Duo™ Operating Instructions 0070-10-0603-01 2 - 1
2.0
Operation
2.1 Modes of Operation
The Duo functions in the following four (4) operating modes:
• Normal Monitoring Mode
• Standby Mode
• Auto Shutoff Mode
• Maintenance Mode
2.1.1 Normal Monitoring Mode
The Normal Monitoring Mode is the mode from which all monitoring functions are initiated
during routine operation of the Duo.
2.1.2 Standby Mode
This feature is designed to save power while the Duo is running on battery power. The Duo
can only enter Standby Mode from Normal Monitoring Mode and only while it is functioning
on battery power. It cannot enter Standby Mode from Maintenance Mode or when it is
connected to AC power. Changing the power source from battery to AC while in Standby
Mode causes the Duo to automatically return to Normal Monitoring Mode. To indicate that
the Duo has entered Standby Mode, the following will occur:
• The number eight (8) will display in the first LED position of the Information Codes tile and
will then cycle through each of the three remaining LED positions of that tile.
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