Salus RT300 Instruction Manual page 11

Salus RT300 Manual 002:89
OTHER FUNCTIONS AND CONTROLS
Backlight
The backlight of the RT300 is switched on automatically whenever any of the keys are
pressed. The backlight will remain illuminated for approximately 5 seconds after the
last key press, except if you are changing the set point temperature – in this case, the
backlight will remain illuminated throughout the setting change process.
The backlight will not illuminate if the RT300 battery is low.
Battery Status
The RT300 checks the battery voltage frequently during normal operation. If the
battery voltage is sensed as being low (this is normally when the battery voltage falls
to a level of around 2.6V), the low battery indicator
screen.
Although the digital thermostat will continue to operate normally at this stage, you
should replace the batteries as soon as possible to prevent any possible operating
problems.
Sleep Mode
By pressing both the UP and DOWN keys together, the RT300 will enter SLEEP mode.
In this mode, all the RT300 functions will be paused to save battery power.
While in SLEEP mode:
•
The LCD display will be blank.
•
All output from the thermostat will be turned off immediately.
Press any key to wake up the RT300 and cancel SLEEP mode.
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