Fisher Scientific Isotemp Series User Manual page 76

Error Codes
Table 12-1 Fisher Scientific Incubator Error Codes
Error Message & Code
Incorrect voltage
(E014)
Sensor Error (E100)
Temperature Too High
(E101)
Temperature Not Plau-
sible (E103)
Calibration Value Too
High (E104))
Calibration Value Too
low (E105)
Constant Sensor Sig-
nal (E106)
Constant Reference
Sensor Signal (E107)
Heating Relay Error
(E109)
12-2 Gravity Convection Incubators
Root Cause
The applied voltage is too
high or too low.
The actual measured value
is out of range.
Actual measured value
exceeds permissible range.
The Triac is defective.
The difference between the
control and reference sen-
sors exceeds the maximum
permissible deviation, ren-
dering the measurement
implausible.
The calibration reference
value calculated on the
basis of the user input falls
short of the upper limit for
calibration references.
The calibration reference
value calculated on the
basis of the user input
exceeds the lower limit for
calibration references.
None of the decimal places
of the A/D-converter out-
put for the process sensor
has changed over a spe-
cific time period.
None of the decimal places
of the A/D-converter out-
put for the reference sen-
sor has changed over a
specific time period.
The voltage measurement
has indicated a defect in
the heater circuit relay.
Alarm Response
Audible alarm activated,
error message shown on
display.
Audible alarm activated,
message shown on dis-
play. Control transferred to
reference sensor. If both
sensors are defective, dis-
able all control circuits.
Process protection acti-
vated, control continues on
set value. Audible alarm
activated, E101 message
shown on display.
Device uses the sensor
that indicates the higher
temperature for servo con-
trol. Audible alarm acti-
vated, message shown on
display. Error can be
acknowledged and doesn't
reset.
Fallback to previous cali-
bration reference. Audible
alarm activated, message
shown on display.
Fall back to previous cali-
bration reference. Audible
alarm activated, message
shown on display.
Control transferred to refer-
ence sensor, audible alarm
activated, message shown
on display. If both sensors
are defective, all control cir-
cuits will be disabled.
Control continues on pro-
cess sensor, audible alarm
activated, message shown
on display. If both sensors
are defective, all control cir-
cuits will be disabled.
Device completely inopera-
tive, audible alarm acti-
vated, message shown on
display.
Alarm Clearing Instructions
Apply the correct voltage
as indicated on the name-
plate and acknowledge the
error.
Call service.
If the error occurs repeat-
edly, call service.
Call service.
Check the external refer-
ence sensor for proper
function and replace, if
necessary. If this does not
solve the problem, call ser-
vice.
Check the external refer-
ence sensor for proper
function and replace, if
necessary. If this does not
solve the problem, call ser-
vice.
Call service.
Call service.
Be sure to pull the power
plug and disconnect the
device from the AC mains.
Call service.
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