Thermo Fisher Scientific ULT Freezers
Operation | 11
Power Down
To power down the ULT, first turn the breaker switch, located
at the rear of the freezer, to the off position. Once the switch
is in the off position, the display will show "OFF" followed by
"YES" and then "NO" in 2 second intervals. The checkmark
will also be illuminated while "YES" and "NO" are showing.
Press the checkmark while "YES" is showing. With a flashing
"YES", you are required to confirm by pressing the checkmark
button a second time. Power down will then be complete.
If the checkmark button is pressed while "NO" is illuminated
or if no action is taken for 5 minutes, this is interpreted as a
power failure. In this case, the user interface will stay on (using
battery power only) and an audible alarm will sound to
indicate power failure. If installed, the backup system will
remain active and inject per the backup system settings.
