The AMI Model 202 is a sophisticated, compact microprocessor-based percent oxygen analyzer that combines advanced features with a remarkably simple user interface. The controls are quick and intuitive yet still provide a security function against unauthorized tampering. Click Here For a Free Quote

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The Model 202 provides precise online monitoring of percent oxygen throughout its wide range of measurement. The large 3½ digit display auto-ranges for maximum resolution, while one of the user selectable output ranges remains fixed in your range of interest. We supply four standard output ranges: 0-1%, 0-5%, 0-10% and 0-25%, two fully adjustable oxygen alarm settings, a system failure alarm, and dual outputs:0-1VDC and isolated 4-20mA. Optional measurement ranges include: 0-1000ppm, 0-50% or 0-100%.

The advanced patented cellblock design produces fast up and down scale response times. It also provides easy front panel access to the sensor allowing you to install, replace, or air calibrate in seconds without the use of tools. Routine calibrations can be performed on either ambient air (20.9%) or a certified span gas.

The Model 202 does not require support gases (other than a certified span gas if desired) to operate and is linear throughout its wide range of measurement.

This product is offered in a panel-mount version and designed for Class 1, Div. II, Groups C, D applications.

  • Standard user selectable ranges:
    0-1%, 0-5%, 0-10%, 0-25%
    Optional ranges: 0-1000ppm, 0-100%
  • Minimum detection:
    0.5% of range or 10ppm
  • Repeatability: ±1% of full scale at constant temperature
  • Display: 3½ digit LCD
  • Operating temperature range:
    32-113°F (0-45°C)
  • Diurnal temperature specification:
    32-113°F (0-45°C), less than ±3 of scale
  • 90% Response times:
    < 8 sec. Using our P-2 sensor
    < 30 sec. Using our P-3 sensor
  • Alarms (standard):
    2 fully adjustable oxygen concentration set Points. Form C relay contact closure. 3A/110VAC
  • Trouble contacts:
    Relay contact closure. 3A110VAC
  • Dual output signals:
    0-1VDC and isolated 4-20mA
  • Power requirements: 100/117/230VAC ±10% 50/60Hz, < 5 watts
  • Mounting: Panel mount
  • Area classification:
    Class I, Div. II. Group B, C, D
  • Cut out dimensions:
    7.00"W x 3.75"H
  • Front panel dimensions:
    8.375"W x 5.060"H x 5.00"D
  • Weight: 6 lbs
  • Sensor access:
    Easy, direct front panel access
  • Sample connections:
    316 S.S. ¼" compression fittings
  • Wetted parts: Nickel-plated metallic block, 316 S.S. fittings

  • Auto-ranging digital display
  • 4-user selectable output ranges
  • RS232 bi-directional communications
  • Dual outputs: 0-1VDC and isolated
    4-20mA
  • 2 fully adjustable oxygen concentration alarms. Form C relay contacts.
  • Security function
  • Trouble relay contacts
  • Direct, easy front panel sensor access
  • Compact size
  • Nickel-plated cellblock, 316 S.S. fittings
  • 2 year warranty (excluding sensor)
  • No calibration or support gases necessary
  • Virtually unaffected by hydrocarbons and other oxidizable gases
  • RFI protected
  • Unaffected by change in flow rate
    (0.1 through 5 SCFH)
  • Designed for Class I, Div. II, Group BCD areas

  • Secured intuitive user interface
  • Faster response and recovery times
  • Direct front panel sensor access
  • Ability to calibrate on air
  • Compact size
  • Two year warranty
  • Improved temperature specifications
  • Unaffected by change in flow
  • No support gases necessary
  • Unaffected by hydrocarbon or other oxidizable gases
  • RFI protected
  • Virtually maintenance free
  • Low cost