SIKA 301 Notice D'utilisation page 13

Dial Thermometer
•
Vibrations and impacts need to be absorbed by suitably laying the line, for example
freely oscillating loops between two mounting points, respectively mounting point and
stem.
•
Any pinching or interruption of the capillary line will cause an immediate failure of the
gas actuated thermometer.
•
The capillary line should be laid such that a sufficient distance is maintained with re-
spect to sources of heat or cold so as to avoid temperature influences.
Installing the stem:
Install the stem such that the minimum immersion depth ET min (active part of
the stem) stated in the data sheets is completely immersed in the medium.
If the active part of the stem is only incompletely immersed in the medium,
measurement errors will result.
Consider the temperature distribution at the installation location of the gas actu-
ated thermometer. Avoid, for example, measurements too close to the walls of
large vessels or in dead spaces of pipes if this is not in agreement with the actual
measurement task.
When using thermowells, the thermal resistance between outside wall of the
stem and the thermowell can be reduced by means of a thermal contact agent.
Electrical Connection:
The electrical connection (only in the case of instruments with additional electrical fa-
cilities) must only be provided by qualified personnel.
• Observe the local regulations (Germany: VDE)
• Comply with the maximum switching capacity!
The connection of limit switches needs to be provided in line with the circuit diagram provid-
ed on the casing. Depending on the model, the maximum switching capacity is indicated on
the nameplate of the limit switch or on the circuit diagram.
The type of connection will depend on the specific model:
•
connector fitted in the factory,
• junction box,
•
Connection cable run out of the instrument.
Technical changes reserved
Installation
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