HT780A High-temperature Vibration Sensors

Top exit, high-temperature 150° C, compact general purpose, MIL-C-5015 connector, case isolated, 100 mV/g, ±5% sensitivity tolerance

About the HT780A High-temperature Vibration Sensors

For applications in which extremely high temperature operation is needed, we offers the HT series of accelerometers. Dryer sections of a paper machine regularly create conditions up to 150º C. Vibration monitoring sensors must be capable of operating continuously in hot environments without degradation. HT series sensors are built with extended range components that are manufactured to withstand high temperatures for long periods of time without failing.

The top-exit HT780A 100 mV/g broadband sensor operates at high temperatures for monitoring machine vibration on a wide range of rotating equipment such as motors, pumps, fans, compressors, turbines and generators. Its compact size allows the sensor to be mounted in tight areas not accessible by full sized sensors. The 316L stainless steel case provides rugged durability for most extreme environments. The sensing element is housed in a case-isolated Faraday shield, providing maximum protection from ground loops and RF interference.

Key features HT780A

  • Lightweight for walkaround programs
  • Prevents ground loops in permanent mount applications with proper cabling
  • Hermetically sealed
  • ESD-protected
  • Reverse wiring protection
  • Manufactured in an approved ISO 9001 facility


Sensor output
Dynamic vibration (IEPE)
100 mV/g
Sensitivity tolerance
±5 %
Frequency response
0.5 Hz - 14,000 Hz
Mounting Thread
Connector style
MIL-C-5015, 2-pin
Connector orientation
Top exit
Full-scale range
80 g peak
Resonance frequency
30 kHz
Temperature range
-50°C to +150°C
62 grams
Hazardous area approvals
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