The EnergyTech 203 O2 and CO analyser is the ideal equipment for fine tuning the air / combustible proportions in a way to improve process efficiency without compromising safety.

Combustion efficiency is determined by low-level oxygen excess in the flue gas and is limited by the production of hazardous combustible gas (mainly CO) at low oxygen concentrations. It is thus crucial to control the O2 excess concentration as well a the amount of combustible gas in the flue gas to optimise combustion.

Thanks to the CODEL infrared and zirconia technology, the analyser provides both oxygen concentration and an accurate measurement of CO in the flue gas.

Key features
  • Minimal maintenance requirements – No consumables and low cost of ownership
  • Rapid, accurate results – for safe operation of coal handling systems
  • Analogue & contact outputs – communication to DCS and SCADA systems
  • Compact powerful diaphragm pump for constant reliable sampling
  • Automated self cleaning filter design & blockage check
  • Temperature controlled Measurement Cell for maximum accuracy and long life
  • Automated back-flushing of probe filter & sample flow rate check
Typical Applications
  • Power plant: biomass / gas / oil / coal
  • Boiler Rooms
  • Incinerators
  • Metalworking industry
  • Paper factories
SpecificationImagesDocumentationProduct Enquiry



Operating Principle Infrared Absorption (CO) / Zirconium (O2)
Gas Species Carbon Monoxide (CO) Oxygen (O2)
Measuring units ppm
Ambient Temperature -20°C to +55°C
Power supply 110 – 240V AC 500VA
Construction RAL7035 Structure powder coated mild steel sealed to IP66
Analogue outputs 2 x 4-20mA current outputs as standard, isolated, 500Ω load max, fully configurable
from keypad (additional outputs available, see optional items below)
Contact Outputs 1 x volt-free SPCO contact, 50V, 1A max, for data valid signal)
Serial Data RS485 port for Codel diagnostic use
Display 32 Character alpha-numeric back-lit LCD)

Current documentation available

Lang Filetype Document Size
English EnergyTech 203 Datasheet 2mb
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