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XRT explosion-proof industrial pressure transmitter is a high-precision, high-stability silicon piezoresistive pressure sensitive element. Its electrical working principle is to form a Wheatstone bridge on a silicon substrate by ion implantation and laser correction. The external pressure acts on the isolation diaphragm of the sensor to cause the diaphragm to displace, and the pressure is transmitted to the silicon substrate through the silicone oil in the diaphragm box, so that two of the four resistors of the Wheatstone bridge have a smaller resistance due to stretching, and the other two have a larger resistance due to compression. The change in the resistance of the bridge arm causes the bridge to lose balance, thus generating a voltage output signal proportional to the pressure.
SpecificationsProduct Name: High-precision Explosion-proof Industrial Pressure Transmitter
Model: XRTB102
Measuring Medium：Liquid, Gas or Steam
Pressure Type: Gauge, Absolute or Sealed Gauge
Gauge Pressure Range: (-100～0) kPa, (0～10) kPa to (0～100) MPa
Absolute Pressure Range: (0～70) kPa to (0～35) MPa
Overload Pressure: 150%FS
Accuracy：±0.5%FS,±0.25%FS
Supply Voltage: 9～36VDC (standard), 12～30VDC (standard with display or 0～10VDC output)
Custom Range: 3～5VDC (output 0.5～2.5VDC / RS485)
Output Signal: 4～20mA、0～10VDC、0.5～4.5VDC、0.25～2.5VDC
Compensated Temperature: -10～70°c
Storage Temperature：-40～120ºC
Working Temperature: -30～85ºC(General type);-20～60ºC(Explosion-proof type);-10～60ºC(Intrinsic safety type)
Resistance：≤((U-12)/0.02) Ω (where U is the supply voltage) or >10KΩ
Insulation Resistance: 100MΩ@ 50VDC
Temperature Coefficient of Zero: ±0.03%FS/ºC(Reference 25ºC)
Temperature Coefficient of Span: ±0.03%FS/ºC(Reference 25ºC)
Long-term stability: +0.2%FS/year
Response Time: ≤1ms (up to 90% FS)
Material: Shell aluminum alloy;Internal sensor 316L
Protection level: IP65
Electrical Connection:DIN43650 or M12×1 or Cable Outlet
Process Connection:G1/4″, NPT1/4″
Explosion-proof Marking: Ex db IIC T6 Gb; Ex tb IIIC T80°C Db
Zone 1 and Zone 2 places where explosive mixtures formed by mixing flammable gases, steam and air in categories IIA, IIB, IIC, and T1 to T6 groups exist
In an environment with explosive dust
In a place without significant shaking and impact vibration
