Integral Oxygen Analyzer ZR202

The ZR202 transmitter/detector can measure either oxygen concentration or humidity and combines benefits of the ZR402 remote analyzer and the ZR22 detector into an intelligent, rebuildable, low-cost measurement device for in-situ humidity measurement.

This smart probe features a local LCD display and infrared push-button operation for local adjustment of the instrument and calibration control. Integrated automatic calibration is also available.

Lower Cost of Ownership

The integral design of the ZR202 can reduce installation costs by minimizing the amount of tubing, wiring, and conduit required. Replacement of the zirconia cell and heater can be done in the field, reducing maintenance costs.

Easy Configuration

HART communication protocol allows for easy configuration of the instrument and updated information on all process variables and diagnostic tools.

Explosion-proof Approval

  • ZR202S-A (ATEX); Ex d IIB + H2 T2 Gb, Ex tb IIIC T300°C Db
  • ZR202S-B (FM); Class I, Division1, Groups B, C and D
  • ZR202S-C (CSA); Class I, Division1, Groups B, C and D
  • ZR202S-D (IECEx); Ex d IIB + H2 T2 Gb, Ex tb IIIC T300°C Db
  • ZR202S-K (KOSHA); Ex d IIB + H2, T2



Best Solution for Automatic Boiler Control
Sensors and controllers for the efficiency and environmental performance


Package boilers require less fuel and electric power to operate and are widely used in the pharmaceutical, food, ceramic, and other industries. A package boiler operates more efficiently if the oxygen concentration in the flue gas is reduced. 




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