SICK ZIRKOR200 | Hazardous Areas ATEX Zone 1 In-Situ Gas Analysers
Zone 1 In-Situ Gas Analyser
SICK ZIRKOR200
The ZIRKOR200 in-situ gas analyser is manufactured by SICK and provides robust, reliable, and suitability-tested oxygen measurement for both large and small combustion plants.
The ZIRKOR200 provides a low-maintenance, simple oxygen measurement system for incineration optimization. Thanks to its suitability test as per EN 15267, it is also suitable for emission monitoring.
ZIRKOR200 features a measurement cell with a particularly long service life – The long-life technology increases the resistance of the measurement cell, even in corrosive or reducing conditions. The integrated measurement cell monitoring system and the fully automated adjustment, significantly reduce the amount of maintenance required.
The Ex versions of ZIRKOR200, Ex-G & Ex-D, are certified by ATEX and IECEx for use in hazardous areas classified as Zone 1 for gas and Zone 21 for dust.
SICK gas detection equipment offers high reliability, precision and safety as well as ease of use and short response time.
SICK ZIRKOR200 is easy to operate, even remotely via an Android app. The ZIRKOR remote app allows you to wirelessly access the analyser quickly and easily using your mobile phone or tablet. As a result, the simple application of ZIRKOR200 relieves the plant operator and frees them up to concentrate on other important tasks.
This video tutorial shows how to connect the gas analyser to the ZIRKOR app.
âž¡ T&D also stock Hazardous Area ATEX Certified Mobile Phones, Computers, Laptops, Tablets & CCTV – Suitable for use in Zone 1 & Zone 2
Hazardous Area Approvals
SICK Gas Analyser Model | IECEx | ATEX |
ZIRKOR200 Ex-G | Ex db IIC T3 Gb | II 2G Ex db IIC T3 Gb |
ZIRKOR200 Ex-D | Ex tb IIIC T133°C/T141°C Db | II 2D Ex tb IIIC T133°C/T141°C Db |
SICK ZIRKOR200 Gas Analyser – Features
- Ex version for ATEX & IECEx, Zone 1 and Zone 21
- Electrochemical cell with extremely long service life due to innovative protection mechanisms
- Self-monitoring electrochemical cell
- Fully automated adjustment mechanism integrated into the control unit
- ZIRKOR remote app for remote access to the analyser
- Very short response time
- Suitability-tested according to EN 15267
- Version for high temperatures available
- Did you know? T&D also distribute SICK level sensors, flow sensors, pressure sensors and temperature sensors.
SICK ZIRKOR200
Technical SPECIFICATION
SICK ZIRKOR200 In-Situ Gas Analyser Unit (Standard)
Measured Values | O2 |
Performance-Tested Measurands | O2 |
Measurement Principles | Zirconium dioxide sensor |
Measuring Ranges | 0 … 25 Vol.-% |
Certified Measuring Ranges | O2: 0 … 25 Vol.-% |
Response Time (t90) | 5s (dependant on sample gas flow) |
Accuracy | ± 0.5 % (Of the measured value or 0.02% by O2 volume, with the higher value being valid) |
Process Temperature | Measuring probe: ≤ +600 °C Measuring probe with protective tube: ≤ +1,600 °C |
Process Pressure | –100 hPa … 100 hPa (Maximum pressure fluctuation: ± 50 hPa) |
Process Gas Velocity | ≤ 50 m/s |
Ambient Temperature | –40 °C … +80 °C |
Conformities | EN 15267 2000/76/EC (17. BImSchV) 2001/80/EC (13. BImSchV) 27. BImSchV 30. BImSchV TA-Luft (Prevention of Air Pollution) |
SIL | Safety integrity level: SIL 2 (IEC 61508) Systematic capability: (IEC 61508) Device type: Type B Operating mode: Low demand System architecture: 1oo1 voting Comment: Option |
Electrical Safety | CE |
Enclosure Rating | IP65 |
Dimensions (W x H x D) | Dimensions may vary. See data sheet |
Immersion Depth | Measuring probe: ≤ 3,682 mm Measuring probe with protective tube: ≤ 1,000 mm |
Material In Contact With Media | Stainless steel 1.4571 |
Material | Stainless steel 1.4571 |
Options | Protective tube, LongLife cell, LongLife² cell |

