500 D 01/2012
30a
3.8 Troubleshooting
Message
Explanation
Suggested remedy
recharge battery
battery voltage is below the
minimum
recharge battery with the charger
for about 14 h; photometer can be
operated during charging
memory
full
the memory of the photome-
ter contains the maximum of
500 data sets
accept message by pressing
OK
and continue measurements without
storage or in the method selection
mode call up memory administration
by pressing
MEM.
,
transfer and then
delete the contents of the memory. If
required, storage can be completely
deactivated in the configuration
mode.
calibrate?
deviation(s) found during
self-check
start calibration by pressing key
OK
check filter
serious deviation(s) found
during self-check or cali-
bration
restart calibration from the con-
figuration menu. If error remains,
contact your local distributor for filter
replacement
lamp defective
no light at the photo cell
if necessary, replace lamp, then
recalibrate system
please remove
cuvette
cuvette in the optical path at
a wrong time
no cuvette in the beam
scanner did not recognize cuvette,
remove cuvette and insert again
cuvette without barcode, manual op-
eration required (see chapter 3.3.2)
cuvette control defective
check: cuvette
method and cuvette size do
not correspond
select proper method or proper
cuvette
check: >->>->>>
too much light at the photo
cell
have the instrument adjusted
check: <-<<-<<<
no light at the photo cell
sample solution too dark
filter defective
lamp defective
photometer does
not respond
although it is
switched on
system hangs
press reset push button in the back
of the instrument; then switch on
again.
