PTM303 Pressure Senseor

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The pressure sensitive core of PTM303 economic pressure transmitter adopts diffused silicon core, and the special integrated circuit inside converts the sensor millivolt signal into standard current signal, which can be directly connected with computer interface card, control instrument, intelligent instrument or PLC, etc.

Small size, light weight, all stainless steel sealed structure, can work in corrosive environment.

This product is convenient and simple to install, with high vibration and impact resistance, widely used in process control, aviation, aerospace, automotive, medical equipment, HVAC and other fields.


1. 316L stainless steel isolation diaphragm structure

2. High precision, all stainless steel structure

3. Small size and light weight

4. Strong anti-interference and long-term stability

5. Diversified form and structure, convenient installation and use

6. Wide measuring range, can measure absolute pressure, gauge pressure and sealing reference pressure

7. Vibration and impact resistance

8. Zero, full range adjustable

Electrical parameters

Scale   range-100kPa…0~10kPa…100MPa
Pressure   typeGauge pressure, absolute pressure, sealing pressure
Power supply4~20mA、0~5V、1~5V、0~10V、1~10V  (12~30VDC)
0.5~4.5V  R/M(5VDC)
Accuracy2%FS (range -5 ~ 5kPa)
0.5% FS (the rest)
Hysteresis and repeatability0.1%FS
Temperature drift1.5%FS(-20℃~85℃)
Response time≤1ms(Rise to 90%FS)
Pressure overload150%FS(≤60MPa),120%FS(60~100 MPa)
Service life≥10×106  Pressure cycle
Environment temperature-20℃~80℃
Medium temperature-30℃~105℃
Storage temperature range-40℃~85℃
EMC interferenceIEC  61000-6-33
EMC immunityIEC  61000-6-22
Insulation resistance≥1      /500VDC(200MΩ/250VDC)
Vibration resistanceSine curve :20g,25Hz ~ 2kHz;IEC 60068-2-6
Random: 7.5 GRMS,5Hz   ~ 1kHz;IEC 60068-2-64
ImpactImpact: 200g/1ms;IEC 60068-2-27
Free fall: 1m;IEC   60068-2-32
Protection gradeIP65
Medium compatibleCompatible with 316L stainless steel
Net weight150~180g
Explosion-proof gradeSafety explosion-proof Exia Ⅱ Ⅱ CT6 (only for 4 ~ 20   ma)
Six-party sizeHEX27

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