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8024250/18HT/V2-0/2020-12| SICK
O P E R A T I N G I N S T R U C T I O N S | ZIRKOR200 Ex-G
Subject to change without notice
INSTALLATION
5
5
Installation
5.1
Determination of the requirements for explosion protection
Check with the marking of the device and its components whether all requirements
regarding zone classification, temperature class, gas group, safety level, ambient
temperatures and pressure conditions are met.
5.2
Information on installation in potentially explosive atmospheres
Correct installation
DANGER: Danger of explosion during installation work
There is a danger of explosion due to sparking during installation, for example when
cables are connected of components are dropped.
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Perform installation work only in the Ex-free area.
DANGER: Danger of explosion through incorrect installation work
Incorrect assessment of the installation location as well as all further installation work
in potentially explosive atmospheres can cause serious injuries to people and damage
during operation.
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Installation, commissioning, maintenance and testing may be performed only by
experienced persons who have knowledge of the rules and regulations for potentially
explosive atmospheres, particularly:
– Ignition protection types
– Installation rules
– Zone classification
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Standards to be applied
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Local work safety regulations
DANGER: Danger of explosion due to damaged probe tube
A cold analyzer unit can be damaged by condensed, corrosive flue gas, as a result of
which the analyzer unit is no longer encapsulated in a flameproof enclosure and can
lead to explosions.
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The analyzer unit must be in operation while in the process.
CAUTION: Risk of injury when the device drops down
The device is heavy and may cause injury if dropped.
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Carry out assembly work on the device in pairs.
WARNING: Risk of damage to flameproof joints
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Do not damage the surfaces of the flameproof joints between enclosure and
enclosure cover of control unit and analyzer unit while opening or closing the devices.
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When a surface of a flameproof joint is damaged, replace the enclosure and the
enclosure cover.
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Prior to fitting the enclosure cover on the enclosure, protect the surfaces of the
flameproof joint with a thin layer of a suitable protective grease.
NOTICE: Protect the device from atmospheric conditions
When using outdoors under weather conditions, equip the explosion-proof electrical
equipment with a protective roof or wall.
NOTICE: Pay attention to the distance between flameproof joint and obstacles
If there are other fixed obstacles outside the enclosure, the minimum distance between
the flameproof joint of the enclosure and these obstacles shall not be less than the
distance specified in IEC/EN 60079-14.
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Gas group IIA: 10 mm
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Gas group IIB: 30 mm
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Gas group IIB+H2 or IIC: 40 mm