OVAL GEAR FLOW METERS

J Sensor

J Sensor with local display

J Accessories

DS_Oval_gear_flow_meters 05/2014

150

Measuring principle

Oval gear meters are displacement-type volume meters that transport defined incremental volumes in individual measuring chambers. The measuring element consists of two high precision toothed oval gears, which are driven by the flow of the medium and mesh with each other. In this way, a defined volume is transported for each rotation of the pair of oval gears. The number of rotations is a measure of the amount of fluid that has passed through the meter. The rotations are detected by a sensor element.

Highest accuracy at various viscosities

Performance features

• Positive displacement meter for volumetric flow rate or total flow measurement

• Applicable for fluids such as lubrication oils, mineral oils, hydraulic oils, fuels, liquified gases and others

• No inlet or outlet section required

• High-quality construction for long service life and high reliability

• Long-term stability

• High measurement accuracy and repeatability

• Easy installation

151

Configurations / options

• Pulse output signal NPN open collector, no local display

• Flow rate or total flow indication by local or remote display

• Individual calibration

• Two versions of local displays are available: a battery powered version (lifetime approx. 3 years) or an externally powered version (15...30 VDC) with analogue output (4...20 mA) and pulse output

• Process connection female thread or flange connection

• O-ring material FKM, EPDM or FEP

Threaded Version Flanged Version

152

Technical data

Sensor

Type VO...VA VO...VP** VO...AP**

Accuracy* ±0.5 % of reading

Repeatability* < 0.05 %

Pressure rating Up to 40 bar (up to 25 bar with FEP seal)

Temperature range

Standard -10...70 °C

High temperature sensor -40...125 °C

Materials***

Housing Stainless steel Stainless steel Aluminium

Oval gears Stainless steel PEEK PEEK

Seal FKM (standard) FKM (standard) FKM (standard)

EPDM (option) EPDM (option) EPDM (option)

FEP (option) FEP (option) FEP (option)

Medium

Allowable Viscosity 0.3...350 mPa s 0.3...50 mPa s

Max. particle size 25...100 µm

Electrical data

Supply voltageJ StandardJ High temperature sensor

10...30 VDC10...36 VDC

10...30 VDC 10...30 VDC

Electrical connection M12 x 1 connector

Signal output

StandardHigh temperature sensor

NPN, PNPPNP

NPN, PNP NPN, PNP

Degree of protection EN 60529 IP67

Size VO 015 VO 06 VO 1 VO 2 VO 5 VO 10 VO 50 VO 115

Measuring range [l/min]J Oval gears st. steel (V0...VA)J Oval gears PEEK (V0...VP / AP)

0.03...10.03...1

0.2...50.2...7

0.4...100.4...14

1...301...30

2...502...60

4...1003...120

15...300 35...660

Process connectionJ ThreadJ Flange (according to DIN EN 1092-1)

G¼ G½ G½ G¾DN 15

G 1 G 1DN 25

G 2DN 50

G 2DN 50

Nominal puls rate [1/l] 3100 333 166 100 40 20 4 1.7

* Test conditions: J Viscosity >3 mPa s J Media temperature 20 °C** Not availiable for VO 50 and VO 115*** Other material combinations on request

153

Display

Type Display 1 Display 2 Display 3

Display 8 digit

Electrical data

Power supply Battery Battery 15...30 VDC

Power consumption 100 mA, 30V

Signal outputs Pulse output Pulse outputAnalogue 4...20 mA

Degree of protection IP65

Temperature range

Media temperature -10...70 °C

Ambient temperature -20...70 °C

Storage temperature 10...55 °C

Type

Local (meter mounted)

Remote (wall mounting)

Display 1

General description – displays

• Choice of three display models

• Actual flow rate indication

• Total flow indication, password protected counter

• Mass indication (temperature-dependent)

• Up to two VO sensors can be connected; configurable for differential measurement (Display 2 and 3)

• Impulse output (Display 2 and 3)

• Optionally available for wall mounting with bracket (for media temperatures up to 70 °C)

