lb(.8 kg) with external float chamber.Specific Gravity: See chart below.Agency Approvals: UL, CSA, CE and ATEX.

MODELS

SeriesL6 Liquid Level Switch

Easy In-wall or External Installation, Up to 2000 psig (138 bar)

MODEL L6 WITH SPHERICAL FLOAT

MODEL L6 WITH CYLINDRICAL FLOAT

®

®

MODEL L6 WITH EXTERNAL FLOAT CHAMBER

Surprisingly compact, the Flotect® L6 is designed and built for yearsof trouble-free service in a wide variety of process liquid level applica-tions. Operation is simple and dependable with no mechanical linkageas the level switch is magnetically actuated. The float lever pivotedwithin the body moves when the process liquid displaces the float. Amagnet on the opposite end of the float lever controls a second magneton the switch actuating lever located in the switch housing.

FEATURES• Leak proof lower body machined from bar stock• Choice of models for direct side wall mounting or mounted in a tee

to act as an external float chamber• Weatherproof• Explosion-proof (listings included in specifications)• Electrical assembly can be easily replaced without removing the

unit from the installation so that the process does not have to be shut down

• Sensitive to level changes of less than 1/2˝ (12 mm)

Ø1 [25.40] x 2 [50.80]LONG FLOAT

1 MALE NPT

2-7/8[73.03]

1-1/16[26.99] 6-1/2

[165.10]

Ø1-1/16[26.99]

3/4 MALE NPTCONDUIT CONNECTION

Ø1 [25.40]

1-3/4[44.45]

1 MALE NPT

3/4[19.05] 6

[152.40]

Ø1-1/16[26.99]


1 FEMALENPT TYP 2 PLACES

3-5/64[78.18]

1-9/64[28.97]

2 [50.80]HEX 8-9/16

[217.49]


Ø1-1/16[26.99]

Model No.

L6EPB-B-S-3-OL6EPB-B-S-3-AL6EPB-B-S-3-CL6EPB-B-S-3-BL6EPB-B-S-3-HL6EPB-S-S-3-OL6EPB-S-S-3-AL6EPB-S-S-3-CL6EPB-S-S-3-SL6EPB-S-S-3-L

Body

BrassBrassBrassBrassBrass

303 SS303 SS303 SS303 SS303 SS

Installation

Side Wall MountingSide Wall MountingSide Wall MountingBrass External Float Chamber (Tee)Brass External Float Chamber (Tee)Side Wall MountingSide Wall MountingSide Wall Mounting304 SS External Float Chamber (Tee)304 SS External Float Chamber (Tee)

Float Material

Polypropylene Spherical304 SS Cylindrical304 SS SphericalPolypropylene Spherical304 SS SphericalPolypropylene Spherical304 SS Cylindrical304 SS SphericalPolypropylene Spherical304 SS Spherical

Max. Pressurepsig (bar)

1000 (69)200 (13.8)350 (24.1)250 (17.2)250 (17.2)2000 (138)200 (13.8)350 (24.1)2000 (138)350 (24.1)

Min.Sp. Gr.

0.90.50.70.90.70.90.50.70.90.7

Options:Gold Plated Contacts option for dry circuits,add suffix -MV(see electrical rating in specifications)High Temperature option rated 400°F (204°C), add suffix -MT(see electrical rating in specifications, no listings or approvals, only available on models with stainlesssteel floats)CSA and UL approved construction, includes weatherproof andexplosion-proof junction box, add suffix -CSAATEX approved construction includes, weatherproof and explosion-proof,junction box add suffix -ATDPDT contacts, change seventh character in modelnumber to “D”. Example: L6EPB-B-D-3-O303 Stainless Steel Upper Body, change fifth character in model number to “S”. Example: L6EPS-S-S-3-S

Options Not Shown: 1-1/2˝ and 2˝ male NPT process connection, 2˝ femaleNPT connection tee, and top mount.

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Liquid Level SwitchLow Cost, Leak Proof BodyExcellent Chemical Resistance

Model L8 Flotect® Liquid Level Switch features a leakproof body and float constructed from tough, durablepolyphenylene sulfide (equivalent to Ryton®) which has excel-lent chemical resistance. Because the liquid level snap switch ismagnetically actuated, there is no direct mechanical linkage toleak or fail, assuring longer life and decreased maintenancecosts. This inexpensive unit is ideal for liquid level alarm, indi-cation or control. Installation is quick and easy — simply installin a horizontal position with the index arrow pointing down.

The L8 Flotect®Liquid Level Control is UL recognized as an in-dustrial motor controller per UL standard 508, suitable formounting in a protected environment. This lightweight switchcan be used in numerous chemical process, industrial systemsand similar applications where process conditions are compati-ble with polyphenylene sulfide, ceramic 8 and 316 SS. This liq-uid level switch provides accurate setpoint control of liquidswith specific gravities as low as 0.6. This compact and reliablecontrol is designed to handle temperatures up to 212°F (100°C)and pressures to 150 psig (10 bar).

APPLICATIONSThe Model L8 Flotect® Liquid Level Switch is ideal for prede-termined liquid levels in tanks through pump control or sole-noid valve control. It provides excellent liquid level alarm orindication when combined with the Series AN14 Indicating An-nunciator.

• Environmental control • Chemical/Petroleum processing• Waste water • Plating and washing tanks• Scrubber systems • Sewage treatment• Holding tanks • Car washes• Cooling towers • Remediation systems

SPECIFICATIONSService: Compatible liquids.Wetted Materials:

Float and Body: Polyphenylene Sulfide (PPS).Pin and Spring: 316 SS or Inconel.Magnet: Ceramic 8.

Temperature Limit: 212°F (100°C).Pressure Limit: 150 psig (10.34 bar).Enclosure Rating: General purpose. WP option is weatherproof.Switch Type: SPDT snap switch. MV option is a SPDT gold con-tact snap switch.Electrical Rating: 5A @ 125/250 VAC, 5A resistive, 3A inductive @30 VDC. MV option: 1A @ 125 VAC, 1A resistive, 0.5A inductive @30 VDC.Electrical Connections: 18 AWG, 18˝ (460 mm) long.Conduit Connection: 1/2˝ male NPT.Process Connection: 1˝ male NPT.Mounting Orientation: Horizontal with index arrow pointing down.Weight: 5 oz (0.142 kg).Agency Approvals: CE, UL 508 for US and Canada.Specific Gravity: 0.6 minimum.

ModelL8

1/2 NPTM 1-5/16 OCTAGON(33.34)

ø1-21/32(41.31) 1 NPTM

ø1-1/8(28.58)

2-17/32(64.29)

4-5/16(109.54)

3-1/16(77.79)

10.875(276.23)

1/2 FEMALE NPTCONDUIT CONNECTION

C

Model L8 Model L8-WP

L8 Level Switch

OPTIONS:Gold Plated Contacts, for dry circuits. Rated 1A @ 125 VAC; 1Aresistive, 0.5A inductive @ 30 VDC. To order add suffix -MV. Example: L8-MVInconel® Option. Inconel® replaces standard 316 SS wetted parts.Wetted parts are Inconel®, ceramic 8, and Polyphenylene Sulfide.To order add suffix -INC.Example: L8-INC

Weatherproof Enclosure. Optional housing is phenylpolioxideand provides weatherproof protection for electrical wiring. To orderadd suffix -WP. (Not UL approved)Example: L8-WP

pg226 7/29/05 8:39 AM Page 1


Level

Mini-Size Level SwitchEasy In-wall or External Installation, Specific Gravities as Low as 0.5

The Mini-Size Series L10 Flotect® Level Switches combine low costwith top quality materials and construction for great value and years of re-liable liquid level control. Wide media compatibility is assured with a choiceof brass or stainless steel bodies and external tees; polypropylene or stain-less steel floats. Two basic configurations are offered; with 1" male NPTthreads for direct side mounting through a half coupling or with factory in-stalled tee for external mounting.

All Series L10 controls feature a hermetically sealed, magnetically actuat-ed SPST reed switch which is encapsulated in a polypropylene housing.Units are quickly and easily adjusted for your choice of normally open ornormally closed operation thanks to a unique patented design. Just loosentwo screws and instantly slide the switch assembly to the action required.N.O. and N.C. markings are clearly visible. This feature also speeds switchreplacement if damage occurs.

Three types of floats are offered to accommodate liquids with specific gravitiesas low as 0.5; maximum pressures to 2000 psig (137.8 bar). Wire leads are 22AWG x 18" (460 mm) and exit the switch assembly through 1/8˝ male NPTthreads. These controls are UL recognized and CSA listed.


Float: Solid Polypropylene or 304 SS.Body: Brass or 303 SS.Magnet: Ceramic.External Float Chamber (Tee): None, Brass, or 304 SS.Other: Lever Arm, Pin, Spring, etc.: 301 SS.

Temperature Limit: 200°F (93°C).Pressure Limit: See chart below.Switch Type: SPST hermetically sealed reed switch. Field adjustablefor normally open or normally closed.Electrical Rating: 1.5A @ 24 VDC resistive, 0.001A @ 200 VDCresistive, 0.5A @ 125 VAC.Electrical Connections: 22 AWG, 18˝ (460 mm) long.Conduit Connection: 1/8˝ male NPT.Process Connection: 1˝ male NPT standard on models withoutexternal float chamber. Change 3 in model number to 4 for 1-1/4˝, to 5for 1-1/2˝, or 6 for 2˝. 1˝ female NPT on models with external floatchamber. Mounting Orientation: Horizontal with index arrow pointing down.Weight: Approximately 9 oz (0.255 kg) without external float chamber,2.25 lb (1.02 kg) with external float chamber.Specific Gravity: See chart below.Agency Approvals: UL and CSA.Switch Enclosure: Polypropylene.

SeriesL10

MODELS

1-3/4[44.5]

3-1/4[82.6]3/4

[19.1]1 [25.4]

2-1/4 [57.2]

1/4 [6.4]TRAVEL TONORMALLYCLOSEDPOSITION

1 MALE NPT 1/8 NPT –

SWITCH SHOWNIN NORMALLY

OPEN POSITION

1 [25.4]DIA. FLOAT

2-7/8[73.0] 1-1/16

[27.0]

3-1/2[88.9]

1 [25.4]

2-1/4 [57.15]

1 [25.4] DIA. X2 [50.8] LONG

FLOAT

1 MALE NPT

1/8 NPT –SWITCHSHOWN

IN NORMALLYOPEN POSITION

1/4 [6.4]TRAVEL TONORMALLYCLOSEDPOSITION

1-1/4 [73.0]3

[76.2]

2-3/8[60.3]

5-7/16[138.1]

1[25.4]

1FEMALE

NPT

1 [25.4]2-1/4 [57.2]

1/4 [6.4]TRAVEL TONORMALLYCLOSED POSITION

1/8 NPT SWITCHSHOWN

IN NORMALLYOPEN POSITION

®

NORMALLY OPEN NORMALLY CLOSED

Spherical Float Cylindrical FloatExternal Float Chamber

ModelNumber

L10-B-3-OL10-B-3-AL10-B-3-CL10-B-3-BL10-B-3-HL10-S-3-OL10-S-3-AL10-S-3-CL10-S-3-SL10-S-3-L

BrassBrassBrassBrassBrass

303 SS303 SS303 SS303 SS303 SS

Side Wall MountingSide Wall MountingSide Wall Mounting

Brass External Float Chamber (Tee)Brass External Float Chamber (Tee)

Side Wall MountingSide Wall MountingSide Wall Mounting

304 SS External Float Chamber (Tee)304 SS External Float Chamber (Tee)

Polypropylene Spherical304 SS Cylindrical304 SS Spherical

Polypropylene Spherical304 SS Spherical

Polypropylene Spherical304 SS Cylindrical304 SS Spherical

Polypropylene Spherical304 SS Spherical

1000 (69)200 (13.8)350 (24.1)250 (17.2)250 (17.2)

2000 (137.8)200 (13.8)350 (24.1)

2000 (137.8)350 (24.1)

0.90.50.70.90.70.90.50.70.90.7

BodyMaterial

Installation/Mounting

FloatMaterial

Min.S.G.

Max. Press.psig (bar)

pg227 7/29/05 8:40 AM Page 1


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SeriesCFS Cable Float Switch

No Hazardous Mercury, Adjustable Counterweight, General Purpose

SPECIFICATIONSService: Compatible liquids.Wetted Materials: Polypropylene housing, PVC cable.Temperature Limits: 140°F (60°C).Pressure Limits: 60 psi (4 bar).Enclosure Rating: NEMA 4 (IP68).Switch Type: SPDT.Electrical Rating: 10 A @ 250 VAC, resistive.Mounting Orientation: Vertical.Weight: CFS-2: 1.416 lb (.62 kg).

CFS-10: 3.316 lb (1.48 kg).Agency Approvals: CE.

Control the level of liquids in filling or draining reservoirs and tankswith the Series CFS. The mercury-free switch is designed with aninverter microswitch housed in a polypropylene cover. The unitincludes a counterweight to adjust the stop and start levels of pumpup/pump down application.

MODELS

Ø 1 5/8[41.40]

Ø 5 5/32[131.06]

Ø 3 3/16[81.03]

SeriesFSW Free-Floating Level Switch

Designed for Industrial Applications, Mercury-Free

SPECIFICATIONSService: Compatible liquids, slurries.Wetted Materials: Polypropylene housing, EPDM gland, PVCcable.Temperature Limits: 140°F (60°C).Pressure Limits: 60 psi (4 bar).Enclosure Rating: NEMA 4 (IP68).Switch Type: SPDT.Electrical Rating: 10 A @ 250 VAC, resistive.Mounting Orientation: Vertical.Weight: FSW-6: 2.6 lb (1.2 kg); FSW-15: 3.85 lb (1.75 kg); FSW-30: 6.8 lb (3.1 kg).Agency Approvals: CE.

Series FSW Free-Floating Level Switch is a dual levelswitch designed for filling and draining of tanks, wells, andreservoirs. The shape and interior balance weight ensure impu-rities and dirt will not adhere to the surface, making it ideal forsewage and waste water applications. The mercury-free switchis designed with an inverter microswitch housed in a polypropy-lene cover.

MODELS

6 13/32[162.99] Ø 4 3/64

[102.87]

ModelNumber

CFS-2CFS-10

Cable Length

6.5 ft (2 m)32.8 ft (10 m)

ModelNumberFSW-6FSW-15FSW-30

Cable Length

19.5 ft (6 m)49 ft (15 m)98 ft (30 m)

pg228 7/29/05 8:41 AM Page 1


Level

ModelF7-MLK Multi-Level Switch Kit

One or Two Station Level Switch, Vertically Mount

Customize a level systemto suit your application requirements. TheF7-MLK Multi-Level Switch Kit contains all the components necessaryfor the design and fabrication of a 1 or 2 station level switch for pipe plugmounting. User can customize stem length (maximum 36˝), actuationpoint, distance between floats, and lead wire lengths. The switch kit isideal for general purpose, low specific gravity, and gas and oil applications.Model F7-MLK includes two level stations (switch, tube, and Buna-N float),two brass extension tubes 12˝ length, four brass tube unions, one end fit-ting, and one mounting plug.

.500[12.7]

12.000 [305]

7.991[201]

.500[12.7]

10.905 [277]

9.220[234]

2 NPT PIPEMOUNTING

1/2" NPT

2.500[63.5]

.875[22.2]

2 EXTENSION TUBES

1 FITTING ASSEMBLY

.500[12.7]

4.000[102] 2 SWITCHES

.500[12.7]

.875[22.2]

1.965[49.9]

Ø1.250 [31.8]

1.916[48.7]

.875[22.2]

2 BUNA-NFLOATS

1 TUBE ENDFITTING

4 TUBEUNIONS

1.128[28.7]

SPECIFICATIONSService: Compatible liquids.Wetted Materials (Float/Stem): Buna-N/Brass.Temperature Limits: 221°F (105°C).Pressure Limits: 150 psig (10 bar).Switch Type: SPST, normally open or normally closed.Electrical Rating: 60 Watts: 0.4A @ 220 VAC, 0.5A @ 110 VAC, 0.2A @ 120 VDC, 0.5A @ 24 VDC.Electrical Connections: 22 AWG x 72˝ (183 cm) leads.Process Connection: 2˝ male NPT pipe plug.Mounting Orientation: Up to 30° angle from vertical.Stem Length: 36˝ (91 cm) maximum.Tube/Fitting Size: 1/2˝ O.D.Minimum Specific Gravity: 0.45.Weight: 3.5 lb (1.6 kg).

ModelF7-MLK2 Multi-Level Switch Kit

316 Stainless Steel, One or Two Station Level Switch, Vertically Mount

SPECIFICATIONSService: Compatible liquids.Wetted Materials (Float/Stem): 316 SS.Temperature Limits: -40 to 275°F (-40 to 135°C).Pressure Limits: 750 psi (52 bar).Switch Type: SPST, selectable N.O. or N.C.Electrical Rating: 20 VA: 0.8A @ 240 VAC, 0.17A @ 120 VAC, 0.3A @30 VDC.Electrical Connections: 18 AWG x 60˝ (152 cm) wire leads.Process Connections: 2˝ male NPT pipe plug.Mounting Orientation: Up to 30° angle from vertical.Minimum Specific Gravity: 0.75.Tube Diameter: 1/2˝ O.D.Stem Length: 36˝ (91 cm) maximum.Weight: 3.3 lb (1.6 kg).

The F7-MLK2 Multi-Level Switch Kit contains all the com-ponents necessary for the design and fabrication of a 1 or 2 sta-tion level switch for pipe plug mounting. The user can customizestem length (maximum 36˝), actuation point, distance betweenfloats, and lead wire lengths. Model F7-MLK2 is constructed of316 SS—ideal for chemicals, corrosive liquids, oils, or high pres-sure applications. Model F7-MLK2 includes two level stationswith floats (switch, tube, and float), two extension tubes 10˝ (254mm) length, three tube unions, one tube connector, one end fit-ting, and one mounting plug.

