Safety Information; Installation - SIKA 301 Notice D'utilisation

Safety Information

3 Safety Information
Ensure that the Precision Dial Thermometer cannot be damaged during operation:
The maximum temperature of the medium must remain within the indication range of the
instrument.
Ensure that type design and materials of the gas actuated thermometer are resistant in
view of the usage conditions and the medium.
- Note the protection type!
- Use thermowells!
- Note the maximum permissible operating pressure!
Thermometers without damping fluid in the casing are only suited for installation at loca-
tions free of vibrations and impacts.
4

Installation

The gas actuated thermometers must be installed and commissioned only by personnel au-
thorized by the operator.
Mechanical connection:
The mechanical connection of the gas actuated thermometers is provided in accordance with
the generally accepted engineering rules for the selected connection type.
When screwing in the gas actuated thermometer, do not exert any force on the casing. Hold
up turnable threaded nuts and union nuts at the stem.
For the purpose of providing a seal against the process, respectively against the thermowell
in the case of cylindrical fittings, gaskets made of a suitable material must be used (Stand-
ard: aluminium or copper gaskets).
NPT fittings (conical thread) provide a seal in the thread aided by suitable sealants, for ex-
ample, PTFE tape (observe usage temperature limits!).
Installation orientation of the casing:
• Dial and numbers need to be aligned vertically.
• Other orientations are possible after agreement: note the corresponding position
symbol on the dial!
Installation of gas actuated thermometers with capillary line:
•
Exclude the possibility of exposing the capillary line to tensile stresses, in particular
the joints at the casing, respectively the stem.
•
Protect the capillary line against possible damage.
•
The minimum bending radius is 30 mm.
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Dial Thermometer
© SIKA • Ba_ZT-Gas • 12/2015