guided wave radar/lr level sensor brochure uk

7/30/2019 Guided Wave Radar/LR Level Sensor Brochure UK

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Lev

elsensors

www.ifm.c

om/gwr

Innovation onthe right wavelength.

Level measurementin compact tanks usingmicrowave technology.


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clear space around the sensor 5 cm

inactive measuring range 4 cm

blocking distance

clear space

evaluation

HFThe new efector gwr:

Measuring levels using the

innovative measuring principle

of the GWR technology

(Guided Wave Radar).

Increase plant uptime:The robust and compact sensor

is maintenance and wear free.

Deposits and light foam forma-

tion are largely suppressed.

Fast set-up thanks to ease of use

and simple mounting. Variabel:

The probe can be cut to length,

if needed.

4-digit alphanumeric LED display.

Two or four programmable

switch points with hysteresis or

window function.

Medium temperature up to 80 C.

Price and performance

are convincing.

The innovative measuring principlefor high ease of use and low cost.

transmitted pulse

reflection echo

The efectorgwr

operates to the

principle of

guided wave radar

and measures the

level using electro-

magnetic pulses in

the nanosecond

range. The pulses

are transmitted by

the sensor head

and guided along

the probe. If the

microwave pulsehits the medium

to be detected, it

is reflected, guid-

ed back to the

sensor and evalua-

ted. The time be-

tween transmitting

and receiving the

pulse directly re-

lates to the travel-

led distance and

the current level.

Echo time of flight principlein GWR technology.


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efector gwrwith microwave technology.The new quality standard in level monitoring.

efectorgwrreli-

ably monitors the

level of coolants

for machine tools

even in difficult

applications such

as grey cast iron

processing.

Build-up on the

stainless steel

probe caused by

metal particles or

grind swarf do not

affect operation.

For industrialapplications

Coolant monitoring Part cleaning monitoring

High performance attractive price.

efectorgwrpro-

vides the advan-

tages of an innova-

tive measurement

technology at an

extremely attrac-

tive price.

It is a realistic

alternative to sim-

ple vibration forks

and float switches,

the disadvantages

of which are, for

example, a high

level of mainte-

nance and limited

life due to wear.

Thanks to its ease

of installation and

use the efector

gwris much more

user-friendly than

conventional mea-

suring systems

using microwave

technology.

perfo

rmance

GWRlevel meter

price

float switchvibration fork

efector gwr

mechanicalswitch

efector gwr


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The efectorgwris the best alternativeto mechanical float switches becauseof its display and its two freely pro-grammable switching outputs. Highoperational reliability: Even if thereare deposits or the first indication offoam formation, the sensor operationis largely reliable.

Reliable in operation.

The parameters such as switch-onpoint and switch-off point point areset by simply pressing a pushbutton.The current level and the set parame-ters are visible at a glance on the 4-

digit alphanumeric display.

User-friendlyparameter setting.

The efectorgwris directly mountedinto the tank via a process connectionor via a flange plate. It is electricallyconnected to the controller via anM12 connector. Very easy:If needed, the probe can be cut tolength by the user.

Easy installation.

20 40 60 80 100

comparison: mechanical float switch with cleaning intervalsus the maintenance-free efector gwrlevel sensor

cost share [%]

cost unit

cost installation

cost level display

cost cleaning intervals

unforeseen cost / standstill

In industrial part

washer applica-

tions the efector

gwrreliably

detects the level

of aqueous

cleaning agents at

medium tempera-

tures up to 80 C.

The comparison

clearly shows the

economic benefit:Using the efector

gwr, costs can be

reduced by up to

70 % compared to

mechanical moni-

toring systems.


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Probes / accessories

Description Orderno.

Probe 240 mm, stainless steel (303S22) E43203







Flange plate LR 65-80 E43202

Flange plate LR 73-90 E43201

Flange plate LR 73-90 NPT E43206

Application

Electrical design

Connection

aqueous media, coolants, cleaning agents, water

DC PNP

4-wire

DC PNP

8-wire

DC PNP

4-wire

Technical data level sensor LR

Output

Current rating [mA]

Current consumption [mA]

Max. tank pressure [bar]

Medium temperature [C]

Function display

Display unit LEDSwitching status LED

Housing materials

Connection

200

Operating voltage [V] 18...30 DC

< 80

-1...4

3

Dielectric constant medium > 20

Power-ondelay time [s]

1.5

0.5

Switch point accuracy [cm]

Repeatability [cm]

0...60

0...80

IP 67 III

2 x green2 x yellow

2 x green4 x yellow

2 x green1 x yellow

stainless steel (303S22), PTFE, NBR

4-digit alphanumeric display

Operating temperature [C]

M12 connector to EN 61076-2-101, gold-plated contacts

Protection

FKM, NBR, PBT, PC, TPE-V, stainless steel (304S15), PTFE, PEI

Measured values, programming

Materials(wetted parts)

2 x normally closed /normally open progr.

4 x normally closed /normally open progr.

1 x normally closed /normally open progr.1 x analogue output4...20 mA / 0...10 V

Order no. LR7000

30

63

M12x1

G 43

8I1

L

50

57

A

I2

32

1

76

87

6

32

Sockets

Description Orderno.

2 m PUR, M12 angled, without LED, 4-pole EVC004

5 m PUR, M12 angled, without LED, 4-pole EVC005

2 m PUR, M12 angled, without LED, 8-pole E11231

5 m PUR, M12 angled, without LED, 8-pole E11232

1 = 4-digit alphanumeric display2 = LEDs (display unit / switching status)3 = Programming buttons

Process connection G 3/4

LR7300

NPT 3/4

LR8000

G 3/4

LR8300

NPT 3/4

LR3000

G 3/4

LR3300

NPT 3/4

LR7000, LR8000, LR3000

You can find the current prices on our website at www.ifm.com


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ifm electronic

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Overview ifm main catalogues:

ifm electronic gmbh

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Fax +49 / 0201 / 2 42 22 00E-Mail: [email protected]

guided wave radar/lr level sensor brochure uk

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