Product features
Sepecial designed for low pressure gas flow measurement in pipes of 3mm and 8mm.
Support multiple connection modes, easy to install and use.
The sensor chip adopts thermal mass flow measurement without temperature pressure compensation, which ensures the high precision measurement of the sensor.
Multi-sensor integration on a single chip enables a range ratio of 100:1 or higher.
The output mode is flexible, which can either automatically upload data through communication interface or output data through upper query, or output linear analog voltage through analog interface.
The sensor has high zero stability.
All measuring ranges are high stability,accuracy and excellent repeatability.
Low power consumption, low pressure loss.
Fast response.
Mechanical dimensions
Technical parameters
|
Parameters
|
FS4003
|
FS4008
|
Unit
|
|
Diameter
|
3
|
8
|
mm
|
|
The maximum flow
|
2,3,4,5
|
10,20,30,40,50
|
SLPM
|
|
Measuring proportion
|
100:1
|
|
|
Precision
|
±(1.5+0.2FS)
|
%
|
|
Repetitive
|
0.25
|
%
|
|
Zero output drift
|
±30
|
mV
|
|
Output drift
|
±0.12
|
%/°C
|
|
The response time
|
10(default,20,50,100,200,500,1000 can be set up)
|
ms
|
|
Working power
|
8~24VDC,50mA
|
|
|
Output way
|
Linear:RS232/RS485analog voltage0.5~4.5VDC
|
|
|
Maximum flow pressure loss
|
100
|
600
|
Pa
|
|
Maximum working pressure
|
≤0.5
|
MPa
|
|
Working temperature
|
-10+55
|
°C
|
|
Storage temperature
|
-20+65
|
°C
|
|
Working humidity
|
<95%RH(no ice,no frost)
|
|
|
Mechanical interface
|
BSPT1/4(R1/4,4mm,6mm,8mm Fast interface
|
BSPT1/4(R1/4)
|
|
|
Calibration mode
|
Air(20°C,101.325kPa)
|
|
|
Weight
|
50(including BSPT 1/4(R1/4)interface),69(including 4mm,8mm fast interface,66(including 6mm fast interface)
|
g
|
|
Maximum allowable flow
|
30
|
200
|
SLPM
|
|
Maximum allowable flow change
|
4
|
30
|
SLPM/sec
|
Remark:1.The analog output is the standard output of the sensor, and users can choose RS232 or RS485 output according to different demands.
2.The above parameters at 20 ° C, 101.325 kPa measured.
Product selection
*The unit of maximum flow is SLPM,for example 5 represents maximum flow of 5SLPM;
For co2 and laughing gas, the maximum flow of FS4003 is 2，3，4instead of 5,and the maximum flow of FS4008 is10,20,30,40 instead of 50.
*The sensor's standard output is analog voltage, and RS232 and RS485 are options.
