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Idiomas disponibles
5. Commissioning and operation
5. Commissioning and operation
Personnel: skilled personnel
Tools: screwdriver, open-ended spanner
EN
10
WARNING!
Physical injuries and damage to property and the environment
caused by aggressive media
Upon contact with aggressive media (e.g. oxygen, acetylene, flammable
or toxic substances) and harmful media (e.g. caustic, toxic, carcinogenic,
radioactive), there is a danger of physical injuries and damage to
property and the environment.
Should a failure occur, aggressive media with extremely high
temperature (over 55 °C [131 °F]) and under high pressure or vacuum
may be present at the instrument.
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For these media, in addition to all standard regulations, the
appropriate existing codes or regulations must also be followed.
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Wear the requisite protective equipment
DANGER!
Danger to life due to electrical voltage
Upon contact with live parts, there is a direct danger to life.
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The instrument may only be installed and mounted by skilled
personnel.
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Operation using a defective power supply unit (e.g. short-circuit from
the mains voltage to the output voltage) can result in life-threatening
voltages at the instrument.
CAUTION!
Damage to the instrument
Heavy shocks, oscillations and vibrations lead to indication uncertainties,
increased wear in the movement, and fractures on welded or soldered
joints.
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It is essential that the remote capillary is coiled in several loops
between the last fixing point and the probe, and free from tension.
Any excess length must also be coiled, since cutting would render the
instrument unserviceable.
CAUTION!
Damage to the instrument
In thermometers with a built-in microswitch, the contacts can chatter as a
result of vibrations, which can lead to an increase in contact wear and a
displacement in the desired contact point.
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Mount the indicator case free from vibration.
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If necessary, it is possible to isolate the thermometer from the mount-
ing point, e.g. by installing a flexible connection line between the
measuring location and the instrument and mounting the instrument
on a suitable bracket.
WIKA operating instructions expansion thermometer, model 70
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