The climate-control pressure transmitter (CCT) was devel-
oped specifically for measuring the pressure of refriger-
ants 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 stain-
less-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 provi-
sions regarding EMC and ESD.
Fields of application
• Climate control in HFO 1234yf and R134a systems
• Compressor protection
Product description
CCT pressure sensor
For automotive air-conditioning systems
Features
Specially designed stainless-steel measuring
element
• Excellent long-term stability
• High 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
April 2022
Technical Specifications
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 signals 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 error ± 0.5 % FS (0–90 °C)
± 1 % FS (−40–125 °C)
2)
Environmental conditions
Operating tem-
perature range
−40–125 °C
Media tempera-
ture 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 tempera-
ture range
i2s – Intelligente Sensorsysteme Dresden GmbH: Zur Wetterwarte 50, 01109 Dresden, Germany
Phone +49 (0) 351 88596–0 | sales@i2s-sensors.de | www.i2s-sensors.de
CCT pressure sensor
For automotive air-conditioning systems
Dimensions
April 2022