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Flow Transmitter / Screw Volumeter LABO-VHS-I / U / F / C Technical data Sensor Nominal width Process connection Metering ranges Measurement accuracy...

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Flow Transmitter / Screw Volumeter LABO-VHS-I / U / F / C

Technical data Sensor Nominal width Process connection Metering ranges Measurement accuracy Repeatability Pressure resistance

Pressure loss Medium

Measures and monitors viscous media (oil) 1.4..2500 l/min Connection G 1..G 21/2 Very low dependence on viscosity Can be used up to 40,000 mm²/s (cSt) 0..10 V, 4..20 mA , frequency/pulse output, completely configurable ● Light and compact device (aluminium housing) ● Operation and measurement possible with forward and reverse flow ● For cost-sensitive applications ● ● ● ● ●

Medium temperature Materials medium-contact

screw volumeter DN 25..65 female thread G 1..G 21/2 see table "Ranges and weights" ±1 % of the measured value (at 20 mm²/s, (cSt) of 1 %..100 % nominal working range (see also diagrams in upstream pages) ±0,25 % Connection SAE PN Construction material flange bar Aluminium without 160 Aluminium with 350 Steel without 350 Steel with 350 others available on request see diagram in upstream pages oil or non-aggressive, self-lubricating fluids -25..+80 °C (150 °C available on request) (special materials available on request):

Characteristics The VHS flow transmitter measures the flow using the volumetric principle, and is suitable for fluid, viscous, lubricant media (e.g. lubricating oil). If the material for the VHS is selected appropriately, aqueous fluids such as soaps, pastes, and emulsions with non-abrasive characteristics can also be measured, as long as they have sufficient lubricity. Because of the volumetric functioning principle, the device is almost completely independent of viscosity. The VHS system consists of two interlacing screws which run in opposite directions, driven by the flowing medium. A magnetically pre-tensioned Hall sensor positioned outside the flow space detects the screw flanks, and creates a frequency signal proportional to the flow. Here, every pulse corresponds to a specific measured volume. There are no magnets in the flow space. The LABO-XXX-I/U/F/C electronics make various output signals available: ● ● ● ●

Analog signal 0/4...200 mA (LABO-VHS-I) Analog signal 0/2..10 V (LABO-VHS-U) Frequency signal (LABO-VHS-F) or Value signal Pulse / x Litres (LABO-VHS-C)

A model with switching output is also available (see separate datasheet). If desired, the range end value can be set to the currently existing flow using "teaching".

1. Body 2. Connections: 3. Main screw 4. Subsidiary screw 5. Ball bearing 6. Ball bearing 7. Screws 8. O-ring 9. Seeger ring 10. Seeger ring 11. O-ring 12. SAE connection 13. SAE flange 14. O-ring 15. Screws 16. Sensor spacer Materials, nonmedium-contact Supply voltage Power consumption

pi-ho_fsp-labo-vhs-iufc_e V1.02-00

Aluminium 6082 anodised Aluminium 6082 anodised or steel Stahl 35SMnPb10 UNI 4838-80 GHISA GJL-250 EN1561 Steel Steel Galvanised steel NBR Steel Steel NBR ASTM A216WCB ASTM A216WCB NBR Galvanised steel Aluminium 6082 anodised Sensor tube: CW614N nickelled Adhesive: epoxy resin Flange bolts: stainless steel 10..30 V DC at voltage output 10 V: 15..30 V DC < 1 W (for no-load outputs)

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Output data: Current output: Voltage output: Frequency output: Pulse output:

Display

all outputs are resistant to short circuits and reversal polarity protected 4..20 mA (0..20 mA available on request) 0..10 V (2..10 V available on request) output current max. 20 mA transistor output "push-pull" lout = 100 mA max. transistor output "push-pull" lout = 100 mA max. Pulse width 50 ms Pulse per volume is to be stated yellow LCD shows operating voltage (LABO-VHS-I / U) or output status (LABO-VHS-F / C) or (rapid flashing = programming) for round plug connector M12x1, 4-pole

Electrical connection Ingress protection IP 67 Weight see table "Ranges and weights" Conformity CE

Signal output curves Value x = Begin of the specified range = not specified range Current output

Voltage output

mA

V

20

10

4 0

0

100 % Flow

x

0

x

100 % Flow

Frequency output V fmax

0

0

x

100 % Flow

fmax selectable in the range of up to 2000 Hz Other characters on request.

Ranges and weights l = Standard m = Option G DN Metering range 1..100 % Qnom

G1 DN 25 l G 11/4 DN 32 l G 11/2 DN 40 m l G2 DN 50 m l G 21/2 DN 65 l

l/min 1.4.. 140 3.5.. 350 5.5.. 550 8.0.. 800 10.0..1000 15.0..1500 25.0..2500

Volume / pulse

cm³ 13.10 29.00 48.58 72.00 103.63 133.00 238.82

Types

LABO-VHS-025...0140 LABO-VHS-032...0350 LABO-VHS-040...0550 LABO-VHS-040...0800 LABO-VHS-050...1000 LABO-VHS-050...1500 LABO-VHS-065...2500

Z=Load

2 3 4

brown

10..30 V DC

white

programming

blue black

2

1

3

4

Weights Body with steel connections

kg 3.44 6.35 10.50 14.20 20.70 25.00 42.70

kg 4.76 8.50 13.60 18.50 27.70 33.20 56.10

SAE Flanges (Weight per pair) kg 5.76 9.55 15.10 18.80 30.30 34.60 60.70

It is recommended to use shielded wiring. The push-pull output) of the frequency or pulse output version can as desired be switched as a PNP or an NPN output.

