CA134 144-134-000-613

CA134 144-134-000-613 is a Meggitt Vibra-meter high-temperature piezoelectric charge output single-axis acceleration sensor with a sensitivity of 10pC/g, a frequency response of 0.5 to 6000Hz, an operating temperature range of -54 to 500 ° C, and support for ATEX explosion-proof. Meet SIL2 application requirements. The airtight nickel alloy housing is equipped with an integrated MI mineral insulated armored cable. The differential output has strong anti-interference ability and can withstand short-term impact overload up to 1000g. It is widely used for online monitoring and fault diagnosis of high-temperature shell vibration in industrial gas turbines, turbines and compressors. It needs to be matched with an IPC707 charge amplifier

Core Functions

1. Measurement principle: Compression mode piezoelectric sensitive element, relying on the piezoelectric effect, outputs a charge signal proportional to the vibration acceleration, differential output, internal insulation of the housing

2 Vibration acceleration acquisition: Dynamic range 0.001 to 500 g peak; The peak value of short-term impact overload is up to 1000 g. Sensitivity: 10 pC/g (±5%, 120Hz).

3. Frequency response: 0.5Hz to 6000Hz, installation resonant frequency > 14kHz; The error is ±5% for 0.5-3500Hz and ±10% for 3500-6000Hz. It is suitable for broadband vibration monitoring of gas turbine rotors and casings.

4. Wide temperature range measurement: Standard model can operate continuously from -54 ℃ to +500℃. The low-temperature version can reach as low as -253 ℃ (20K), covering deep cold to high-temperature working conditions, and can withstand 520℃ for a short period of time.

5. Explosion-proof compliance: ATEX/IECEx explosion-proof certification, capable of long-term online vibration monitoring in flammable and explosive hazardous areas, meeting the application requirements of SIL2 measurement chains.

6. Airtight sealing structure: Fully welded sealing, corrosion-resistant and moisture-proof, equipped with an integrated mineral insulated MI armored double braided high-temperature cable CA134 144-134-000-613 is the version with a fixed MI cable.

Typical application scenarios

1. Industrial gas turbines: Online vibration monitoring at high-temperature measurement points of gas turbine shells and cylinders; Unit start-stop, vibration trend under variable load, fault early warning.

2. Aviation/ground gas engine test bench: High-temperature structural vibration, rotor dynamics test, combustion chamber shell vibration collection.

3. Large rotating machinery such as compressors and turbines: Vibration monitoring of bearing housings in high-temperature areas, and diagnosis of surge and friction faults.

4. Cryogenic equipment testing: Cryogenic pump and cryogenic turbine vibration testing in cryogenic environments.

5. Explosion-proof areas in petrochemical and coal chemical industries: Vibration protection and condition monitoring of high-temperature rotating equipment in hazardous gas environments.

Not applicable to: CA134 144-134-000-613 static acceleration, constant gravity measurement; Piezoelectric charge signals have leakage drift and are only suitable for dynamic vibration.

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