1. Pre-installation & safety notes
UNPACKING.
On receipt inspect the packaging and contents for signs of damage. If damage has occurred advise
the carrier and/or the suppliers immediately. Inspect the contents to confirm that all items are
present and undamaged. If any items are missing or damaged contact the supplier. It is advised
that the original carton is retained as this forms the safest transport container in the event that a
unit has to be returned for any reason.
SAFETY PRECAUTIONS.
Instructions: This Handbook and all relevant safety instructions should be read before attempting
to install, connect or operate the unit. These instructions should also be retained and kept in a safe
place for future reference.
Moisture: Do not expose the internal electronics of this unit to moisture i.e. take care during
general maintenance procedures not to open the unit while its raining without providing adequate
protection. The unit comprises a chassis mounted p.c.b. protected by an IP67 rated plastic
enclosure. Care must be taken when fitting cable entry glands to ensure that the IP rating is not
compromised. Fixing hole are provided in the corners of the main enclosure, outboard of the seal,
so it is not necessary to drill any additional fixing holes.
Power Source: Ensure that the power supply used complies with the power requirement stated on
the manufacturers label.
Servicing: Servicing of this unit should only be undertaken by qualified service personnel. On the
completion of servicing, safety checks should be performed to ensure that the unit is in proper
operating condition.
Safety Standards: All the relevant safety precautions as laid down by British Standards and Health
and Safety at Work Act should be observed.
This symbol is used to warn users that mains voltage is present with the consequent
electric shock risk.
This symbol is used to alert users to important operating and maintenance
instructions.
drx 300-II Installation Manual
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