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8024252/AE00/V1-0/2020-07| SICK
O P E R A T I N G I N S T R U C T I O N S | ZIRKOR200 Ex-D
Subject to change without notice
2
FOR YOUR SAFETY
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Location of Ex-relevant assemblies,
see “System overview”, page 19
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Do not remove, add or modify any components to or on the device unless described and
specified in the official manufacturer information. Otherwise the approval for the device
for use in potentially explosive atmospheres becomes void.
●
Adhere to the prescribed maintenance intervals,
see “Maintenance plan”, page 56
Special conditions:
The specification of the surface temperature of T133 °C/T141 °C applies to an ambient
temperature range of -20 °C to +40 °C/70 °C.
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The heating voltage of the probes must be switched off by a monitoring device
independent of the controller and certified for this purpose when a limit temperature of
810 °C is reached. This task is performed by the heating monitoring system (
ing shutdown in case of malfunction”, page 69
●
The oxygen measuring probe with the associated protective tube may only be used in
flue gases whose composition is not critical with regard to their corrosive effect on the
materials used. If this cannot be ensured, regular recurring checks must be carried out
at sufficiently short intervals (
see “Maintenance plan”, page 56
●
The flue gas temperature on the probe must not exceed 600 °C.
