• Biaxial Sensors
  • Choice of Power Options
  • 200°C 190°C Operation
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Columbia Models SA-220RHT and SA-225RHT Force Balance Accelerometers have been designed as Measurement While Drilling (MWD) sensors for use In down hole well service applications.The Model SA-220RHT operates from ±15VDC and is capable of operating at temperatures of up to 200°C. Model SA-225RHT requires ±5VDC and operates to 190°C. Both sensors are completely self-contained and provide a high level, low Impedance output eliminating the need for high temperature signal conditioning.

In addition to exceptional high temperature performance, rugged construction and lOW° power consumption have made the SA-220RHT and SA-225RHT sensors the accepted standard for use in down hole high temperature mapping.

Consult the factory for customized versions of this sensor.


Ranges Available ±1G to ±10G
Output Voltage ±5 Volts ±2% Into 100K Load
Excitation +15 VDC <40 mA
Non-Linearity ±0.05% F.R.
Case Alignment <0.5°
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