1.25 SQ(1-1/4)

2 NPT1.5

(1-1/2)

TUBE CONNECTOR3/8 NPT1.75

(1-3/4) FLOAT TUBE ANDSWITCH STATION

Ø2.063(2-1/16)2.125

(2-1/8) TUBE UNION

2.125(2-1/8)

TUBE UNION

FLOAT TUBE ANDSWITCH STATIONØ2.063

(2-1/16)1.186

(1-3/16)TUBE ENDFITTINGS

.500[12.7]

10.000 [254]

2 NPT PIPEMOUNTING

1/2" NPTFEMALE

2 EXTENSION TUBES

.500[12.7]

4.125[108] 2 SWITCHES

2.125[54]

Ø2.062[52.4]

2 SSFLOATS

1 TUBE ENDFITTING

1 TUBECONNECTOR/

3 TUBEUNIONS

1.188[30.1]

1.500[38.1]

1.750[44.5]

Model F7-MLK Multi-Level Switch Kit

Model F7-MLK2 Multi-Level Switch Kit

pg229 7/29/05 8:41 AM Page 1


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Series F7 compact level switches combine low cost and re-liability with fast, simple installation. Hermetically sealed reedswitches are actuated by magnets permanently bonded insidethe float and can be easily adapted to open or close a circuit onrising or falling levels. Vertical mount models are shipped withnormally open switch contacts which close as the float rises to-ward the mounting threads. Reverse switch action by removingthe float, rotating it end-for-end and replacing it on the stem. Ver-tical models mount internally, oriented within 30° of vertical, orselect optional fittings for external mounting. Switch ratings aresuitable for many solid state control systems and monitors oralarms. Simple relay interfaces can be used for higher currentapplications.

① Distance between hex and liquid (S.G. = 1.0) level at actuation point will vary with spe-cific gravity changes.*PBT - Polybutylene Terephthalate.† Incudes 316 SS clip.‡ Spherical floats.Note: F7-SB, F7-SS2 not CSA listed.**F7-MPP is normally closedF7-MPP-NO is normally open

SeriesF7 Level Switches - Vertical

Low Cost, Reliable and Compact, Hermetically Sealed Contacts

F7-SB

MODELS

Model (A) Stem (B) Float (C) Float (D) ActuationNumber Length Diameter Height from Hex①

F7-SB 2.75 [70] 1.38 [35] 1.13 [29] 1.2 [31]

F7-SS2 2.06 [52] 1.0 [25] 1.0 [25] 0.73 [19]

F7-MPP 1.63 [41] 0.63 [16] 0.63 [16] 0.47 [12]

F7-PP 2.18 [55] 1.18 [30] 1.0 [25] 0.69 [18]

F7-BT 2.18 [55] 1.18 [30] 1.0 [25] 0.69 [18]

F7-K 2.13 [54] 1.0 [25] 1.0 [25] 0.65 [17]

F7-C11 2.06 [52] 1.0 [25] 1.0 [25] 0.56 [14]

F7-C21 2.06 [24] 1.0 [25] 1.0 [25] 0.56 [14]]

F7-BB 3.19 [81] 1.88 [48] 1.81 [46] 1.19 [30]

F7-PS 3.38 [86] 1.88 [48] 1.88 [48] 1.25 [32]

F7-PVC 3.44 [87] 1.5 [38] 1.81 [46] 0.75 [19]

F7-T1 3.47 [88] 2.13 [54] 1.94 [49] 0.92 [22]

F7-ST713 3.38 [86] 2.06 [52] 2.06 [52] 1.09 [28]

F7-ST714 3.38 [86] 2.06 [52] 2.06 52] 1.09 [28]

DIMENSIONS in Inches [mm]

1/8" NPT(M)A

C

B

D

F7-ST713

Optional Fittings — For external mounting of vertical modelsA-347, 1⁄8" x 11⁄4" NPT carbon steel adapterA-347-SS, 1⁄8" x 11⁄4" NPT 316 SS adapterA-348, 1⁄8" x 11⁄2" NPT carbon steel adapterA-348-SS, 1⁄8" x 11⁄2" NPT 316 SS adapter

Model Applications Material Temp. Press. Min. Electrical Wire Mtg WeightNumber Float/Stem Limits Limits S.G. Rating Leads NPT(M) oz (g)

F7-SB General purpose Buna-N & Epoxy/ 220˚F 150 psig 0.60 25 VA: 1A @ 220VAC 22 AWG 18˝ 1/8˝ 2 (58)316 SS 105˚C 10 bar [45 cm]

F7-SS2 High temp/pressure, 316SS (CYC)/ 300˚F 450 psig 0.75 25 VA: 1A @ 200VAC 22 AWG, 18˝ 1/8˝ 1.2 (34))corrosives 316 SS 149˚C 31 bar [45 cm]

F7-MPP** Broad chemical Polypropylene/ 180˚F 100 psig 0.90 10 VA: 0.1A @ 100VAC 22 AWG, 24˝ 1/8˝ 0.8 (23)compatibility Polypropylene 82˚C 6.89 bar [61 cm]

F7-MPP-NO** Broad chemical Polypropylene/ 176˚F 100 psig 0.90 50 VA: 0.2A @ 240VAC 22 AWG, 24˝ 1/8˝ 0.8 (23)compatibility Polypropylene 80˚C 6.89 bar [61 cm]

F7-PP Broad chemical Polypropylene & 220˚F 100 psig 0.60 30 VA: 0.14A @ 220VAC 22 AWG, 24˝ 1/8˝ 0.8 (23)compatibility Epoxy/Polypropylene 105˚C 6.89 bar [61 cm]

F7-BT Oils & Fuels Buna-N & Epoxy/ 220˚F 150 psig 0.45 30 VA: 0.14A @ 220VAC 22 AWG, 24˝ 1/8˝ 0.7 (20)PBT* 105˚C 10 bar [61 cm]

F7-K Food/beverage, Kynar®/ 180˚F 100 psig 1.00 50 VA: 0.25A @ 150VAC 22 AWG, 24˝ 1/8˝ 1.5 (43)corrosives Kynar® 82˚C 6.89 bar [61 cm]

F7-C11 General Buna-N/ 180˚F 150 psig 0.45 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/8˝ 1.5 (43)purpose Brass 82˚C 10 bar [61 cm]

F7-C21 Oils & water, Buna-N/ 180˚F 150 psig 0.45 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/8˝ 1.5 (43)general purpose 316 SS 82˚C 10 bar [61 cm]

F7-BB High viscosity Buna-N/ 180˚F 150 psig 0.55 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/4˝ 5 (140)liquids Brass 82˚C 10 bar [61 cm]

F7-PS Water-based liquids, Polysulfone/ 225˚F 50 psig 0.55 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/4˝ 4 (110)complies with FDA Polysulfone† 107˚C 3 bar [61 cm]

F7-PVC Chemical & CPVC/ 180˚F 15 psig 0.85 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/4˝ 5 (140)plating CPVC 82˚C 1 bar [61 cm]

F7-T1 Viscous, sticky or Teflon®/ 300˚F 30 psig 0.80 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/4˝ 6 (170)corrosive liquids Teflon® 149˚C 2 bar [61 cm]

F7-ST713‡ Oils, water & 316 SS/ 300˚F 750 psig 0.80 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/4˝ 6 (170)chemicals 316 SS 149˚C 52 bar [61 cm]

pg230 7/29/05 8:42 AM Page 1


Level

4-5/8 MAX(116.8)

1/2-14 NPT

22 AWGLEAD WIRES

13/16 MIN(20.6)FITTING

CENTERLINE3/32

(2.54)1-7/32 MAX

(31.0)

APPROXIMATEACTUATION

LEVEL

1-5/32 MAX(29.2)

2.6[65]

3.8[97]

0.7 DIA.[18]

0.3[8]

* Contains 20% glass.† F7-HSS is rated explosion-proof for Class I, Groups A, B, C, D; Class II,Groups E, F, G; Class III.

Series F7 Horizontal Mount Level Switches are designed tomount through the walls of tanks and other vessels. Internally mount-ed models F7-HPS-1, F7-MHS and F7-SS5 are secured to the wall of thetank or vessel from the inside while model F7-HPS-2 is mounted fromthe outside (externally). Model F7-HSS can be installed internally or ex-ternally.

SeriesF7 Level Switches - Horizontal/Specialty

Low Cost, Hermetically Sealed Contacts

2.9"[73]

1/2" NPT

4.25[108]

0.63"[16] .69

[18]

5.770[146.558]

3.500[88.9]

3.250[82.55]

Ø1.50[38.1]

1/2-13 BULKHEAD

3.750[95.3]

1/2-13THREAD

2.875[73]

1.00[25.4]

1.00[25.4]

1.375[34.9]

.1875 [4.76]

F7-HPS-11

F7-HPS-21

F7-HPS-11 F7-HPS-21 F7-MHS

F7-HSS

F7-SS5BNCF7-LL

F7-EB

F7-WBB

F7-MHSF7-WBB

F7-LL

F7-EB

F7-HSS

F7-SS5BNC

Series F7 Specialty Level Switches are designed for unique ap-plications. Model F7-SS5B/BNC can be used with viscous liquids or liq-uids with suspended metal particles. Use model F7-LL for low leveldetection (>5/8˝). The non-intrusive bottle style F7-EB mounts com-pletely outside the tank at the actuation level. Suspend model F7-WBBin stand pipes or sumps for leak detection or drop into wells for ground-water monitoring.

MODELS - Horizontal Mount Switches

1/2[12.7] HEX

1/8 NPT

2-3/32[53]

1/4[6.4]

1-15/32[37]15/16

[24]

Ø 5/16[8]Ø 1-7/8

[47]

3-1/2[89]

Ø1-7/16 [37]

1-5/16 [33]

1/2 NPT FEMALE

JUNCTION BOX F7-EBX ONLY

1-3/4[44.5]

4-1/4[108]

2-3/4[70]

7[178]

2-1/8 [54]

Ø2-5/8 [67]

MODELS - Specialty Switches

Model Applications Material Temp. Press. Min. Electrical Wire Mtg WeightNumber Float/Stem Limits Limits S.G. Rating Leads oz (g)

F7-HPS-11 Water, oils, chemicals Polypropylene/ 225˚F 100 psig 0.55 20 VA: 0.08A @ 240VAC 22 AWG 24˝ 5/8˝-11 1.5 (43)NSF approved Polypropylene* 107˚C 6.89 bar [61 cm] thread (int)

F7-HPS-21 Water, oils, chemicals Polypropylene/ 225˚F 100 psig 0.55 20 VA: 0.08A @ 240VAC 22 AWG, 24˝ 1/2˝ NPT 2 (58)NSF approved Polypropylene* 107˚C 6.89 bar [61 cm] (ext)

F7-MHS High temperatures, 316 SS/ 392˚F 100 psig 0.70 30 VA: 0.14A @ 220VAC 22 AWG, 24˝ 1/2˝-13 bulk- 2 (58)corrosives 316 SS 200˚C 6.89 bar [61 cm] head (int)

F7-HSS† High temp/pressure, 316 SS 392˚F 300 psig 0.60 30 VA: 0.14A @ 220VAC 22 AWG, 24˝ 1/2˝ NPT 3 (94)corrosives, Expl. 316 SS 200˚C 20.7 bar [61 cm] (int/ext)

Model Style/ Material Temp. Press. Min. Electrical Wire Mtg WeightNumber Applications Float/Stem Limits Limits S.G. Rating Leads oz (g)

F7-SS6 Bent stem/liquids 316 SS/ 300˚F 100 psig 0.70 20 VA: 0.08A @ 220VAC 22 AWG, 24˝ 1/8˝ NPT 2 (58)with metal particles 316 SS 149˚C 7 bar N.O. operation [61 cm] male

F7-SS6B Bent stem/liquids 316 SS/ 300˚F 100 psig 0.70 20 VA: 0.08A @ 220VAC 22 AWG, 24˝ 3/8˝-24” 2 (58)with metal particles 316 SS 149˚C 7 bar N.C. operation [61 cm] male

F7-EB‡ Non-intrusive bottle type/ Brass/316 SS 300˚F 500 psig 0.75 20 VA: 0.08A @ 240VAC 18 AWG, 24˝ 3/4˝ NPT 5 lb 5 ozoutside tank mounting (Brass housing) 149˚C 34 bar [61 cm] female (2.4 kg)

F7-LL Vertical/detect levels as Polysulfone/ 180˚F 50 psig — 20 VA: 0.08A @ 240VAC 22 AWG, 72˝ 1/8˝ NPT 2 (58)low as 5/8” Buna-N 82˚C 3 bar [182 cm] male

F7-WBB 25 ft. cable, slosh shield/ Brass/ 180˚F 150 psig 0.45 20 VA: 0.08A @ 240VAC 22 AWG, 25 ft. — 10.8 (310)sumps, stand pipes Buna-N 82˚C 10 bar [7.6 m]

‡ Explosion proof model available with DPDT switch. Specify F7-EBX.

pg231 7/29/05 10:06 AM Page 1


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Miniature Multi-Station Level SwitchCustom, Lightweight, Low Cost, 316 SS or Buna-N Floats

SeriesF7-MM

Miniature custom level switches with a sturdy. lightweight designare ideal for tanks less than four feet (1.2 m) deep. Control up to five dif-ferent level points across a maximum length of 48˝ (121 cm). Stems andmounting fixtures are available in 316 SS or brass.

L1

L2

L3

L4

L5

LO

A

D

B

1/8 NPT[.125]

1/2 HEX[12.7]

1-1/16 Hex[26.97]

3/4 NPT

1-5/16 Hex[33.32]

1 NPT

01.000[25.40]

15/16[23.80] 0 29/32

[22.86]

1-1/4[31.75]

0 1-1/2[38.10]

1[25.40]

Ø 29/32[22.61]

1-19/32 [40.49] Ø 29/32

[22.86]

1-3/32[27.79] 1-1/32

[26.16]

1-7/32[30.99]

1-9/64[29.79]

1-1/8[28.58]

0 3-5/8[92.08]

6 HOLES 0 5/16 [7.95]EQUALLY SPACEDON A 3.000 B.C. [76.20]

1/8 NPT

3/16[4.78]

1-1/2 HEX[38.10]

1-5/16-12 THREAD3/8-24THREAD

SPECIFICATIONSService: Compatible liquids.Wetted Materials: Stem, connection, and float.Temperature Limits: F1 and F2: Water, 180°F (82.2°C); Oil, -40 to250°F (-40 to 121.1°C). All other floats: -40 to 300°F (-40 to 148.9°C).Electrical Connection: 24 (61 cm) free leads #22 AWG, Teflon® jacketed.Mounting Orientation: Vertical ±30°.

FLOAT A B DTYPE in. in. in.

F1 7/8 1-3/4 3/4F2 3/4 1-7/8 1-1/16F3 3/4 1-13/16 15/16F4 13/16 2-7/16 1-7/16F5 9/16 2-7/16 1-3/4F6 15/16 1-7/8 7/8, NO

1-3/16, NCF7 13/16 2 1-1/8F8 3/4 1-7/8 1-1/16

FLOAT DIMENSIONS

MOUNTING DIMENSIONS

Actuation LevelsEach switching point requires one float. A = Minimum distance from actuation point to bottom of mounting.B = Minimum distance between actuation levels.D = Minimum distance from end of unit to lowest actuation point.

Type 1 Type 2 Type 3


F7-MMB1-5F51-03.00-07.00-11.00-15.00-20.00-25.00Multi-station level, 1 to 5 switch pointsBrass with Beryllium copper stops316SS with SS ARMCO PH-15-7MO stops1/8˝ NPT3/4˝ NPT (Cannot be used with float F1, F3, F7 and F8)1˝ NPT (Cannot be used with float F3)3-5/8˝ Flange [Maximum pressure is 50 psi (3.45 bar)]1-5/16-12UNF-2A (Cannot be used with float F3)3/8-24Put 1 to 5 for the number of switch points desiredMaterial Min. s.g. Max. Pres. psi (bar)Buna-N .45 300 (20.68)Buna-N .60 250 (17.24)316SS .70 100 (6.89)316SS .85 150 (10.34)316SS 1.1 400 (27.58)Teflon® .65 1000 (68.95)316SS .85 275 (18.96)316SS .90 600 (41.37)

SPST, .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240 VDCSPST, .8A @ 120 VAC, .4A @ 240 VAC (not UL)NO switch is standard. For NC place an “*” after the corresponding set point distance inthe model numberIn inches referenced from bottom of connection

Repeat for each switch point with dashes in between.No numbers needed beyond the number of switches specified. In inches for example12.25 would be 12.25˝ from the bottom of the process connection.

Maximum overall length of 48 inches (121 cm). Minimum length is L1 + D.

ExampleConstructionStem & ConnectionMaterial

ConnectionType

Switch Points

Float Type

SwitchType

Set PointDistance

Overall LengthOptions

L5L4L3L2L1

L0

F7-MMF7-MM

B

BS

1

123456

#

F1F2F3F4F5F6F7F8

12

00.0000.0000.0000.0000.00

00.00

5 F1 1

F1 F2 F3

F4, F5 F6 F7 F8

Models are built to your specifications

pg232 7/29/05 10:00 AM Page 1


Level

Quick-Ship Multi-Station Level SwitchFast Delivery, Customized, Up to Four Actuation Levels

SeriesF7-MQ

Customize level switches to meet application requirementsquickly and affordably. Switches can be configured with up tofour different control points and stem lengths up to 72˝ (1.82 m).Stems and floats are available in 316 SS or brass.

L1

L2

L3

L4

LO

A

B

D

SPECIFICATIONSService: Compatible liquids.Temperature Limits: F1 and F2 with water: 0 to 180°F (-18 to82°C); Buna-N floats with oil: -40 to 230°F (-40 to 110°C); F3: -40to 300°F (-40 to 149°C).Electrical Connections: 24˝ (61 cm) free leads; #22 AWGTeflon® and #18 AWG Polymeric.Mounting Orientation: Vertical ±30°.

