Operator’s manual
October 2012
21
5 Error messages
Certain problems could be highlighted during the auto-test and are shown by an
acoustic alarm and a code formed by LED’s associated to the reading cells. These
signals do not allow the analytical operation and the technical service assistance
department must be advised in order to check the problem.
These signals are coded with a brief description about their significance. The RRV
indication, for example, means that the LED associated to the reading cell is green
while the other two are red.
Code
Description
VRV
Corrupted EEPROM analysis
RRV
Modification to the version of the data trace
RVR
Memory error of the personalisation analysis
RVV
Hardware error on the display
VRR
Non-identifiable error of another type
NOTE!
A specific case can occur when a particular sequence RRR occurs during
the normal use of the instrument and not only during the start up. This
sequence indicates overheating of the instrument and therefore a
temperature of more than 41°C / 105.8°F. In this case it is necessary to
switch off the instrument, let it cool down and then switch it on again. If the
problem persist, <please contact the technical assistance department for
repairing.
In the following are summarized the instructions to be followed in case specific
problems occur. For any other problem it is possible to contact the cdR technical
assistance department.
PROBLEM CHECK
Problem
Check
The instrument does not
switch on – the display
does not show any
information
After having checked the connection of the power plug,
check if that there is a power supply at the input entry of the
adapter (230 Vac) and also at the instrument (12Vdc). If
necessary, substitute the external adapter with a similar one
that has the same characteristics and check the polarity.
The instrument does not
print
Check if the roll of thermal paper is present and correctly
inserted.
It is not possible to enter
into the analysis key 3 and
into the absorption key 5
The instrument has not reached the operating temperature.
20 minutes are necessary for the instrument to reach the
temperature from switching on to being in an operational
mode.
The readings are not
aligned to historical data
Attention! The calibration procedure of the instrument is very
simple but must be carried out correctly. Ensure that during
the calibration the reading cells are not occupied by cuvettes
