Platinum resistance temperature sensor has high precision, good stability and wide application temperature range. It is the most commonly used temperature detector in medium and low temperature area (- 200-650 ℃), which is widely used in industrial temperature measurement.

When the pressure in the system is higher or lower than the rated safety pressure, the disc in the sensor moves instantaneously, and the switch connector is pushed to connect or disconnect through the connecting guide rod. When the pressure drops or rises to the rated recovery value, the disc resets instantaneously, and the switch resets automatically, or simply when the measured pressure exceeds the rated value, the free end of the elastic element displaces, Push the switching element directly or after comparison to change the on-off state of the switching element, so as to control the measured pressure.

The elastic elements used in the pressure switch include single coil spring tube, diaphragm, diaphragm box and bellows.

Diaphragm pressure switch is one of them.

Measuring medium: non corrosive gas or liquid to nitrile rubber or 316L stainless steel

Housing: die cast aluminum, epoxy coated, outer cover with sealing washer

Enclosure class: NEMA 4x

Set point accuracy: ± 1%

Switching difference: adjustable and non adjustable (refer to the data in the selection table)

Repeatability error: <1%

Pressure interface: Standard 1 / 2nptf internal thread; It can be customized according to the needs of the site

Electrical interface: 1 / 2 ″ NPTF threaded interface, which can be specially customized according to site needs

Switch output: a single pole double throw (SPDT) output; High standards can be set separately within the adjustment range; The switch can be connected to "normally open" or "normally closed"

Ambient temperature: - 40 ℃ ~ 70 ℃

Ambient humidity: 5% ~ 95%

Service life: 1 million cycles

Vibration resistance: enclosure protection grade: IP65

Explosion proof grade: ex de IIC T6, temp. = - 40 ~ 71 ℃ IP65

Rated load: 380V, high