Denso BHT-700BB-CE Operator's Manual page 58

Replacing the Battery Cartridge
If the Screen Below Displays Following Replacement...
Display
Handling
When the BHT power is turned ON after a long period of no
use, it may be necessary to recalibrate the touch screen and
reset the date and time.
If this message displays, calibrate the touch screen and set
the date and time. (See page 23.)
Reboot the BHT if this message displays. Contact the system
administrator if this error persists.
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