Wika TGT73 Manual do Utilizador descarregar pdf (Página 15)

Thermowell

Stem

Required safety

clearance

14028755.02 08/2012 GB/D/F/E

WIKA operating instructions model TGT73 15

3. Position the indicator as required, tighten the hexagon bolts and

slotted screws, and nally tighten the lock nut or union nut rmly.

When using thermowells, they must be lled with a thermal contact

medium in order to reduce the heat transfer resistance between the

outer wall of the sensor and the inner wall of the thermowell. The

working temperature of the thermal compound is -40 ... +200 °C.

WARNING!

Do not ll hot thermowells. There is a risk of the oil

spraying out!

6. Commissioning, operation

CAUTION!

When using thermowells, please

note that the stem must not touch

the bottom of the thermowell.

Due to the dierent coecients

of expansion of the materials, the

stem can bend at the bottom of the

thermowell.

(For the formula for the calculation

of the insertion length, l

, see the

respective thermowell data sheet)

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Wika TGT73 Manual do Utilizador Página 15