Notes For Mounting And Operating In Hazardous Areas (Europe) - WIKA TR10-L Betriebsanleitung

6. Commissioning, operation / 7. Notes for mounting and operating in ...
WIKA order no. Designation
11349981
11349990
GB
11350008
11350016
11367416
1248278
3153134
3361485
Legend:
CuFA = Copper, max. 45 HB
with a filling made of asbestos-free sealing material
Al = Aluminium Al99
F11, 32 to 45 HB
StFA = Soft iron, 80 to 95 HB
with a filling made of asbestos-free sealing material
6.4 Tapered threads (NPT)
Connections with tapered threads (NPT) are self-sealing and normally must not be sealed. It
should be checked whether it may be necessary to seal them additionally with PTFE tape or
hemp. The threads must be lubricated with a suitable lubricant before fitting.
Tighten the threads by hand when carrying out the final assembly on the plant. This will
correspond to the delivery status of the premounted components. The final tightening and sealing
must be made with a spanner (1.5 to 3 rotations).

7. Notes for mounting and operating in hazardous areas (Europe)

Special conditions for safe use
The thermometer must be used with a power limitation circuit, which is limited to a P
category 1 application in 2-fault safety and for category 2 applications in 1-fault safety (e.g.
intrinsically safe circuits for ia and/or ib).
The thermometer must be equipped with cable entries and blanking plugs that are certified at
least to EN 50014:1992 and EN 50018: 1994. The temperature resistance must correspond, at
minimum, to the relevant approved ambient temperature range.
The thermometer should be fitted with a connecting cable whose temperature resistance must
correspond, at minimum, to the relevant approved ambient temperature range.
The thermometer is not marked with the permissible medium temperature. The correlation
between the temperature class, the permissible ambient temperature (Tamb), the minimum
neck length (M
H
element (category 2) should be taken from the table (see chapter 2.3.1) or from the type
examination certificate.
16
per DIN 7603 Form C 14 x 18 x 2 -CuFA
per DIN 7603 Form C 18 x 22 x 2 -CuFA
per DIN 7603 Form C 21 x 26 x 2 -CuFA
per DIN 7603 Form C 27 x 32 x 2.5 -CuFA
per DIN 7603 Form C20 x 24 x 2 -CuFA
per DIN 7603 D21.2 x D25.9 x 1.5 -Al
per DIN 7603 Form C D14.2 x D17.9 x 2 -StFA
per DIN 7603 Form C D33.3 x D38.9 x 2.5 -StFA
a
b
a
) and the max. temperature at the thermowell (category 1/2) or at the measuring
WIKA operating instructions models TR10-L, TC10-L Ex d
Suitable for threads
G ¼, M14 x 1,5
M18 x 1,5, G ⅜
G ½, M20 x 1,5
G ¾, M27 x 2
M20 x 1,5
G ½, M20 x 1,5
G ¼, M14 x 1,5
G 1
for
max