Time range
selector
Delay time
adjuster.
N
Fig 2 – Rear of DS2
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2. Installation.
IF IN DOUBT CONSULT AN ELECTRICIAN.
SWITCH OFF MAINS ELECTRICITY.
Set the switch position to 1 ON, 2 OFF and the delay time adjuster to
minimum (fully anticlockwise – see fig 2) to enable initial testing during
commissioning.
Connect the three wires to the appropriate terminals.
Mains Live – L
Switch Live – SL (to load)
Neutral – N
If two wires were connected to any terminal on the original switch they
must be kept together and connected to the appropriate terminal on
the DS2.
Make sure that the wallbox is earthed if it is metal. Ensure that all three terminals
are tight before screwing the two plate fixing screws supplied home sufficiently to
locate the DS2 securely to the wall box. Turn ON the mains supply.
If further DS2's are required to control the same load they must have all
corresponding terminals wired in parallel with these on the first DS2.
3. Commissioning.
Press the push button and the light(s)/appliance(s) under control should come ON
for approximately 3 seconds. During this time the neon behind the push button
switches off. If the load under control is low energy or fluorescent lamps they will
SL
L
not switch ON immediately and the light intensity may be reduced initially.
Having established that the DS2 is working correctly the mains supply
should be turned OFF and the two fixing screws removed from the unit.
The DS2 can then be pulled away from the wall to enable access to the
delay time adjuster and 2 gang range switch (see fig 2). The delay time can
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then be set to the required level by setting the 2 gang range switch
according to table 1 and then adjusting the delay time adjuster. The DS2
can then be fixed to the wall again using the two fixing screws. The push-
in screw covers can now be fitted if required.
The mains supply should be turned ON and the push button pressed to
ensure the delay time is correct.
2 Gang Range Switch Position
All delay times accurate to ±25%. Black - switch lever.
Adjuster Min
Adjuster Max
O N
3 sec
30 sec
1
2
O N
12 sec
2 min
1
2
O N
1 min 30 sec
16 min 30 sec
1
2
O N
12 min 30 sec
2hrs 10 min
1
2
4. Operation.
Whenever light or appliance operation is required press the push button
and the light(s)/appliance(s) under control will remain ON for the set
delay time.
5. Specifications.
i
Conforms to Directives:
73/23/EEC & 89/336/EEC
ii
Permissible Loads:
Filament lamps – 1.5kW
Fluorescent – 18 – 500W
Low voltage – 20 – 200W
Heating – 2kW
Inductive – 4A
Motor – 1hp
iii Operating Ambient
Temperature Range:
-10°C to 40°C
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iv Operating Voltage:
220 – 240V 50Hz
v
Delay Time:
4 ranges selectable by tamperproof
two gang switch:-
3 sec to 30 sec (nominal)
12 sec to 2 min 4 sec (nominal)
1 min 36 sec to 16 min 31 sec (nominal)
12 min 26 sec to 2hrs 12 min (nominal)
All adjustable by tamperproof
potentiometer (nominal times vary by
up to ±25%)
vi Terminations:
Suitable for 1mm
conductors and stranded equivalents.
vii Minimum Box Depth:
16mm
viii Standby Consumption:
Less than 2 VA
and 1.5mm
solid
2
2
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