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The Model 7550A is a high temperature piezoelectric charge mode accelerometer designed for long term health usage monitoring on turbine engines.

The accelerometer incorporates an annular shear mode crystal that provides stable thermal response up to 300°C with output sensitivity options of 20 pC/g & 50 pC/g. The model 7550A is hermetically sealed and features the ARINC three hole mounting configuration.
Features
  • 20 pC/g to 50 pC/g Sensitivity
  • Wide bandwidth up to 12 kHz
  • Case Isolated, Internally Shielded
  • Annular Shear Mode
  • ARINC Three Hole Mount
  • Hermetically Sealed

1 - 2 of 2 Part Numbers
7550A-20
7550A-20
  • Sensitivity - 20 pC/g
7550A-50
7550A-50
  • Sensitivity - 50 pC/g
1 - 2 of 2 Part Numbers

Specifications

Accuracy

  • ± 1 % of Full Scale - Non-Linearity

Approvals & Certifications

  • CE
  • NIST
  • RoHS

Electrical Connectors

  • 2-Pin Receptacle

Enclosure, Body Material

  • Stainless Steel

Environmental Protection

  • IP67

Frequency

  • 0.1 to 12,000 Hz at ± 2 dB
  • 0.5 to 9,000 Hz at ± 10 %
  • 26,00 to 30,000 Hz

Insulation Resistance

  • > 100 megaohms at 100 Vdc

Mounting

  • Socket Head Cap Screws

Operating Temperature

  • -54° to 300° C (-65.2° to 572° F)

Sensitivity

  • < 5 % - Transverse Sensitivity
  • 14.5 to 50 PC/g

Sensor, Probe Material

  • Ceramic

Shock

  • 5,000 G

Storage Temperature

  • -54° to 300° C (-65.2° to 572° F)

Torque

  • 18 In/Lbs

  • Aircraft Engines
  • High Temperature Testing
  • Industrial Applications
  • Land Gas Turbines
  • Power Plants
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