ST302 compact Pressure transmitter using high-precision, high-stability chips use advanced circuit linearity and temperature compensation technology, making better linearity, lower temperature drift coefficient, stronger anti-interference. Its shell is made of all stainless steel refined, compact structure, reliable, strong anti-interference. Widely used in aerospace, communications, water, oil, chemicals, power and other fields and laboratories. 
Features: 
Improve the compensation circuit, good linearity, measurement accuracy, good long-term stability. 
Zero error is small, accuracy up to 0.1%. 
Zero, full points can be adjusted continuously on the outside, wide-range scope of the migration. 
With reverse polarity protection and current limit protection. 
Anti-surge, anti-RF interference, applicable to other strong frequency interference industrial environments. 
High-resolution, high-impedance, low power consumption. 
Fine small size, easy installation. 
4 ~ 20mA output signal of non-polarity connection. 
Wide measuring range: maximum 300MPa, minimum 0.2KPa. 
Impact design.

Technical Parameters 
Measuring media: 316L all kinds of non-corrosive gas liquids and the like 
Survey styles: absolute pressure (A), relative pressure (G) 
Working temperature: -40 ~ 65 ℃ 
Compensation temperature: -10 ~ 70 ℃ 
Drift coefficient: ± 0.01% FS / ℃ 
Comprehensive Accuracy: 0.1, 0.2, 0.5 
Stability: less than 0.2% FS / years, 0.5% FS / Year 
Overload: 1.5 to 3 times FS 
Power supply voltage: 24VDC 
Select Output: 4 ~ 20mA, 0 ~ 10mA, 0 ~ -5V, 1 ~ 5V 
Protection: IP65

Overall Structure 
Electronic housing: Hirschmann connector 
The main structure: stainless steel 
Pressure connection: M20 × 1.5 (standard interface) M27 × 2 (flush diaphragm standard interface) 

The connection process 
External thread connection M20 × 1.5 standard interfaces, bore Ф3mm, Ф10mm, 
Connecting member 316 or 304 stainless steel material.

Relative pressure measuring absolute pressure in the form of negative relative pressure 
The maximum measuring range (0 ~ 300) MPa (0 ~ 100) MPa (-0.1 ~ 60) MPa 
The minimum measurement range (0 ~ 100) Pa (0 ~ 10) KPa (-50 ~ 50) Pa