Thermo Scientific Heratherm IMH 60 Operating Instructions Manual page 110

Error Codes
Table 12-1 Heratherm Incubator Error Codes
Error Message & Code
Heating Triac Error
(E110)
Temperature Too High
(E111)
Sensor Error (E112)
Sensor Error (E113)
ADC Error (E114)
Watchdog error (E115)
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Clearing should mute the audible alarm, de-energize the alarm relay, and clear the message from the control panel display.
12-4 Heratherm
Root Cause
The voltage measurement
has indicated a defect in
the triac
The actual measured value
exceeds the upper limit of
the permissible error range.
The measured actual value
is out of range.
Sample sensor damaged.
The actual measured value
is out of range.
A/D converter does not
supply a plausible output.
Measurement across refer-
ence resistor has failed.
ADC converter may be
defective.
Watchdog test failed on
power-up.
Alarm Response
Audible alarm activated,
alarm relay energized,
message shown on dis-
play. Overheat protection
activated to prevent
destruction of the samples.
Audible alarm returns upon
acknowledgement.
Audible alarm activated,
alarm relay energized,
message shown on dis-
play. Heater turned off until
upper limit of hysteresis is
recovered. Servo control
operations continue. Alarm
can be acknowledged, and
goes away when the differ-
ence between the actual
and set values ceases to
exist. Note: This error does
not indicate a defective
triac.
Audible alarm activated,
alarm relay energized,
message shown on dis-
play. Control continues on
process sensor. If both
sensors are defective, all
control circuits will be dis-
abled.
Audible alarm activated,
alarm relay energized,
message shown on dis-
play.
Audible alarm activated,
alarm relay energized,
message shown on dis-
play. All control circuits dis-
abled.
Audible alarm activated,
alarm relay energized,
message shown on dis-
play.
Alarm Clearing Instructions
Call service and switch the
device off.
Open the door to speed up
cool-down. Check whether
the device was loaded with
a hot object, if so, remove.
Ensure that the equipment
was operated with at least
one perforated shelve and
with the door not opened
longer than 10 min. If this
doesn't solve the problem,
call service.
If error does not go away,
call service.
Call service.
Call Service.
Call service.
Thermo Scientific
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