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FST700-201 Capacitance capacitive Oil Level Transmitter manufacturer

Product Description

 FST700-201 Capacitance Liquid level sensor tranmitter

Product Description

Product Introduction
 FST700-201 Capacitance Liquid level sensor tranmitter adopts a coaxial container, the capacitor consists of two coaxial electrodes: inner and outside electrodes. The capacitance  between the sensor housing (outside  electrodes) and sensoring electrodes (inside electrode) changes when the oil (liquid) is filled into the container, it output standard current, voltage, or digital signals. It can be used to testing various non-conductive liquid. 
Product Features
♦ Precise linear and temperature compensation
♦ Adjustable damp output time
♦ Strong interference resistance and shock resistance
♦ Surge, over-current and polarity resistant circuit design
♦ Applicable for various non-conductive liquid
Applicable Scope
♦ Liquid-level testing and control in industrial process
♦ Oil-level testing in automation gas tank, oil tanker, oil depot 
♦ Testing and control of  other non-conductive liquid
Standard Range                                   
Pressure Range(mm):300 500 700 1000 1500 2000
Probe diameter (mm): Φ16,Φ12
Technical Index
Analog Signal Output 4~20mA    0~5VDC      0~10VDC
Signal Line Specification 2wire       3wire         3wire
Supply Voltage 9~30VDC   9~30VDC     15~30VDC
Digital Signal Output RS232/485 MODBUS PROFIBUS CANBUS
Supply Voltage 12~30VDC 
Accuracy ±0.3%FS  ±0.5%FS  ±1%FS
Zero Drift ±0.05%FS/°C
Thermal Sensitivity Shift ±0.05%FS/°C
Longterm Stability (1 Year) ±0.1%FS
Frequency Response (-3dB) Typical:40bar(Max:300bar)
Probe Temperature Resistance -50~+200°C
Medium Compatibility Various media compatible with the 316L stainless steel
Environmental Protection IP65
Wetted Parts


Company Information

About Hunan Firstrate Sensor Co.,ltd

Hunan Firstrate Sensor Co.,ltd is a high-tech joint venture specialized in researching, manufacturing, and sales of sensors and transmitters. Our products include Pressure Sensors and Transmitters, Temperature Sensors and transmitters, Liquid-level sensors and Transmitters, Wind Speed & Direction sensor, and Intelligent Control Instruments. They are widely used in the field of aviation & aerospace, national defense & military project, engineering machinery, railway & urban railway system, automotive electronics system, HVAC, air compressor, textile, petrochemical, coal mines and other industrial automation control. 

More About Firstrate Company

Firstrate is committed to the research & development of international leading Microfused technology, adopts the Microfused Silicon Strain Gauge production technique ,CAN ( Controller Area Network) technology and wide temperature digital compensation data system. MEMS sensors have been recognized and highly praised by scientists and engineers from industrial automation. At present, our company has declared 12 national invention patents, 30 plus utility-model patents. And have got the certificates of CMC, CE, Safety & Flame-proof certification and ROHS. 

Our Certifications

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Buying Guide


· testing medium: water, oil air or... ?

· testing range ? 

· threaded screw?

· output signal?

· Electronic connection ?

· Whether need cable ?

· Accuracy ?

· supply volatge:


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