Denso BHT-700BB-CE Operator's Manual page 63

Troubleshooting Guide
Problem
Unable to read barcodes.
It may not be possible to read barcodes at the following times. Refer to page 26 and take
appropriate measures.
• The barcode surface is dirty or curved.
• The barcode reading window is dirty.
• The scanning distance from the barcode is unsuitable.
• The BHT is unable to read barcodes due to specular reflection.
• Scanning is performed in a place where the direct sunlight or ambient lighting is too bright, or
in a place that is too dark.
If still unable to read barcodes after taking measures to tackle the above problems,
notify the system administrator.
Problem
An error message displays.
The error messages that display on the screen and the causes and countermeasures
to be taken if an error occurs when the power is turned ON or while running a
program are shown below.
Message
The beeper sounds 5
times (each beep lasts
for 0.1 seconds) and
then the power turns
OFF.
The BHT displays a
warning
approximately
seconds
sounding the beeper 3
times (each beep lasts
for
before returning to its
normal
status.
BHT Response
System
abnormality
The battery voltage
for has dropped to a
2 level that requires
while charging or battery
cartridge
replacement
0.1 seconds) turning the BHT ON,
OFF or while running
operational a program (System
mode or application).
49
Cause Countermeasure
program Notify the
administrator.
Replace or
the battery cartridge.
when
system
charge