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Chapter 6. Troubleshooting
1. Error Detection (Alarms)
●
Should any malfunction occur in the autoclave, the error detection circuit will be triggered to
assure safety. Once the circuit is activated, an error number appears on the digital display and the
electronic alarm sounds, indicating the problem. To stop the alarm sound, press the STOP switch.
If an alarm occurs, check the error number and turn off the power switch.
Error Number
Problem
Remedy
E 1
(Lack-of-water
alarm)
・
Lack-of-water
・
Check to see that the pressure is at 0
MPa and then open the lid. After the
heater has been cooled, pour in a
sufficient quantity of water, and repeat
operations from the beginning.
・
Piping is clogged by a bag such as the
waste disposal bag.
・
Whenever a bag, such as a waste
disposal bag, is used for sterilization.
put it in the wire mesh basket and place
the basket in the working chamber.
E
2
(Temperature
sensor wire
breakage alarm)
・
Temperature in the working chamber falls
below the freezing point.
・
Adjust room temperature at the
installation site to 5 ~ 35
℃
.
・
Disconnection of temperature sensor for
control.
・
Contact our authorized distributor in
your region.
E
3
(Over-temperature
alarm)
・
Temperature in the working chamber
exceeded the upper limit of the working
temperature range by +3
℃
or more.
・
A tempe5
℃
or more above the
set temperature continued for 10
seconds during sterilization.
・
A tempe10
℃
or more above the
set temperature continued for 15
minutes during warming.
E
4
(Over-cool alarm)
・
A temperature of 102
℃
or less continued
for 10 seconds during sterilization.
E
5
(Over-pressure
alarm)
・
When saturated steam pressure under
the set temperature exceeded
+0.025MPa or above for more than
15 seconds.
・
When pressure of 0.01MPa or more is
detected in the state that the lid opens.
・
Whenever a bag, such as a waste
disposal bag, is used for sterilization,
put it in the wire mesh basket and place
the basket in the working chamber.
・
Piping is clogged by a bag such as the
waste disposal bag.
E
6
(Lid trouble alarm)
・
The lid does not close within 30 minutes
after start of operation.
・
Check to see if any foreign substance is
caught.
・
When the lid opens during operation
・
Contact our authorized distributor in
your region.
・
Defects of the lid switch
E
7
(Automatic exhaust
valve trouble alarm)
・
The automatic exhaust valve continued
closing for 10 seconds.
E 9
(Sterilization heater
trouble alarm)
・
Temperature in the working chamber
has not reached a set sterilization
temperature after 5 hours has
elapsed from operation start-up.
・
Reduce the quantity of objects to be
sterilized and repeat operations
from the beginning. If this error
reoccurs after all measures have
been taken, contact our authorized
distributor in your region.
E
(Power failure)
・
When power supply is shut off during
operation
・
Redo the operation from the beginning.
Summary of Contents for Hirayama HG-50
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