6
Only two setting buttons are required, <Change> and <Program>. The <Program>
button is guarded to minimise inadvertent programme change. In normal operating
mode the <Change> button is used to switch ON or OFF, overriding the timeswitch
until the next programmed OFF or ON time. During programming the <Change>
button is used to set the hours, minutes and days. The <Program> button is used to
select the clock time and day or the 6 programmed ON/OFF times and days and to
review them once they have been set. Each time the <Program> button is pressed
in programme mode the display will flash either the days, hours or minutes in turn,
starting with the clock time and day then the first ON time and day(s), first OFF
time, second ON time and day(s) etc. Wherever the days, hours or minutes are
flashing they may be set using the <Change> button. Once set the <Program>
button is pressed again to proceed to the next stage. Programming can be carried
out with the slide switch in any position and with the lamp ON or OFF.
8. Normal Operating Mode
In normal operation the unit will display the correct day
and its time with the colon flashing. The output status
will be shown by either ON or OFF on the display.
9. To Reset Before Programming
(To alter clock time or modify programmes –
see section 12)
To clear programmes from memory and reset the unit
press the reset button with a pen or matchstick until
the display goes blank. Release the button and the
display will fill with its complete range of characters and
then clear to show clock and day 1 symbol flashing.
This procedure is essential with a new unit and is
recommended if major reprogramming is required subsequently.
You are now in the clock setting mode at the beginning
of the programme sequence