CCT pressure sensor

For automotive air-conditioning systems

The climate-control pressure transmitter (CCT) was developed specifically for measuring the pressure of refrigerants in motor vehicles.

The hermetically sealed and robust aluminium housing makes this sensor a cost-effective solution for automotive air-conditioning systems. Thanks to its high-quality stainless-steel measuring element, the CCT is compatible with a wide range of fluids. Its innovative evaluation electronics reliably deliver high-precision measurements over a wide temperature range, using LIN or analog interface.

Specifically tailored to the requirements of the automotive industry, the CCT also complies with the current provisions regarding EMC and ESD.

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FIELDS OF APPLICATION
  • Climate control in HFO 1234yf and R134a systems
  • Compressor protection
FEATURES

Specially designed stainless-steel measuring element

  • Excellent long-term stability
  • Good compatibility with fluids

Application-specific evaluation electronics

  • Tried-and-tested automotive EMC/ESD resistance
  • Extended diagnostic and protective functions
  • Verified LIN 2.1 conformity with sleep mode

Tried-and-tested aluminium housing

  • Corrosion resistant
  • Light weight
  • Cost effective

Variety of analogue and digital output signals available

  • Easy integration into existing systems
TECHNICAL SPECIFICATION
Measurement range
Nominal pressure 0–10 to 0–100 bar
Over pressure 2× nominal pressure
Burst pressure 3× nominal pressure
Pressure type Relative
 
Electrical characteristics
Supply voltage 9–16 V (LIN), 5 V±0.5 V (analog)
Current consumption max. 10 mA
Output signal LIN 1.3/ LIN 2.1
0.5 to 4.5 V (ratiometric)
 
Mechanical characteristics
Measuring element Stainless-steel cell with
resistive measuring bridge
Housing material Aluminium
Pressure connection HEX 24, M10 × 1.25
Thread Female thread 1)
Electrical connection 3-pin RD plug 1)
Installation position Any
Weight Approx. 15 g
 
Accuracy
Total pressure error
 ± 0.5 % FS (0–90 °C)
± 1 % FS (–40–125 °C) 2)
 
Environmental conditions
Operating temperature range –40–125 °C
Media temperature range –40–140 °C (150 °C)
Media compatibility R134a, HFO 1234yf, PAG oil, POE oil
 
1) Other pressure and electrical connections available on request
2) Includes repeatability, hysteresis, non-linearity (TBL), calibration and temperature effects; depends on pressure and temperature range

Similar sensors

CCT pressure/temperature sensor

The CCT pressure temperature sensor is often used in heat pumps for climate control systems and in thermal management (battery), particularly in vehicles with alternative drives.

CCT high-pressure/temperature sensor

The CCT high-pressure temperature sensor was specially developed for the high pressures and temperatures in CO2 heat pumps (R744).

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