VIBRO METER CA134 144-134-000-612 Piezoelectric Accelerometer

Parameter
Model: CA134 144-134-000-612 Piezoelectric Accelerometer
Sensitivity: 10 pC/g
Frequency response: 0.5 to 6 000 Hz
Temperature range: −54 to 500 °C
Cryogenic version: −253 °C (20 K) to 500 °C 
Signal processing: Charge converter (IPC70x signal conditioner)
Dynamic measurement range: 0.001 to 500 g peak
Overload capacity (spikes): Up to 1000 g peak
Transverse sensitivity: <5%

Description

The VIBRO METER CA134 144-134-000-612 is a high-temperature piezoelectric accelerometer from the Vibro-Meter CA134 series, used for vibration measurement in applications where the sensor is exposed to wide temperature ranges and harsh operating conditions. The sensor uses a piezoelectric sensing element with a charge output, requiring an external charge amplifier such as the IPC707 signal conditioner to convert the signal into a current or voltage output suitable for monitoring systems. The CA134 144-134-000-612 features a compression-mode measuring element installed inside a hermetically welded high-temperature nickel alloy housing with internal case insulation. This construction allows the sensor to operate in environments with high thermal loads while maintaining vibration measurement capability. The sensor version is supplied with an integral mineral-insulated (MI) cable protected by a double braid, providing a fixed connection between the sensor and the monitoring system. With a sensitivity of 10 pC/g and a frequency response from 0.5 to 6000 Hz, the CA134 provides vibration signal measurement across a wide frequency range. 

Frequently asked questions

Q:What is the measuring principle used by the CA134 sensor?
A:The CA134 uses a compression-mode piezoelectric sensing element. The sensing element is installed inside a high-temperature nickel alloy housing with internal case insulation for vibration measurement under demanding temperature conditions.

Q:What equipment is required to use the CA134 144-134-000-612 in a vibration monitoring system?
A:The sensor requires suitable signal conditioning equipment to process its charge output. A charge amplifier, such as the Vibro-Meter IPC707 signal conditioner, can be used to convert the sensor signal for connection to vibration monitoring systems.

Q:What applications use the VIBRO METER CA134 144-134-000-612?

A:The CA134 is used for vibration monitoring on equipment operating under high temperature or harsh environmental conditions. Typical applications include gas turbines, cryogenic installations, and other industrial machinery requiring vibration measurement over a wide temperature range.

Application areas

The Vibro-Meter CA134 144-134-000-612 is a specialized, hermetically sealed, compression-mode piezoelectric accelerometer designed for extreme environments, primary applications include:

• Cryogenic Systems: Long-term monitoring of liquified gas processing and storage down to −253°C
• IPC707 / IPC704 Charge Conditioner Interfacing: Connected via its LEMO connector interface to dedicated charge amplifiers, transforming raw electrostatic charge outputs into standard voltage or current loop outputs readable by commercial DCS and PLC automation platforms.
• Petrochemical and Refining Reactors: Mounted on high-temperature mixers, agitators, and high-pressure transfer pumps used in hydrocracking and catalytic cracking units where thermal stress and explosive hazards coexist.

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