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.
Features:
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
Scale range | -100kPa…0~10kPa…100MPa | |||||||
Pressure type | Gauge pressure, absolute pressure, sealing pressure | |||||||
Power supply | 4~20mA,0~5V,1~5V,0~10V,1~10V (12~30VDC) | |||||||
0.5~4.5V R/M(5VDC) | ||||||||
Accuracy | 2%FS (range -5 ~ 5kPa) | |||||||
0.5% FS (the rest) | ||||||||
Hysteresis and repeatability | 0.1%FS | |||||||
Temperature drift | 1.5%FS(-20ºC~85ºC) | |||||||
Response time | ≤1ms(Rise to 90%FS) | |||||||
Pressure overload | 150%FS(≤60MPa),120%FS(60~100 MPa) | |||||||
Service life | ≥10×106 Pressure cycle | |||||||
Environment temperature | -20ºC~80ºC | |||||||
Medium temperature | -30ºC~105ºC | |||||||
Storage temperature range | -40ºC~85ºC | |||||||
EMC interference | IEC 61000-6-33 | |||||||
EMC immunity | IEC 61000-6-22 | |||||||
Insulation resistance | ≥1 /500VDC(200MΩ/250VDC) | |||||||
Vibration resistance | Sine curve :20g,25Hz ~ 2kHz;IEC 60068-2-6 | |||||||
Random: 7.5 GRMS,5Hz ~ 1kHz;IEC 60068-2-64 | ||||||||
Impact | Impact: 200g/1ms;IEC 60068-2-27 | |||||||
Free fall: 1m;IEC 60068-2-32 | ||||||||
Protection grade | IP65 | |||||||
Medium compatible | Compatible with 316L stainless steel | |||||||
Net weight | 150~180g | |||||||
Explosion-proof grade | Safety explosion-proof Exia II II CT6 (only for 4 ~ 20 ma) | |||||||
Six-party size | HEX27 |
Application
Convenient and simple installation, with high vibration and shock resistance, widely used in process control, aviation, aerospace, automotive, medical equipment, HVAC and other fields.

SELECTION OF DAMPER
• Cavitation, liquid hammer and pressure spikes can occur in air or liquid systems with varying flow rates. Examples include quick closing of valves or starting and stopping of pumps.
• These problems can occur at the inlet and outlet, even at fairly low operating pressures.
• The effect of medium viscosity on response time is small. Even if the viscosity reaches 100 CST, the response time will not exceed 4ms.
NOTE: 1: G gauge pressure, A absolute pressure, S seal pressure.
2: Use a non-oil-filled pressure sensor. The measurement medium must be pure gas.

The series is PTM303, range is 0 ~ 35kPa, pressure type is gage pressure, output signal is 4-20mA, thread interface is G1 / 4, and electrical connector is Big Hirschmann.

