Operating Manual - John Morris Scientific
Operating Manual - John Morris Scientific
Operating Manual - John Morris Scientific
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Troubleshooting guide / Error messages<br />
ALARM<br />
CODE 05<br />
Internal working<br />
sensor shurtcircuited<br />
or<br />
interrupted.<br />
<br />
Cable of the working temperature sensor interrupted or shortcircuited.<br />
ALARM<br />
CODE 06<br />
Difference between<br />
working- and safetytemp.<br />
Bigger than<br />
permissable value.<br />
<br />
Defect of the working or excess temperature sensor.<br />
Working temperature and excess temperature sensors report a<br />
temperature difference of more than 25 °C.<br />
ALARM<br />
CODE 07<br />
The internal I2C<br />
bus-system shows<br />
a failure.<br />
<br />
Other errors (I 2 C-BUS errors)<br />
ALARM<br />
CODE 12<br />
Error in A/Dconverter<br />
of the<br />
internal measuring<br />
system.<br />
<br />
Error in A/D converter<br />
ALARM<br />
CODE 14<br />
Working temperature<br />
exceeds the adjusted<br />
safety temperature.<br />
<br />
<br />
Excess temperature sensors defect.<br />
The excess temperature value lies below the working temperature<br />
setpoint. Set the excess temperature to a higher value.<br />
ALARM<br />
CODE 15<br />
External control<br />
selected, but ext.<br />
sensor not connected<br />
or defective.<br />
<br />
External control selected, but external Pt100 sensor not connected or<br />
defect.<br />
WARNING<br />
CODE 20<br />
<br />
Cooling of the condenser is affected. Clean air-cooled condenser.<br />
Check the flow rate and cooling water temperature on water-cooled<br />
condenser.<br />
64
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