Denso BHT-7500 - Manual (Page 49)

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Chapter 2. Getting Started the BHT and System Mode
2.3.7 BHT Turning-off Notes
[ 1 ] "Shutdown in progress" message
When the BHT is turned off by pressing the PW key or by the auto power-off feature, it
displays the following message and starts preparation for shutdown.
When the above message is displayed, do not remove the battery cartridge.
If you do so and leave the BHT without a battery cartridge loaded for one hour or
more, then the error message "Contact your administrator. Note the error number.
(2XXX)" may appear when you reload the battery cartridge and turn the BHT on.
[ 2 ] If the BHT is turned off abnormally
If the BHT is turned off abnormally* and is left without a battery cartridge loaded or
with a discharged battery cartridge loaded, then unsaved data may be lost.
(*"Normally turned off" refers to "turned off with the PW key or by the auto power-off feature.")
If the above problem has arisen, the following message will appear when you load a
fully-charged battery cartridge (or a dry battery cartridge having new dry cells) and
turn the BHT on.
Your terminal was
not shut down
properly the last
time it was used.
Unsaved data
was lost.
[SF+2]
Shutdown
in progress.
Do not remove the
battery.