WIKA T32.xS - Handbuch (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 ...