4. Commissioning and operation
4. Commissioning and operation
EN
Observe the special conditions (see chapter 5 „Special conditions for safe use
(X-conditions)").
Cleaning
The case is manufactured from plastic. To avoid the danger of electrostatic charging, the
plastic surface may only be cleaned with a damp cloth.
10
DANGER!
Danger to life from explosion
Through working in flammable atmospheres, there is a risk of explosion
which can cause death
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Only carry out set-up work in non-hazardous environments.
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In hazardous areas, only use temperature transmitters that are
approved for those hazardous areas.
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Observe the approvals on the product label.
DANGER!
Falsification of the measured values due to electrostatic discharge
When working while the process is running,
measures to prevent electrostatic discharge on the connection terminals
should be taken, as a discharge could lead to temporary corruption of the
measured value.
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Only use model T38.H temperature transmitters in grounded
thermometer heads.
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Connection of a sensor to the T38.R with a shielded cable. The
shield must be electrically connected with the case of the grounded
thermometer and, additionally, grounded on the side of the T38.R.
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Ensure there is equipotential bonding on installation, so that no
compensating currents can flow via the shield. Here, in particular, the
installation regulations for hazardous areas should be followed.
WIKA additional operating instructions, model T38.x