TX-1100-EXR Explosion Proof Oxygen Monitor


SKU: 99020 Categories: ,


An explosion-proof monitor is for use in environments that require Class I, div I, Group B, C, D, and div 2 Group E, F, G Enclosures. This monitor is specifically designed to not be a source of ignition. It is ideal for use in spaces with highly combustible gasses. This includes facilities that use blanketing with cryogenic gasses, including nitrogen, or facilities using high concentrations of oxygen. We can also adapt this monitor to be safe for use in class II environments upon request. This will be well suited for spaces with highly combustible dust or particles. This uses a 10+ year zirconium oxide sensor. Also available in Class II dust configurations.

Standard Features

  • EX Class 1 Div 1 Group B,C,D, and Div 2 Group E,F, G Enclosure
  • 10 + Years No Calibration Sensor
  • Two-Alarm Relays for 19.5% and 18.0%
  • No Maintenance Required
  • 3 Year Warranty
  • Digital Display, 4-20mA Analog Output
  • Low 450ºC temperature Zirconium Oxide Sensor
  • No Drift due to Thunderstorms or barometric pressure changes
  • Wall mounting brackets
  • Built-in Flow Sample Pump up 100 ft
  • CE Approval

Additional information

Sampling Method

Sample Draw


0 – 25 %


± 1 % of Full Scale

Operating Temperature

-40 to +55 ºC


¾” back lit LCD digital display

Sensor Type

Long life zirconium oxide sensor cell

Sensor Life

10+ years under normal conditions

Signal Outputs

4-20 mA Analog Output
Dual Level Alarm Relay Contacts

Power Requirements

24 VDC
300 mA


6.625" (W) x 5.50" (H) x 5.25" (D)
168 mm (W) x 140 mm (H) x 134 mm (D)


12 lb
5.5 kg


Explosion proof Class 1, Div 1, Group B C and D

Required Calibration

No Zero or Span Pot Adjustment Required

  • Available in Class II dust configuration.
  • 24 VDC Power Supply (P/N 45101)
  • Horn and Strobe Combo (P/N 42002)
  • Remote Display (P/N 99043)