Flues gas tester O2T for O2

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  • Oxygen measurement directly in the flue gas
  • Outputssignale for O2-content and flue gas temperature


The flue gas analyser O2T is a transducer for measuring the oxygen content and temperature of the flue gas.

The transmitter operates with a zirconia probe for O2 determination and with a measuring resistor Pt100 for temperature measurement. It is installed directly into the flue gas duct. A gas treatment is not required.



Measured armature: stainless steel pipe, D=60mm, lenght 250mm
Case: stainless steel tube, diameter 60 mm, 250 mm long with flow pipe 180 mm long, aluminum housing, dimensions 120 x 122 x 80 mm for the filament transformer and transmitter. Case bolted directly to the measuring valve, thermally insulated, 3 cable glands PG11
Protection class: IP 65
Weight: approx. 6 kg
Supply voltage: 230 Vac
Power consumption: approx. 35 VA
EMC: tested according EN 61000-6-2, EN 61000-6-3, CE mark

Measurementprobe: foreign heated zirkondioxid-probe
Range: 0...5 % O2, 0..10 % O2, 0...20 % O2
Output: 0...20 mA or 4...20 mA
Burde: max. 500 Ω
Response time: < 15 s für 90 % measuring value change
Readiness for operation: approx. 2 min. to turn on from the supply voltage
Exhaust gas temperature: max. 400 °C, constant
Permissible fuels: residue-free gas and light fuel oil
Lifetime probe: > 1 year
Testability: test gas connection electroniccase
Accuracy: ± 5 % v. measurement

Resistance: Pt100 to DIN 43760 class B
Accuracy: ± 2,2 °C for 100 °C < t < 400 °C
Range: 0...250 °C or 0...400 °C
Output: 0...20 mA or 4...20 mA
Burde: max. 500 Ω
Accuracy transmitter: ± 0,5 % v. final value


Additional product information

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