Troubleshooting - A&D TM-2440 Instruction Manual

9.5. Troubleshooting

Consult the following checklist and error code list before contacting
your local dealer.
If these measures do not rectify the problem or the problem occurs
again, contact your local dealer.
Problem
No display after
pressing any switches.
No OLED display
during A-BPM.
Frequent clock reset.
No pressurization
No USB
communication
Communication
response takes time.
Battery cover cannot
be opened
#1: Users (unauthorized maintenance personnel) cannot replace
the backup battery (lithium battery) on the circuit board inside
the recorder. The backup battery is charged from the batteries
(LR6 or AA size) for measurement.
#2: A dedicated peripheral is required.
Do not disassemble or modify the recorder. It may be damaged.
Main cause
Battery power has been
consumed.
OLED may disappear due
to the electrostatic effect.
The backup battery does
not charge.
Cuff is not connected
correctly.
The communication
#2 cable is removed.
The dedicated peripheral
is downloading a large
amount of environmental
#2
data for a long time.
Non-standard size
batteries were used.
#1
Caution
88
Treatment
Replace with new
batteries.
Remove batteries and
reinstall them.
Charge for 48 hours
using new batteries.
Check the cuff and air
hose for folding, kinks
and connection.
Confirm that the cable
is connected correctly.
Wait for the end of the
download. It may need
50 minutes at most.
Contact your local
dealer.