EN
14073045.04 03/2019 EN/DE
WIKA operating instructions model TR25 (Ex i)
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6. Commissioning, operation
CAUTION!
Mount the resistance thermometer from below when a horizontal pipeline is only
partially filled in operation.
Before commissioning the thermowell, clean it in accordance with the cleaning
specifications of the plant.
WARNING!
Use appropriate sealing material. The sealing must be checked regularly by the
plant operator.
The thermowell must not be bent or altered in order to mount it. The fitting should
be carried out such that there can be no damage to the thermowell as a result of the
plant operation or the operator. If necessary, one of the thermowell/pipeline mountings
mentioned below (e.g. with pipe clamps) will be required. In particular, the neck should be
secured by appropriate methods against bending.
7. Information on mounting and operation in hazardous areas
(Europe)
7.1 General information on explosion protection
The requirements of the ATEX directive must be followed. Additionally the
specifications of the respective national regulations concerning Ex usage apply.
A) The responsibility for classification of zones lies with the plant operator and not the
manufacturer/supplier of the equipment.
B) The plant operator guarantees, and is solely responsible, that all thermometers
in use are identifiable with respect to all safety-relevant characteristics. Damaged
thermometers may not be used. Repairs may only be completed using original spare
parts from the original supplier; otherwise the requirements of the approval are not
fulfilled.
The manufacturer shall not be responsible for constructional modifications after delivery
of the instruments.
C) If a component of electrical equipment, on which the explosion protection depends,
is repaired, then the electrical equipment may only be put back into use, after an
authorised expert has stated that it corresponds to the fundamental characteristics
of the requirements for explosion protection. In addition this expert must provide a
certificate for this and provide the equipment with a test mark.
6. Commissioning, operation / 7. Information on mounting ...
