WIKA T32.xS Benutzerhandbuch
Seite 41

GB
11258421.10 08/2014 GB/D
WIKA operating instructions model T32.xS
41
10.3 Safety values
10.3.1 Sensor circuit (terminals 1 to 4)
Parameters
Model T32.xS.0IS,
T32.xS.0IS-x
Model T32.xS.0IC,
T32.xS.0IC-x
Level of protection
Ex ia IIC/IIB/IIA
Ex ia IIIC
Ex ic IIC/IIB/IIA
Terminals
1-4
Voltage U
o
DC 6.5 V
Strength of current l
o
9.3 mA
Power P
o
15.2 mW
Voltage U
o
n. a.
Strength of current l
o
n. a.
Power P
o
n. a.
Effective internal capacitance
C
i
208 nF
Effective internal inductance L
i
negligible
Max. external
capacitance C
o
IIC
24 µF
1)
325 µF
1)
IIB IIIC
570 µF
1)
570 µF
1)
IIA
1,000 µF
1)
1,000 µF
1)
Max. external
inductance L
o
IIC
365 mH
821 mH
IIB IIIC
1,644 mH
3,699 mH
IIA
3,288 mH
7,399 mH
Max. inductance/
resistance ratio
L
o
/R
o
IIC
1.44 mH/Ω
3.23 mH/Ω
IIB IIIC
5.75 µH/Ω
12.9 mH/Ω
IIA
11.5 µH/Ω
25.8 mH/Ω
Characteristics
linear
n. a. = not applicable
1) C
i
already incorporated
Notes:
U
o
: max. voltage of any conductor against the other three conductors
I
o
: max. current of three conductors parallel to the fourth conductor or any other combination
P
o
: max. power of three conductors parallel to the fourth conductor or any other combination
Due to separation requirements of the applied standards, IS supply- and
signal-circuit and the IS sensor circuit shall be considered as beeing
galvanically connected to each other.
10. Notes for mounting, operating in ...