Commissioning, Operation; Pin Assignment; Maintenance And Cleaning - WIKA TF40 Betriebsanleitung

6. Commissioning, operation / 7. Maintenance and cleaning

6. Commissioning, operation

6.1 Mounting
When the duct temperature sensor is mounted, the temperature must neither drop below
the allowed operating temperature (environment, medium) nor exceed it, even when taking
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convection and heat radiation into account.
The sensor is mounted to the air duct with a mounting flange. The duct temperature sensor
model TF40 is splash-proof (IP 65).
Requirements for meeting ingress protection
Only use cable glands within their indicated clamping area (cable diameter suitable for the
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cable gland).
Do not use the lower clamping area with very soft cable types.
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Only use circular cross-section cables (if necessary, slightly oval in cross-section).
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Do not twist the cable.
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Repeated opening/closing is possible; it might have a detrimental effect on the ingress
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protection.
For cable with a pronounced cold-flow behaviour the screw connection must be fully tightened.
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CAUTION!
The protection class is not valid with armoured cables (stainless steel sheathed).
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Seal should be checked for signs of brittleness and, if necessary, replaced.
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6.2 Pin assignment

2-wire connection

7. Maintenance and cleaning

7.1 Maintenance
The duct temperature sensor is maintenance-free.
Repairs should only be carried out by the manufacturer or, following prior consultation, by
correspondingly qualified skilled personnel.
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WIKA operating instructions model TF40