WIKA intelliGAUGE PGT23.063 Mode D'emploi page 16

8. Instruments with ATEX approval
Conformity specifications
For instruments with ATEX approval the following conformity specifications,
which differ slightly from the specifications indicated in the data sheet, are
GB
applicable:
Power supply:
Short circuit rating:
Power:
Internal capacitance: C
Internal inductance:
Safety instructions for installation
Transmitter supply isolators
When using ATEX instruments, an Ex transmitter supply isolator is an absolute
requirement.
We recommend Model KFD-STC4-Ex1 with a power supply of 0 ... 5 DC V,
installation on standard rail, our order number 4168
16
14 ... 0 DC V
≤ 100 mA
I
max
≤ 1000 mW
U
max
≤ 1 nF
i
negligible
Observe the installation and safety instructions included in

the operating instructions
Install the instruments in accordance with the instructions of

the manufacturer and the applicable standards and regula-
tions
Seal the cable entries using approved cable glands so that

they are leak-tight
Only use cable glands which possess an ATEX Ex e appro-

val and have an ingress protection of at least IP 65.
Fix the connection cable securely
If intrinsically safe equipment is installed in hazardous areas,

it must only be operated as part of a certified intrinsically
safe circuit.
WIKA Operating Instructions intelliGAUGE family