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Idiomas disponibles
Idiomas disponibles
5. Commissioning and operation
5.13
Tapered threads (NPT)
Connections with tapered threads (NPT) are self-sealing, when a sealant is used. It
should be checked whether it may be necessary to seal them additionally with PTFE
tape or thread sealant. The threads must be lubricated with a suitable lubricant before
fitting.
EN
Tighten the threads by hand when carrying out the final assembly in the plant.
Correspond to the delivery status of the premounted components. The final tightening
and sealing must be made with a wrench (1.5 to 3 rotations).
5.14
Electrical connection
CAUTION!
Danger of short-circuit
Damage to cables, wires and connection points can lead to malfunction of
the instrument.
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Thermocouples must be earthed (grounded) if dangerous voltages could be expected
at the connection wires (caused, for example, by mechanical damage, electrostatic
discharge or induction)!
The electrical connection is to be made according to the sensor connections/pin
assignments shown below:
Ceramic terminal block
Single thermocouple
18
Avoid damaging the cables and wires.
Fine-stranded leads with bare ends must be finished with end splices.
WIKA operating instructions model TC59-E (eTEFRACTO-PAD)
Dual thermocouple
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