Analyser Unit | SICK ZIRKOR200 In-Situ Gas Analyser
SICK ZIRKOR200 In-Situ Gas Analyser Unit (Ex Versions)
Measured Values | O2 |
Performance-Tested Measurands | O2 |
Measurement Principles | Zirconium dioxide sensor |
Measuring Ranges | 0 … 25 Vol.-% |
Certified Measuring Ranges | O2: 0 … 25 Vol.-% |
Response Time (t90) | 5s (dependant on sample gas flow) |
Accuracy | ± 0.5 % (Of the measured value or 0.02% by O2 volume, with the higher value being valid) |
Process Temperature | ZIRKOR200 Ex-G measuring probe: ≤ +500 °C ZIRKOR200 Ex-G measuring probe with protective tube: ≤ +1,400 °C ZIRKOR200 Ex-D measuring probe: ≤ +600 °C |
Process Pressure | –100 hPa … 100 hPa (Maximum pressure fluctuation: ± 50 hPa) |
Process Gas Velocity | ≤ 50 m/s |
Ambient Temperature | ZIRKOR200 Ex-G: –20 °C … +55 °C ZIRKOR200 Ex-D: –20 °C … +70 °C |
Conformities | EN 15267 2000/76/EC (17. BImSchV) 2001/80/EC (13. BImSchV) 27. BImSchV 30. BImSchV TA-Luft (Prevention of Air Pollution) |
SIL | Safety integrity level: SIL 2 (IEC 61508) Systematic capability: (IEC 61508) Device type: Type B Operating mode: Low demand System architecture: 1oo1 voting Comment: Option |
Hazardous Area Ex Approvals | IECEx ZIRKOR200 Ex-G: Ex db IIC T3 Gb ZIRKOR200 Ex-D: Ex tb IIIC T133°C/T141°C Db ATEX ZIRKOR200 Ex-G: II 2G Ex db IIC T3 Gb ZIRKOR200 Ex-D: II 2D Ex tb IIIC T133°C/T141°C Db |
Electrical Safety | CE |
Enclosure Rating (Ex-G & Ex-D) | IP66 |
Dimensions (W x H x D) | Dimensions may vary. See data sheet |
Immersion Depth | ZIRKOR200 Ex-G measuring probe: ≤ 924 mm ZIRKOR200 Ex-D measuring probe with protective tube: ≤ 960 mm |
Material In Contact With Media | Stainless steel 1.4571 |
Material | Stainless steel 1.4571 |
Options | Cooling protection tube (not with ZIRKOR200 Ex-D) LongLife cell (included with ZIRKOR200 Ex-D) LongLife² cell |

