The intelligent pressure transmitter is an advanced pressure measurement and signal conversion device with intelligent and multifunctional characteristics. It converts the pressure of the medium to be measured into a standard electrical signal output and offers a variety of additional functions and intelligent features.
When the pressure directly acts on the surface of the measuring diaphragm, the diaphragm produces a small deformation. The high-precision circuit on the measuring diaphragm transforms this small deformation into a highly linear voltage proportional to the pressure and proportional to the excitation voltage. Signal, and then use the chip to convert this voltage signal into an industry standard 4-20mA current signal or 1-5V voltage signal.
Since the measuring diaphragm adopts standard integrated circuits and contains linearity and temperature compensation circuits inside, it can achieve high precision and high stability. The two-wire chip used in the transmission circuit can ensure the output of a two-wire 4-20mA current signal.
The pressure transmitter selects sputtering thin film sensor, imported silicon diffusion type, ceramic pressure sensor as the sensitive element, and adopts a dedicated integrated module. After fine temperature drift, zero point, and nonlinear compensation, it can realize the control of liquid level, gas, and steam. Accurate measurement and transmission of pressure changes of other media. Realize ideal monitoring of pressure vacuum in various places in industrial and mining enterprises, scientific research institutes and other departments.
Measuring medium | Gas, liquid, oil and other media compatible with 316 |
Measurement form and range | Gauge pressure---maximum (0~60)MPa, minimum (0~0.5)KPa |
Absolute pressure---maximum (0~40)MPa, minimum (0~5)KPa | |
Negative pressure --- (-0.1~40)MPa, minimum (-0.2~0.2 )KPa | |
Accuracy class | 0.1、 0.25、 0.5 |
Overload capacity | 2~5 times the range |
Long-term stability | Less than 0.25%FS/year, less than 0.5%FS/year |
Power supply | 15~36 VDC (rated voltage 24VDC) |
output signal | (4~20)mA (two/three wire system), (0~10/20)mA |
(0~5)V、(1~5)V、(0~10)V | |
Display method | Pointer head or digital display optional |
calibration | Adjust the zero point and range by adjusting the precision potentiometer |
Working temperature: (-40~80)℃ Compensation temperature: (-20~70)℃ | |
Operating temperature | -40~80℃ Compensation temperature: -20~70℃ |
Process connection | M20×1.5 external thread (Ф3 inner hole) or user specified |
Isolation diaphragm material | 316 stainless steel |
Sensor interface material | 1Cr18Ni9Ti |
Shell material | Aluminum alloy |
Protection level | IP65 |