022009
45
Error code Description
Cause
Effect
Solution
Er 24
Heating plate temperature has ex-
• SAFE TEMP H (Probe) is set a tem-
Heating OFF
• Allow the heating plate to cool.
ceed the SAFE TEMP H (Hotplate)-
perature lower than the heating plate
• Set SAFE TEMP H (Hotplate) to a
setting
actual temperature.
higher temperature.
• Breakage of the heating plate tempe-
rature control sensor
Er 25
Heating switching element
• There is a short-circuit in a switching
Heating OFF
• Switch off the unit. Allow it to cool down
monitoring
element (Triac) of the heating control
and then switch on again.
circuit
• Safety relay has shutdown the heating
circuit.
• The heating or the connection is
broken
• The heating plate safety temperature
sensor is broken.
Er 26
Difference between the internal
• Irregular temperature distribution on
Heating OFF
• Switching off the unit. Allow in to cool
heating plate control and safety
the heating plate due to point heat
down and then switch on again.
temperature sensors is too large
dissipation
• When using metal blocks on the heating
• Fault in the control or safety tempe-
plate surface, ensure regular heat
rature sensors.
dissipation
Er 31
Fault in the heating switch element
Heating OFF
(Triac)
Er 41
Stirring bar breakaway
• Stirring bar has broken away on four
The setpoint speed is
• Select a lower speed setpoint.
consecutive occasions without any
reduced to 300 rpm
• Kleineres Rührstäbchen wählen
changes to the setpoint value.
(min.)
Heating OFF
WD
In remote operation (PC) with
• PC does not send OUT_WDx@m
The setpoint temperature
• Change the watchdog time.
(Watch watchdog function 2 enabled:
data during the watchdog time
is set to the WD safety
• Send data from the PC within the
Dog)
No communication between PC
• The connection/cable to the PC is
temperature
watchdog time (OUT_WD@m).
and RET control / t
broken
The setpoint speed is set
• Check the connector cable and plug.
to the WD safety speed
Содержание RET control/t
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