VWR PROFESSIONAL Serie Manuel D'instruction page 17

T S
ECHNICAL ERVICE
Error
E6 An "E6" error means there is an internal electronics system
error.
E7* An "E7" error means the probe is not able to reach set point. It
could mean the probe is out of the sample, or the temperature
of the probe doesn't rise after a certain amount of time, or the
probe temperature falls when the heater temperature is rising.
E8 An "E8" error means the unit had a catastrophic over
temperature condition or temperature runaway condition
(temperature greater than 600°C) and therefore automatically
shuts down to prevent damage.
E9 An "E9" error means the heater failed. This might occur if
heater temperature fails to rise when asked to, or there is a
sudden drop in heater temperature for no apparent reason.
PF AC power failure
* When using probe control, the temperature setpoint should be adjusted to the desired sample temperature. If the temperature setpoint is higher than the
sample can achieve, an E7 error will occur. Reduce sample volume or temperature setpoint value. For Example: Water has a theoretical temperature limit of
100°C (boiling). A temperature setpoint greater than 100°C will cause an E7 error.
Cause of Error
This error cannot be fixed by the end user. Please contact your VWR
representative for repair.
Reset the unit by pressing the heat on/off button twice. Also make sure probe
is in the sample. If it still does not work, please contact your VWR
representative for repair.
This error cannot be fixed by the end user. Please contact your VWR
representative for repair.
This error cannot be fixed by the end user. Please contact your VWR
representative for repair.
Unit will go into standby and all functions will be shut off. Press the standby
button to clear the PF error code. Then press the standby button to turn the
unit back on. The heating and stirring functions must be restarted.
How to Fix
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