PTM pressure-sensor module

For system integration

The pressure-transmitter module (PTM) takes into account the general trend towards miniaturisation and cost effectiveness. Thanks to their optimised size, PTM-series sensors can be used easily and flexibly in applications where installation space is critical.

In addition, the modular design – which features numerous possibilities for electrical and mechanical interfaces – also permits simple integration into existing customer systems.

The use of a high-precision evaluation circuit directly on the ceramic pressure cell makes it possible to output a temperature-compensated analogue or digital signal. Stable and accurate measurements are achieved over a wide temperature range, even under harsh conditions.

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  • Integration into control units for
    • Braking systems
    • Clutches
  • Mobile hydraulics
  • Pneumatic systems

Compact size

  • Cost effective
  • Can be integrated into applications where space is critical

Integrated evaluation electronics

  • Stable and accurate measured values over a wide temperature range
  • Customer-specific output signal, temperature-compensated (analogue, LIN)
  • Diagnostic and protective functions

Variety of electrical and mechanical connections available

  • Easy adaptation into existing systems

Ceramic measuring element

  • Very good fluid compatibility
Measurement range
Nominal pressure 10–100 bar
Over pressure 2× nominal pressure
Burst pressure 3× nominal pressure
Electrical characteristics
Supply voltage 5 V
Output signal 0.5–4.5 V (ratiometric)
Overvoltage protection up to 33 V
Polarity-reversal resistance up to 33 V
Mechanical characteristics
Measuring element Ceramic cell with resistive measuring bridge
Pressure connection As per customer requirements
Electrical connection Flex conductor connection, stranded wire, solder contacts 1)
Installation position Any
Weight approx. 5 g
Total error 2)
± 0.5 % FS (25 °C)
± 1 % FS (0–90 °C)
± 3 % FS (–40–125 °C)
Environmental conditions
Operating temperature range –40–125 °C
Media temperature range –40–125 °C
Media compatibility Hydraulic oils, ATF, exhaust gas, brake fluid
1) Other connections available on request
2) Includes repeatability, hysteresis, non-linearity (TBL), calibration and temperature effects

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