Combined pressure and temperature sensor

Description

Kavlico has developed a combined pressure & temperature sensor for use with the natural refrigerant R744 (CO₂) for pressure & temperature sensing in mobile air conditioning systems. The sense element is based upon Kavlico’s patented TiON (Titanium OxyNitride) thin film technology which is capable of withstanding high media temperatures.

Technical Specifications

• Pressure measurement range: 0-180 bar
• Pressure measurement accuracy: < ± 1.0%
• Pressure measurement response time: ~4 ms
• Media temperature: ~40°C to +180°C
• Ambient temperature: ~40°C to +135°C
• Temperature measurement response time: < 10 sec
• Housing: 17-4 pH hermetically sealed stainless steel
• Digital output: LIN2.0 or PWM (temperature output embedded in signal)
• Design: metal-injection-molded (MIM)
• Thread interface: down to M10x1mm

Advantages

• High accuracy
• Short response times
• TION (Titanium OxyNitride) thin film technology able to resist high temperature pick-up as part of the pressure sensor element reduces the risk of medium leakage
• Long term stability
• Low-cost
• Smallest possible thread interface and less part complexity
• Reduced package size
• Integrated temperature pick-up as part of the pressure sensor element reduces the risk of medium leakage