summary
The pressure transmitter uses high-precision and highly stable pressure sensor components from international companies. Through highly reliable amplification circuits and precise temperature compensation, the pressure of the tested medium is converted into standard electrical signals such as 4-20mADC, 0-5VDC, 0-10VDC, and 1-5VDC. The high-quality sensor, exquisite packaging technology, and perfect assembly process ensure the excellent quality and performance of the product. This product has multiple interface forms and lead wire methods, which can meet the needs of customers to the maximum extent and is suitable for the matching use of various measurement and control equipment.
working principle
When the pressure signal acts on the sensor, the pressure sensor converts the pressure signal into an electrical signal, which is amplified by a differential amplifier and an output amplifier. Then, it is converted into a 4-20mA standard current output signal linearly corresponding to the liquid level pressure of the measured medium (liquid) through V/A voltage and current.
characteristic:
Small size, high cost-effectiveness, high stability, and high sensitivity
0-0.1MPa to 0-250MPa
Strain gauge sensor diffused silicon sensor ceramic piezoresistive sensor optional
Stainless steel structure
Multiple range options, convenient for user debugging
Option with zero/full range adjustment
Pressure type: gauge pressure, absolute pressure, vacuum
Accuracy: Level 1.0, 0.5, 0.25, 0.1
Small integrated LCD display and meter head with switch output can be selected
Laser marking can be used to ensure product traceability
Application:
Hydraulic and pneumatic control system
Liquid level measurement and control
Petrochemical, environmental protection, air compression
Power station operation inspection and locomotive braking system
Thermoelectric unit
Light Industry, Machinery, Metallurgy
Building automation and constant pressure water supply
Other automatic control and detection systems
Industrial Process Testing and Control
Laboratory pressure calibration
Technical parameters:
Measurement media compatible with various liquids, gases, or vapors of 304/316 stainless steel
Measurement range: gauge pressure 0-0.01MPa to 0-250MPa, absolute pressure 0-0.1MPa to 0-250MPa, vacuum 0-0.1MPa
Overload pressure 2 times full scale or 300MPa (whichever is smaller)
Output signal 4-20mADC (two wire system) 0-10VDC, 0-5VDC, 1-5VDC, 1-10VDC (three wire system)
Power supply voltage 9-36VDC (two wire system), 24 ± 5VDC (three wire system)
Medium temperature -30~85 ℃
Environmental temperature -20~85 ℃
Storage temperature -40~90 ℃
Relative humidity ≤ 95% (40 ℃)
Rise time ≤ 5 milliseconds up to 90% FS
Accuracy level 1.0, 0.5, 0.25 (including comprehensive errors of nonlinearity, repeatability, and hysteresis)
Zero adjustment output range ± 8%
Range adjustment ± 20% of output range
Temperature drift ≤ ± 0.05% FS/℃ (temperature range -20~85 ℃, including temperature effects of zero and span)
Temperature compensation range 0-70 ℃
Typical stability: ± 0.1% FS/year: ± 0.2% FS/year
Medium contact material 316 stainless steel/304 stainless steel
Housing material 304 or 316 stainless steel
Installation method: threaded installation
Pressure connection M20 × 1.5、M12 × l. Gl/4, Gl/2 male thread, etc
Electrical connection four core shielded cable (protection level IP65) aviation plug DIN connector