Hazardous location installation
[29]
• Solely connect the EZ 1000 converter to SELV/PELV electrical circuits to meet the
requirements of U
m
= 60 V for the explosion protection. This is valid for both, the
supply (-24 V/┴) and the signal (┴/OUT) terminals.
• Install the converter completely inside an additional enclosure according to EN
60079-0, providing a degree of protection of not less than IP 54.
• The field housing must labeled with the following warning:
WARNING – EXPLOSION HAZARD – DO NOT OPEN ENCLOSURE UNLESS AREA IS
KNOWN TO BE NON-HAZARDOUS.
AVERTISSEMENT – RISQUE D’EXPLOSION. – NE PAS OUVRIR L'ENCEINTE, A MOIS
QU'IL NE S'UN EMPLACEMENT NON DANGEREUX.
• The field housing is only accessible by tools.
• The field housing and the cable glands must have an approval for the required
temperature range.
• At temperatures higher than 70°C at the cable inlet of the field housing, ensure that
proper glands and cables are used.
• The connection terminal block of the EZ 1000 converter must be plugged-in when
the wires are energized (EN 60079-0 - 20.4).
• Dimension the connection compartment so that cables can be connected without
any complications. The minimum dimension of the field housing cross section is
120 mm x 155 mm (see Figure 6-1).
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