Timeguard TGBT6 - Manual (Page 3)

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2. Operation
Plug the TGBT6 into a 13A socket and plug the load into the TGBT6.
The required boost time is selected by pressing the button marked
Boost repeatedly. The LED’s adjacent to the time markers (above the
Boost button) will light up in the sequence:-
First push gives 1/4hr boost
(LED opposite 1/4 is on)
Second push gives 1/2hr boost (LED’s opposite 1/4 and 1/2 are on)
Third push gives 1hr boost (LED’s opposite 1/4, 1/2 and 1 are on)
Fourth push gives 2hr boost (LED’s opposite 1/4, 1/2, 1 and 2 are on)
Fifth push returns to zero boost (all LED’s out)
Once the boost selected is underway the LED’s will go out sequentially
indicating the approximate boost time remaining. The LED which is
about to go out will flash when there is less than 2 minutes remaining
of that period.
Example:- 2hr boost has been set.
After 1hr the 2hr LED will go out indicating 1hr remaining.
After a further 1/2hr the 1hr LED will go out indicating 1/2hr remaining.
After a further 1/4hr the 1/2hr LED will go out indicating 1/4hr
remaining.
In this way the user has an approximate guide to the remaining
duration of the boost.