This clock is designed for operation from a 12 volt DC source only (10.6 to 16v)
Current dra is approximately 50mA (.05 Amps)
Allo able ambient temperature range -20 to + 50° C
The clock has a battery for time memory. To replace, remove the 4 scre s on the rear and carefully separate the case
halves. The battery ill be seen in the rear half. Slide the battery from its holder (it can only be removed from one
side of the holder), and replace ith a CR1220 Lithium Cell. Observe Polarity when fitting: + side must be up
T o po er cables are supplied. Only one can be used at any time.
One end of either supplied lead plugs into the bottom socket marked DC on the rear of the clock.
One lead is designed for cigar socket use, the other for those installations here it is desired to permanently ire the
clock into the 12v electrical system of a vehicle, vessel etc.
Observe the correct polarity if using the permanent wired lead: WHITE is to Positive +
The ire is of light gauge. Ensure it is properly connected, ell supported and provided ith proper strain relief.
The cigar plug requires the vehicle socket to have Positive + at the tip connection. All negative chassis vehicles are
ired this ay, but a vessel may not be. If in doubt check ith a voltmeter. Warranty is void if incorrectly ired.
As usual best practise, please ensure all + iring is fused as near as possible to the voltage source and run in a
orkmanlike manner. All connections must be secure, lo resistance and protected. Use a fuse rating of 1/2 an Amp
The temperature lead/sensor plugs into the top socket on the rear, marked ith a thermometer symbol. It is not
necessary for the correct operation of the clock: if it is absent the temperature display ill sho a line of dashes.
The mounting pedestal s ivels vertically, hilst the foot can rotate, or be removed. The foot has sticky tape already
attached, but for a more robust mounting it may be advantageous to drill 2 holes through the foot for scre fittings.
56-2 DIGITAL CLOCK INSTALLATION NOTES
OPERATION
When carrying out setting procedures the clock ill exit from the setting mode if no button is pressed for 10 seconds
Setting the time format to 12 or 24 Hour.
From the normal time display, press UP once. Further presses ill toggle the display 12 or 24 Hour alternately
REMEMBER: 24 hour mode ill sho as a different display only if the time is after 1pm (1300 hrs)
When in 12 Hour display mode a PM indicator is illuminated for all periods after 12.00 Noon
In all modes the centre colons flash at 1 second intervals
Setting the Time:
Press SET four times. The hours display ill flash.
Press UP or DOWN to adjust to the desired setting. The hours ill auto increase if either of the buttons is held do n
Press SET once
The Minutes display ill flash.
Press UP or DOWN to adjust to the desired setting. The min. ill auto increase if either of the buttons is held do n
Press SET once. The time is no set.
Twin Alarms
The clock contains t o completely separate alarm functions, hich can have their activation times set independently
Individually they could be used to alert to t o required aking periods or events throughout a 24 hour day.
Together they could be used to alert to the start of a time period or procedure, and then to signify the finish of that
time period or procedure
Setting the Alarms
Press ALARM once, the display ill read AL01
If it is desired to set Alarm 2 rather than Alarm 1, press UP once. This ill toggle bet een Alarms 1 and 2
Press SET once. The hours display ill flash
Press UP or DOWN to adjust to the desired setting. The hours ill auto increase if either of the buttons is held do n
Press SET once. The minutes display ill flash.
Press UP or DOWN to adjust to the desired setting. The min. ill auto increase if either of the buttons is held do n
Press SET once. The display ill sho either ALon (Alarm on) or AL---- (Alarm off)
Press UP once if necessary to toggle the display to read ALon (each press ill alternate alarm bet een On and Off)
Press SET. The alarm is no on, and AL1 or AL2 ill be displayed on the right hand side of the display
