Lcd Backlight - Salus RT500 Instruction Manual

14 15
Reviewing Setpoint Temperature:
• Press or to review the Setpoint
temperature.
When any program is running, the LCD will show
the program Setpoint temperature with the "SET"
indicator displayed.
When operating in Frost protection mode, the LCD
will show 5°C with the Frost Protection indicator
displayed.
When operating in Temporary Override mode, the
LCD will show the temporary Setpoint temperature
• Press any key except or, or wait 3-4
seconds without key press to return to normal
mode, room temperature will be displayed.

LCD Backlight:

• LCD backlight is activated when BL/FROST or
any key is pressed. The backlight will
automatically turn off in 5 seconds after all keys
are released.
• LCD backlight will not operate when battery is
low.
• LCD backlight is illuminated throughout the
Clock, Program, and Temporary Override
Temperature settings.
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Low-Battery Detectio
Battery voltage is sampled every
battery voltage drops to a certa
Battery warning indicator appea
• The thermostat functions no
battery low. However, user
batteries as soon as possible
so weak that normal operati
assured.
• Battery voltage is determine
less than or equal to 2.6V. It
normal when it is higher tha
i.e. Low-Battery indicator mu
battery voltage is <= 2.6V, a
when battery voltage is >= 2
• Battery voltage is only samp
and when LCD backlight is t