FLOAT DIMENSIONS

Ø 1-1/4[31.75]

1-3/4[44.45]

BUNA-NOPTION 2

1-13/16[46.02]Ø 1-7/8[47.62] 316 SST

OPTION 3

Ø 2-1/16[52.37]

2-3/32[53.16]

F1 F2 F3

MOUNTING DIMENSIONS

1/2 NPT

MOUNTING OPTION 3

2 NPT

1-1/4 SQ[31.75]

1/2 NPT

MOUNTING OPTION 2

1-1/4 NPT

1.000 SQ[25.40]

1/2 NPT



A B D

1-1/2˝ 3˝ 2˝(38.10 mm) (76.20 mm) (50.80 mm)

F7-MQB1-4F33-07.00-11.00-15.00-20.00-24.00-JMulti-station level, 1 to 4 switch pointsBrass with Beryllium copper stops316SS with SS ARMCO PH-15-7MO stops1/2˝ NPT (Float F2, F3 only)1-1/4˝ NPT (Float F1 only)2˝ NPT(Float F2, F3 only)

Put 1 to 4 for the number of switch points desiredBuna-N, min. s.g. 0.75, 150 psi (10.3 bar) max. pres.Buna-N, min. s.g. 0.55, 150 psi (10.3 bar) max. pres.316SS, min. s.g. 0.75, 750 psi (51.7 bar) max. pres.SPST, .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240 VDCSPDT, .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240 VDCNO switch is standard. For NC place an “*” after the corresponding set point distance inthe model number.In inches referenced from bottom of connection


Minimum length is L1+D. Maximum length with Connection Length is 72˝ (1.82 m)

Junction box for wire leads, NEMA 4 (Not available with Connection Type 1)


ConnectionType

Switch Points

Float Type

SwitchType

Set PointDistance

OverallLengthOptions

L4L3L2L1

L0

F7-MQF7-MQ

B

BS

1

123

#F1F2F3

13

00.0000.0000.0000.00

00.00

J

4 F3 3 J


pg233 8/11/05 11:29 AM Page 1


Lev

el

Multi-Station Level SwitchCustomize To Fit Application, Up to Six 316 SS or Buna-N Floats

SeriesF7-MS

Customize level switches to meet application requirementsSwitches can be configured with up to six different controlpoints and stem lengths up to 140 inches (3.56 m). Stems andfloats are available in 316 SS or brass.

SPECIFICATIONSService: Compatible liquids.Wetted Materials: Stem, connection, and float.Temperature Limits: Buna-N floats: 180°F (82.2°C) in water, -40to 230°F (-40 to 110°C) in oil; SS floats: -40 to 300°F (-40 to148.9°C).Wire Leads: 24˝ (61 cm) free leads; #22 AWG Teflon® and #18AWG Polymeric.Mounting Orientation: Vertical ±30°.

L1

L2

L3

L4

L5

L6

LO

A

D

B


A B D

1-1/2˝ 3˝ 2˝(38.10 mm) (76.20 mm) (50.80 mm)

MOUNTING DIMENSIONS

1/2 NPT

2 NPT

1-1/4 SQ[31.75]

1/2 NPT

1[25.40]

1/2 NPT

Ø7-1/2[190.5]

6 HOLES Ø 3/4 [19.05]EQUALLY SPACEDON A 6.000 B.C.[152.4]

1-1/4 NPT

1.000 SQ[25.40]

1/2 NPT

FLOAT DIMENSIONS

Ø 1-1/4[31.75]

1-3/4[44.45]

1-13/16[46.02]Ø 1-7/8[47.62]

Ø 2-1/16[52.37]

2-3/32[53.16]

F7-MSB1-5F31-04.00-07.00-11.00-15.00-20.00-24.00-JMulti-station level, 1 to 6 switch pointsBrass with Beryllium copper stops316SS with SS ARMCO PH-15-7MO stops1/2˝ NPT (Float F2, F3 only)1-1/4˝ NPT (Float F1 only)2˝ NPT3˝ 150# Flange Carbon Steel (Conn. material S only, float F2, F3 only) [Max. pres. 150 psi(10.3 bar)]3˝ 150# Flange 316SS (Conn. material S only, float F2, F3 only) [Max. pres. 150 psi (10.3 bar)]Put 1 to 6 for the number of switch points desiredBuna-N, min. s.g. 0.75, 150 psi (10.3 bar) max. pres.Buna-N, min. s.g. 0.55, 150 psi (10.3 bar) max. pres.316SS, min. s.g. 0.75, 750 psi (51.7 bar) max. pres.SPST, .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240 VDCSPST, .8A @ 120 VAC, .4A @ 240 VAC (Not UL)SPDT, .17A @ 120 VAC, .08A @ 240 VAC, .13A @ 120 VDC, .06A @ 240 VDCNo switch is standard. For NC place an “*” after the corresponding set point distancein the model number.In inches referenced from bottom of connection.


Minimum length is L1+D. Maximum length with Connection Type 1: 36˝ (91.4 cm), Type 2: 60˝ (152.4 cm), and Types 3, 4, 5: 140˝ (355.6 cm).Junction box for wire leads, NEMA 4 (Not available with Connection Type 1)


ConnectionType

Switch Points

Float Type

SwitchType

Set PointDistance

OverallLength

Options

L6L5L4L3L2L1

F7-MSF7-MS

B

BS

1

1234

5

#F1F2F3

123

00.0000.0000.0000.0000.0000.00

00.00

J

5 F3 1 J

F1 F2 F3

Type 1

Type 2

Type 3

Type 4, 5


pg234 7/29/05 9:59 AM Page 1


Level

Low cost, rugged optical level switch provides rapid responsewhile employing no moving parts for stable process control. Thebright red and green LED’s indicate the presence or absence of liq-uid for true, local indication. Three optional materials, 316 SS, polysul-fone and Teflon® provide application flexibility. Compact switch can bequickly mounted horizontally or vertically for each installation.

Optical Level SwitchLow Cost, Compact, LED Indication

SPECIFICATIONSService: Noncoating compatible liquids.

Wetted Materials: See model chart.

Temperature Limit: Process: 200°F (93.3°C), Ambient: 175°F

(79.4°C).

Pressure Limit: 200 psig (13.8 bar).

Repeatability: ±0.02˝ (0.5 mm).

Switch Type: NPN open collector.

Power Requirements: 10 to 28 VDC.

Output Signal: Vout (max) = 28 VDC, Isink (max) = 100 mA.

Current Consumption: 35 mA maximum.

Electrical Connections: 22 AWG, 18˝ (460 mm) long.

Process Connection: 1/2˝ male NPT.

Mounting Orientation: Can be mounted in any position.

Weight: 2.5 oz (0.07 kg).

Specific Gravity: No minimum.

7/8HEX

1/8[3.200]

1/4[6.400]

1-3/4[44.50]

HIGH

LOWRED, +BLK, GNDWHT, CONTROL

82-700405-00

ModelOLS

OLS-10 OLS-11

OLS-12

MODELS

Suggested Specifications Optical level switch shall be Teflon®, 316 SS and Polysulfone orPolysulfone construction. Unit shall provide an NPN open collector out-put signal. Switch shall be capable of mounting in horizontal or verticalposition. Switch shall incorporate LED switch status.

FEATURES•Compact Size•LED Switch Indication•No Moving Parts

APPLICATIONS• Food and beverage systems • Liquid holding tanks• Hydraulic reservoirs • Sumps• Pharmaceutical systems • Air conditioning systems

PRINCIPLES OF OPERATION

The optical level switch employs an LED, which transmits infraredlight. This light is sent through a prism and reflected back to a photo-transistor utilizing two 90° light reflections. With the prism surround-ed by a gas, the light source is cast back to the photo transistor. Whena translucent liquid is introduced to the prism at or above the pointwhere the light source makes contract with the prism, the light isreflected into the liquid, not allowing the photo-transistor to energize.

Model No. Wetted Materials

Model OLS-10 316 SS/Polysulfone

Model OLS-11 Polysulfone

Model OLS-12 Teflon®

pg235 7/29/05 9:58 AM Page 1


Lev

el

SPECIFICATIONSService: Compatible liquids. Castiron is not for use with lethal or flam-mable substances either liquid orgaseous.Wetted Materials: Body: Cast iron.Float and Trim: 304 SS. PackingGland: Brass.Packing: Carbon.Body Gasket: Carbon.Temperature Limit: 365°F (185°C).Pressure Limit: 150 psig (10.34 bar).Enclosure Rating: GeneralPurpose. Optional weatherproof.Switch Type: SPDT snap switch ormercury switch. Optional DPDT ortwo stage.

Electrical Rating: Snap Switch:15A @ 120/240/480 VAC, 0.5A @120 VDC resistive, 0.25A @ 240VDC resistive. Mercury Switch: 4A@ 120 VAC/DC, 2A @ 240 VAC/DC.Electrical Connections: Screwterminal.Conduit Connection: 7/8˝ (22.23mm) hole for 1/2˝ (12.7 mm) conduit.Process Connections: 1˝ femaleNPT.Mounting Orientation: Vertical.Weight: 20 lb (9.1 kg).Agency Approvals: UL and CSA.(Snap switch is not rated).Deadband: Approximately 1-1/2˝(38.1 mm).Specific Gravity: 0.88 minimum.Options: Manual Reset.

Series123 Cast Iron Chamber – Water Level Control

Heavy Duty, Snap Action Type

5-1/2[139.70]

7[177.80]

Ø5-3/4[146.05]

5-3/8[136.53]

1/2 PIPE PLUGTYP 2 PLACES

4-3/4[120.65]

3-9/16[90.50]

1 NPT

7-1/8[180.98]

2-7/16[61.91]

3-9/16[90.50]

1-1/8[28.58]

Designed for boiler applications, the model 123 is primarily usedfor low water cut-off or feed-water control. Other applications includecondensate tanks and deaerators. A special positive snap action switchmechanism eliminates frequent operation due to surging water level.A transparent cover provides convenient visible operation of theswitch. Features a flanged chamber for easy clean out and replace-ment of float or switch mechanism without removing the unit from pip-ing.

®

®

MODELS

SPECIFICATIONSService: Compatible liquids. Cast iron is not for use withlethal or flammable substances either liquid or gaseous. Wetted Materials:

Body: Cast iron. Optional cast steel or 316 SS. Float and Trim: 303 SS, 304 SS, 316 SS, and 430 SS.Option of all 316 SS.Body Gasket: Carbon.

Temperature Limit: 425°F (218°C).Pressure Limit: 300 psig (20.7 bar). Optional rating to400 psig (27.6 bar).Enclosure Rating: NEMA 4X. Optional general pur-pose or explosion-proof.Repeatability: ±1/4˝ (6.4 mm).Switch Type: SPDT snap switch, hermetically sealedsnap switch, or mercury switch. Optional DPDT or twostage.Electrical Rating: Snap Switch: 12A @ 120 VAC, 5A @240 VAC, 0.5A @ 125 VDC resistive, 0.25A @ 250 VDCresistive. Hermetically Sealed Snap Switch: 5A @ 125VAC, 5A @ 240 VAC, 5A @ 30 VDC resistive. MercurySwitch: 4A @ 120 VAC/DC, 2A @ 240 VAC/DC. Highercontact ratings available for the mercury switch.Electrical Connections: Screw terminal.Conduit Connection: 3/4˝ female NPT.Process Connections: 1˝ female NPT.Mounting Orientation: Vertical.Set Point Adjustment: ±1˝ (25.4 mm).Weight: 35 lb (15.9 kg).Agency Approvals: UL.Specific Gravity: 0.6 minimum.

Series102 Flanged Chamber Type Level Control

Operating Pressures to 300 PSIG

Flanged inspection plate allows periodic inspection and clean-out of Model 102float chamber, making unit ideal for use in refineries, chemical plants, and other areaswith potentially dirty liquids. Low cost cast iron chamber is standard. Carbon steel andstainless steel chambers are available on special order. Stainless steel float is standard.

Ø5-3/4[146.05]

6-1/8[155.58]

A

B

6-3/4[171.45]

17-1/2[444.5]

3/4 NPT CONDUITCONNECTION. CANBE ROTATED 360˚.

1 NPT

8-1/4[209.55]

4-7/8[123.83]

3-1/4[82.55]

1-5/8[41.28]

SP. A BGR.

1.0 51⁄163⁄4

[129 mm] [19 mm]

0.6 513⁄16 1[148 mm] [25.4 mm]

MODELS

®

Switch Type123-153123-7000-153

SPDT MercurySPDT Snap

Model Number

Model Number Switch Type

102-WT-4810-C-60102-WT-7810-C-60

102-WT-7810HM-C-60

SPDT MercurySPDT Snap

SPDT Hermetically Sealed Snap

pg236 7/29/05 9:58 AM Page 1


Level

Adjustable deadband makes Model 500 ideal for control of level in large orsmall tanks. Mounts directly to threaded fitting on tank. (Flanged mounting avail-able on special order.) Stainless steel float operates hermetically sealed mercuryswitch or SPDT snap action switch. Available in a variety of materials to matchmost petrochemical and industrial applications.

SPECIFICATIONSService: Compatible liquids. Cast iron is not for usewith lethal or flammable substances either liquid orgaseous.Wetted Materials:

Body: Cast iron, cast steel, or 316 SS. Float and Trim: 316 SS.

Temperature Limit: 425°F (218°C).Pressure Limit: 400 psig (27.6 bar).Enclosure Rating: NEMA 4X. Optional generalpurpose or explosion-proof.Switch Type: SPDT snap switch or mercury switch.Optional DPDT or hermetically sealed snap switch.Electrical Rating: Snap Switch: 12A @ 120 VAC, 5A@ 240 VAC, 0.5A @ 125 VDC resistive, 0.25A @ 250VDC resistive. Mercury Switch: 4A @ 120 VAC/DC,2A @ 240 VAC/DC. Higher contact ratings availablefor the Mercury switch.Electrical Connections: Screw terminal.Conduit Connection: 3/4˝ female NPT.Process Connections: 2-1/2˝ male NPT. Optional 2-1/2˝ flange.Mounting Orientation: Vertical.Set Point Adjustment: At minimum deadbandsetting the set point is adjustable approximately ±1/2˝(12.7 mm).Weight: 35 lb (15.9 kg).Agency Approvals: UL.Deadband: Adjustable between 0.5˝ (12.7 mm) to 3˝(76.2 mm).Specific Gravity: 0.8 minimum. Optional 0.55minimum.Float and Rod Insertion Length: 6.5˝ (165.1 mm).Optional 12˝ (304.8 mm), 18˝ (457.2 mm), or 24˝ (609.6mm) rod length. Longer float rods give largeradjustable deadband.

Series500 Insertion Type Level Control

Adjustable Deadband, Weatherproof Enclosure3-7/8

[98.42]

3/4 NPTCONDUIT

CONNECTION

9-7/8[250.82]

5-1/2[139.70]

1-7/8[47.62]

3/8[9.52] 1/2 NPT

DRAIN PLUG

5-1/2[139.70]

2-1/2 NPT32°

16°

INSERTION

MODELS

®

SPECIFICATIONSService: Compatible liquids. Cast iron is not for use with lethal or flammablesubstances either liquid or gaseous. Wetted Materials: Body: Cast iron, cast steel, or 304 SS. Float: 304 SS.Torque Tube: Brass or 304 SS. Body Gasket: Carbon.Temperature Limit: Cast iron body: 425°F (218°C), cast steel or 304 SS body:500°F (260°C).Pressure Limit: Cast iron body: 300 psig (20.7 bar), cast steel or 304 SSbody: 400 psig (27.6 bar).Enclosure Rating: General purpose.Switch Type: SPDT mercury switch. Optional SPST or two stage.Electrical Rating: 10A @ 120 VAC/DC, 5A @ 240 VAC/DC.Electrical Connections: Screw terminal.Conduit Connection: 7/8˝ (22.23 mm) hole for 1/2˝ (12.7 mm) conduit.Process Connections: 1˝ female NPT. Four for side/side or top/bottommounting.Mounting Orientation: Vertical.Weight: 35 lb (15.9 kg).Agency Approvals: UL and CSA.Deadband: Approximately 1˝ (25.4 mm).Specific Gravity: 0.66 minimum.

Series75 Torque Tube Type Level Control

Direct Action, Mercury Contacts1 NPT PIPE

PLUG TYP 2 PLACES1 NPT

TYP 2 PLACESØ7/8 [22.23]CONDUIT

CONNECTION

4-1/4[107.95]

2-11/64[55.17]

6-3/4[171.45]

6[152.40]

12-1/4[311.15]

11-3/8[288.93]

3-1/4[82.55]

ADJUSTABLEFROM 5-1/8 [130.18]

TO 7 [177.80]

5-3/4[146.05]

STANDARD1-5/8 [41.28]

8-1/4[209.55]

FIXEDDEADBAND

1 [25.40]

1-5/8 [41.28]

MODELS

Torque Tube design eliminates O-rings and packing in Model 75 level con-trols. Float assembly removes easily from chamber for periodic inspection.“Flow Through” connections reduce piping requirements and installation time.

®

®

Switch Type500T-WT-7810-C.55-12-0500T-WT-7810-C1.55-12-0500T-WT-7810-C216.55-12-0500T-WT-4810-C.55-12-0500T-WT-4810-C1.55-12-0500T-WT-4810-C216.55-12-0

Snap ActionSnap ActionSnap Action

MercuryMercuryMercury

Body MaterialCast IronCast Steel

316 SSCast IronCast Steel

316 SS

Model Number

ModelNumber

75KM-A-481575KXM-A1-481575KXM-A2-481575KM-C-481575KXM-C1-481575KXM-C2-4815

Cast IronCast Steel304 SSCast IronCast Steel304 SS

Chamber Torque Tube

BrassBrassBrass304 SS304 SS304 SS

pg237 7/29/05 9:57 AM Page 1


Lev

el

Model 201 liquid level control is designed for long life and reliable operation in chemicalplants, refineries and industrial facilities. Stainless steel switching mechanism uses gravity re-turn action instead of springs to prolong life. Weatherproof enclosure is standard. Heavy duty,welded steel float chamber is suitable for 500 psi at 750°F.

