CCT pressure/temperature sensor

For air-conditioning systems with heat pumps

The CCT pressure/temperature sensor is used in air-conditioning systems – especially in vehicles with alternative drives – as well as in heat pumps. The specially developed thermoreceptors allow a fast response time in flowing fluids and ensure a high degree of temperature accuracy.

The design stands out for its small size and minimal weight, making it easy to integrate and particularly suitable for lightweight systems. With the specific evaluation electronics, the pressure and temperature signal is made available via a digital single-wire interface (LIN).

Thanks to the fully automated assembly, large quantities can be produced cost effectively.

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FIELDS OF APPLICATION
  • Air-conditioning system in motor vehicles with alternative drives
  • Heat pump
FEATURES

Specially developed thermoreceptors

  • Fast response time in moving fluids
  • High temperature accuracy

Tried-and-tested stainless-steel measuring element

  • Excellent long-term stability
  • Good compatibility with fluids

Small size

  • Very easy to integrate
  • Support for lightweight-construction concepts

Application-specific evaluation electronics

  • Tried-and-tested automotive EMC/ESD resistance
  • Extended diagnostic and protective functions
  • Verified LIN 2.1 conformity with sleep mode
  • Pressure and temperature signal available via digital single-wire interface (LIN)

Fully automated assembly

  • Cost effective
  • Large quantities can be implemented
TECHNICAL SPECIFICATION
Pressure ranges
Rated pressure 0-10 to 0-100 bar
Overpressure 2x rated pressure
Bursting pressure 3x rated pressure
Pressure type Relative
 
Electrical characteristics
Supply voltage 9-16 V
Current consumption max. 10 mA
Output signal LIN 1.3/ LIN 2.1
 
Mechanical characteristics
Measuring element Stainless-steel cell with
resistive measuring bridge
Housing material Aluminium
Pressure connection Wrench size 24, M10×1
Thread Male thread 1)
Electrical connection RD plug, 4-pin 1)
Installation position Any
Weight approx. 25 g
 
Accuracy
Total pressure error 2)
± 0.5 % FS (0–90 °C)
± 1 % FS (-40–125 °C)
Total temperature error 3) ± 1K
Response time (t90) 3 sec 3)
 
Environmental conditions
Rated temperature range -40–125 °C
Fluid temperature range -40–150 °C
Fluid compatibility R134a, PAG oil, HFO1234yf 4)
 
1) Other pressure connections and electrical connections available on request
2) Includes repeatability, hysteresis, non-linearity (TBL), calibration and temperature effects; depending on pressure and temperature range
3) Depending on installation situation
4) Available on request

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