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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).

Categories: Dynamic pressure sensors, Sensors & signal conditioners

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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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