In-situ gas analyzers

Oxygen measurement made easy

Your Benefits

  • High availability due to measurement cell with long service life
  • Reduction of analyzer failures due to internal self-monitoring
  • Quick measurement close to the combustion process for timely control
  • Easy analyzer operation – even remotely

The exact device specifications and performance data of the product may deviate from the information provided here, and depend on the application in which the product is being used and the relevant customer specifications.


Oxygen measurement made easy

The ZIRKOR100 gas analyzer from SICK provides robust and reliable oxygen measurement for small combustion plants. It is characterized by a measurement cell with a long service life and a diagnostic function. This significantly reduces maintenance effort. The ZIRKOR remote app allows you to wirelessly access the analyzer quickly and easily.

As a result, the simple ZIRKOR100 oxygen measurement relieves the plant operator and frees them up to concentrate on other important tasks.

At a glance
  • Measurement cell with long service life due to high-quality processing
  • Measurement cell self-monitoring
  • Version for high temperatures available
  • ZIRKOR remote app for remote access to analyzer
  • Very short response time


Spare parts


Service & Support

Technical overview

  • ZIRKOR100 analyzer unit

    ZIRKOR100 analyzer unit

    Measured valuesO2
    Measurement principlesZirconium dioxide sensor
    Measuring ranges
    O20 ... 25 %
    Response time (t90)
    5 s
    Depending on sample gas flow
    ± 0.5 %
    Of the measured value or 0.02% by O2 volume, with the higher value being valid
    Process temperature
    Measuring probe≤ +400 °C
    Measuring probe with protective tube≤ +1,400 °C
    Process pressure
    –100 hPa ... 100 hPa
    Maximum pressure fluctuation: ± 50 hPa
    Process gas velocity
    ≤ 50 m/s
    Ambient temperature
    –40 °C ... +80 °C
    Electrical safetyCE
    Enclosure rating
    Dimensions (W x H x D)
    Dimensions may vary. For details, see the dimensional drawings.
    Immersion depth
    Measuring probe≤ 500 mm
    Measuring probe with protective tube≤ 1,000 mm
    Material in contact with mediaStainless steel 1.4571
    MaterialStainless steel 1.4571
    OptionsProtective tube
  • ZIRKOR100 control unit

    ZIRKOR100 control unit

    Ambient temperature
    –20 °C ... +55 °C
    Storage temperature
    –40 °C ... +80 °C
    Electrical safetyCE
    Enclosure rating
    Analog outputs1 output:
    4 ... 20 mA, 500 Ω
    Digital outputs2 outputs:
    Up to 4 optional outputs possible
    Status LEDs: "Alarm", "Maintenance" and "Failure"

    Via LC display and membrane keyboard

    Via Android device with ZIRKOR Remote app

    ModelSteel sheet enclosure
    Dimensions (W x H x D)
    300 mm x 440 mm x 240 mm (for details see dimensional drawings)
    17 kg ... 19 kg
    Power supply
    Voltage104 V AC ... 126 V AC, ± 10 %
    207 V AC ... 253 V AC, ± 10 %
    Frequency50 Hz / 60 Hz
    Power consumption≤ 350 VA
    Recommended pre-fuse10 A
    OptionsOxygen limit warning (min/max value)
All technical data can be found accompanying the individual product