Wika 73 Manual do Utilizador descarregar pdf (Página 12)

12099431.05 10/2010 GB/D/F/E

12 WIKA operating instructions models 73, 74, 75

6. Commissioning, operation

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!

CAUTION!

When using thermowells, please

ensure that the stem does not

touch the bottom of the thermowell

since, due to the dierent

expansion coecients of the

materials, the stem may become

buckled at the bottom of the

thermowell.

(Formula for the calculation of the

stem length l

see the respective

thermowell data sheet)

Thermowell

Stem

required safety

clearance

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 59 60

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Wika 73 Manual do Utilizador Página 12