VEGA T32.10-11-30 Benutzerhandbuch
Seite 18
GB
2383336 12/2008 GB/D
18
WIKA Operating Instructions Temperature Transmitter T32.10/11/30
7. Notes for mounting and operating in hazardous areas
The sum of the values of the connected sensor and the connection
line must not exceed the following values for the maximum permis-
sible capacity and inductivity:
Model T32.**.**2
II 1G EEx ia
Group IIB
C
sensor
+ C
line
< C
O
C
O
= 11 µF
L
sensor
+ L
line
< L
O
L
O
= 1 mH
Model T32.**.**2
II 1G EEx ia
Group IIB
C
sensor
+ C
line
< C
O
C
O
= 1.6 µF
L
sensor
+ L
line
< L
O
L
O
= 1 mH
Model T32.**.**2
II 1G EEx ia
Group IIB
C
sensor
+ C
line
< C
O
C
O
= 1000 µF
L
sensor
+ L
line
< L
O
L
O
= 1000 mH
Connected thermocouples or mV-Sensors must not exceed
following values:
voltage
U
i
= DC 1.2 V
effective internal capacity C
i
= negligable
effective internal inductivity L
i
= negligable
7.3.3 FSK modem / HART
®
Communicator (terminal j and i)
Following must be observed:
The sum of all voltages connected (supply plus output values of
the FSK modem and / or HART
®
Communicator) must not exceed
the maximum permissible value:
II 1G EEx ia:
30 V
II 3G EEx nL/nA: 0 V
The sum of the effective capacities and inductivities must not
exceed the maximum permissible value according to the required
instrument group (IIA up to IIC).
You can find further information on this subject in the EC type
examination certificate of the FSK modem (DMT 01 ATEX E 023)
and in the EC type examination certificate of the T32
(DMT 99 E 088 X).
With EEx nA, Model T32.**.**9: Connection inside the
hazardous area is not allowed.