FST800-401 pressure transmitter applied in the engineering machinery industry is a silicon MEMS strain gauge sensor which is glass bonded 

to a stainless steel diaphragm. It is designed by aiming at the hydraulic application for serious medium problems (e.g. air pocket, liquid 

hammer or pressure peak value) in the heavy industry. Its pressure chamber is made of 17-4PH stainless steel in an integrated way without 

welding seams or O-rings and free of leakage troubles. Digital circuits capable of strong RFI & EMI resistance and automatic temperature 

compensation are installed inside the transmitter and the transmitter is featured with the resistance against impact, overload, shock & 

erosion, the wide working temperature scope and the longterm stability, etc. The series products provide several optional pressure 

connections and electric connections for customers.

Product Features

Advance Microfused Silicon Strain Gauge, whole-designed elastomer, free of leakage troubles

Impulse damper installed inside

Advanced interference-resistant and surge-proof circuit protection

Excellent resistance against impact, overload, shock and erosion

Advanced digital temperature compensation and wide working temperature scope

High accuracy, high frequency response and longterm stability 

Applicable Scope

Industrial course measuring and control

Supporting facilities for the heavy industry

Industrial machinery manufacture and control

Technical Indexes: 

Pressure Type: gauge pressure  absolute pressure  sealed pressure

Pressure Range(bar):1 1.6 2.5 4 6 10 16 25 40 60 100 160 200 250 300 400 500 600 750 1000 1500

Pressure Range(psi):15 30 50 75 100 200 300 500 750 1K 1.5K 3K 5K 10K 15K 20K

Technical Index

Signal Output :4~20mA    0.5~4.5VDC  0~5VDC      0~10VDC

Signal Line Specification:2wire       3wire        3wire         3wire

Supply Voltage :9~30VDC   5VDC       9~30VDC     15~30VDC

Accuracy:±0.1%FS  ±0.3%FS  ±0.5%FS

Zero Drift:±0.02%FS/°C

Thermal Sensitivity Shift:±0.02%FS/°C

Longterm Stability (1 Year):±0.1%FS

Frequency Response (-3dB):3.2kHz

Compensated Temperature:-20~+85°C

Working Temperature:-40~+125°C

Storage Temperature:-40~+125°C

Overload Pressure:300% FS

Burst Pressure:500% FS

Mechanical Vibration:±20g

Impact (11ms):100g

Environmental Protection:IP65

Wetted Parts:17-4PH

Electromagnetic compatibility(EMC):EN61000-6

Certificates:CE   RoHS

Hunan Firstrate Sensor Co., Ltd.

Tel: 0086-731-86171990  Fax: 0086-731-86205777

firstsensor(at)foxmail(dot)com