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4100-HCF2
Revision 3.0
P a g e 11 | 35
4.0 INSTALLATION
NOTICE
If any damage to the instrument is found, please notify an Arjay
Engineering representative as soon as possible prior to installation.
NOTICE
Qualified Personnel must undertake all installations.
WARNING
If the equipment is used in a manner not specified by the manufacturer,
the protection provided by the equipment may be impaired.
4.1
Main and Remote Panel Installation
Choose the mounting location in accordance with good instrument practice. Extremes of ambient
temperature and vibration should be avoided (see specifications and installation drawing).
Remote mimic panels can be mounted up to 300 meters away from the main panel.
The float sensor with built-in PMC card can be mounted up to 1 km away from the main panel.
NOTICE
The controller operates in a Failsafe Mode (factory default).
This means that the relays are in an energized state during normal operation. The N.O. relay
contact will be held closed and the N.C. relay contact will be held open during a normal condition.
This will allow the relay to return to its non-energized (shelf) state during an alarm, fault or power
failure condition. If using the Relay 4 as Pump Run relay then non-failsafe mode is used. Wire
accordingly.
CAUTION
The
Internal
ground screw provided in this enclosure must be used for
equipment grounding connection.
The
External
ground screw is provided for use only as a supplemental
connection where required (or, permitted) by local codes or authorities.