Dürkopp Adler 550-867 Operating Instruction page 169

Programming
Operating Instructions 550-867 - 00.0 - 11/2016
Information
The power consumption in standby mode is lower than during
sewing.
Important
Always keep the UPS switched on during operation to ensure that
the battery is constantly charged and you will not incur any loss
of data in the event of a power supply interruption ( p. 75).
Check the condition of the battery on a regular basis. When the
Replace Battery light comes on, replace the old battery with a
new one of the same quality.
The check the current status of the UPS:
1. Log in with security level 2 ( p. 88).
2. Open the Checks display ( p. 132).
3. Tap the UPS button.
 The display switches to:
Fig. 137: Uninterrupted power supply (UPS) (2)
167