Wika PGT43.100 Manual do Utilizador descarregar pdf (Página 16)

Conformity specifications

For instruments with ATEX approval the following conformity specifications,

which differ slightly from the specifications indicated in the data sheet, are

applicable:

Power supply: 14 … 30 DC V

Short circuit rating: Imax ≤ 100 mA

Power: Umax ≤ 1000 mW

Internal capacitance: Ci ≤ 12 nF

Internal inductance: negligible

Safety instructions for installation

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.

Transmitter supply isolators

When using ATEX instruments, an Ex transmitter supply isolator is an absolute

requirement.

We recommend Model KFD2-STC4-Ex1 with a power supply of 20 ... 35 DC V,

installation on standard rail, our order number 2341268



11297264 05/2009 GB/D/F/E

WIKA Operating Instructions intelliGAUGE family

8. Instruments with ATEX approval

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 87 88

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