4-170 Piezoelectric Accelerometer

Superior Reliable Measurement

4-170 Piezoelectric Accelerometer


- Self-generated (no exteral power)
- Balanced Differential Output
- Operates to +500°F (+260°C), +900°F Option*
- Available in 10, 20, or 50 pC/g sensitivity


- Gas Turbine Engine Monitoring
- Ground Test Application
- APU Testing
- Compressor or Gear Box Monitoring


The CEC Model 4-170 accelerometer is a self-generating, piezoelectric accelerometer designed for medium temperature vibration measurement applications. This instrument provides a high sensitivity and stable output for continuous operation at temperatures as high as +500°F (+260°C).

While the unit does not require power for operation, the accelerometer output must be operated into a charge converter that is designed to accept a 100,000 ohm source resistance. The 4-170 piezo ceramic sensing element is housed within a rugged case, where both the case and connector are made from Inconel 625.

The mounting base incorporates a standard three-point mounting pattern on a 1.188” diameter B.C., common to many applications. The 4-170 series provides a balanced differential output that is isolated from the case ground.

4-170 Spec Sheet