Mocom B CLASSIC - Page 39

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EN
TECHNICAL MANUAL - B CLASSIC / B FUTURA / S CLASSIC
ALARMS
LCD H 406 Indication Alarm description Effect / Symptom
PRESSURE BELOW
MINIMUM LIMIT
Pressure below the MIN limit
during the sterilization phase.
Pressure is lower than 1.03 and 2.02 bar (for
cycles at 121 and 134°C).
Possible causes / Checks Solution
Steam generator is not
working properly.
Steam generator is
becoming clogged.
Solenoid valve EV6 does
not open properly.
Vibration pump is not
working properly.
Check steam generator.
Check generator resistor wiring.
Check EV6 activation.
Check vibration pump.
To perform this check, it might be a good idea to activate vacuum pump and EV6 from
menu SERVICE/COMPONENT TEST/OTHER COMPONENTS – SQ 17, that lets you
detect water owing through the generator and into the chamber.
See ST1-Steam generator datasheet.
There is air seepage
through door gasket.
Clean door gasket and steel ledge thoroughly.
Change door seal.
Firmware version not
updated.
Check/update autoclave FW version – see ST7-FW update.
Card is damaged. Change card.
There is steam seepage
through the pipes
connected to the chamber.
Check pipes connected to chamber rear/lower side and their ttings.
LCD H 410 Indication Alarm description Effect / Symptom
TIMER PROBLEM
Wrong retention time during
sterilization phase.
Difference between Processor Time and Real Time
Clock is greater than 2 seconds.
Possible causes / Checks Solution
Pressure transducer is
damaged.
Change pressure transducer - see ST4-MPX_PRESSURE SWITCH datasheet.
The electronic card is
damaged.
Change the electronic card.
LCD H 990 Indication Alarm description Effect / Symptom
EXCESSIVE PRESSURE
Excessive inside sterilization
chamber.
Pressure is higher than 2.38 bar.
Possible causes / Checks Solution
Pressure transducer is
damaged.
Change pressure transducer - see ST4-MPX_PRESSURE SWITCH datasheet.
The electronic card is
damaged.
Change the electronic card.
LCD H 991 Indication Alarm description Effect / Symptom
PT1 OVERHEATING
PT1 overheating (sterilization
chamber).
Temperature inside chamber exceeds 138°C.
Possible causes / Checks Solution
Chamber temperature
sensor PT1 is damaged.
Change sensor PT1 – see ST5-PT1 datasheet.
Vibration pump is not
working properly.
Solenoid valve EV6 does
not open properly.
Check EV6 activation.
Check vibration pump.
To perform this check, it might be a good idea to activate vacuum pump and EV6 from
menu SERVICE/COMPONENT TEST/OTHER COMPONENTS – SQ 17, that lets you
detect water owing through the generator and into the chamber.
The electronic card is
damaged.
Change the electronic card.