Mechanical Mounting; Electrical Mounting - WIKA TC46-Serie Betriebsanleitung

5. Commissioning, operation
EN

5.1 Mechanical mounting

The thermocouples described in this document are robust sensors but they must be
handled properly.
Precautions should be taken to ensure the MI cable is not kinked, torn or pinched.
When mounting/installing the MI cable section
Use appropriate tools such as a bending apparatus or jig.
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When bending MI cable it cannot be bent within 25 mm [1 in] of the transition region.
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The maximum bend radius for MI cable is 2 times the outside diameter of the sensor
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sheath.
Do not bend, or re-bend past the ASTM recommendations. Multiple bends along the
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same area of the MI cable may result in erroneous readings or immediate sensor
failure.
When mounting/installing the transition
The plastic transition region should never be bent or used as an anchor or pivot point.
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Using the transition as a pivot point may result in the transition breaking, resulting in
erroneous readings or immediate sensor failure.
When bending MI cable or connecting cables it cannot be bent within 25 mm [1 in] of
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the transition region.
Transition must comply with the respective requirements in terms of stability and
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temperature.

5.2 Electrical mounting

Only connect cables and lines in an unpowered state!
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Fine-stranded leads must be finished with end splices.
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Cables used must comply with the respective requirements in terms of stability and
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temperature, strain and mobility. Over-working the cable may cause fraying of the
wire.
Connection cables must be run so that any mechanical damage is prevented. This
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includes areas where wear may occur resulting in fraying of the wire.
When bending connecting cables it cannot be bent within 25 mm [1 in] of the
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transition region.
Connecting cables are not to be in contact with hot surfaces (i. e. hot manifolds).
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Where this cannot be achieved proper selection of electrical wire, transition or
high-temperature sleeve shall be used.
10
DANGER!
Danger to life caused by electric current
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!
WIKA operating instructions model TC46