SPECIFICATIONSService: Compatible liquids.Wetted Materials: Body: Carbon Steel. Optional316 SS. Float and Trim: 303 SS, 304 SS, 316 SS,and 430 SS. Options of 316 SS and 430 SS or all316 SS.Temperature Limit: Process: 750°F (399°C).Heat fins should be used for process temperaturesabove 500°F (260°C) with mercury switches,400°F (204°C) with snap switches, and 350°F(176.7°C) with hermetically sealed snap switches.Pressure Limit: 600 psig (41 bar) at 100°F(37.7°C), 500 psig (34 bar) at 750°F (399°C).Higher ratings available.Enclosure Rating: NEMA 4X. Optional generalpurpose or explosion-proof.Repeatability: ±1/4˝ (6.4 mm).Switch Type: SPDT snap switch, hermeticallysealed snap switch or mercury switch. OptionalDPDT or two stage.

Electrical Rating: Snap Switch: 12A @ 120 VAC,5A @ 240 VAC, 0.5A @ 125 VDC resistive, 0.25A@ 250 VDC resistive. Hermetically Sealed SnapSwitch: 5A @ 125 VAC, 5A @ 240 VAC, 5A @ 30VDC resistive. Mercury Switch: 4A @ 120VAC/DC, 2A @ 240 VAC/DC. Higher contactratings available for the Mercury switch.Electrical Connections: Screw terminal.Conduit Connection: 3/4˝ female NPT.Process Connections: 1˝ female NPT and 1˝socket weld hub. Optional flange connections.Mounting Orientation: Vertical.Set Point Adjustment: ±1˝ (25.4 mm).Weight: 33 lb (14.97 kg).Agency Approvals: UL and CSA.Specific Gravity: 0.6 minimum.

SP.GR *A B1.0 63/4" (171mm) 3⁄4" (19 mm)0.6 71⁄2" (191 mm) 1" (25.4 mm)

*A is adjustable ±1" (25.4 mm)

Series201

6-3/4[171.45]

Ø5-3/4[146.05]

4 [101.60]CLEARANCEFOR COVER

REMOVAL

3/4FEMALE

NPTELEC.CONN.

18-5/8[473.08]

3-1/4[82.55]

10-15/16[277.83]

3-3/4[95.25]

1 FEMALE NPTPROCESS

CONNECTIONTYP 2 PLACES

B

A

Side Mounted-Chamber Type Level ControlOperating Pressures to 500 PSIG, 34 bar, Hermetically Sealed Snap Switch Option

®

®

Heavy duty and low cost is the perfect description for the 391 Series level control. Stainlesssteel switching mechanism uses gravity return action instead of springs for long life. Weather-proof enclosure is standard. Welded steel chamber is good for 650 psig (45 bar) at 600°F (315°C).

ApplicationsOil refineries, chemical plants, power generating stations, pumping stations, heat transfer sys-tems, sanitary/waste water facilities, drip legs, hydraulic systems, boilers.

SPECIFICATIONSService: Compatible liquids.Wetted Materials: Body: Carbon Steel.Float and Trim: 303 SS, 304 SS, 316 SS, and430 SS.Temperature Limit: Process: 600°F (315.6°C).Heat fins should be used for processtemperatures above 500°F (260°C) with mercuryswitches, 400°F (204°C) with snap switches, and350°F (176.7°C) with hermetically sealed snapswitches.Pressure Limit: 800 psig (55 bar) at 100°F(37.7°C), 650 psig (45 bar) at 600°F (315.6°C).Higher ratings available.Enclosure Rating: NEMA 4X. Optional generalpurpose or explosion-proof.Switch Type: SPDT snap switch, hermeticallysealed snap switch or mercury switch. OptionalDPDT.

Electrical Rating: Snap Switch: 12A @ 120VAC, 5A @ 240 VAC, 0.5A @ 125 VDC resistive,0.25A @ 250 VDC resistive. Hermetically SealedSnap Switch: 5A @ 125 VAC, 5A @ 240 VAC, 5A@ 30 VDC resistive. Mercury Switch: 4A @ 120VAC/DC, 2A @ 240 VAC/DC. Higher contact rat-ings available for the Mercury switch.Electrical Connections: Screw terminal.Conduit Connection: 3/4˝ female NPT.Process Connections: 1˝ female NPT. Optional1˝ socket weld hub or flange connections.Mounting Orientation: Vertical.Weight: 10 lb (4.5 kg).Agency Approvals: UL.Specific Gravity: 0.8 minimum. Optional 0.7minimum.

SP.GR A B1.0 43/8" (111mm) 1" (25.4 mm)0.80 411⁄16" (191 mm) 13⁄16" (112.3 mm)

Series391 Side Mounted-Chamber Type Level Control

Compact, Low Cost, Hermetically Sealed Snap Switch Option

®


REMOVAL

6-3/4[171.45]

Ø5-3/4[146.05]

B

A

1 FEMALE NPTPROCESS

CONNECTIONTYP 2 PLACES

3-7/16[87.31]

3/4 FEMALENPT ELEC.

CONN.

14-11/16[373.06]

3-3/4[95.25]

6-1/2[165.10]

MODELS

MODELS

ModelNumber

201-WT-4810-C1-60201-WT-7810-C1-60201-WT-7810HM-C1-60

Switch TypeSPDT MercurySPDT SnapSPDT Hermetically Sealed Snap

ModelNumber

391-WT-4810-C1-80391-WT-7810-C1-80391-WT-7810HM-C1-80


pg238 7/29/05 9:56 AM Page 1


Level

One of our most versatile level controls, the model B-l90 can be used on all types of tank or sump level con-trol applications. Three porcelain displacers provide deadband adjustment. Unit can start a sump pump (forexample) when liquid reaches the high set point and turn the pump off when the level drops to the low setpoint. Unit works equally well in pressurized tanks. Two stage units also available.

SPECIFICATIONSService: Compatible liquids.Wetted Materials: Cable, Spring and Stops: 316SS. Optional Inconel spring. Displacers: Porcelain.Optional 304 SS, 316 SS, or karbate (graphite). Temperature Limits: 32 to 200°F (0 to 93.3°C).Higher ratings available.Pressure Limit: 125 psig (8.6 bar). Higher ratingsavailable.Enclosure Rating: NEMA 4X. Optional generalpurpose or explosion-proof.Switch Type: SPDT snap switch, hermeticallysealed snap switch, or mercury switch. OptionalDPDT or two stage.Electrical Rating: Snap Switch: 12A @ 120 VAC,5A @ 240 VAC, 0.5A @ 125 VDC resistive, 0.25A @250 VDC resistive. Hermetically Sealed SnapSwitch: 5A @ 120 VAC, 5A @ 240 VAC, 5A @ 30VDC resistive. Mercury Switch: 4A @ 120 VAC/DC,2A @ 240 VAC/DC. Higher contact ratings availablefor the Mercury switch.

Electrical Connections: Screw terminal.Conduit Connection: 3/4˝ female NPT.Process Connections: 4˝ 125 Cast Iron Flange.Other material, size, and rating flanges are available. Mounting Orientation: Vertical.Set Point Adjustment: Adjustable by movingdisplacers see dimension chart for minimum andmaximum values.Weight: 25 lb (11.34 kg).Agency Approvals: UL and CSA.Deadband: Adjustable by moving displacers see di-mension chart for minimum and maximum values.Specific Gravity: Standard is 1.0. Specify when or-dering by replacing 1.0 in model number with specif-ic gravity setting desired. Settable range is 0.5 to1.2.Cable Length: 10 ft (3 m) standard. Optional up to100 ft (30.5 m).

A C BTBMax. Min. Max. Min. Min. Max.

1161⁄2 "(2.66m)

61⁄2 "(165m)

114"(2.9m)

63⁄4 "(172mm)

21⁄2 "(64mm)

1221⁄4 "(3.1m)

SeriesB-190 Liquid Level Switches-Controls

Top Mounted Displacer Type, Adjustable Setpoints, Magnetic Operation, Optional Hermetically Sealed Snap Switch

6-3/4[171.45]

Ø5-3/4[146.05]

3/4 NPT

9-13/16[249.24]

3 [76.20]

A

B

C

TB

OPERATESON LEVELRISE

OPERATESON LEVELDROP

TOBOTTOM

®

®

Dimensions for 1.0 s.g. @ 100°F (38°C)MODELS

MODELS

Gap SwitchLiquid Level Measurement, 1000:1 Wet/Dry Ratio, 316 SS Wetted Parts

Series GS Gap Switch measures liquid levels at a single point andprovides a 10A relay output for high or low level alarm, overflow pre-vention, and pump protection. The Series GS uses ultrasonic wave prop-agation between the transducer gap to sense the presence or absenceof a liquid. Integral electronics make installation quick and easy. Unitscan be mounted in either a vertical or horizontal position with no addi-tional calibration required. Gap switch includes a 0.5 second delay andhigh level failsafe.

4[101.6]

3-3/4[95.25]

13/16[20.64]

2-3/4[69.45]

3/4 NPTTHREAD HUB

7/8[22.23]

1-1/2 [38.10]

1[25.40]

3/4 NPT

APPLICATIONSMonitor and control levels of water, chemicals, lubricants, acids,creams, lotions, beverages or paints in vessels, storage bins, tanks,sumps, etc.

SeriesGS

SPECIFICATIONSService: Compatible liquids(1000:1 wet/dry ratio).Wetted Material: 316 SS.Temperature Limits: Sensor:–40 to 200°F (–40 to 93°C),Electronics: –20 to 170°F (–4 to 77°C).Pressure Limits: 1000 psig (68.9bar).Enclosure Rating: Epoxy-coatedcast aluminum, NEMA 4 & 7.Repeatability: 2 mm (0.078˝) typical.Switch Type: DPDT.

Electrical Rating: 10A @ 120VAC resistive.Power Requirements: 115 VAC,50/60 Hz (230 VAC optional).Conduit Connection: 3/4˝ femaleNPT.Process Connection: 3/4˝ maleNPT.Mounting Orientation: Vertical orhorizontal.Delay [On]: 0.5 seconds.Immersion Depth: 1˝ (25.4 mm).Weight: 1 lb (453 g).Agency Approval: CE.

ModelNumber

B190-WT-4810-P-A-1.0-2B190-WT-7810-P-A-1.0-2B190-WT-7810HM-P-A-1.0-2


Model Number Immersion Depth Supply Voltage GS10001 1˝ (25.4 mm) 115 VAC

GS20001 1˝ (25.4 mm) 230 VAC

pg239 7/29/05 9:44 AM Page 1


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Model CLS1 Capacitance Level Switch provides reliable pointlevel measurement of solids, liquids and slurries in metallic or non-metallic tanks and vessels. Model CLS1 detects the presence or ab-sence of material in contact with the probe by sensing a change in thecapacitance. Electronics provide highly sensitive measurement detec-tion (requires less than a 1 picofarad shift from ambient). State of theart technology ignores material build-up on the vessel sidewall or alongthe probe assembly. One time calibration is simple with a single multi-turn potentiometer. Red LED on housing indicates sensor status. Unitfeatures an adjustable 1-30 second time delay and a 5 amp, SPDT fail-safe relay output. Model CLS1 can be mounted vertically or horizon-tally.

ModelCLS1 Capacitance Level Switch

For Solids, Liquids or Slurries, Fail-Safe Protection, <1 pF Sensitivity

APPLICATIONSHigh or low level detection in bins, silos, tanks, hoppers, chutes andother vessels where liquids, solids or slurries are stored.

6-3/16[157.15]

1-11/16[42.88]

7/8[22.23]

1-7/64[28.18]

1/2 FEMALENPT CONDUITCONNECTION 1 MALE NPS

PROCESSCONNECTION

1-13/16[46.05]

3-13/16[96.84]

21/32[16.67]

8-5/8[219.08]

SPECIFICATIONSService: Solids, liquids, or slur-ries.Wetted Material: CPVC.Temperature Limits: Probe:-40 to 240°F (-40 to 116°C),Electronics: -40 to 185°F (-40 to85°C).Enclosure Rating: NEMA 4X(IP56), PVC, dust tight, waterresistant.Switch Type: SPDT.Electrical Rating: 5A @ 250VAC.Power Requirements: 120VAC, 1.5VA.

Conduit Connection: 1/2˝female NPT.Process Connection: 1˝ maleNPS.Mounting Orientation: Verticalor horizontal.Sensitivity: Adjustable to <1 pF.Fail-Safe: Switch Selectable,high/Low.Time Delay: Adjustable 1 to 30seconds.Weight: 2.0 lb (0.91 kg).Agency Approvals: CE.

Monitor liquids and powder bulk solids with Series RFC RF Ca-pacitance Point Level Switch. Microprocessor based Series RFC pro-vides a 5 amp DPDT relay output for level detection. Heavy materialbuild-up on the probe does not effect operation.

Unit is designed with integral electronics and includes one-touch cali-bration. Series RFC features LED indication (located inside the hous-ing) of relay and probe status, adjustable time delay, high/low failsafe,and NEMA 4X (IP56) enclosure.

SeriesRFC RF Capacitance Level Switch

For Liquids or Powder Bulk Solids, One-Button Calibration, Integral Electronics

APPLICATIONSHigh or low level detection in bins, silos, tanks, hoppers, chutes and othervessels where liquids or powder bulk solids are stored.

13.4[340]

17.6[447]

3/4" NPT(M)

3.35[85]

3.30[83]

8.35[212]

.95[24]

Ø.375[10]

3/4" CONDUIT

4.13[105]

Ø4.63[118]

MODEL

SPECIFICATIONSService: Liquids and powder bulk solids.Wetted Materials: 316 SS probe with NorylTM guard.Temperature Limits: Electronics: -40 to 160°F (-40 to 71°C).Pressure Limits: 650 psig (44.8 bar).Enclosure: NEMA 4X (IP56), dust tight, water resistant.Switch Type: DPDT.Electrical Rating: 5A @ 115/230 VAC non-inductive.Power Requirements: 110/220VAC.Conduit Connector: 3/4˝ female NPT.Process Connector: 3/4˝ male NPT.Mounting Orientation: Vertical.Sensitivity: Factory set @ 5 pF, adjustable to < 2 pF.Fail-Safe: Selectable high/low.Time Delay: Adjustable 50 ms to 30 seconds.Weight: 5.0 lb (2.3 kg).

Model CLS1 Capacitance Level Switch

Model Number Guard MaterialRFC0420 NorylTM

pg240 7/29/05 9:44 AM Page 1


Level MODELS

Level ControlRadio Frequency Sensing for Liquids and Solids, Remote High/Low Control

Series RF Level Controls employ radio frequency technology to pre-cisely monitor the level of almost any liquid or solid. Probes are unaffectedby product build-up, even with problem materials like latex paint, whichcan quickly disable most mechanical controls. Each unit is quickly and eas-ily calibrated in the field for the unique dielectric constant characteristicsof the specific product being controlled. No moving parts means years ofdependable service. A complete system requires a sensing probe and sep-arate control box.


Connection: 316 SS.Probe: 316 SS or Teflon®.Insulator: Teflon®.

Temperature Limits: Probe: -40to 250°F (-40 to 121°C), ControlBox: -10 to 160°F (-23 to 71°C).Pressure Limit: 100 psig (6.89bar). Optional 1000 psi (68.9 bar).Enclosure Rating: Probe:Weatherproof and explosion-proof,NEMA 4, 7, 9. Class I, Div. 1 & 2,Groups C & D; Class II, Div. 1 & 2,Groups E, F, and G. Control Box:Weatherproof, NEMA 4X.Switch Type: DPDT form Ccontact.Electrical Rating: 2A @ 115 VAC.Power Requirements: 110/120VAC, 50/60 Hz; 220 VAC; 24 VDC.Current Consumption: 5 VA.Electrical Connections: Screwterminal.

Conduit Connection: Probe: 3/4˝female NPT. Control Box: Pg16, 21and 29 punch-outs.Process Connection: 3/4˝ maleNPT. Mounting Orientation: 316 SSprobe can only be verticallymounted. Teflon® covered probecan be vertically or horizontallymounted.Set Point Adjustment: Trips whenproduct touches the probe. Fieldtrim the probe to desired trip point.Weight: 12˝ Probe: 3.4 lb (1.54 kg).Control Box: 1.8 lb (0.82 kg).Time Delay: Selectable to: Off, 0to 30 seconds up to 15 seconds to2 hours.Options: Probes up to 25 ft (7.62m), 7/8˝ diameter probe formaterials with a dielectric constantbelow 20, 1000 psi (68.9 bar)pressure rating.

SeriesRF

SPECIFICATIONSElectrodes: 1/8 ˝ dia, 24˝ (609.6 mm) length, standard. Wetted Materials: 316 SS, polypropylene. Mounting, Sensor Head: 1˝ male NPT. Pressure Limits: 30 psig (2.06 bar). Temperature Limits: 212°F (100°C).Probe Enclosure: NEMA 6 (IP67). Maximum Probe Length: 72˝ (1.8 m) with optional extensions.Connecting Cable, Probe to Controller: 10 ft (3.0 m).Sensing Voltage: 12 VAC. Power Supply: 120 VAC 50/60 Hz.Output: SPDT, 5 A @ 240 VAC.Mounting, Controller: Standard octal socket or 35 mm DIN rail.Weight, Probe Assembly: 1.5 lbs (0.68 kg).Weight, Controller: 1.0 lb (0.45 kg).

