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The CP235 143-235-000-012 is a highly reliable piezoelectric dynamic pressure transducer. It serves hazardous, potentially explosive environments such as gas turbines, delivering exceptional stability and minimal acceleration sensitivity across an extremely wide temperature range.
Acceleration compensated
Designed for use in gas turbines
Certified for use in potentially explosive atmospheres
The use of man-made piezoelectric material in the CP 235 dynamic pressure transducer makes it an extremely stable and reliable device. The transducer is applicable to either long-term monitoring or development testing. It has been specially designed to minimise sensitivity to acceleration. It is fitted with an integral mineral insulated (MI) cable with twin conductors that is terminated with a Vibro-Meter high-temperature connector. Engineered for extreme environments, the CP235 143-235-000-012 is widely utilized for monitoring pressure pulsations in gas turbine combustors and harsh industrial machinery.
It operates seamlessly across a wide temperature range from −55°C to 520°C and delivers an exceptional frequency response of 2 Hz to 10,000 Hz. Featuring a remarkably high sensitivity of 750 pC/bar, this transducer guarantees precision in identifying dynamic pressure changes. Furthermore, the unit features a hermetically welded Inconel 600 housing and holds global hazardous area certifications—including ATEX, IECEx, and NEPSImaking it an ideal, safe choice for potentially explosive atmospheres.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Vibro Meter CP235 143-235-000-012 Piezoelectric Pressure Transducer Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Power Generation
Monitoring combustion chamber pulsations and instabilities (humming) in heavy-duty gas turbines to prevent flame-out or catastrophic structural damage.
Aerospace & Aviation
Capturing dynamic pressure fluctuations in the combustors and exhaust sections of aircraft propulsion systems during development testing and altitude simulations.
Oil & Gas
Detecting high-frequency pressure waves and aerodynamic turbulence inside the large-scale compressors used for gas liquefaction to avoid surge conditions.
Marine Propulsion
Real-time tracking of pressure variations in heavy marine gas turbines and dual-fuel engines to optimize combustion efficiency and ensure continuous operation at sea.
Petrochemical Processing
Measuring rapid dynamic pressure changes inside high-temperature cracking furnaces where volatile, potentially explosive hydrocarbons are processed.
Chemical Engineering
Tracking violent, exothermic pressure spikes in high-pressure polymerization reactors to ensure batch stability and trigger automatic safety shutdown loops.
When using the Vibro-Meter CP235 143-235-000-012, ensure strict adherence to the minimum bending radius of the integral mineral insulated cable to prevent conductor damage, and keep all high-temperature connectors free from moisture and contaminants to maintain critical insulation resistance.
Additionally, verify precise mechanical torque during installation to guarantee accurate calibration, route cables away from strong electromagnetic interference, and validate that the environment complies with the transducer's specific hazardous area and explosion-proof certifications.
The CP235 143-235-000-012 is a self-generating, charge-output dynamic pressure transducer that requires no external input power. Inside the device, a two-pole system insulated from the casing is used, featuring a resonant frequency greater than 55 kHz along the sensitive axis and a stable response within a frequency range of 2 to 10,000 Hz with a variance of no more than ±5%. At 2 Hz, the nominal charge sensitivity of the sensor is at least 750 pC/bar, supporting a static pressure environment of 0.1 to 20 bar, with a dynamic measuring range covering pressure pulsations from 0.00005 to 5 bar. Over the full dynamic measuring range, the linearity error is maintained at a very low level of ≤ ±1%, and the device possesses an overload capacity of up to 100 bar for combined static and dynamic components. Furthermore, the device has a very low acceleration sensitivity to lateral and axial mechanical vibrations, effectively preventing interference from mechanical noise.
This is a piezoelectric dynamic pressure transducer manufactured by Meggitt Vibro-Meter, used for measuring gas pulsations and pressure fluctuations in high-temperature, harsh environments.
Does this CP235 143-235-000-012 require external input power?
No. It is a self-generating transducer that directly produces a charge signal output through the pressure-induced deformation of its internal piezoelectric crystals.
What are the dynamic range and static pressure limits for CP235 143-235-000-012?
Its standard static pressure environment is 0.1 to 20 bar, and its dynamic pressure pulsation measuring range covers 0.00005 to 5 bar.
Will the CP235 143-235-000-012 be damaged by sudden pressure spikes?
It has a high overload capacity, with a maximum combined limit of up to 100 bar for both static and dynamic components.
How is the electrical insulation of the CP235 143-235-000-012 configured?
Internally, it utilizes a two-pole system insulated from the casing, completely isolating the signal pins from the housing to help block ground loop interference.
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