Lux Products SMART TEMP TX9100E - Manual (Page 18)

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[4] SCALE
This setting determines how the thermostat displays all
temperatures on the screen. Switch position OFF is F°, and
ON is C°.
[5] TIME
This setting determines how the thermostat displays the
clock and all other time values on the screen. Switch
position OFF is 12 HR (US Standard), and ON is 24 HR
(Military Time).
[6] BATTERY MONITOR
This determines whether the internal battery voltage monitor
watches the condition of the batteries that are installed in the
thermostat. This setting should always remain enabled
unless the thermostat is being powered by System Power
alone, without any batteries present. Switch position OFF is
Battery Monitor On (Enabled), and Switch position ON is
Battery Monitor Off (Disabled).
WARNING:
Undesired operation may result if the battery monitor is set
to “Disabled” while this thermostat has batteries installed.
9. COMPLETING THE INSTALLATION
Once all hardware option settings are performed, install two
new Energizer
® or DURACELL ® "AA" size alkaline batteries
before continuing further. Ensure that the batteries are
installed in the proper direction as per the markings shown
in the battery tray. If batteries were already installed before
setting changes were performed, simply change the
Temperature Mode switch on the front panel to any other
position so that the new settings may be recognized by the
thermostat.