INSTALLATION INSTRUCTIONS
INTEGRATED MODULE FOR SMALL LAMPS
Reference
SD208+
SD308
Cells
2
3
Rating
4 Ah
4 Ah
Duration
3 hours
3 hours
Lamps
7 or 8 watt
6 / 8 watt T5
Battery cells:
2 or 3 cells 4 Ah NiCd or NiMH for 3 hour duration.
DEEP DISCHARGE PROTECTION
The module is fitted with a deep discharge circuit, which
disconnects the battery after the cell voltage has dropped below
the end of discharge level (1 volt per cell) and the circuit will
remain inert until the supply is restored. This will protect the
battery against the dangers of full and deep discharge.
FUSES
A 2A fuse must be fitted in the Unswitched Live supply to the
unit.
GENERAL DESCRIPTION
The unit comprises high frequency mains and emergency ballast
circuits, solid state automatic device operating a changeover
relay, battery charger, deep discharge protection circuit and
charge indicator for use with rechargeable NiCd or NiMH cells,
as specified above. The method of connection is by terminal
block fitted with a quick release mechanism so that leads may be
easily removed. Wires of 0.5 – 2.5mm² cross section may be
connected by pushing a solid conductor into the connection or
operating the release mechanism to insert a stranded conductor.
EMC earth connection is provided.
REMOTE MOUNTING OF MODULES
In general, these units can be remote mounted providing that the
distance between module and luminaire is kept within 0.5M.
MINERAL INSULATED CABLES MUST NOT BE USED IN ANY
CIRCUMSTANCES.
Multicore cables, which also have an
inherently high capacitance between wires may be used with
caution providing the insulation is thick and opposite sides of the
cable are used for opposite ends of the lamp to minimise losses.
TEMPERATURE
The ambient temperature range for the module is 0 – 55°C but in
any event the centre side of can should not exceed 65°C.
BATTERIES
Mackwell supply a wide range of high quality battery packs for
use with our products. They have all been designed to provide
the 4 year life required by BS EN 60598-2-22 and ICEL 1001,
when operated within the temperature range specified. The
maximum operating temperature of Mackwell battery packs is
detailed in our web site. This should not be exceeded, or the
operational life of the cells will be reduced.
For switched applications, it is recommended that a 2A fuse is
also fitted in the Switched Live supply.
DIMENSIONS
Module
Length
Width
Height
Fixing centres
: 150 mm
: 44 mm
: 35 mm
: 140 mm
Charge Indicator
Fixing Hole
: Ø 8.0 mm (with bezel)
: Ø 5.2 mm (without bezel)
ELECTRICAL INSTALLATION
Modules comply with the EMC directive in both modes of
operation, mains and emergency. Compliance will be protected
by keeping lamp leads away from mains leads to avoid transfer
of RFI to the live and neutral connections. Fused terminal blocks
should be situated so that incoming mains connections are kept
short. After installation the unswitched supply should be left
undisturbed during the commissioning and installation period, as
otherwise lamp damage may occur.
CONNECTIONS
Lamp Connections
Both the Switched and Unswitched supplies should be removed
before wiring or replacing the lamp. Where this is not possible
and for safety reasons, the ‘High voltage’ leads (marked * above)
must be wired prior to making other connections to the lamp.
NOTE: Ensure that the lamp connections are properly
terminated before connecting the battery.
Non-Switched applications
Switched live can be permanently connected to unswitched live
using a suitable link as shown in the diagram above.
Switched applications
Connect switched supply to switched live terminal. To preserve
lamp condition, it is advisable that the unit is used for
applications with infrequent switching and long burning hours.
Recommended operation is where the lamp is burning in mains
mode continuously for at least 3 hours (3-8 switchings per day).
LED ORANGE
SWITCHED
LIVE
SWITCHED
SUPPLY
LED PINK
CHARGE
INDICATOR
BATT RED
BATTERY +
BATT BLACK
BATTERY -
EMC EARTH
LIVE
UNSWITCHED
SUPPLY
*
*
NEUTRAL
39231
Issue 10
Date: May 2013
www.mackwell.com
LAMP
Page 1 of 2
OPERATION
Commissioning
When the unswitched supply is connected, the indicator will light
to show charge current is flowing to the battery. The assembled
luminaire should initially be energised for a minimum of 24 hours
to fully charge the batteries.
N.B. It should be noted that connecting the battery alone
will not light the lamp – the lamp will only operate when the
mains supply has been applied and then subsequently
failed.
At the end of an uninterrupted 24-hour period of charge, a full
rated duration test should be carried out. If the unit does not
achieve well over its rated duration time, the charge cycle should
be repeated followed by re-testing.
Lamp Replacement
To prevent damage to circuit components or overheating of the
lamp, the ballast incorporates automatic shutdown protection
circuitry. This will cause the ballast to shutdown at the end of
lamp service life or if a lamp becomes faulty. In this case,
replacing the lamp will cause the ballast to automatically restart
(refer to ‘Lamp Connections’ above).
WARRANTY
All our electronic products are guaranteed for three years to
cover both faulty workmanship and materials. This “Return to
Base” warranty requires that the product is used within the terms
and conditions stated above and in our literature, and in
particular modules must be used with the correct or approved
battery pack. Items should be carefully checked thermally so
that the specified temperatures are not exceeded under any
conditions. Do not insulation test this product. Products
returned to us under warranty must be carriage paid. Mackwell
Electronics accept no liability for costs incurred. This does not
affect your statutory rights.
Battery packs are guaranteed for one year, but when operating
within the temperature specified in our web site have a design
life in excess of four years as required by BS EN 60598-2-22.
39231
Issue 10
Date: May 2013
www.mackwell.com
Page 2 of 2