Zirconia Flue Gas Analyser


OxyPink is a highly innovative Zirconia probe, the only one able to measure residual O2 concentration in flue gas in the whole range of temperature from 0°C to 1250°C thanks to a simple but very advanced integral heating system, managed by the external electronics.

 Able to withstand the most severe and dusty process conditions, this resilient in situ analyser, completely ceramic-made, has been specifically designed for cremators and incinerators, but it the ideal solution for all combustion processes where the probe must be always in line, whichever is the flue gas temperature.


Measureable Gas

Oxygen [O2]


Main Features

Extreme Roughness

  • Wetted parts in ceramic materials (Zirconia and pure alumina)
  • Resistant to corrosion by acid & aggressive substances, to abrasion and to the alternation of oxidant and reducing conditions
  • External flanged installation & protection tube (option) warranty extra protection in case of huge dust amount in the process


Easy to Use

  • Immediately ready and always in line, at whichever process temperature
  • Direct insertion into the post-combustion chamber or in the chimney
  • Possibility to verify the calibration without removing the probe from process
  • Calibration (with air flowing) simply pushing one button or by an external contact.
  • Ideal for use in advanced furnaces with remote control
  • Integral thermocouple


Low Costs of Ownership

  • Really in situ measurement
  • No sampling system required
  • Sensor on the tip and no gas circulation


European Compliance

  • Low Voltage Directive 2014/35/EU
  • EMC Directive 2014/30/EU


Accuracy0.1% O2 below 5% or 2% of reading above 5%
Zero Drift± 2% of reading in 3 months
Repeatability± 1% of reading (short term)
Response Timeless than 5 sec. at T95 (with flow rate 2 l/min.)
Probe Head ProtectionIP65
Weight~ 1.5 ÷ 2.5 Kg. Depending on probe length (excluded installation tube)
Wiring ConnectionsN°1 cable gland for cable max. 13 mm and inner terminal strip
Pneumatic ConnectionsReference and calibration air inlet: 1/8” NPT-F
GasOxygen (O2)
Measuring PrincipleZirconium Oxide (Zirconia)
Sensor OutputE.M.F. function of Oxygen concentration
TC OutputE.M.F. function of the temperature
Type of ThermocouplesStandard type B (pt 6 Rh-Pt 30 Rh). In alternative type S
Humidity0….90% non-condensing
Temperature Range0°C to 1250°C
Head TemperatureMax. 130°C
Reference AirDry, clean and oil-free air. Flow rate: 100…200 cc/min.
Control Unit
SNAP specifications (common to all versions)
Analog Inputs2 x isolated (1 for Oxygen and 1 for Temperature)
Analog Outputs2 x 4-20 mA isolated (1 for Oxygen and 1 for Temperature)
Output Resolutionbetter than 1x10.000 of FS
RelaysN°3 relays SPDT, 230 VAC, nominal 2A (max 4A) *
Digital Input1 x for Zero calibration (with Air)
Power Supply100-240 VAC, 2.6A, 50/60 Hz.
Ranges0-25% O2 ; 0-1200°C **
Operative Temperature-20°C…+70°C
Humidity0….90% non-condensing
ConnectionsRemovable screw terminals pace 5.08 mm
Conductor SectionMax. 2.5 mmq
MountingDIN rail
LedPower supply (blue) - Cumulative inputs overload (red) - TX/RX (yellow/amber)
*Threshold to be selected at order (factory set) or settable in field by PC with ADEV Easy Configurator or by display if Box or Case are selected
**Default ranges factory set. Modifiable on request at order on customer specification or by PC with ADEV Easy Configurator
Supplementary Box Specification
Weight8 Kg.
Dimensions400 x 300 x 150 mm
DisplayLCD 2.42” OLED. Resolution0.01%
Cable Entrance (bottom)N°4 cable glands PG 13 / 9 / 7
Supplementary ADcaseM Specification
Weight10 Kg.
Dimensions400 x 300 x 150 mm
DisplayLCD 2.42” OLED. Resolution0.01%
Cable Entrance (bottom)N°4 cable glands PG 13 / 9 / 7
Pneumatic ConnectionsReference and calibration air inlets: 1/8” NPT-F



Civil Waste Incinerators

Industrial Waste Incinerators

Hospital Waste Incinerators

Annealing Furnaces

Reheating Furnaces

Preheating Furnaces

Soaking Pits

Sintering of Metals

Process Heaters

Other combustion processes where flue gas is within temperatures limits (0 ÷ 1250 °C)


Measuring Principle


The measuring principle on which the analysis is based is linked to the use of Zirconium Oxide which, at high temperatures, can behave like a solid state electrolyte, developing an electromotive force (E.M.F.) on two electrodes placed in contact with different O2 concentrations (partial pressures), proportional to the temperature in Kelvin degrees (°K) and to the logarithm of the ratio between the two pressures PO2’ and PO2” in accordance with Nernst’s well-known ratio:


E = RT / nF (ln P02’ / P02“)


Where:           R = Perfect gas constant (8,31 Joule/degree bulk)

                       F = Faraday’s constant

                       T = Absolute temperature in °Kelvin

                       n = 4