CP751 dynamic pressure sensor

  • Designed for the long-term measurement of pressure pulsation in extreme environments, such as gas turbine combustors.
  • Very high operating temperature: up to 700 °C.
  • Very high frequency response: up to 10000 Hz.
  • High sensitivity: >120 pC/bar.
  • Available in different integral mineral-insulated (MI) cable lengths, terminated with either a high-temperature connector or a LEMO connector.
  • Certified for use in potentially explosive atmospheres (Ex).
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Description

>120 pC/bar, −40 to 700 °C, 2 to 10000 Hz.

The CP751 dynamic pressure sensor (piezoelectric pressure sensor) is a high-quality, high-reliability dynamic pressure sensor with a piezoelectric sensing element that provides a charge output. Accordingly, an external charge amplifier (IPC707 signal conditioner), is required to convert this charge-based signal into a current or a voltage signal.

The CP751 is designed and built for long-term use in extreme environments characterised by high temperatures and/or hazardous areas (potentially explosive atmospheres).

Features

  • Designed for the long-term measurement of pressure pulsation in extreme environments, such as gas turbine combustors.
  • Very high operating temperature: up to 700 °C.
  • Very high frequency response: up to 10000 Hz.
  • High sensitivity: >120 pC/bar.
  • Available in different integral mineral-insulated (MI) cable lengths, terminated with either a high-temperature connector or a LEMO connector.
  • Certified for use in potentially explosive atmospheres (Ex).

Additional information

Output type

Charge (2-wire)

Sensitivity

9.4 pC/psi | 137 pC/bar nominal ±10%

Operating temperature range

−40 to 1292 °F | −40 to 700 °C

Frequency response

Up to 10000 Hz

Sensitivity deviation

–2 to 12% over operating temperature range (see response curve in data sheet)

Dynamic measurement range

0.0073 to 725.2 psi | 0.0005 to 50 bar

Overload capacity

Up to 5076 psi | Up to 350 bar

Linearity

±1%

Acceleration sensitivity

≤0.0029 psi/g | ≤0.002 bar/g (axial direction) and ≤0.0044 psi/g | ≤0.003 bar/g (all directions)

Resonant frequency

>50 kHz

Hazardous area certifications

Ex ia, Ex nA

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