EN
14073045.04 03/2019 EN/DE
WIKA operating instructions model TR25 (Ex i)
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Assembly and disassembly must only be carried out once the system has
been depressurised. Beware of hot surfaces and residual media!
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Please observe and follow the permissible pressure and temperature limits
for operation and the environment.
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The permissible ambient temperature given by the manufacturer must not be
exceeded.
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The definition of appropriate maintenance and inspection intervals will
depend on the individual application and is to be defined by the operator.
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Observe and follow the manufacturer´s specifications for installation,
commissioning, operation, maintenance and inspection.
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To mount in line with the relevant thread standards, suitable bolts, screws, etc.
must be used.
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To ensure the required sealing and trouble-free operation, appropriate seals
should be used during mounting.
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The assembly of the thermowells or measuring instruments to the vessel/
pipeline should be carried out so that it is permanently technically sealed.
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Electrostatic discharges of the thermowells or measuring instruments when
earthing the vessel or pipeline should be eliminated.
2.5 Special hazards
WARNING!
Observe the information given in the applicable type examination certificate and
the relevant country-specific regulations for installation and use in hazardous
areas (e.g. IEC 60079-14, NEC, CEC). Non-observance can result in serious
injury and/or damage to the equipment.
For additional important safety instructions for instruments with ATEX approval
see chapter 2.3 “Additional safety instructions for instruments per ATEX”.
WARNING!
For hazardous media such as oxygen, acetylene, flammable or toxic gases or
liquids, and refrigeration plants, compressors, etc., in addition to all standard
regulations, the appropriate existing codes or regulations must also be followed.
WARNING!
Protection from electrostatic discharge (ESD) required.
The proper use of grounded work surfaces and personal wrist straps is required
when working with exposed circuitry (printed circuit boards), in order to prevent
static discharge from damaging sensitive electronic components.
To ensure safe working on the instrument, the operating company must ensure
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that suitable first-aid equipment is available and aid is provided whenever
required.
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that the operating personnel are regularly instructed in all topics regarding
work safety, first aid and environmental protection and know the operating
instructions and, in particular, the safety instructions contained therein.
2. Safety
