SH2188 Diffusion silicon absolute pressure transmitterDetailed product description：

The SH2188 diffusion silicon absolute pressure transmitter consists of a piezoresistive sensor and a signal conversion module. The core component of the sensor is a single crystal silicon wafer. When the single crystal silicon wafer is compressed, its resistivity changes. Four resistors are diffused on the silicon wafer through semiconductor planar technology and connected to form a bridge. Under constant current, it can output a voltage signal proportional to the pressure signal. The signal conversion module processes the voltage signal of the sensor and converts it into a 4-20mA standard signal.
The SH2188 pressure transmitter can be used to measure the pressure, liquid level, and other parameters of fluids (liquids, gases, and vapors), and convert the measured signal into a 4-20mA standard signal output. This output can be used as an input signal for indication, recording, and regulation. The SH2188 pressure transmitter has the advantages of small size, light weight, high accuracy, and low price. It can be equipped with on-site indicator meters, zero point migration, range expansion, and other functions. It is intrinsically safe and explosion-proof, and has all the functions of an industrial pressure transmitter.
Object of use:
liquid
Gas or steam
Range: 2:0-0.02MPa to 0.1MPa
3：0-0.1MPa ～ 0.5MPa
4：0-0.2MPa ～ 1MPa
5：0-1MPa ～ 5MPa
6：0-2MPa ～ 10MPa
7：0-10MPa ～ 50MPa
Output: 4-20mA DC
Working power supply: 12-36V DC
Output indication accuracy: ± 2%
Migration:
The transmitter can be used as a zero shift of 50% of the calibration range, but the upper limit of the calibration range must not exceed the upper limit range. Negative transfer is not allowed
Overvoltage:
Twice the range limit
(Except for the range of 7:0-50MPa, which is 1.5 times)
Working temperature range: -25 ℃ to+80 ℃
Storage temperature range: -40 ℃ to+120 ℃
Humidity range: 0-100% relative humidity
Start time: 2 seconds, no preheating required
Accuracy
± 0.20% of the measuring range
Including linearity, variation, and repeatability
Temperature effect: The zero position temperature error is 0.75% of the maximum range/55 ℃
The comprehensive temperature error is 1.1% of the maximum range/55 ℃
Vibration impact:
The vibration error caused by the vibration frequency up to 200Hz in any direction is 0.25%/g of the maximum measurement range
Time response: less than 0.2 seconds
Isolation membrane: 316SST
Sensor housing: 1Cr18Ni9Ti
Filling fluid: Silicone oil
Process connection port: optional according to selection information
Electrical connection: The connection holes for the electronic box are 1/2-14NPT taper tube screw holes,
The electrical connection terminal block is located on the wiring end side of the electronic box