EN
11258421.13 10/2017 EN/DE
WIKA operating instructions model T32.xS
33
Installation in EPL Dc (Zone 22) area:
Level of protection “ic” not permitted for EPL Dc application.
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Transmitter models T32.xS.0IS-x:
Transmitters with “ia” marking may also be used in supply circuits of type “ib” with the
same connection parameters. Thereby, the whole measuring circuit (including the sensor
circuit) is an “ib” circuit. Transmitters which were operated with supply circuits of type “ib”
may not be re-used with supply circuits of type “ia”.
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The external wiring shall be suitable for the ambient temperature range of the end use
application. The maximum ambient temperature for T32 of 85 °C shall be considered.
The minimum cross section for external wiring is 0.14 mm².
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Ex nA applications:
The temperature transmitters model T32.xS.0NI shall be installed in a pollution degree
2 environment or better in the end use application for use with an IP 54 minimum
enclosure provided by end user.
Operation in zone 0:
The temperature transmitter may only be operated in areas requiring category 1 equipment
when the following atmospheric conditions exist:
Temperature: -20 ... +60 °C
Pressure:
0.8 ... 1.1 bar
Operation in zone 1 and zone 2:
In accordance with the temperature class, these transmitters may only be used in the
following ambient temperature ranges:
Application
Ambient temperature range
Temperature class
Power P
i
Group II
-60
1)
/ -50 °C ≤ T
a
≤ +85 °C
T4
800 mW
-60
1)
/ -50 °C ≤ T
a
≤ +75 °C
T5
800 mW
-60
1)
/ -50 °C ≤ T
a
≤ +60 °C
T6
800 mW
Dust Ex
-60
1)
/ -50 °C ≤ T
a
≤ +40 °C
n. a.
750 mW
-60
1)
/ -50 °C ≤ T
a
≤ +75 °C
n. a.
650 mW
-60
1)
/ -50 °C ≤ T
a
≤ +100 °C
n. a.
550 mW
n. a. = not applicable
1) Special version on request (only available with specific approvals), not for rail mounting version T32.3S
10. Notes for mounting and operating in hazardous areas