WIKA TC82-F, Дополнительная информация

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EN
14302226.02 10/2020 EN/DE/FR/ES
WIKA additional information TC82, TC83, flameproof enclosure (Ex d) 13
Electrical connection values
■
Variant 1
U
max
= DC 30 V (depending on the operating system)
Use in methane atmospheres
As a result of the higher Minimum Experimental Safe Gap (MESG) and Minimum
Ignition Current (MIC) of methane, the instruments can also be used in hazardous gas
atmospheres caused by this.
■
Variant 2
U
max
= DC 30 V
P
max
= 2 W
■
Variant 3
U
max
= depending on the transmitter/digital display
P
max
= in the case: depending on the transmitter/digital display
3.7 Temperature carry-over from the process
Prevent any heat reflux from the process!
Observe the special conditions (see chapter 4 “Special conditions for use (X conditions)”).
3.8 Thread gap
For fitting, the following permitted thread gaps for electrical equipment for gas hazardous
areas must be maintained:
■
Thread gap for parallel threads (IEC/EN 60079-1, table 4):
Case volumes ≤ 100 cm³: ≥ 5 mm
Case volumes > 100 cm³: ≥ 8 mm
There must be at least 5 threads engaged
■
Thread gap for tapered threads (IEC/EN 60079-1, table 5):
on each component ≥ 5
There must be at least 4.5 threads engaged
3. Commissioning, operation