Our high-quality pump uses a unique diaphragm that diffuses less than 0.5ppm of oxygen while drawing from pressures as low as 14” Hg. It pushes the sample gas through the trace oxygen analyzer allowing the sensor to operate at atmospheric pressure. Electrochemical oxygen sensors must operate at or very close to atmospheric pressure for accurate operation. Prior sample pump technologies used various types of diaphragm materials, which either allowed too much oxygen to diffuse or alternatively developed small leaks allowing air to be drawn into the system.


  • The hazardous area sample pump
  • Low diffusion diaphragm for trace O2 measurement
  • Approved for Class 1, Div 2, Groups C, D, Temp Code T6
  • AMI has developed a Class 1, Div. II Group C, D Sample Pump Module suitable for a wide range of previously impossible applications.
  • Withdraws sample from low pressure or vacuum gas lines
  • Works with AMI watchdog or 2010BR analyzers
Area Classification : Class 1, Div.2, Group C,D
Connections : ¼” SS compression fittings
Power : 12VDC @ 750ma
Pressure range : 14”Hg. to 10psig.
Dimensions : 7.5W x 6.0”H x 4.5”D


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