FST500-201 electronic pressure switch uses an integrated alloy shell, the pressure connector can rotate freely in real time. The product is 

based on intelligent micro-controller, the collective signal values are linearity corrected and temperature compensated. With a 4-digit LED 

digital display, the actual pressure and on/off state can be displayed directly. The starting point and termination point can be easily set 

through panel buttons. The product is featured with high accuracy, high frequency response, strong resistance against interference, impact, 

overload, moisture-proof and good longterm stability, etc. It can be used in the pressure detection and monitor in industrial process.

Applicable Scope 

Gas-liquid dual-capable can be used in : pump control, storage tank monitor, liquid level control, filter blocking and monitor, leakage 

surveillance.

Industrial process testing and control

Self-controlled and constant-pressured water supply in building

Petrochemical, environmental protection, water conservancy, light industry, machinery, metallurgy

Measuring and control in other systems 

Pressure type: gauge pressure, absolute pressure.

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

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

Technical Index

Accuracy: ±0.5%FS  ±1%FS

Pressure Adjust: 0%~100%FS

Hystersis adjust:0%~100%FS

Control Output Relay:normal open/normal close(0.5A/250VAC)

Supply voltage: 12~30VDC

Medium Temperature:-30°C~+85°C

Environment Temperature: -20°C~+85°C

Longterm Stability(one year):±0.1%FS

Overload:200% FS

Temperature Drift:±0.1%FS/10°C

Migration:Zero can be shift

Display:4-digit LED digital display, can rotate freely within 270 degrees.

Housing:Precision die-casting zinc alloy, spray-paint surface.

Connection: 316Lstainless steel

Pressure connection:M20×1.5  G1/4  1/4 NPT(male) or custom-made

Electrical connection: Four/five-core shielded cable (IP65),aviation connector

Hunan Firstrate Sensor Co., Ltd.

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

firstsensor(at)foxmail(dot)com