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
Interface Options
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.
Digital
- I2C-Bus
Analog
- Voltage Output (0-5 V)
For more information on communication, please refer
to section 3 of this document.
Excellent chemical resistance and bio-compatibility
are ensured: The flow path of the LG16 Liquid Flow
Sensor is formed by a straight-thru glass capillary
and end fittings. There are no obstacles in the flow
path
1 Sensing Performance
Table 1: Model specific performance of LG16 (all data for medium H2O, 23°C)
Parameter
H2O full scale flow ratea
H2O sensor output limitb for digital version
LG16-0025 LG16-0150 LG16-0430 LG16-1000 LG16-2000
Unit
µl/min
µl/min
1.50
1.70
10
7
8
80
120
1000
1100
5.0
5000
5500
5.0
5.0
5.0
% of m.v.c
% of full scale
% of m.v.
% of full scale
% m.v. / °C
% full scale / °C
% of full scale
ms
Accuracy below full scale
(whichever error is larger)
0.5
0.3
0.15
0.5
0.2
0.2
<1
0.5
0.5
0.5
Repeatability below full scale
(whichever error is larger)
0.06
0.15
0.007
-
0.05
0.09
0.005
<0.4
0.01
0.13
0.003
<0.4
40
0.02
0.1
0.02
0.1
Temperature coefficient
(additional error / °C; whichever is larger)
Mounting orientation sensitivityd
Flow detection response time 63
Response time on power-up
Operating temperature
0.004
1.0
0.004
1.5
120
ms
+10…+50
-10…+60
100
°C
Ambient storage temperaturee
°C
Operating pressure
200
400
15
30
15
30
bar
Proof pressure
200
bar
aCorresponds with 4.8 V in analog version
bFlow rate at which the sensor output saturates. See section 2 for performance between full scale and saturation point.
cMeasured value
dMaximum additional offset when mounted vertically
eNon-condensing, flow path empty
www.sensirion.com
February 2015 V3
1/8