ModelDPL110 Dual Point Level Switch

Tank High/Low Control, Conductivity Technology, Up to 72” Probes

Maintain liquid level high and low limits with the ModelDPL Dual Point Level Switch. Units can be used for single ordual point level control in semi-solid liquids, industrial slurriesor heavy-bodied liquids like wastewater. Standard 24 inch elec-trodes can be cut by the end-user to a shorter length or length-ened by adding up to two 24 inch extensions (sold separately)to reach the maximum recommended length of 72 inches. ModelDPL contains no moving parts to get stuck or wear out. Con-troller features adjustable sensitivity and DIN rail-mountablesocket mount.

27.1[687]

24.00[610]

1" MALE NPT

0.13[3.2]

3.11[79]

2.385[60.58]

Ø2.26[57]

1.40[35]

3.73[95]

2.81[71]

2.25[57]

1.75[44]

®

Model No.

RF101RF102RF105RF301

Description316 SS probe, 12" length x 1⁄4" dia.316 SS probe, 24" length x 1⁄4" dia.316 SS probe, 60" length, 1⁄4" dia.Teflon® coated probe, 12" length x 1⁄4" dia.

RFC1RFC2

Single probe controlDual probe control

SingleProbe

Control Box

Note - Order two single probes for dual probe configuration.

A-630, 4"x3⁄4" NPT, 125 lb. Cast iron flange for quick,convenient mounting of standard RF probes.

Model DPL110 Dual Point Level Switch

ACCESSORIESModel DPL5 Electrode Extensions includes two 249 (610 mm)electrode extensions and mounting hardware

pg241 7/29/05 9:43 AM Page 1


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SeriesLLC Conductivity Controller

Single Point or Differential Level Service, Compact Size, Up to 6 ft. (1.82 m) Probes

®

Control valves, pumps and alarms with the versatileSeries LLC Conductivity Level Controller. Select therequired number of probes for single or dual point leveldetection. Choose probe lengths in 1-foot increments (upto six feet) to adapt the LLC to your specific applicationsrequirements. The LLC features rugged 1/4-inch (6.3 mm) diameter, stainless steel probes, LED monitor-ing, surge protection, low voltage sensor and differentmounting options.

To build your level switch:Controller:

1. Determine your supply voltage. Select

between 120 and 240 VAC.

2. Determine the required sensitivity. Select

between 10 K Ω and 26 K Ω.

3. Determine the socket style. Select between

8-pin octal and DIN mount.

Probes:4. Determine the required number of probes. Specify

quantity of Threaded Mounting Couplings, model

LLC-82. (A coupling is required for each probe.)

5. Select probe lengths. Specify model numbers

for probes.

SPECIFICATIONSService: Electrically conductive fluids.Wetted Materials: 316 SS, Teflon®.Temperature Limits: Controller: -40 to 150°F (-40 to65°C); Probes: 406°F (207°C).Pressure Limits: Probes: 400 psig (27 bar).Switch Type: SPDT, N.O. or N.C.Electrical Rating: 10A resistive, 1/3 hp, 120/240 VAC.Power Requirements: 120 VAC or 140 VAC.Process Connection: 3/8˝ male NPT.Electrodes: 1/4˝ (6.3 mm) diameter, 316 SS.Maximum Probe Length: 72˝ (1.82 m).Controller Sensitivity: 10 KΩ or 26KΩ.Mounting: Controller: 8 pin octal or DIN mount; Probes:3/8˝ male NPT.Weight: Controller: 6 oz (170 g).

ControllersModel Supply Voltage Sensitivity Socket Style

LLC-118 120 VAC 10K Ω 8-Pin Octal

LLC-128 120 VAC 26K Ω 8-PIN Octal

LLC-115 120 VAC 10K Ω DIN Mount






ProbesModel Length feet(m)LLC-31 1 (.3)LLC-32 2 (.6)LLC-33 3 (.9)LLC-34 4 (1.2)LLC-35 5 (1.5)LLC-36 6 (1.8)

Threaded Mounting CouplingsModel LLC-82

pg242 7/29/05 9:42 AM Page 1


Level

ModelDBLM

The Mini-Bin provides reliable level sensing for dry bulk solidswhere mounting space is limited. This compact, side mount control reportshigh, intermediate, and low level conditions, eliminating overflows, chok-ing, clogs or empty vessels. Model DBLM Mini-Bin operates by using a 1rpm synchronous motor to rotate a four vane, plastic paddle. When mate-rial surrounds paddle and impedes rotation, the motor is de-energized andtriggers a SPDT snap switch. Mount the Mini-Bin with optional 11⁄4" to 3⁄4"reducer to replace standard size units.

Mini-Bin Dry Bulk Level MonitorCompact, 4-Vane Paddle

MODELS

SPECIFICATIONSService: Dry bulk solids.Wetted Materials: Polycarbonate paddle, SS shaft, Teflon® washer.Temperature Limits: -4 to 140°F (-20 to 60°C).Enclosure Rating: Polycarbonate, NEMA 1.Switch Type: SPDT snap switch.Electrical Rating: 3A @ 250 VAC. Power Requirements: 110 VAC, 50/60 Hz, 220 VAC optional, consult factory. Power Consumption: 1.5 Watts.Electrical Connections 18 AWG, 12˝ leads wrapped in conduit.Process Connection: 3/4˝ male NPT, optional flange and 1-1/4˝ to 3/4˝ reducer.Mounting Orientation: Side mount. Weight: 0.77 Ib (350 g).Agency Approvals: CE.

Suggested Specifications Miniature dry bulk level control shall be vane operated to actuate a SPDT snap actionswitch. Power consumption shall be 1.5 watts. The motor shall de-energize when rota-tion is impeded. The housing shall be plastic, suitable for NEMA 1 service. Switchshall be Proximity Model No. DBLM 3040.

NEW! Technica l Reference Books Pumps & Hydraulics

InstrumentationReference Book

Plant Engineer’sHandbook

• Learn to install and service pumps for nearly any applica-tion

• Service and maintain individ-ual pumping devices that use smaller motors

• ISBN: 0764571168, Pages: 556, Paperback

Sixth EditionBy Rex Miller& MarkRichard Miller,2004

• Produced in association with Plant Engineering Magazine and created by leading authors and editor.

• International perspective withdual units and regulations.

• ISBN: 0750673281, Pages: 2400, Hardback

Edited by R. KeithMobley, 2001

• Great reference for anyone in the process, control and instrumentation fields where measurements are essential.

• ISBN: 0750671238, Pages: 1062, Hardback

Third EditionEdited by Walt Boyes,2002

Guide to the 2005National Electric Code

• Understand the terms and rules for installation set forth in the NEC

• Learn about the significant changes in bonding and grounding requirements

• ISBN: 0764578022, Pages: 816, Paperback

By PaulRosenberg,2004

Model Number

DBLM3040DBLM3140

Power Supply

110 VAC220 VAC

F1, 8"x 11⁄4" NPT flexible carbon steel mounting flangeA-335, 11⁄4" to 3⁄4" reducer

Order Number: BK-0009




pg243 7/29/05 9:42 AM Page 1


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Diaphragm Selection: A wide variety of diaphragms are available tomatch product bulk density, flowability, abrasiveness and temperaturerequirements while providing maximum sensitivity. The best choice forvessels subject to pressure or vacuum is “breathable” fabric (P Se-ries), requiring no venting. Non-porous elastomer (G Series) type di-aphragms are the best choice for more abrasive product and broadertemperature range applications. Venting is always required with the Gseries and if used in pressurized vessels, venting to the tank atmos-phere is required to allow pressure equalization. A slide rule “Di-aphragm Selector” is available from the factory to help you choose thediaphragm best suited to your application.

Suspension mountingU.S. Patent #3,368,173, 3,349,203 Canadian Patent #801,168; 821,621

Flange mountingU.S. Patent #3,368,173, 3,349,203 Canadian Patent #801,168; 821,621

Mounting Selection: A choice of either suspension or flange mount-ing is available to match your application. Flange mounting is the bestchoice for control of low or intermediate level in vessels containinggranular product that does not “bridge”, “rathole”, or otherwise buildup on vessel walls. Choose suspension mounting for high level in ves-sels and for better operation with “bridging” product. See next pagefor more information on suspension and flange mounting kits. Notethat the mounting configuration is represented by the letter “S” forsuspension or “F” for flange which is the second digit in the part num-ber on the next page.

A unique, patented Magnetic Linkage isolates the electrical com-partment from controlled product, reducing maintenance and improv-ing sensitivity. The sealed switch compartment and sealed leads yieldthe utmost in reliable operation. A wide selection of diaphragms andswitches are available with choices of flange or suspension mounting tofit your specific application. The dry level Ultra-Mag™ is extremely sen-sitive and very economical. The magnetic linkage makes this simple ex-plosion-proof diaphragm switch the most rugged and reliable levelcontrol for a variety of products (see cut-away above).

SPECIFICATIONSService: Compatible powder or bulk solids.Wetted Materials: Mounting Flange: See model chart. Aluminum or 304 SS.Diaphragm: See model chart. Urethane, Buna-N, Teflon®, SiliconeRubber, Polyester, Viton®, White Buna-N (food grade), or EPDM.Temperature Limits: Depends on diaphragm material, see modelchart. Standard switch: -40 to 185°F (-40 to 85°C), High tempera-ture switch: -40 to 350°F (-40 to176°C).Pressure Limit: 60 psig (4.14 bar).Enclosure Rating: General purpose or weatherproof andexplosion-proof. See model chart.Switch Type: See model chart.Electrical Rating: See model chart.Electrical Connections: 18 gage solid core, 600 volt TEW105°C, style 1015. Epoxy sealed at conduit entrance. 12˝ (304.8mm) long.Conduit Connection: 1/2˝ female NPT.Process Connection: For flanged models standard is 8-3/8˝(212.725 mm) diameter bolt hole circle.Mounting Orientation: Flange mount or suspend depending onmodel.Set Point Adjustment: Internal screw. Weight: 7 lb (3.18 kg).Options: Suspension kits and flange adapter rings.Agency Approvals: UL and CSA.

Flange Adapter Ring

DrivingMagnet

DrivenMagnet

SealedJunction Box

Epoxy Seal

SealedSwitch Cavity

®

®

Explosion-Proof Ultra Mag™ Level SwitchesFor Powder & Bulk Solids

SUSPENSION HUB – 1 NPT

DIAPHRAGMDIAMETER 5-7/8

7-1/2

3-1/8

CONDUIT ENTRANCE1/2 NPT

(6) 5/16 DIA. HOLESON 8-3/8 B.C.

DIAPHRAGMDIAMETER 5-7/8 7-1/4

9-1/8

3/8

3-1/8

pg244 7/29/05 9:13 AM Page 1


Level

SUFFIX-SPECIAL CONTROLS-A1 = D/P with Diaphragm cover plate-A2 = Wood Chip Control (with “6G” diaphragm only)-A3 = High sensitivity actuator (for very light product)

Suspension Mounting is normally used forhigh level monitoring in vessels. For productover 20 pounds/cu. ft., the level switch (di-aphragm face) should be located about 1⁄3 of thedistance from the vessel wall to the point ofentry of the product. For product less than 20pounds/cu. ft., the unit should be located clos-er to the point of entry of the product, about 1⁄2the distance from the vessel wall to the pointof entry. Pressure required to depress the diaphragm and trip theswitch is in the range of 5–15 oz in the horizontal direction (perpen-dicular to the diaphragm). Suspension mounting provides the easiestvertical adjustment capability, greatest sensitivity and best mainte-nance conditions.

Suspension Assembly Kits: Pre-assembled kits are available fromthe factory, or you can build your own kits using standard pipe fittingsshown in our Proximity Bill of Materials (Form No. 101). Pipes and fit-tings are normally galvanized steel, but aluminum and stainless steelpipes and fittings are available. Units pictured on the previous pageare secured to a steel cover plate that rests on a rectangular steelflange welded into the top of the vessel. Aluminum and stainless cov-erplates and flanges are also available. Standard 48" long x 1" pipe pro-vides working depth (WD) up to 48". Longer pipe (to provide greaterWD) is available. GS Series switches have upper (L1 = 28" standard)and lower (L2 = 20" standard) 1" pipes, with a tee (for stilling pot) in be-tween. A stilling pot is required to equalize pressure and keep dirtfrom building up behind the diaphragm. PS series require a 1⁄2" conduitin 1" suspension pipe for explosion-proof applications. The 1⁄2" conduit(56" standard length) is a standard part of the GS series assembly.

Suggested Suggested SuggestedProduct Diaphragm* Product Diaphragm* Product Diaphragm*

Abrasive............................3D Gravel ...............................3D Sand, Foundry Prepared .......5AAggregate .........................3D Iron Ore, Crushed .............3D Sand, Shake Out ..................3DAlumina.............................3D Kaolin Clay........................3D Sawdust, Dry ........................6GAsh, Dry............................3D Lime, Hydrated .................5A Sea Coal ...............................3DBaking Powder .................7B Lime, Stone ......................3D Sesame Seed ......................3DBaking Soda .....................7B Oats..................................4B Shale, Crushed .....................3DBarite ................................3D Peanuts in Shell ................7A Silica, Flour ..........................3DBark, Ground ...................6G Peanuts, Shelled...............3D Sludge, Sewage Dried ..........1ABarley, Ground or Meal ......17 Perlite ...............................7A Sludge, Sewage, Ground ......1ABarley, Whole ....................4B Phosphate, Rock ..............3D Soda Ash..............................3DBeans, Edible,...................4B Polyethylene Powder.........7A Soybeans, Cracked ..............3DBentonite ..........................3D Polyethylene Resin ............17 Soybean, Flake .....................7ABond, Foundry ..................17 Polypropylene Fluff ............7A Soybean, Flour, .....................7ACarbon Black ....................7A Polypropylene Powder ......7A Soybean Meal .......................3DCement, Klinker ................8A Polypropylene Resin..........17 Soybean, Whole....................3DCement, Portland..............4B Polystyrene Beads ............3D Sugar Beets, Whole ..............6HChips, Hogged Fuel ..........6G Pot Ash.............................3D Sugar Refined .......................7BCoal ..................................3D Powdered Metal ...............3D Sunflower Seed.....................7ACompost...........................5A Powdered Ore ..................3D Taconite Pellets .....................3DCore Sand, Foundry..........3D PVC Powder .....................7A Talcum Powder .....................3DCorn, Shelled ....................8A PVC Resin.........................17 Walnut Shells, Crushed .........3DDiatomaceous Earth..........7A Rice ..................................17 Wheat ...................................8ADrill Mud ...........................3D Rye...................................3D Wheat, Wet ...........................5AFlour .................................7B Salt ...................................3D Wood, Chips.........................6GFly Ash..............................3D Sand, Dry .........................3D Wood, Dust ..........................6GGlass Batch ......................3D Sand, Dry Silica ................3D

*Diaphragm codes become 4th and 5th characters in model number.

Proximity Ultra Mag™Level SwitchComplete Model Chart Consult factory for pricing on UltraMag™ switches

Note: The “EX” prefix must he added to the 6-digit model number for “explosion-proof standard”. Generalpurpose units do not require the “EX” or other prefix. See the “Complete Model Chart” on this page.

Note: OD = Outside Diameter

PREFIX - CertificationE X = Explosion-proof (UL & CSA) Class I, Div I & II, Groups C & D; Class II, Div I & II, Groups E, F, & G.

X = Explosion-proof (CSA) Class II, Div I & II, Groups F & G.

E X G S D 3 D A = EXAMPLE MODEL NUMBER*A

1ST DIGIT-Basic Magnetic Pressure Sensing SeriesG = Elastomeric Diaphragm-Venting required*. (Diaphragms 1A - 8A) P = Breathable Fabric Diaphragm-No venting required. (Diaphragms 16 & 17 only)

2ND DIGIT-MOUNTING (Top = Suspension/Side=Flanged)S = Suspended (G series require suspension vent fittings)* Subtract 10 lbs./cu. ft.-greater sensitivity.F = Flanged, Aluminum standardT = Flanged, 304 SS

3RD DIGIT-HOUSING MATERIALD = AluminumA = Aluminum, AnodizedE = Aluminum, Epoxy Coated

4TH & 5TH DIGITS-DIAPHRAGM MATERIAL (TEMPERATURE) (BULK DENSITY)1 A = Viton®, black, .025˝ thick, (25 to 300°F), (>30 lbs/cu ft)2 A = Neoprene, black, .025˝ thick, (-30 to 220°F), (>30 lbs/cu ft)3 D = Urethane, .031" thick (10 to 150°F) (>30 lbs./cu.ft)3 E = Urethane, orange, .062˝ thick, (10 to 150°F), (>90 lbs/cu ft)3 F = Urethane, “3D” elastomer w/bumper for removable overlays, orange,

(10 to 150°F), (>90 lbs/cu ft)4 B = Buna-N, black, .020" thick (-20 to 212°F) (20 to 90 lbs./cu.ft.)5 A = Teflon®/Glass on Sil Rubber, .024" thick (-40 to 350°F) (>35 lbs./cu. ft)6 D = Silicone Rubber, gray, .062˝ thick, (-40 to 350°F), 15 to 30 lbs/cu ft)6 E = Silicone Rubber on Glass, red, .032˝ thick, (-40 to 350°F), (>90 lbs/cu ft)6 G = “6C” w/Urethane overlay, (-40 to 350°F) (wood chips diaphragm with “A2”)6 H = “6C” w/bumper for removable overlays 901-120, -132, -134, gray, (-40 to 350°F),

(>90 lbs/cu ft)7 A = Silcone Rubber on Glass (White), .015" thick (-40 to 350°F) (5 to 40 lbs./cu. ft.)7 B = Buna-N (Food Applications-white), .060" thick, (-20 to 212°F) (30 to 90 lbs./cu. ft.)8 A = EPDM, black, .036" thick, (-40 to 275°F) (40 to 90 lbs./cu. ft.)1 6 = Polyester Filter Fabric, white, 150 micron permeability (-30 to 275°F)

(30 to 90 lbs./cu. ft.)1 7 = Polyester Nitex, white, 15 micron permeability (-30 to 275°F)

(30 to 90 lbs./cu. ft.)