0V Z

Connection example: PNP 2

l/min 200 500 800 1200 1600 2200 3800

Body with aluminium connections

Before the electrical installation, it must be ensured that the supply voltage corresponds to the data sheet.

Wiring 1

Qmax recommended

Z

signal output NPN

pi-ho_fsp-labo-vhs-iufc_e V1.02-00

Dimensions l = Standard m = Option G G1 G 11/4 G 11/2 G2 G 21/2

DN...range 025…0140 032…0350 040…0550 040…0800 050…1000 050…1500 065…2500

l l m l m l l

x1 20 22 24 33 35

VHS-…GAO.... L1 220 285 332 340 396 405 475

VHS-..GAO

ØD 88 103 122 138 155 168 203

SW 78 -

A 49.0 55.0 58.8 66.5 71.0 77.3 86.0

VHS-..GAX

VHS-…GAX....

M 12 14 16

x2 20 22 24

B 57.1 66.7 79.4

C 27.8 31.6 36.5

20

35

96.8

44.4

24

42

123.8

58.7

L2 324 381 448 456 544 553 633

H 52 48 58

E 80 94 106

F 69 77 89

74

135

116

79

166

150

Handling and operation Installation Any flow direction is possible during installation. Ensure that pipework is clean. Flush before installation. A 30 µm mesh filter should be used. The use of SAE flanges enables the sensor to be installed and removed more easily, and increases the stability to pressure to 350 bar for every connection material. It is possible to replace the electronics during operation, and this presents no danger to the fitter. The sensor does not go into the flow space.

Note The metering range end value can be programmed by the user via "teaching". Requirement for programmability must be stated when ordering, otherwise the device cannot be programmed. The ECI-1 device configurator with associated software is available as a convenient option for programming all parameters by PC, and for adjustment. The teaching option is not available for the pulse output version.

SAE adapter for convenient installation and for increased stability to pressure! (350 bar)

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Operation and programming

Ordering code

The teaching process can be carried out by the user as follows: ● The flow rate to be set is applied to the device. ● Apply an impulse of at least 0.5 seconds and max. 2 seconds duration to pin 2 (e.g. via a bridge to the supply voltage or a pulse from the PLC), in order to accept the measured value. ● When teaching has been successfully completed, pin 2 should be connected to 0 V, so as to prevent unintended programming.

1.

VHS -

The teach-offset point is added to the currently measured value before saving. The offset point can be positive or negative. Example: The end of the metering range should be set to 80 %. However, only 60 % can be achieved without problem. In this case, the device would be ordered with a "teach-offset" of +20°%.. At 60 % in the process, a value of 80 % would then be stored during "teaching". If necessary, a far greater number of parameters can also be programmed using the ECI-1 device configurator.

4.

5.

6.

7.

A 10.

11.

8.

E 12.

13.

S

m=Option 1.

2. 3.

4.

5. 6.

7.

8. 9.

10.

11.

12. 13.

4

3.

9.

LABO - VHS -

The devices have a yellow LED which flashes during the programming pulse. During operation, the LED serves as an display for operating voltage (for analog output) or of switching status (for frequency or pulse output). In order to avoid the need to transit to an undesired operating status during the teach-in, the device can be provided ex-works with a teach-offset.

2.

G

Nominal width 025 DN 25 - G 1 032 DN 32 - G 11/4 040 DN 40 - G 11/2 050 DN 50 - G 2 065 DN 65 - G 21/2 Process connection G female thread Connection material AL connection, anodised A (160 bar, in combination with SAE flange: 350 bar) m Connection, steel (350 bar) S Additional flange X SAE flange, steel (350 bar) no SAE flange (pressure O resistance depends on the connection material) Body material A anodised aluminium Metering range 0140 1.4.. 140 l/min 0350 3.5.. 350 l/min 0550 m 5.5.. 550 l/min 0800 8.0.. 800 l/min 1000 m 10.0..1000 l/min 1500 15.0..1500 l/min 2500 25.0..2500 l/min Seal material N NBR m FKM V Connection for E electronics

l l l l l l l

For nominal width l 025 DN 25 - G 1 l 032 DN 32 - G 11/4 l 040 DN 40 - G 11/2 l 050 DN 50 - G 2 l 065 DN 65 - G 21/2 Signal output I current output 4..20 mA U voltage output 0..10 V F frequency output C pulse output Programming N cannot be programmed (no teaching) m programmable (teaching possible) P Electrical connection S for round plug connector M12x1, 4-pole Optional m 150 °C with electronics separated by 30 cm H

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Required ordering information For LABO-VHS-F: Output frequency at full scale Maximum value: 2.000 Hz

Accessories Hz

● Cable/round plug connector (KB...) see additional information “Accessories” ● converter / counter OMNI-TA ● Device configurator ECI-1

For LABO-VHS-C: For the pulse output version, the volume (with numerical value and unit) which will correspond to one pulse must be stated. Volume per pulse (numerical value) Volume per pulse (unit)

Options Special range for analog output: <= metering range (standard=metering range) Special range for frequency output: <= metering range (standard=metering range) Power-On delay period (0..99 s) (time after applying power during which the outputs are not activated or set to defined values)

l/min

l/min

s

Further options available on request.

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