Analyser Unit | SICK ZIRKOR200 Ex-G In-Situ Gas Analyser for Hazardous Areas

Analyser Unit | SICK ZIRKOR200 Ex-D In-Situ Gas Analyser for Hazardous Areas
sick ZIRKOR200 control unit standard version
Ambient Temperature | Instrument air type: –20 °C … +55 °C Pump type: +20 °C … +50 °C GRP housing with heating: –40 °C … +55 °C |
Storage Temperature | –40 °C … +80 °C |
Conformities | EN 15267 |
SIL | Safety integrity level: SIL 2 (IEC 61508) Systematic capability: (IEC 61508) Device type: Type B Operating mode: Low demand System architecture: 1oo1 voting Comment: Option |
Electrical Safety | CE |
Enclosure Rating | Steel sheet enclosure: IP66 Stainless steel housing: IP66 GRP housing: IP66 19″ rack enclosure: IP20 |
Analog Outputs | 1 output: 4 … 20 mA, + 500 Ω Electrically isolated |
Analog Inputs | 1 input: 4 … 20 mA, 120 Ω Not electrically isolated |
Digital Outputs | 5 relay contacts |
Digital Inputs | 2 relay contacts: + 24 V AC/DC, 1 A |
Communication Interface | Modbus, HART, Foundation Fieldbus Type of fieldbus integration: RTU RS-232, RTU RS-485 |
Number | 1 |
Indication | Status LEDs: “Alarm”, “Maintenance” and “Failure” |
Operation | Via LC display and membrane keyboard or via Android device with ZIRKOR Remote app |
Model | Steel sheet enclosure, stainless steel housing, GRP housing, 19″ rack |
Dimensions (W x H x D) | Steel sheet enclosure: 300 mm x 440 mm x 240 mm Stainless steel housing: 300 mm x 440 mm x 240 mm GRP housing: 510 mm x 600 mm x 310 mm 19″ rack: 483 mm x 177 mm x 400 mm |
Weight | Steel sheet enclosure: 17 kg … 19 kg Stainless steel housing: 17 kg … 19 kg GRP housing: 19 kg … 27 kg 19″ rack: 10 kg … 11 kg |
Power Supply | Voltage: 104 … 126 V / 207 … 253 V Power consumption: ≤ 400 W Recommended pre-fuse: 10A |
Options | Semi-automatic and automatic adjustment (1-point or 2-point adjustment) LongLife cell LongLife² cell Ejector & pump type |

SICK ZIRKOR200 Control Unit
ZIRKOR200 control unit Ex-G version
Ambient Temperature | –20 °C … +55 °C |
Storage Temperature | –40 °C … +80 °C |
Conformities | EN 15267 |
SIL | Safety integrity level: SIL 2 (IEC 61508) Systematic capability: (IEC 61508) Device type: Type B Operating mode: Low demand System architecture: 1oo1 voting Comment: Option |
Hazardous Area Ex Approvals | IECEx: Ex db IIC T6 Gb ATEX: II 2G Ex db IIC T6 Gb |
Electrical Safety | CE |
Enclosure Rating | IP66 |
Analog Outputs | 1 output: 4 … 20 mA, + 500 Ω Electrically isolated |
Analog Inputs | 1 input: 4 … 20 mA, 120 Ω Not electrically isolated |
Digital Outputs | 5 relay contacts |
Digital Inputs | 2 relay contacts: + 24 V AC/DC, 1 A |
Communication Interface | Modbus, HART, Foundation Fieldbus Type of fieldbus integration: RTU RS-232, RTU RS-485 |
Number | 1 |
Indication | Status LEDs: “Alarm”, “Maintenance” and “Failure” |
Operation | Via LC display and membrane keyboard or via Android device with ZIRKOR Remote app |
Model | Pressure-resistant encapsulated housing |
Dimensions (W x H x D) | 700 mm x 359.5 mm x 220 mm |
Weight | 32 kg |
Power Supply | Voltage: 104 … 126 V / 207 … 253 V Power consumption: ≤ 400 W Recommended pre-fuse: 10A |

Gas, Liquid & Bulk Solids Sensors, Analysers & Detectors from SICK
ZIRKOR200 Ex-G pneumatic unit
Ambient Temperature | –20 °C … +55 °C |
Electrical Safety | CE |
Enclosure rating | IP65 |
Dimensions (W x H x D) | 300 mm x 440 mm x 218 mm |
Auxiliaries | Test gas: 150 l/h … 180 l/h Instrument air: 30 l/h … 40 l/h, 2 … 10 bar; particle size max. 1 µm; particle content max. 1 mg/m³; oil content max. 0.1 mg/m³; pressure condensation point max. –40 °C |
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