Across International AccuTemp Series, Руководство пользователя, Страница: 21 / 30

ACCUTEMP SERIES 480°F VACUUM DRYING OVEN USER’S MANUAL
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Issue Reason Solution
No power
Oven is turned off.
Check circuit breaker and turn on oven. Make
sure oven is getting enough power to turn on.
Broken power cord or loose plug. Change or secure the power cord.
Circuit breaker is off Turn on circuit breaker, located on back of oven.
PV window displaying
“-----”, “LLL.L” or
“HHH.H”
Faulty temperature sensor or loose connection Check connection or change temperature sensor
Faulty temperature controller If the temperature sensor is OK and connection is
good, replace the temperature controller.
Unit failed to heat Dwelling time is over Reset dwelling time and restart the oven.
Loose connection on temp controller Check and make sure all connections are secure.
Faulty controller
Replace temperature controller.
Faulty heating element Replace heating elements.
Parameter error
Reset all parameters to factory setting using
parameter table #4.
Temperature control
failure
Loose connection on temperature sensor
Check all connections.
Faulty controller Replace temperature controller.
Target temperature too low Set a higher target temperature.
Abnormal alarming for
oven temperature
Faulty controller Replace temperature controller.
Large temperature
difference between oven
display (PV) and
temperature measured
by yourself with a
thermometer placed
inside of the oven.
Temperature and condition of your current
working environment is different than the
environment your oven was initially calibrated
Perform an Auto-Turn (AT) as described in
section 6.3 above
Oven was not turned on long enough
Perform temperature measurement 30 minutes
after oven reaches its target temperature, this
allows temperature inside the oven to stabilize.
Your temperature sensors were placed incorrectly
Place temperature sensors in the middle of the
oven shelves.
Your infrared gun is not used correctly or not
properly calibrated
Make sure your infrared gun is calibrated
correctly. Shooting an infrared gun across the
oven window glass may give you incorrect
readings. Try using a regular thermometer
instead.
If solutions above do not fix the difference
Perform a “Calibration by formula” as described
in section 6.4 above
Parameter error
Reset all parameters to factory setting using
parameter table #4 in section 7