ABB 265DS - Use in explosion-proof areas; Explosion protection type Intrinsically safe EEx I

Use in explosion-proof areas
IM/265D/V-EN-02 265Dx, 265VS 15
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2 Use in explosion-proof areas
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According to Directive 94/9/EC (ATEX):
When installing explosion-proof transmitters (electrical connection, grounding/equipotential
bonding, etc.), national regulations, DIN/VDE standards, explosion protection directives, and the
Ex test certificate of the device must be observed. The certified explosion-proof designation for
the transmitter is provided on the name plate.
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2.1 Type-examination certificate/Declaration of conformity
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For explosion-proof transmitter models, the EC-type-examination certificate or declaration of
conformity forms an integral part of these operating instructions.
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2.2 Explosion protection type "Intrinsically safe EEx I"
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• Only intrinsically safe devices may be installed in the transmitter signal circuit. The signal
circuit can be interrupted while the transmitter is in operation (e.g., clamping/unclamping
signal lines).
• The housing may be opened during operation.
• Transmitters with or without remote seals featuring explosion protection type "EEx i"
(intrinsically safe) may be set up directly at Zone 0, provided that the power is supplied via
an intrinsically safe electrical circuit with protection type EEx ia or EEx ib.
• Test circuit (terminals "TEST +/-"): With explosion protection type "intrinsically safe",
connections should only be established to passive, intrinsically safe circuits. The category,
explosion group, and maximum values for U
o
, I
o
, and P
o
of the intrinsically safe test circuit
can be determined on the basis of the intrinsically safe signal circuit connected.
Important
Please observe the rules governing interconnection.
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