6TH DIGIT-SWITCH TYPEA = Standard, SPDT, 15A @ 125, 250 VACT = High Temp, SPDT, 5A @ 125, 250 VAC; 24 VDC(**)V = High vibration, SPDT, 15A @ 125, 250 VACG = Gold contacts, SPDT, 1A @ 125 VAC, 1⁄2 A @ 24 VDC

GGGGPPGGGGGG

GGGP

P

Part# Tank OD126-009 15"126-010 30"126-011 36"126-012 42"126-013 48"126-014 60"126-015 72"

Part# Tank OD126-016 84"126-017 96"126-018 10'126-019 12'126-020 14'126-021 24'

* GS - G series suspended controls require suspension vent fittings.(**)Non-UL/CSA listed

Suspension Assembly Kits

Diaphragm Selection Guide

Aluminum Flange Adapter Rings

“P” and “G” Series Suspension Assembly KitsPart# Description

901-409 “P” Series Suspension Assembly includes 1⁄2"pipe (56" Std length), 1" pipe (48"Std length), 1" pipe coupling, 11⁄2" NPT strain relief on 1" pipe. Galvanized mild steel pipe, explosion proof, standard.

901-412 “G” Series Suspension Assembly includes 1⁄2"pipe (56" Std length), watertight strain relief and 1" coupling, upper 1" pipe (28" Std length), lower 1" pipe(20" Std length), strain relief with 11⁄2" NPT, 1" X 1" X 1" Tee,1" Street Ell and 1" pipe-4" long Stilling Pot. Galvanized steel pipe, explosion proof, standard.

Specials include aluminum or stainless steel assemblies. Flangeport and cover assemblies are sold separately. CONSULT FACTORYfor details.

GSD3DAGFD3DAPSD16APFD16A

pg245 7/29/05 9:40 AM Page 1


Lev

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Paddle Level SwitchEconomical Rotary Paddle Level Control, Top or Side Mounting for Dry Bulk Materials

SeriesPLS

Incorporated in the design of the PLS is a magnetic drive that istime proven by decades of use in our Mark Series valve position indi-cator product line. A 1 rpm synchronous motor rotates the paddle uti-lizing a magnetic drive. As product builds up the paddle is impededfrom moving and the resulting motor torque activates the outputswitches and stops the motor. A spring mechanism reactivates themotor and returns the switches to normal state when the product nolonger impedes the paddle rotation.

Standard construction is weatherproof with explosion-proof optional,and the unit can be side or top mounted. The PLS is designed with theindustry standard 1-1/4˝ male NPT connection and mounting flanges.

FEATURES• Magnetic drive that isolates and completely seals the control head from

the process and environment preventing material or dust from enteringthe control head.

• Motor shuts-off when paddle stalls increasing motor life, preventingmotor burnout, and decreasing power usage.

• Slip clutch design enabled by the magnetic drive that prevents damageto motor and drive mechanism from sudden or excessive loading on thepaddle.

• Status indication light on weatherproof models. • Screw cover on the enclosure for easy access with no worries about los-

ing bolts or screws. • Modular design to allow field installation of any paddle, flanges, shaft

extensions, or shaft guards.

SPECIFICATIONSService: Dry powder or bulk materials compatible with wetted materials.Sensitivity: Minimum material density of 5 lb/ft3 (80 kg/m3), maxi-mum of 200 lb/ft3 (3200 kg/m3).Wetted Materials:

Paddles: 316 SS. Exposed Shaft: 316 SS. Shaft Seal: PTFE.Mounting Boss: Aluminum. Flexible Coupling: 316 SS.Mounting Flanges: Carbon Steel or 316 SS.Shaft Extension and Shaft Guards: Galvanized Steel or 316 SS

Temperature Limits:Standard Construction: Process: -40 to 300ºF (-40 to 148.9ºC), Control Head: -40 to 200ºF (-40 to 93.3ºC).High Temperature Option: Process: -40 to 500ºF (-40 to 260ºC), Control Head: -40 to 185ºF (-40 to 85ºC).

Pressure Limit: 30 psig (2.07 bar) maximum for .5 micron orlarger material.

Power Requirement: Select by part number: 110-120 VAC, 230VAC, 24 VAC, 48 VAC, 12 VDC, or 24 VDC.Power Consumption: Weatherproof models: 5 watts, Explosion-proof models: 3 watts.Enclosure: Aluminum, powder coated.Enclosure Rating: Weatherproof (W, WH construction): NEMA 4X,Explosion- proof (E, EH construction): NEMA 4X and rated forClass I, Div. 1 & 2, Groups C & D, Div. 1 & 2, Groups E, F, & G.Switch Type: SPDT or optional DPDT snap switch.Electrical Rating: 15A @ 120/230 VAC, 5A @ 24 VDC. Electric Connections: Screw terminals.Conduit Connection: 3/4˝ female NPT.Process Connection: 1-1/4˝ male NPT. Optional flange. Weight: Control head only: 4 lb (1.81 kg).Indication Light: Red LED that activates when switch is made orwhen switch is not made with RL option (Not available onExplosion-proof models).Options: Time delay relay, high temperature construction, topmount, shaft extensions, shaft shields, flexible couplings, otherpower voltages, reversed light.Agency Approvals: UL approved as an auxiliary device or as anauxiliary device for hazardous locations.

SIDE MOUNT

3/4" CONDUITCONNECTION

4-31/32[126.19]

4-11/32[110.31]

6-3/8[162.05] 8-33/64

[216.26] 10-5/16[261.92]

4-1/2[113.69]

CLEARANCE FORCOVER REMOVAL

PDL-4. Minimum bulkdensity of 70 lb/ft3 (1122kg/m3). Fits through 1-1/4˝ coupling eliminatingthe need for a mountingflange.

PDL-2. Minimum bulkdensity of 30 lb/ft3 (481kg/m3).

PDL-1. Minimum bulkdensity of 5 lb/ft3 (80kg/m3).

PDL-3. Minimum bulkdensity of 30 lb/ft3 (481kg/m3). Fits through a 1-1/4˝ coupling eliminatingthe need for a mountingflange.

MODELS

Contact the factory for pricing of shaft extensions, protective shields, and other options. More detailed information available in our “Dust Collection &Pneumatic Conveying” Catalog.

CONTROLASSEMBLIESPLS-W-S-1-0-0-0-0

PLS-W-S-1-3-0-0-0

PLS-W-S-1-2-CSH-0-0

DESCRIPTION

Weather construction, SPDT switch, 120 VACpower supply. Order paddles and flangesseparately.Weatherproof construction, SPDT switch, 120VAC power supply, includes PDL-3 paddle.Weatherproof construction, SPDT switch, 120VAC power supply, includes PDL-1 paddle andFLG-CSH flange.

PADDLES(See top of

page)PDL-1PDL-2PDL-3PDL-4

FLANGES

FLG-CSHFLG-CSFFLG-SSHFLG-SSF

DESCRIPTION

Carbon Steel with Half Coupling.Carbon Steel with Full Coupling.316 SS with Half Coupling.316 SS with Full Coupling.

pg246 7/29/05 9:35 AM Page 1


Level

A unique patented Magnetic Linkage in the S-D™ Liquid Level Switchisolates the electrical compartment, containing one or two switches, fromcontrolled product. This reduces maintenance and improves sensitivity.The sealed switch compartment and sealed leads yield highly reliable op-eration. A variety of switch types, options, mounting choices and thumb-wheel adjustable ranges is available to fit your specific application. TheS-D™ is very sensitive and economical. The force required to depress the di-aphragm and trip the switch(es) is in inches of water column. The simpledesign has been proven rugged and reliable providing long life in the most se-vere applications.

SPECIFICATIONSService: Compatible liquids.Wetted Materials:Mounting Flange: See model chart.Aluminum, carbon steel, PVC, or316 SS available.Diaphragm: See model chart.Viton®, Neoprene, Urethane, Buna-N, Teflon®, Silicone rubber, or foodgrade available.Temperature Limits: 180°F(82.2°C) suspended in liquid, 220°F(104.4°C) exterior tank mounted.Pressure Limit: 75 psig (5.2 bar)Enclosure Rating: Weatherproofand submersible.Repeatability: ±1 to 3% of fullrange. Contact factory for specificvalues.Switch Type: SPDT snap switch orSPDT gold contact snap switch.One to three switches available. Electrical Rating: Snap Switch:15A @ 125/250/480 VAC. GoldContact Snap Switch: 1A @ 24VDC/125 VAC.

Electrical Connections: 18 gagesolid core, 600 volt TEW 105°C,style 1015. Epoxy sealed atconduit entrance. 36˝ (914.4 mm)long.Conduit Connection: 1˝ NPTfemale.Process Connection: See modelchart. 2˝ flange, 3˝ flange, 4˝ flange,2˝ NPT, or suspended available. Mounting Orientation: Flangemount, screw in, or suspenddepending on model.Set Point Adjustment: Internalscrew. Adjustable anywhere withinthe pressure range.Weight: 6 lb (2.72 kg).Ranges: 6 to 42˝ w.c. (1.49 to10.45 kPa), 12 to 120˝ w.c. (2.99 to29.9 kPa), and 100 to 200˝ w.c.(24.9 to 49.8 kPa).Deadband: Approximately 20% ofrange. Contact factory for specificvalues.Options: Suspension kits and diptube kits.

SPECIFICATIONSService: Compatible liquids.Wetted Materials:Mounting Flange: See model chart.Aluminum, carbon steel, PVC, or316 SS available.Diaphragm: See model chart.Viton®, Neoprene, Urethane, BunaN, Teflon®, Silicone rubber, or foodgrade available.Temperature Limits: 180°F(82.2°C) suspended in liquid, 220°F(104.4°C) exterior tank mounted.Pressure Limit: 75 psig (5.2 bar).Enclosure Rating: Weatherproofand submersible.Repeatability: ±1 to 3% of fullrange. Contact factory for specificvalues.Switch Type: SPDT snap switch orSPDT gold contact snap switch.One or two switches available.Electrical Rating: Snap Switch:15A @ 125/250/480 VAC. GoldContact Snap Switch: 1A @ 24VDC/125 VAC.

Electrical Connections: 18 gagesolid core, 600 volt TEW 105°C,style 1015. Epoxy sealed atconduit entrance. 36˝ (914.4 mm)long.Conduit Connection: 1/2˝ femaleNPT.Process Connection: See modelchart. 2˝ flange, 3˝ flange, 4˝ flange,1/2˝ to 3˝ NPT, or suspendedavailable.Mounting Orientation: Flangemount, screw in, or suspenddepending on model.Set Point Adjustment: Internalscrew. Adjustable anywhere withinthe pressure range.Weight: 6 lb (2.72 kg).Ranges: 6 to 12˝ w.c. (1.49 to 2.99kPa), 11 to 24˝ w.c. (2.74 to 5.97kPa), and 22 to 48˝ w.c. (5.47 to11.9 kPa).Deadband: Approximately 20% ofrange. Contact factory for specificvalues. Optional wide deadband ofapproximately 50%. Options: Suspension kits and diptube kits.

Liquid Level SwitchesFor Sludge, Slurry, or Liquids

Sliquid™ Liquid Level Switch This top-of-the line Sliquid™ Level Switch has the unique, patented Mag-netic Linkage that completely isolates the electrical compartment, con-taining 1, 2 or 3 switches, from controlled product. Maintenance is thusreduced and sensitivity improved. Sealed switch compartment and sealedleads yield the utmost in reliable operation. A variety of switches, mount-ing choices and the broadest range of adjustability is available with the Sliq-uid™ Level Switch. The force required to depress the diaphragm and tripthe switch(es) is in inches of water column. The increased adjustment ca-pability is provided by a different spring and screw design versus the S-D™

thumbwheel design.

MODELS

MODELS

S-D™ Liquid Level Switch

S-D™ with 1 standard switch, 4˝ aluminum flange (6-12˝ range), neoprene diaphragm, anodized aluminumhousing

S-D™ with 2 standard switches, 4˝ aluminum flange(6-12˝ & 6-12˝ ranges), neoprene diaphragm,anodized aluminum housing

S-D™ with 2 standard switches, 3˝ carbon steelflange adapter (6-12˝ & 22-48˝ ranges), neoprenediaphragm, anodized aluminum housing

S-D™ with 2 gold switches, 4˝ aluminum flange (6-12˝& 6-12˝ ranges), neoprene diaphragm, anodized alu-minum housing

A1FP20

A2FS20

A2IV20

A5FS20

Model Description

Sliquid™ with 1 standard switch, 4˝ aluminum flange (6-42˝ range), neoprene diaphragm, anodized aluminumhousing

Sliquid™ with 2 standard switches, 4˝ aluminum flange(6-42˝ & 6-42˝ ranges), neoprene diaphragm, anodizedaluminum housing

Sliquid™ with 2 standard switches, 4˝ aluminum flange(6-42˝ & 12-120˝ ranges), neoprene diaphragm, anodizedaluminum housing

Sliquid™ with 2 standard switches, 4˝ 316SS flange (6-42˝ & 12-120” ranges), Viton® diaphragm, Whiteepoxy on anodized aluminum housing

L1FK20

L2FA20

L2FB20

L2VB11

Model Description

pg247 7/29/05 9:36 AM Page 1


Lev

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Continuous Level TransmitterCustomize To Fit Application, 316 SS or Buna-N Floats

SeriesCLT

Continuous Output Level Transmitters provide up to the minutetank level monitoring. Customize level transmitters to meet applicationrequirements. Transmitters can be configured for 4 to 20 mA or pro-portional voltage output, stainless steel or Buna-N floats, and lengthsup to 72˝ (183 cm).

BINCHES

OFINDICATION

C

LOWESTLEVEL

HIGHESTLEVEL

2˝ NPT

Junction Box(Current Output

Only)4-9/16˝[115.9]

1 1/4[31.8]DIA.TYP.

1-5/16˝[33.3]TYP.

5/16˝[7.9]

1-7/8˝[47.6]

DIA. TYP.

5/16˝[8]

1-13/16˝[46.0]TYP.

2-1/16˝[52.4]

DIA. TYP.

2-3/4˝[69.8]TYP.

5/16˝ [8]

SPECIFICATIONSService: Compatible liquids.Resolution: 1/4˝.Temperature Limits: Buna-N floats: 180°F (82°C) in water, -40 to 230°F (-40 to 110°C) in oil; SS stem: -40 to 230°F (-40 to 110°C).Pressure Limits: Buna-N floats: 150 psig (10 bar); SS floats: 300 psig(21 bar).Power Requirements: Proportional voltage output models: 10 to 30 VDC; 4-20 mA output models: 10 to 40 VDC.Loop Resistance: 1.4 kN maximum.Electrical Connections: Proportional voltage output: 24˝ (61 cm) freeleads #22 AWG, PTFE jacketed; 4-20 mA output: Junction box.Enclosure Rating: 4-20 mA models, NEMA 4 junction box.Mounting Orientation: Vertical ±20°.

MOUNTING DIMENSIONS

1/2 NPT

2 NPT

1-1/4 SQ[31.75]

1/2 NPT

1[25.40]

1/2 NPT

Ø7-1/2[190.5]

6 HOLES Ø 3/4 [19.05]EQUALLY SPACEDON A 6.000 B.C.[152.4]

1-1/4 NPT

1.000 SQ[25.40]

1/2 NPT

FLOAT DIMENSIONS

Type 1

Type 2

Type 3

Type 4, 5

F2 F3

CLT-VS5F3-20.25-02.00-23.50Continuous Level TransmitterVoltage, proportional signal of 0 to supply voltage4-20 mABrass with Beryllium copper stops316 SS with SS ARMCO PH-15-7MO stops

1/2˝ NPT (Output Type V only)1-1/4˝ NPT (Float F1 only)2˝ NPT3˝ 150# Flange, Carbon Steel (Connection material S only)Max. pres. 150 psi (10.3 bar)3˝ 150# Flange, 316 SS (Connection material S only)Max. pres. 150 psi (10.3 bar)

ExampleConstruction

Output

Stem and Connection Material

ConnectionType

FloatType

IndicationLength

Top FloatStop”C”

Dimension

OverallLength “B”

CLTCLT

V

VC

S

BS

5

1234

5

F3

F1F2F3

23.50

00.00

02.00

00.00

20.25

00.00

MaterialBuna NBuna N316 SS

Min s.g.0.550.550.75

Max. Pres. psi (bar)150 (10.3)150 (10.3)300 (20.7)

Float Factor in (mm)2.0 (50.8)2.5 (63.5)3.5 (52.4)

Length that the unit sends an output for level. Maximum is 68˝ (173 cm).

Distance from bottom of mounting connection to upper floatstop. Minimum is 1/4˝ (6.4 mm)

To calculate overall length, add Indication Length, Top Float Stop Dimension “C”, and Float Factor. Maximum length is 72˝ (1.82 m)

F1

Models are built to your specifications.

pg248 7/29/05 9:34 AM Page 1


Level

Continuously monitor the level of liquids and slurries, withoutworry of false signals as a result of material build-up. Loop poweredSeries CRF delivers a 4-20 mA isolated output signal proportional tothe height of material in a tank or holding vessel. Continuous leveltransmitter can be field calibrated to fit your specific application. In-tegral electronics and two-wire design simplify installation. Probesshould be mounted vertically and are easily trimmed to shorterlengths where required. When mounting in nonmetallic or horizontaltanks, a separate grounding rod must be used. Consult factory re-garding mounting flange, grounding rod assemblies, optional pressurerating, longer lengths and sanitary connection.

ModelCRF Continuous Level Transmitter

Loop-Powered, 4-20 mA Output, RF Admittance Technology

MODELS


Connection: 316 SS.Probe: Teflon®.

