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(4)Descriptions of safety device actuation
eCaution sions
Caution Sian
Disolav Condition
Cause/Checkina/Remedv
Lid
Cover is not closed comDletelv.
Press down the handle by force.
When the START button is pressed, the
Press the START button after the temperature in
Hot
temperature in the chamber is higher than the
the chamber has lowered.
nreset temnerature.
Due to bending or clogging of the exhaust hose,
Pull put the exhaust tank and correct
HOSE
abnormal pressure was detected more than 7
the bending of hose. Check the exhaust circun
times durin" heatin"
for anv cloaaino.
(j)Operation is started without opening the cover
(j)()nce open the cover and start the operation.
door
immediately after power-ON.
®Replace the lock shaft detection switch.
®Trouble with the lock shaft detection switch
eError
sians
Enror Sian
Disolav Condition
Cause/CheckinaiRemedv
El
Lateral thermistor (TH1)
Lower than 21"C Smin. after the bottom
' Check the thermistor (TH1).
Open
thermistor becomes 90·C.
' Check the thermistor (TH1) connector.
E2
Bottom thermistor (TH3)
Lower than 21'C for 2min. after starting
, Check the thermistor (TH3).
Open
and 2 min elapsing.
' Check the thermistor (TH3) connector.
E3
Lateral thermistor (TH1)
Higher than 139'C
' Check the thermistor (TH1).
Abnormal temp.
' Check the Triack.
E4
Object temp. sensor
Higher than 140'C
' Check the thermistor (TH2).
(TH2) Abnormal temp.
' Check whether or not the tip of the
object temp. sensor
lips
down into
the heater unit.
E5
Bottom thermistor (TH3)
• Higher than 110'C in heating I,
• Check the thermistor (TH3).
Abnonnal tamp
keep-warm process.
• Check whether or not the exhaust port
• Higher than 120'C in heating 2,
is blocked with sterilization object.
exhaust process.
• Isn't the amount of heating water
• Higher than 140'C in heating 3, heating
reduced and isn't the chamber is
4,
sterilization process.
heated wnhout water?
• Or, higher than set temp.+30·C
• Check for leakage of steam or water.
E6
Unlocking of the movable
The detection switch is not turned OFF
• Doesn't the lock pin catch?
handle is impossible.
even when the power supply to the
• Check the cover swoch.
solenoid is turned ON and the solenoid is
unlocked.
E7
Locking of the movable
• The detection switch is not turned ON
• Doesn't the lock pin catch?
handle' cover is
even when the power supply to the
• Check the cover swnch.
impossible.
solenoid is turned OFF and the
• Check the lock shaft switch.
solenoid is locked.
• Lid detection switch is turned OFF
during operation.
• Lock shaft detection switch is turned
OFF durina oDeration.
E8 Abnormally high
• Pressure in the chamber is higher than
• Sterilization object which makes the
pressure
about O.33MPa.
exhaust difficult.
• Pressure in the chamber is O.04MPa
• Exhaust circuit is clogged.
higher than the saturated steam
• Exhaust port is blocked with the
pressure in the temperature
of
the
sterilization bag.
lateral thermistor at heating 4 and
sterilization processes.
• Deep sterilization can is used.
E9
Low pressure
• Pressure in the chamber is O.04MPa
• Shortage of heating water.
lower than the saturated steam
• Exhaust circuit is blocked.
pressure in the temperature of the
lateral thermistor at heating 3 ,heating
4 and sterilization processes.
El0 EEPROM communication
Nothing can be read out or written from
• Check and replace PCB.
error
or on EEPROM.
- 19-
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