WIKA T15 series, Руководство по эксплуатации

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EN
11. Specifications
14147933.02 10/2018 EN/DE
WIKA operating instructions model T16 29
11.1 Safety-related characteristic values for models T16.x-AI, T16.x-AC
Intrinsically safe connection values for the current loop (4 ... 20 mA)
Protection level Ex ia IIC/IIB/IIA, Ex ia IIIC or Ex ic IIC/IIB/IIA
Parameters Models T16.x-AI, T16.x-AC Models T16.x-AI
Gas hazardous application Dust hazardous
application
Terminals + / - + / -
Voltage U
i
DC 30 V DC 30 V
Current l
i
130 mA 130 mA
Power P
i
800 mW 750/650/550 mW
Effective internal capacitance C
i
18.4 nF 18.4 nF
Effective internal inductance L
i
800 µH 800 µH
Sensor circuit
Parameters Models T16.x-AI Model T16.x-AC
Ex ia IIC/IIB//IIA
Ex ia IIIC
Ex ic IIC/IIB//IIA
Terminals 1 - 2 1 - 2
Voltage U
o
DC 6.6 V DC 6.6 V
Current I
o
4 mA 4 mA
Power P
o
10 mW 10 mW
Max. external
capacitance C
o
IIC 21 µF 1) 280 µF 1)
IIB IIIC 495 µF
1)
995 µF
1)
IIA 995 µF 1) 995 µF 1)
Max. external
inductance L
o
IIC 95 mH 95 mH
IIB IIIC 95 mH 95 mH
IIA 95 mH 95 mH
Characteristics Linear
Comments:
U
o
: Maximum voltage of any conductor against the other three conductors
I
o
: Maximum output current for the least favourable connection of the internal current limiting resistors
P
o
: U
o
x I
o
divided by 4 (linear characteristic)
1) Internal L and C have already been considered
Due to distance requirements of the applied standards, the IS power and signal circuit as well
as the IS sensor circuit shall be considered as being galvanically connected to each other.
The electrical parameters of the head and rail mounting versions are identical.