Accuracy: ± 0.1% of full rangerepeatability, ± 0.3% of full rangelinearity.Temperature Limits: Probe: -40 to250°F (-40 to 121°C), Electronics: -40 to 180°F (-23 to 82°C). Pressure Limit: 100 psig (6.89bar).Power Requirements: 18 to 30VDC.Output Signal: 4 to 20 mA, 2 wire.Zero and Span Adjustments:Zero: 0 to 500 pF, Span: 25 to 2200pF.Loop Resistance: 600 Ohms at 24VDC.Current Consumption: 0.6 VA.

Electrical Connections: Screwterminal.Conduit Connection: 1/2˝ femaleNPT.Process Connection: 3/4˝ maleNPT standard. Optional 2, 3, or 4˝150# flange in 316 SS or PVC, 1-1/2˝ or 2” sanitary clampconnection.Enclosure Rating: Weatherproof.Mounting Orientation: Verticallymounted.Weight: 6 ft probe model is 7.25 lb(2.39 kg).Probe Length: Rigid Rod: 12˝(304.8 mm) to 144˝ (3.66 m).Flexible cable with weight: 24˝(609.6 mm) to 240˝ (6.096m).Options: Flange mount assemblieswith reference rod, flexible cableprobe, optional connections listedunder process connection.

MODELS

SeriesPLT Piezoresistive Level Transmitter

2-wire, Loop-Powered, ±0.25% Accuracy

SPECIFICATIONSService: Compatible liquids.Wetted Materials: 316 SS and Teflon®.Accuracy: ± 0.25% of span.Repeatability and hysteresis: ± 0.10% offull range. Temperature Limits: 0 to 200°F(-18 to 93°C).

Compensated Temperature Range:0 to 180°F (-18 to 82°C).Pressure Limit: 3 times the full range. Power Requirements: 18 to 30 VDC.Output Signal: 4 to 20 mA, 2 wire.Zero and Span Adjustments: Zeroadjustment for elevation compensation:25%.Loop Resistance: 1000 Ohms at 24VDC.

Electrical Connections: Screw termi-nal.Conduit Connection: 1/2˝ female NPT.Process Connection: 2 or 3˝ 150#flange, 3˝ 300# flange. 1/4˝, 1/2˝, or 3/4˝female NPT. Enclosure Rating: Weatherproof.Mounting Orientation: Any position.Weight: NPT Connection: 7.95 lb (3.61kg), 2˝ flange connection: 11.85 lb (5.38kg).Fill Solution: Silicone oil.Vibration Limits: ±1 g, 10 to 200 Hz.Options: See process connection forother connection options. 10 psi (.69bar) up to 500 psi (34.47 bar) ranges.

4-1/2[114.30]

1/2 FEMALENPT CONDUITCONNECTIONTYP 2 PLACES

4-1/2[114.30]


REMOVAL

11/16[17.46]

FLANGEMOUNT

3-7/16[87.33] 11/16

[17.46]

7-1/2[190.50]

2-1/2[63.50]

Series PLT Piezoresistive Level Transmitters provide reliable mea-surement and control of process levels by sensing the hydrostatic pressurein a tank. The loop-powered level transmitter delivers a 4 to 20 mA output sig-nal proportional to hydrostatic pressure and specific gravity of the fluid forindicating, recording or control purposes. Easily accessible zero and spanpotentiometers make calibration in the field quick and simple. Units areequipped with EMI and reverse polarity protection.APPLICATIONSMonitor and control levels of water, chemicals, lubricants, or paints in ventedtanks. Ideal for fluids with suspended solids such as wastewater and slurries.

APPLlCATIONS Alcohols, wastewater, oils, polymers, acids, caustics, pulp, slurries,wood chips, water-based products in tanks, bins, or other vessels.

3/4 MALE NPTPROCESS CONNECTION

1/2 FEMALE NPTCONDUIT CONNECTION

TYP 2 PLACES

"L" 1-3/8[34.93]

4-1/2[114.3]

4-1/2[114.3]

11/16[17.46]


REMOVAL

3-7/16[87.33]

11/16[17.46]

Model Number

CRF-TR0-34T-072CRF-TR0-34T-096

Probe

Teflon® coated 316 SSTeflon® coated 316 SS

Length

6 ft (1.83 m)8 ft (2.44 m)

MODEL NUMBER RANGE MOUNTINGPLT1040 1 psig (0.07 bar) 2 ft (.61 m) 1" female NPTPLT1050 1 psig (0.07 bar) 2 ft (.61 m) 2" FlangePLT2040 5 psig (0.34 bar) 10 ft (3.05 m) 1" female NPTPLT2050 5 psig (0.34 bar) 10 ft (3.05 m) 2" Flange

pg249 7/29/05 9:34 AM Page 1


Lev

elSeries

UT Ultrasonic Level TransmitterNoncontact Measurement, ±0.25% Accuracy, 4-wire

Series UT Ultrasonic Level Transmitters provide reliable, non-contact measurement for liquid level control in tanks and other vessels.Integral electronics generate an ultrasonic pulse which is transmittedthrough the air space in the tank. The pulse is reflected back to the sen-sor at the liquid/air interface. From the received echo, the time of flightcan be calculated which is directly proportional to the distance of the liq-uid surface to the sensor. A continuous 4 to 20 mA output signal is gen-erated and updated every half second. Units feature a fully adjustablezero and span, height and distance mode adjustment, lost echo LED indi-cation, and reverse polarity protection.

5.118[129.99]

5.118[129.99]

6.080[154.43]

4.000[101.6]

3/4" MALE NPT

4.826[122.58]1.811

[46.00]

(Ø0.875)[22.23]

6.500[165.10]

3.750[95.25]

3/4 FEMALE NPT

.688[17.48]

10.00[254]

3.750[95.25]

3/4 MALE NPT

Ø.875 [22.23]

5.00[127.00]

UT125 UT1264

SPECIFICATIONSRange: 10 ft (3 m).Service: Liquids.Wetted Material: UT125: CPVC;UT1264: Kynar®.Accuracy: ±0.25% full scale.Repeatability: 1/8” (3.2 mm) typi-cal.Temperature Limits: Sensor:–20 to 160°F (–29 to 71°C),Electronics: –10 to 170°F (–23 to77°C) compensated over full rangeof sensor.Pressure Limits: 100 psig (6.9bar).Blind Zone: 6˝ (15 cm).

Beam Angle: Conicle 12°.Power Requirements: 16 to 30VDC.Output Signal: 4 to 20 mA DC(isolated), 4-wire.Zero and Span Adjustments:Zero: 6˝ to 114˝ (15 to 290 cm),Span: 1˝ to 120˝ (2.5 to 305 cm).Process Connection: 3/4˝ maleNPT.Enclosure Rating: UT125: NEMA7, cast aluminum; UT1264: NEMA4X (IP67), ABS plastic.Mounting Orientation: Vertical.Weight: UT125: 5 lb (2.3 kg);UT1264: 2.0 lb (0.91 kg).

SeriesSLT Submersible Level Transmitter

316 SS Construction, ±0.25% Accuracy, Easy to Install

Series SLT Submersible Level Transmitter is designed to provideaccurate and reliable liquid level measurement in tanks, wells, ponds, floodchannels, or landfills. The fully submersible transmitter and cable are easyto install—simply lower the unit to the appropriate depth for measurement.The transmitter measures hydrostatic pressure and transmits a 4 to 20mA output signal proportional to the liquid level. The Series SLT is con-structed of 316 SS and includes a removable, non-clogging snubnose endto protect the sensing element. Units are reverse polarity and surge pro-tected.

.875TYP.

[22.2]

7.000 [178]6.090 [155]

Ø 1.250[31.8]

12408600

MODELS

SPECIFICATIONSService: Liquids.Wetted Materials: 316 SS, Viton®

O-ring, HDPE cable jacket.Accuracy: ±0.25% FS, BFSL(includes linearity, hysteresis, andrepeatability); ±0.50% FS for modelSLT6 only.Temperature Limits: –25 to140°F (–32 to 60°C).Pressure Limits and OverrangeEffect: ±0.15% FS @ 300% ofmaximum range.Compensated TemperatureRange: 23 to 130°F (-5 to 55°C).

Thermal Effects: Max ±1% URLoutput change for ±25°C temp.change within compensated rangewhen calibrated @ 25°C.Power Requirements: 12 to 24VDC.Output Signal: 4 to 20 mA DClimited to 30 mA DC.Zero and Span Adjustments:±0.50% FS set @ 77°F (25°C).Loop Resistance: 800N max @28V.Electrical Connection: Attached4-wire, 20 AWG polyethyleneshielded cable.Weight: 1.0 lb (454 g).Agency Approvals: CE.

Model UT125 Ultrasonic Level Transmitter, CPVCModel UT1264 Ultrasonic Level Transmitter, Kynar®

Model Range CableNumber LengthSLT6 0 to 6 psi (0 to 13.8 ft H2O) 50 ft (15 m)SLT15 0 to 15 psi (0 to 34.6 ft H2O) 75 ft (23 m)

pg250 8/8/05 3:16 PM Page 1


Level

SBLT Submersible Level Transmitter is manufactured for years of troublefree service. The transmitter consists of a bonded foil, strain gauge, sensing el-ement, encased in 316 SS housing. Superior lightning and surge protection uti-lizing dual arrestor technology, grounded to case, eliminating both power supplysurges and lightning ground strike transients. Bullet nose design protects di-aphragm from damage. Comes equipped with a 220-pound tensile strength,shielded, vented, Polyurethane cable. Ventilation tube in the cable automatical-ly compensates for changes in atmospheric pressure above the tank. The vent isprotected with a filter eliminating moisture collection in the transducer.

APPLICATIONS• Well monitoring; Ground water monitoring; Environmental remediation; Sur-face water monitoring; Down hole; Water Tanks

.750[19.05]

5.800[147.32]

SPECIFICATIONSService: Compatible liquids.Wetted Materials: Body: 316 SS, Cable: Polyurethane. Bullet Nose: PVC.Accuracy: ±0.20% of full scale.Temperature Limits: -40 to 150°F (-40 to 65.6°C).Compensated Temperature Range: 0 to 140°F (-17.8 to 60°C).Pressure Limit: 1.5X full scale range.Thermal Effect: Less than ±2.0% of full scale per 100°F.Power Requirement: 9 to 36 VDC.Output Signal: 4 to 20 mA DC, 2-wire.Response Time: < 5 ms.Loop Resistance: 750 ohms at 24 VDCElectrical Connections: Wire pigtail.Mounting Orientation: Suspended in tank below level being measured.Can be placed on the bottom of the tank on its side.Standard Features: Calibration certificate.Weight: 3.5 lb (1.59 kg).Electrical Protection: Dual transient lightning and surge arrestors exceed-ing FM approved I/S and meet EMA/RFI standards Mil-Std 461/462 andground to transducer case.

Submersible Level TransmitterPerfect for Ground Water and Wells, Lightning Protected

SeriesSBLT

MODELS

SPECIFICATIONSService: Compatible liquids.Wetted Materials: 17-4 PH SS and ABS Plastic.Accuracy: ±0.25% FS.Stability: ±0.2 % of F.S. for 1-year (non-cumulative).Temperature Limits: -5 to 180°F (-20 to 82°C).Pressure Limits: ±2% of FS. Thermal Effect: 1.5% FS.Power Requirements: 24 VAC.Output: 4-20 mA DC or 0-5 VDC 2-wire.Loop Resistance: 850 ohms @24 VDC.Electrical Connection: Moulded immersible cable.Process Interface: Plastic nose cone.Enclosure: 316 SS, 17-4 PH SS.Weight: 1lb (100 g).

The Series SPT Submersible Pressure Transducer features stabil-ity and accuracy for the most demanding submersible and industrial ap-plications. Units include a plastic nose cone to protect the sensing element.The rugged stainless steel construction and the 81 foot (24.6 m) cable addan element of durability and versatility to this transducer. Units includecircuitry for protection against noise, voltage spikes, and static discharge.The submersible transmitter is a excellent choice for ground water moni-toring, reservoirs, waste water, well monitoring, flood channels and land-fills.

SeriesSPT Submersible Pressure Transmitter

Stainless Steel Housing, Fully Submersible, 4-20 mA or 0-5 VDC Output

MODELS

3/4 HEX(19)

1-5/64(27)

INTERGRAL PRESSUREPORT G 1/8

3-41/64(92) MAX ABSOLUTE

3-3/16(81) MAX GAUGE4-25/64

(112) MAX ABSOLUTE3-61/64

(100) MAX GAUGE

2-29/64(62)

Model Number Pressure Range Cable LengthSBLT-5-40 5 psi (.35 bar) 40 feet (12.2 m)SBLT-10-40 10 psi (.69 bar) 40 feet (12.2 m)SBLT-15-60 15 psi (1.03 bar) 60 feet (18.3 m)SBLT-20-60 20 psi (1.39 bar) 60 feet (18.3 m)

Extended cable length available contact the factory.

Model Range Output

SPT-101381 0-15 psi 0-5VSPT-401381 0-15 psi 4-20 mA

pg251 7/29/05 9:33 AM Page 1


Lev

el

Submersible Level TransmitterPerfect for Sludge and Slurries, Lightning Protected

SeriesPBLT

PBLT Submersible Level Transmitter is manufactured for years of troublefree service in the harshest applications. The PBLT measures the height of liq-uid above it’s position in the tank referenced to atmospheric pressure. Thetransmitter consists of a bonded foil, strain gauge, sensing element, encased ina 316 SS housing. Perfect for wastewater and slurry applications with featuresto protect the unit from these demanding applications. Superior lightning andsurge protection utilizing dual arrestor technology, grounded to case, eliminat-ing both power supply surges and lightning ground strike transients. Large di-ameter 316 SS diaphragm seal is non-clogging and damage resistant to floatingsolids.

Comes equipped with a 220-pound tensile strength, shielded, vented, Tefzelcable. Ventilation tube in the cable automatically compensates for changes in at-mospheric pressure above the tank. The vent is protected with a filter elimi-nating moisture collection in the transducer.

APPLICATIONS• Wastewater: sludge pits, clarifiers, digesters; Alum tanks; Chemical storagetanks; Oil tanks; Lime slurry; Sumps; Reservoirs

SPECIFICATIONSService: Compatible liquids.Wetted Materials: 316 SS and 15-5 SS, Cable: Tefzel®.Accuracy: ±0.25% of full scale.Temperature Limits: -20 to 190°F (-28.9 to 87.8°C).Compensated Temperature Range: 0 to 180°F (-17.8 to 82.2°C). Pressure Limit: 2X full scale range.Thermal Effect: Less than ±2.0% of full scale per 100°F.Power Requirement: 9 to 36 VDC.Output Signal: 4 to 20 mA DC, 2-wire.Response Time: < 5 ms.Loop Resistance: 750 ohms at 24 VDC.Electrical Connections: Wire pigtail.Enclosure Rating: Intrinsically safe with proper barrier.Mounting Orientation: Suspended in tank below level being measured.Can be placed on the bottom of the tank on its side.Weight: 8.8 lb (4.0 kg).Standard Features: Calibration certificate.Electrical Protection: Dual transient lightning and surge arrestors exceed-ing FM approved I/S and meet EMI/RFI standards Mil-STD 461/462 andground to transducer case.

MODELS

3-7/16[87.31]

2-5/16[58.74] 8-1/2

[215.90]

1-1/2[38.10] 1/2 NPT

STRAINRELIEF

BREATHER TUBE

SUBMERSIBLECABLE

1/4 DIN Control EnclosuresWeatherproof, Durable, Pre-Cut Mounting Hole

SeriesA-900

&A-901 ®

Models A-900 and A-901 are the perfect instrument housings for indoor oroutdoor applications. Protects controls from dirt, dust, oil and water. Unit israted weatherproof type NEMA 4X and has a fully gasketed cover. Standardfeatures include a lockable latch to prevent tampering and flush mounting hard-ware. Includes feet and screws for flush mounting to a wall.

The Model A-900 comes standard with a 1/4 DIN cut out in the front cover.Controller will mount with front face exposed for easy access to the program-ming buttons. Love and Mercoid controllers feature weatherproof NEMA 4Xrated front panels and gaskets enabling the control to be weatherproof pro-tected when installed in the A-900 even though the front face is exposed.Wiring an installed control is easy due to the hinged cover and spacious clear-ance for the control to swing out with front cover. The lockable latch preventsunauthorized removal of the control from the enclosure.

The Model A-901 comes standard with a clear plastic front window and mount-ing hardware to install the control inside the box. Controller mounts justbehind the window assuring easy viewing.

SPECIFICATIONSService: Indoor or outdoor.Rating: NEMA 1, 2, 3, 3R, 4, 4X, 12 and 13.Materials: Body: UV stabilized fiberglass reinforced polyester;Snap Latch: 304 SS; Hinge: Stainless Steel; Mounting Feet and Screws: 304 SS;Window: UV stabilized polycarbonate; Cover Gasket: Neoprene.Agency Approvals: UL 508.

Control Temperature Limits: When using the enclosures with controls that have 10A relay outputs the extra heatgeneration decreases the maximum ambient temperature value that the control can beused at inside the enclosure. Other outputs on our controls are not a concern.

A-900 A-901

4-1/4[107.95]3-39/64[91.68]

7-11/16[195.26]

4-1/4[107.95]

3-39/64[91.68]

7-11/16[195.26]

10-32 UNF-28TYP 8 PLCS

5-1/64[127.40]

5-1/64[127.40]

1-1/2[38.10]

A-901 UNIT(4-1/2 [114.30] STANDOFFS)

4 PLCS

4-11/64[105.97]

1-3/4[44.45]

TOP VIEW BOTTOM VIEW SIDE VIEW

For Models: 25XX3, 26XX3, 26X3X, 26X33, MPCAmbient

Temperature77°F (25°C)104°F (40°C)131°F (55°C)

Maximum CurrentA-901

10 Amps9 Amps6 Amps

A-90010 Amps10 Amps7.5 Amps

MODELS

Model Number Pressure Range Cable LengthPBLT-5-40 5 psi (.35 bar) 40 feet (12.2 m)PBLT-10-40 10 psi (.69 bar) 40 feet (12.2 m)PBLT-15-60 15 psi (1.03 bar) 60 feet (18.3 m)PBLT-20-60 20 psi (1.39 bar) 60 feet (18.3 m)

Extended cable length available contact the factory.

