Pressure transmitter - hh2188

The 2188 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. Through semiconductor planar technology, four resistors are diffused on the silicon wafer 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 2188 pressure transmitter has the advantages of small volume, light weight, high accuracy, low price, and 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,