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REGARD
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3900
Installation & commissioning
_
The console requires a free space of at least 50 mm on the left-hand side so that
the front cover can be opened. Dräger recommends a free space of at least 50 mm
around the entire console.
NOTICE
Damage to the device!
►
If the control unit is mounted using the mounting holes (B), remove all the control
modules to prevent damage when drilling the holes in the panel.
►
Observe the usual precautions when drilling into walls or other structures to
prevent damage to existing cables, gas pipes or water pipes etc.
Mount the console as follows:
1. Use M6 threaded holes (A) or the suspension (C) to retain the protection class of
the console (IP 65).
2. Use a 5 mm drill bit to drill through the mounting holes (B). Drilling the mounting
holes reduces the protection class.
3. A mounting bracket that retains the protection class of the console is available at
Dräger. The mounting bracket is supplied together with the screws and washers
required for mounting the bracket to the threaded holes (A) on the back of the
console.
5.2.2 REGARD
®
3910
The REGARD
®
3910 control unit is a modular system which needs to be installed in
a rack-based system, e.g. in the REGARD
®
3910 aisle installation kit. When
mounting in a rack-based system, the regulatory requirements for electromagnetic
compatibility (EMC) and electrical safety must be met.
5.3 Cable
entry
NOTICE
Damage to the device!
►
Do not attempt to knock out the cable entries as this will damage the housing.
Take care when cutting the cable entries so that internal components and cables
are not damaged. If necessary, remove control modules to avoid damage.
1. Choose the cable hole at the top or bottom of the housing that is located next to
the cable connections in the console.
2. Use an M20 hole cutter to cut out the pre-marked cable opening.
3. Feed in the cable and use an M20 cable plug to seal the cable entry and prevent
the ingress of moisture.
5.4
Grounding plate for the cable shielding
A grounding plate for connecting the cable shielding in the console of the
REGARD
®
3900 and 3920 with earth is available from Dräger. If the grounding
plate is used, connect it to an external low-resistance earth using a braided cable
with a large cross-section.
Содержание Regard 3900
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