CCT high-pressure/temperature sensor
For air-conditioning systems with CO2 heat pump
The CCT high-pressure temperature sensor was specially developed for the high pressures and temperatures in CO2 heat pumps (R744). Such heat pumps are primarily used in thermal management in vehicles with electric drive (EV). Thanks to its robust stainless steel design, the sensor withstands the high pressures and temperatures in this application.
A digital single-wire interface (LIN) ensures reliable transmission of the pressure and temperature readings. The stainless steel pressure measuring element and the specially developed additional correction function for the temperature readings enable high measuring accuracy for pressure and temperature.
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- Air conditioning systems
- Heat pumps with the refrigerant CO2 (R744)
- Thermal management (battery) in EV
Robust design
- Stainless steel design for high pressure applications
- Special sealing concept to the system
Proven stainless steel measuring element
- Excellent long-term stability
- High fluid compatibility due to the welded design
Temperature measurement directly inside the medium
- Fast response time
- High temperature measurement accuracy is achieved through a special correction function
Application-specific evaluation electronics
- Pressure and temperature signal available via digital single-wire interface (LIN)
- Tried-and-tested automobile EMC/ESD resistance
- Extended diagnostic and protection functions
- Tested LIN 2.0 conformity with energy-saving mode (sleep mode)
Fully automated assembly
- Cost effective
- Large quantities can be produced
Measurement range | |
Nominal pressure | 0–10 to 0–200 bar |
Over pressure | 2× nominal pressure |
Burst pressure | 3× nominal pressure |
Pressure type | Relative |
Electrical characteristics | |
Supply voltage | 9–16 V |
Current consumption | max. 10 mA |
Output signal | LIN 2.0 |
Mechanical characteristics | |
Measuring element | Stainless-steel cell with resistive measuring bridge |
Housing material | Stainless steel |
Pressure connection | HEX 24, M18×1 |
Thread | Male thread |
Electrical connection | 3-pin MQS plug |
Installation position | Any |
Weight | Approx. 41 g |
Accuracy | |
Total pressure error | ± 0.5 % FS (0–90 °C) ± 1.5 % FS (–40–140 °C) |
Total temperature error | ± 1K 1) |
Response time (t90) | 3 sec 1) |
Environmental conditions | |
Operating temperature range | –40 °C–140 °C |
Media temperature range | –40–165 °C (180 °C) |
Media compatibility | R744 |
1) Depending on installation situation |
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