Meggitt 144-171-000-031 Vibration Accelerometer Unit

Module Feature

144-171-000-031 is a high-temperature piezoelectric accelerometer from Meggitt Vibro-Meter.

It is specially designed for vibration measurement of gas turbines and other high-temperature rotating equipment. The hermetically sealed stainless steel structure can adapt to harsh high-temperature environments. It outputs charge signal proportional to vibration acceleration, and needs to be matched with charge amplifier or monitoring module. Widely stocked as spare for power generation and petrochemical condition monitoring system.

Working principle

Internal piezoelectric crystal generates charge signal when subjected to vibration acceleration.

The charge signal is transmitted to the signal conditioning unit via low-noise shielded cable. The monitoring system converts the charge signal into vibration acceleration value for real-time monitoring, alarm and fault analysis of the turbine unit.

Onboard components

Piezoelectric sensing element, internal insulating structure, hermetically sealed stainless steel shell, high temperature cable connector and shielding assembly.

LED indicators

No built-in LED indicator.

Hardware self‑diagnosis

Check cable insulation, connector tightness and signal integrity through the vibration monitoring host. No local adjustment function.

Programming software

Not applicable, charge output transducer, configured by matched monitoring system software.

Electrical & Process Parameters

Model: 144-171-000-031 Brand: Meggitt Vibro-Meter Device type: Piezoelectric vibration accelerometer Function: Vibration acceleration acquisition for gas turbine and rotating machinery condition monitoring

Mechanical & Structure

Mounting: Thread stud mounting on machine casing Protection class: Hermetically sealed Housing: Stainless steel hermetic housing

Environmental

Operating temperature: -55℃ ~ +260℃ Storage temperature: -60℃ ~ +280℃ Ambient humidity: 5~95% non‑condensing

Certification: CE Status: Original Meggitt monitoring spare

Installation

Cut off monitoring system power before replacement.

Screw the sensor onto the cleaned mounting stud and lock it, connect the low-noise charge cable, verify signal and vibration reading after commissioning.

Interface

Charge signal connector, shielded cable interface.

Diagnostic

No vibration signal: Cable broken, connector loose or internal crystal damaged. Signal noise: Poor shielding, ground loop interference. Signal drift: Operating temperature exceeds the sensor specification range.

Product Brief

144-171-000-031 transducer, Meggitt Vibro-Meter high-temperature piezoelectric vibration accelerometer spare for gas turbine condition monitoring replacement.