The standard for use in dust explosion protection zones 21/22 is called
COMTEC 6000 StaubEx. In accordance with the stringent requirements
of operation in such dusty environments, the ATEX certification meets
Class II 2D Ex tb IIIC T133°C/T141°C Db.

The precise determination of the proportion of oxygen and COe in the
flue gas is the starting point for the safe and optimized operation of
combustion plants, because both measurements are related.
This allows dangerous malfunctions in the process to be identified and
avoided earlier.
The COMTEC is also available for pure O₂ measurements.
Technical data
Process gas temperature max. 600 °C
Measuring principle O₂ Zirconium oxide|MXP
Immersion depth/material 540 mm to 960 mm (others on request) /
Stainless steel (SS316TI)
Measuring principle COe MXP (mixed potential)
Ambient temperature Probe: -20°C to +70°C | Electronics: -20°C to
+55°C
O₂ - Measuring ranges Two freely selectable measuring ranges: 0-2 vol.%
to 0-21 vol.% (others on request)
COe - Measuring ranges 0 to 5000 ppm
Housing Probe: IP66 | Electronics: IP66
Type of protection II 2D Ex tb IIIC T133°C/141°C Db
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