Sensor with local display

154

Dimensions

Process connection flanged

Size VO 2 VO 10 VO 50 VO 115

A / Installation [mm] 140 170 184 196

C [mm] 108 153 165 243

Bmax*, D [mm] 135 180 192 270

E [mm] 95 130 220 260

F / Process connection DN 15 DN 25 DN 50 DN 50

* Depends on sensor

No display Display 1Display 2Display 3

Process connection threaded

No display Display 1Display 2Display 3

Size VO 015 VO 06 VO 1 VO 2 VO 5 VO 10 VO 50 VO 115

A [mm] 78 78 78 99 112 112 220 260

C [mm] 70 75 85 93 98 125 165 198

Bmax*, D [mm] 96 101 111 120 125 152 214 272

Installation [mm] 73 73 73 90 105 105 184 196

F / Process connection G¼ G½ G½ G¾ G 1 G 1 G 2 G 2

* Depends on sensor

A

B

F

A

B

F

A

F

B

C

A

D

C

A

E

F

A

B

155

Typical pressure drop

0,4

0,3

0,2

0,1

0

1

00,2 1

0,40,6

0,8

VO 015

Durchfluss Q [l/min]

Viskosität in [mPas]

VO 06

1,0

0,75

0,5

0,25

0

30151

15

0

35

0

01

23

45

50

80

Durchfluss Q [l/min]

Viskosität in [mPas]

VO 1

1,0

0,75

0,5

0,25

0

150

80

151

350

02

46

810

30

Durchfluss Q [l/min]

Viskosität in [mPas]

VO 2

1,0

0,75

0,5

0,25

0

10

100

010

2030

250

Durchfluss Q [l/min]

Viskosität in [mPas]

VO 5

1,0

0,75

0,5

0,25

0

010

2030

4050

1000

350

150

70

40

1060,9

Durchfluss Q [l/min]

Viskosität in [mPas]

VO 10

Durchfluss Q [l/min]

1,0

0,75

0,5

0,25

0

020

4060

80100

1000

350

150

70

40

1060,9

Viskosität in [mPas]

VO 50

Durchfluss Q [l/min]

1,0

0,75

0,5

0,25

0

1000

50

350

100150 200

150

250300

70

40

1060,9

0

Viskosität in [mPas]

VO 115

Durchfluss Q [l/min]

1,0

0,75

0,5

0,25

0

1000

150300

350

450600

750

150

70

40

10

6

0,9

0

Viskosität in [mPas]

VO 015

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

VO 06

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

VO 1

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

VO 2

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

VO 5

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

VO 10

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

VO 50

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

VO 115

Pre

ssur

e dr

op [b

ar]

Flow rate [l/min] Q

Viscosity [mm²/s]

156

Order code

Order example VO 01 VA P N I1K

Type

VA*VA*

V*V*

I1KI3KI3KI4KI5KI5KI8KI8KF4KF4KF4KF4K

Oval gear meters, series VO VO

Size Process connection

015 G¼ female06 G½ female1 G½ female2 G¾ female5 G 1 female10 G 1 female50 G 2 female115 G 2 female2 DN 15 flange according to DIN EN 1092-110 DN 25 flange according to DIN EN 1092-150 DN 50 flange according to DIN EN 1092-1115 DN 50 flange according to DIN EN 1092-1

01061A2A5A1050112A10501l

Materials

Body Oval gearsStainless steel Stainless steelStainless steel PEEK (PET for VO50 and VO115)Aluminium PEEK (PET for VO50 and VO115)

VAVPAP

O-rings

FEPFKMEPDM

PVE

Sensor pulse output without display

NPNPNPPNP (high temperature)

NPH

Sensor with display

Display 1Battery powered, local display

Display 2Battery powered, local display and pulseBattery powered, remote display and pulse

Display 3Local Display, pulse and analogue output (4...20 mA)Remote display, pulse and analogue output (4...20 mA)

D

CB

TA

* No further options available

157

Accessories

Accessory part Length Order code

Connection cable with 4-pin cable socket M12 x 1, angle type molded lead, sheathing material PUR,shielded, (Tmax = 80 °C) - UL-approval

3 m 5 m 10 m

XVT 2053 XVT 2009 XVT 2070

4 pin cable socket M12x1 angle type, unassembled VT 1331

3.6 V lithium battery for Display 1 and Display 2 VO 1036

157