FirstRate FST800-4001 Hydraulic Pressure Transmitter Sensor, 0~600 Bar, 4~20 mA Output, 9~30 V DC, G1/4 Male Port, M12 Connector

The FST800-4001 uses a standard 2-wire current loop. You connect the positive supply voltage (9-30V DC) to the positive terminal via the M12 connector, and the 4-20mA signal is drawn from the same positive line through the sensor. The return wire completes the loop to your PLC or data logger's analog input, which typically includes a precision resistor to convert the current to a voltage.

Yes. The sensor's wetted parts, including the pressure port and diaphragm, are constructed from corrosion-resistant stainless steel. The monolithic, weld-free elastomer design provides excellent resistance to a wide range of media, including standard hydraulic oils and many industrial gases. Always verify chemical compatibility for specific aggressive media.

The operating temperature range (-10°C to +70°C) refers to the ambient environment where the sensor's electronics are calibrated and perform within specification. The media temperature range (-40°C to +125°C) refers to the temperature of the fluid or gas being measured at the pressure port. The sensor can withstand this wider media range, but accuracy is guaranteed within the compensated operating temperature limits.

No. The FST800-4001 is specifically a gauge pressure sensor, meaning it measures pressure relative to the local atmospheric pressure. It is calibrated with the vented side of the sensing diaphragm referenced to ambient air. It cannot measure absolute pressure (referenced to a perfect vacuum) or differential pressure between two separate fluid lines.

No. An IP67 rating indicates the sensor is protected against dust ingress and can withstand temporary immersion in water up to 1 meter for 30 minutes. It is not designed for continuous, long-term submersion or high-pressure water jets. For permanently submerged applications, a sensor with a higher IP rating (like IP68 or IP69K) and appropriate sealing materials would be required.