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February 2015 V3

1/8

LG16 Liquid Flow Meter Series

Compact Liquid Flow Meter for OEM Applications



Liquid flow rates up to 5000 µl/min



Resolutions down to sub nl/min



Totally non-invasive, pressures up to 200 bar



Digital I²C interface or analog out 0-5 V

Product Summary

The LG16 Liquid Flow Meter series enables fast, non-

invasive measurements of very low liquid flow rates

below 5 ml/min. This product line is especially suited

for OEM volume applications requiring small sized

components with high performance at low cost.

Excellent chemical resistance and bio-compatibility

and end fittings. There are no obstacles in the flow

path

Interface Options

Digital

- I2C-Bus

Analog

- Voltage Output (0-5 V)

For more information on communication, please refer

to section 3 of this document.

1 Sensing Performance

Parameter

LG16-0025 LG16-0150 LG16-0430 LG16-1000 LG16-2000

Unit

1.50

7

80

1000

5000

µl/min

1.70

8

120

1100

5500

µl/min

Accuracy below full scale

(whichever error is larger)

10

5.0

5.0

5.0

5.0

0.5

0.3

0.15

0.2

0.2

% of full scale

Repeatability below full scale

(whichever error is larger)

<1

0.5

0.5

0.5

0.5

% of m.v.

0.06

0.05

0.01

0.02

0.02

% of full scale

Temperature coefficient

(additional error / °C; whichever is larger)

0.15

0.09

0.13

0.1

0.1

% m.v. / °C

0.007

0.005

0.003

0.004

0.004

% full scale / °C

-

<0.4

<0.4

1.0

1.5

% of full scale

Flow detection response time

40

ms

Response time on power-up

120

ms

Operating temperature

+10…+50

°C

-10…+60

°C

Operating pressure

200

100

15

15

bar

Proof pressure

400

200

30

30

bar

a

Corresponds with 4.8 V in analog version

b

Flow rate at which the sensor output saturates. See section 2 for performance between full scale and saturation point.

c

Measured value

d

Maximum additional offset when mounted vertically

e

Non-condensing, flow path empty