Selectric LG-DIHT User manual

Digital Immersion Heater Timeswitch
Instruction Manual
Selectric Energy Savers Model Number: LG-DIHT
A. Operation Instructions
Operation is quite simple due to an integrated microprocessor. The built-in rechargeable battery
guarantees the timer’s full reliability, even when you have a power failure.
B. Important
zBefore connecting the timer to the mains, check that the mains voltage and frequency correspond to
the rating plate (on back of timer).
zDo not overload. Refer to the Ampere rating (amps) on the rating plate.
zDo not expose the timer to extremely high or low temperatures. Do not place the timer in direct
sunlight.
zDo not allow the timer to come into contact with water.
zDo not use this timer outdoors - for indoor use only.
C. How to operate
using the timer for the first time or when the timer has not been used for some time it may need to be
“charged”. To do this, connect to power. The built-in rechargeable battery will begin to charge. When
symbols appear in the display (after approx. 2 minutes), press the “Reset” button (use a pencil or pen).
Caution: this will cancel all memory including timer settings. The timer will be “clean” for new commands.
If a power failure should occur (or should the timer be disconnected from the power supply for a short
time), the built-in rechargeable battery will then provide power to the clock and guarantee that the time
and switching programmers are retained and not disturbed or lost.
D. How to set 24 Hour clock
Present time and day
1/ Keep button pressed down during the entire “present time and day” setting procedure.
2/ Set the present time using buttons “h+” and “m+”. If you keep buttons “h+” and “m+” pressed down for
longer than a second the figures in the display will scroll continuously. Set the present day of the week
using button “Day”.
3/ Release button . The clock is now running. The flashing colon indicates this. Use a reliable time
signal (e.g. telephone or radio) to set the clock accurately to the minvute.
E. Switching time(s)
You can set as many as six switching-on commands and an equal number of corresponding
switching-off commands in the following manner:
1/ Push the button marked “TIMER” down once. The actual time will disappear from the display. This

Timer on indication will be displayed instead, denoting a vacant “on” time on No.1 programme.
2/ Set the required switching-on time using buttons “h+” and “m+”
3/ Set the day(s). See “Day” button selection (over) on which the switching-on command must be
executed.
4/ Push the button marked “TIMER” down once. This display indication will be displayed……
5/ Set the required switching-off time using button “h+” and “m+”.
6/ Set the day(s) on which the switching-off commands must be executed. (No day/s denotes every day.)
7/ Press button “Timer” to save the command.
When this Timer on indication appears you
can begin setting another switching-on command,
if you wish. Six such programmes may be stored in this manner.
After setting the required “on” and “off” times, press to revert to present time.
Note: Be sure that: the desired day or days
are chosen on both the “on” and “off” displays.
F. “Day” button selections
Every day of the week
If you do not enter the day when setting a switching command, the switching will be carried out at the set

time on every day of the week.
Only one day of the week
If you enter a particular day while setting a switching command (using button “Day”), the command will
be carried out at the set time only on that specific day of the week.
Abbreviations
MO = Monday,
TU = Tuesday,
WE = Wednesday,
TH = Thursday,
FR = Friday,
SA = Saturday,
SU = Sunday
On a weekly combination (or “block” programming) of days
When pressing button “Day” several times, you will find by means of the display that three combinations
of days are also possible:
MO TU WE TH FR = Monday to Friday
SA SU = Saturday and Sunday
MO TU WE TH FR SA = Monday to Saturday
If you enter these combinations of days instead of one individual day, the on/off command will be carried
out at the set time on each of the corresponding days of the week. This programme will repeat itself
week after week until the programme is changed or the timer is disconnected.
G. How to check, change or delete switching commands
Checking
By pressing button “Timer” a number of times you can make the switching-on and switching-off
commands visible in the display: first the set commands are presented and then the free spaces.
Changing
You can change a switching command by making it appear on the display and pressing “day”, “hour”
and “minute” buttons accordingly.
Deleting
Delete a timer command period (an “on” and “off” time) by making that “on” display visible in the window
and pressing “h+” until “—“ is displayed immediately after 23. Do the same with “m+” until “—“appears
after 59. Press “Day” until no days are visible. Repeat this sequence for the “off” mode. The deleted
command then becomes available for reprogramming. Press button “Timer” after changing or deleting a
command to save the new command.
Switching back to present time
After setting the switching commands you return to normal time reading by pressing button.
Is power being supplied to connecting load?
The word “ON” or “OFF” in the display, next to the normal time reading, informs you about the actual
switching condition.
H. Override switch
When in the ‘off” mode pressing the button marked will switch “on” the power to the load connected
to the timer. If the button is not pressed again, power will remain on until the following “off”command
the “on” mode, pressing thisWhen in button will turn the power off. If not pressed has been reached,
again the power will remain off until the following “on” command has been reached.

WARNING: -A “QUALIFIED ELECTRICIAN” MUST INSTALL THIS PRODUCT.
I. Specification
No. of channels 1
Contact rating 16A, 240V Cos ф=1
Shortest switching time 1 minute
Capacity 6 programme blocks
Voltage supply 240V ac
Mains frequency 50Hz
Possible settings Clock time, time on/ timer off, days of week. 6 block programmes.
Display LCD figures 4mm high
Deviation 2.5 seconds per day
Reserve 100 hours
Manual switch Yes
Connections 2.5mm