ModelNumberA-900

A-901

Weatherproof enclosure, Type 4X. Controldirect panel mounts in the front of theenclosure.Weatherproof enclosure, Type 4X. Clearplastic window with rear panel for mountingthe control inside the enclosure.

Description

pg252 7/29/05 9:32 AM Page 1


Level The Mercoid MPC Pump Controller provides versatile level

control in a standard 1/4 DIN package. Designed for use withalmost any style level transmitter the unit displays the presentlevel and main set point value. Incorporated in the MPC is pro-grammable level differential for on/off control of one or twopumps, valves, or other devices through two SPDT relays. Also fea-tured are two additional programmable alarm contacts with frontalarm light indication. The MPC is flexible and incorporates a user-friendly programmingmenu. The front face meets NEMA 4X for outdoor panel mounting.So many features are combined into the MPC that it eliminatesmany components in a pump control system.

NEW FEATURES• Alarms can be programmed for output indication of pump seal

failure or over temperature.• Selectable time delay, for pump two, on power up to prevent

both pumps from starting at the same time. If power is lost, upon regaining power a time delay of up to 60 seconds can be selected to prevent too large of a current draw.

FEATURES• Selectable pump alternation when used with two pumps to

minimize pump wear. With alternation “on” a seal failure or over temperature condition will force the non-failed pump to lead status and stop alternation.

• When used with a submersible pump including a moisture sensor the MPC has alarm light indication of seal failure.

• When used with a pump including a thermostat the MPC has alarm light indication of pump over temperature and removes the pump from service. The Pump can be brought back into service automatically or by manual reset when the pump has cooled down.

• Integral 24 VDC power supply for level transmitter.• Displays pump run time from a front panel button.• Test System function that simulates the process input to

insure the pumps are operating or to test programming. • User selectable security lock-out of programming and/or set

points.• Process input retransmission as a current (4 to 20 mA)

or voltage (2 to 10 VDC) analog signal*.

SPECIFICATIONSInputs: 4 (or 0) to 20 mA DC or 2 (or 0) to 10 VDC selectable.Input Impedance: Current = 10 ohms, Voltage = 100 K ohms.Output Ratings:

Control Relays: SPDT, rated 10A @ 240 VAC res.,1/4 hp @ 120 VAC, 1/3 hp @ 240 VAC.Alarm Relays: SPST, 3A @ 240 VAC res., 1/10 hp @ 120 VAC.

Control Type: On/off, reverse (pump out) or direct (pump in) act-ing.Power Requirements: 100 to 240 VAC nominal, +10%-15%, 50 to 400 Hz, single phase; 132 to 240 VDC nominal, +10%-15%.Power Consumption: 7.5 VA maximum.Accuracy: ±0.25% of span, ±1 least significant digit.Display: Two 4 digit, 7 segment 0.56˝ high LED’s.Display Resolution: 1 count.Memory Backup: Nonvolatile memory (no batteries required).Serial Communications: Optional RS-232 or RS-485 withModbus® protocol.Ambient Operating Temperature/RH: 14 to 131°F (-10 to55°C)/0 to 90% up to 104°F (40°C) non-condensing, 10 to 50%at 131°F (55°C) non-condensing.Weight: 16 oz. (454 g).Front Panel Rating: Meets UL Type 4X (IP66).Loop Power Supply (isolated): 24 VDC @ 50 mA, regulated.Seal Failure (Moisture Sensor):

Power: 2.5 VDC.Search Current: 3 micro amps.Resolution: 10K to 500K ohms in 10K ohm steps.

Agency Approvals: UL 508, CE.

Pump ControllerOne or Two Pump Control with Built-In Alternation, Over TemperatureProtection and Seal Failure Monitoring

SeriesMPC

3.596(91.3 mm)

Panel Thickness0.250 (6.53 mm) Max.

Panel cut-out: 3.620 x 3.620 in, +0.032/-0.000(92 x 92 mm, +0.8/-0.0).

Allow for 0.5 in (13 mm) clearance at the rear of the instrument.

Meets IP66 (UL Type 4X)

3.774(95.9)

3.774(95.9)

4.500(114.3)

0.530(13.5)

A-901

NEWFeatures!

ACCESSORIES:Weatherproof Enclosures, NEMA 4X.See page 252 for details.

For compatible level transmitters see Mercoid Series SBLT and PBLT.

* Standard model MPC is set for current retransmission.For voltage retransmission add suffix “-RV”. Modbus® is a registered trademark of Schnieder Automation.

Series MPC Pump Controller

OPTIONSRS-232 Modbus®-RTU Serial Communications. Add suffix – 232RS-485 Modbus®-RTU Serial Communications. Add suffix – 485

pg253 7/29/05 9:32 AM Page 1


Lev

el

Relay/Controller/Power Supply10A SPDT Relay, 24 VDC Power Supply, Latching Circuit for Level Control

APPLICATIONS• Use with two point level switches for an adjustable

differential controlling a pump.• Use as an external higher current relay for reed or

NPN switches.• Use as a power supply for NPN switches or transmitters.

FEATURES• Field selectable power requirements of 24 VDC, 24 VAC,

120 VAC, or 240 VAC.• Compact size with flange for surface mounting.• Manual reset capability.

The Series PCP level controller is designed to be a powersupply, an external relay, and a latching relay for differentiallevel control with two level switches. As a power supply the PCPcan step down line voltage to 5 or 24 VDC to power NPN switch-es such as the OLS and PC level switches or to power a trans-mitter. The PCP can function as an external relay to increaseswitching capability by providing up to a 10A SPDT contact fordirect control of moderate loads. As a latching relay the PCP canbe used with any two normally open level switches and providelevel control for pumps. The latching circuit can also be used tohold the relay in an actuated state until manually reset.

SPECIFICATIONSInputs: One or two normally open switches.Output Type: SPDT switch.Output Rating: See model chart.Control Type: On/off with manual reset capability.Power Requirements: 24 VDC, 24 VAC, 120 VAC, or 240 VAC.Power Consumption: DC power: 15 mA maximum, AC power: 55mA maximum.Ambient Operating Temperature: 0 to 140°F (-18 to 60°C).Weight: 1.06 lb (0.48 kg).Enclosure Rating: General purpose.Loop Power Supply: 5 or 24 VDC regulated. 200 mA maximum.Mounting Orientation: Horizontal or vertical.

SeriesPCP

3/16 DIA. TYP

2-11/32

4-39/64

1-3/16

5/8 DIA. X THRU

3-1/24-23/32

5-49/64

5-1/4[146.45]

[133.35]

[89.00][19.85]

[59.53]

[119.23]

[30.16]

1-13/32 TYP

[4.75]

2 PLCS [15.88]

[35.72]

MODELS

F7

Pump

Drain

PCP

F7

Pump Out Control with F7 Level Switches and PCP Controller

Electrical Rating of ContactModelNumberPCP-1PCP-5PCP-10

120 VAC0.5A5A10A

30 VDC1A5A5A

Max. Switching Capacity62.5 VA, 33 W600 VA, 150 W1250 VA, 150 W

pg254 7/29/05 9:30 AM Page 1


Level

Mini View-Rite Level IndicatorCustomized, Visual Level Indication, Compact Size

Miniature custom level indicators are ideal for high-visibility levelindication in tight spaces. All stainless steel housing provides ruggeddurability with a diameter of only 1-1/4 inches (32 mm). Select themounting type that will best fit your application and an indicationlength of up to 96 inches (244 cm). View-Rite level indicators incorpo-rate a pressure tight housing with internal float that magnetically acti-vates external level indication flags, switches, or transmitter.

SPECIFICATIONSService: Clean, low-viscosity liquids.Pressure Limits: F 300°F, 400 psi (27.6 bar); G 300°F, 373 psi (25.7bar).Tube Diameter: 1-1/4˝ (32 mm).

L1 & C to L1

C to C

TYPICAL MEASUREMENTSC to C = L1 + 7.72˝ (196.09 mm) C to C = L1

TOP & BOTTOM SIDE & SIDE

SeriesMVR

MVR-SSS1-TPD-0.8-150-090-80P1-IMini View-Rite Level Indicator304 L SS Housing, 316 L SS Float, Viton® O-ringTop/Bottom ConnectionsSide/Side Connections1/2˝ NPT (Female on TB, and Male on SS Configuration)1/2˝ 150# RF FlangeTopBottomTop and Bottom (Only with SS Configuration)NoneDrain, 1/2˝ female NPT (Only with SS Configuration)Vent, 1/2˝ female NPT (Only with SS Configuration)Drain and Vent (Only with SS Configuration)Specific Gravity of fluid, minimum 0.8

Operating Pressure, in psi. Maximum is 400 psi (27.6 bar)

Operating Temperature of the fluid, in °F. Maximum is 400°F (20°C)

Length of level indicator, in whole inches. Maximum of 96˝ (2.44m)

Plastic, white and orange [300°F (149°C) maximum]Aluminum, silver and blackNoneFeet and InchesInches Only4 to 20 mA transmitter of level [300°F (149°C) maximum]0 to 5 VDC transmitter of level

ExampleConstruction

WETTED Materials

Configuration

ProcessConnection

FloatAccess

DrainandVent

Spec. GravityOperatingPressureOperating

TemperatureIndicatingLength, L1Indicating

FlagsVisual

IndicatingScaleOutputOptions

MVRMVR

S

S

SS

TBSS

1

13

TP

TPBMTB

D

NDVB

0.8

0.0

150

000

090

000

80

00

P

PA

1

N12

I

IV

SWITCH MODULESClamp onto the level indicator. SPST, rated .17A @ 120 VAC, .08A @240 VAC, .13A @ 120 VDC, .06A @ 240 VDC.

MVR-S1, Maximum temperature is 300°F (148.9°C). Polysulfone with 1/4˝ female NPT conduit connection.MVR-S2, Maximum temperature is 750°F (399°C). 316 SSwith 1/2˝ male NPT conduit connection.MVR-S3, Maximum temperature is 750°F (399°C). Explosion-proof terminal box with 1/2˝ female NPT conduit connection.


pg255 7/29/05 9:30 AM Page 1


Lev

el

View-Rite Level IndicatorCustomized to Fit Any Application, Durable, 316 SS Housing and Float

SeriesVR

Customize level indicators to meet application require-ments. Visi-rite level indicators are low maintenance, environ-mentally friendly, durable, and require no external power.Specify any indication length up to 96 inches (244 cm). View-Rite level indicators incorporate a pressure tight housing withinternal float that magnetically activates external level indica-tion flags, switches, or transmitter.

SPECIFICATIONSService: Clean, low-viscosity liquids.Pressure Limits: 275 psi (18.9 bar), 225 psi (15.5 bar) @ 100°F (37.8°C),215 psi (14.8 bar) @ 300°F (148.9°C),195 psi (13.4 bar) @ 400°F (204.4°C).Tube Diameter: 2-1/2˝ (64 mm).

OPTIONAL SWITCH MODULESClamp onto the level indicator. SPST, rated .17A @ 120 VAC, .08A @ 240VAC, .13A @ 120 VDC, .06A @ 240 VDC.

VR-S1, Maximum temperature is 300°F (148.9°C).Polysulfone with 1/4˝ female NPT conduit connectionVR-S2, Maximum temperature is 750°F (399°C). 316 SS with 1/2˝ male NPT conduit connection.VR-S3, Maximum temperature is 750°F (399°C). Explosion-proof terminal box with 1/2˝ female NPT conduit connection.

L1 & C to C L1

C to C

TYPICAL MEASUREMENTSC to C = L1 + 10.25˝ (260.35 mm) C to C = L1

TOP & BOTTOM SIDE & SIDE

VR-SSS1-TPD-0.8-150-090-80P1-IView-Rite Level Indicator316 L SS, Viton® O-ringTop/Bottom ConnectionsSide/Side Connections1/2˝ NPT (Female on TB, and Male on SS Configuration)1˝ NPT (Female on TB, and Male on SS Configuration)1˝ 150# RF Flange2˝ 150# RF FlangeTopBottomTop and Bottom (Only with SS Configuration)NoneDrain, 1/2˝ female NPT (Only with SS Configuration)Vent, 1/2˝ female NPT (Only with SS Configuration)Drain and Vent (Only with SS Configuration)Specific Gravity of fluid, minimum 0.8Operating Pressure, in psi. Maximum is 275 psi (18.9 bar)Operating Temperature of the fluid, in °F. Maximum is 400°F (20°C)Length of level indicator, in whole inches. Maximum of 96˝ (2.44 m)Plastic, white and orange [300°F (149°C) maximum] Aluminum, silver and blackNoneFeet and InchesInches Only4 to 20 mA transmitter of level [300°F (149°) maximum]0 to 5 VDC transmitter of level

ExampleConstruction

WETTED Materials

Configuration

ProcessConnection

Float Access

Drainand Vent

Spec. GravityOperating Pressure

Operating Temp.Indicating Length, L1

Indicating Flags

VisualIndicating

Scale

Output Options

VRVR

S

STBSS

1245

TPBMTB

00

0.0

NDVB

000000

PA

N12

IV

SS 1 TP D 0.8 150 090 80 P 1 I


pg256 7/29/05 9:30 AM Page 1


Level

SeriesPS Proximity Sensors

Capacitive or Inductive 3-Wire DC, Threaded Body

MODELS

The Series PS Proximity Sensors are noninvasive sensors idealfor level detection, position indicating and counting applications. Ca-pacitive type sensors detect electrically conducting and nonconductingmaterials, liquids, solids, or powders and include a sensitivity adjust-ment to differentiate between various materials. Inductive sensors de-tect ferrous or nonferrous metals only. A bright LED indicates thestate of the output switch. Sensors feature short circuit, reverse po-larity, and transient protection. Small size and threaded body make in-stallation easy. Inductive sensors are embeddable (can be mountedflush). Capacitive sensors are environmentally protected to IP65 andInductive sensors are protected to IP68. Units include two fixing,screwdriver, and operating manual.

Dim.ABCDE

PSC20103M18

1.065 (27)0.157 (4)

3.156 (80)2.36 (60)

PSC20203M30

1.614 (41)0.197 (5)

3.156 (80)2.36 (60)

PSI2002203M12

0.688 (17)0.125 (3)2.36 (60)1.58 (40)

PSI2005303M18

0.938 (17)0.125 (3)2.87 (73)1.97 (50)

PSC Series

PSI Series

SeriesTLI Tank Level Indicator

Double Wall Construction for Ultra-Pure or Corrosive Liquids

9 TLI-0[228.60]15 TLI-1[381.00]27 TLI-2[685.80]

39 TLI-3[990.60]

51 TLI-4[1295.40]

1-1/2[38.10]

The Series TLI Tank Level Indicator provides a visual indica-tion of the height of liquid contained in a tank. The 1/2-foot unit canalso be used as a sight flow tube when mounting in a pipeline. TheTLI series utilizes a double wall construction to indicate the levelof corrosive or ultra-pure liquids and is available with PVC,Polypropylene, or Teflon® fittings and 1/2˝ or 3/4˝ NPT threads.Viton® seals are standard. All units are hydrostatically tested to400 psi (27.6 bar).

SPECIFICATIONSService: Compatible gases and liquids.Wetted Materials: Tube: Borosilicate glass. End Connections: PVC,Polypropylene, or Teflon® (PTFE). O-ring: Viton®.Temperature Limit: PVC end connections: 140°F (60°C), Polypropyleneend connections: 185°F (85°C), Teflon® end connections: 210°F (100°C).Pressure Limit: 100 psig (6.9 bar) at 180°F (82°C).Connections: 1/2˝ female NPT standard. Change 1 in model number to 2for 3/4˝.Enclosure: Exterior acrylic shield tube to protect glass tube.

MODELS

*NPN Transister

SPECIFICATIONSWetted Materials: Glass reinforced plastic (PSC), Stainless Steel (Model PSI2002203), Nickel-plated Brass (Model PSI2005303).Temperature Limits: -22 to 212°F (-30 to 100°C) capacitive, -13 to 158°F (-25 to 70°C) inductive.Enclosure Rating: PSC, IP65; PSI, IP68.Repeatability: ±0.05% (Model PSC20103), ±0.1% (Model PSC20203 ±0.01%(PSI Models).Power Requirements: 8 to 30 VDC.Switch Type: Normally open NPN transistor, sinking.Electrical Rating: 250 mA (PSC), 200 mA (PSI).Minimum Load Current: 8 mA (PSC), <25 mA (PSI).Leakage (Off-State) Current: <3 mA (PSC), <0.08 mA (PSI). Voltage Drop: <3.5V @ 250 mA (PSC).<2.5V @ 200 mA (PSI).Ripple: 10%.Electrical Connection: 9.8 ft (3 m) cable.Deadband: 20% of range (PSC), 15% of range (PSI). Initializing Time Delay: <10 msec.Agency Approvals: CE.

OPTIONS-AT Aluminum Tag-P Polypropylene Fittings-T Teflon® FittingsNote: For 3/4˝ NPT fittings, change the last digit of the model number to 2.

Model NumberTLI-0-1TLI-2-1TLI-3-1TLI-4-1

Glass Tube Length6 in. (152.4 mm)24 in. (609.6 mm)36 in. (91.4 cm)48 in. (121.9 cm)

ModelNumber

PSC20103PSC20203PSC30203*PSI2002203PSI2005303

Type

Cap.Cap.Cap.Ind.Ind.

BodySize

M18M30M30M12M18

SwitchingFrequency

400 Hz250 Hz250 Hz800 Hz500 Hz

DetectingDist. in (mm)

.04-3 (1-10).08-79 (2-20).08-79 (2-20)

.08 (2)

.19 (5)

pg257 level 7/29/05 9:28 AM Page 1

dwyer level

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