Timeguard TGBT5 - Manual (Page 4)

4
3. Operation
If it is less than 15 seconds since the Boost button was pressed the
boost may be stopped at any time by pressing the Boost button
repeatedly until all the LED’s are extinguished. After 15 seconds the
boost may be stopped by a single press of the Boost button.
The boost period may be changed at any time by pressing the Boost
button until the required time LED is lit. In which case the indicated
boost time will start from when the Boost button was pressed.
If the button is pressed and then held the LED’s will cycle upwards
with 1 second between each change. It will go in the sequence
1, 2, 3, 4, OFF, 1, 2 etc.
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 1hr boost
(LED opposite 1 is on)
Second push gives 2hr boost (LED’s opposite 1 and 2 are on)
Third push gives 3hr boost (LED’s opposite 1, 2 and 3 are on)
Fourth push gives 4hr boost (LED’s opposite 1, 2, 3 and 4 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:- 4hr boost has been set.
After 1hr the 4hr LED will go out indicating 3hr remaining.
After a further 1hr the 3hr LED will go out indicating 2hr remaining.
After a further 1hr the 2hr LED will go out indicating 1hr remaining.
In this way the user has an approximate guide to the remaining
duration of the boost.
Stopping or Increasing Boost