29
If the steam keeps leaking, pressurise the sterilizer and locate the leak by following these
steps:
- Close the previously checked chamber door properly.
- Remove the cover from the sterilizer.
- Excite the coil of solenoid valve
EV2
(see wiring diagrams) with an external power
cable at 230V: it should be normally open
NO
.
- Remove one of the
inspection plugs 40
and connect a compressor (2 ÷ 3 bar).
- Introduce compressed air and hold the chamber pressurised for approximately 15
minutes.
- Locate the leakage by observing the unit.
•
Check the pressure/temperature alignment during a cycle (see STERILIZATION
TEMPERATURE BAND ALARMS).
•
Run a VACUUM TEST to check for pressure losses.
Pressurisation alarm
This alarm indicates that the temperature has not increased properly in the
chamber 09
during the steam phase (steam or pressurisation peaks).
The sterilizer may display this alarm during a cycle, during steam phases, when the pressure
does not correspond to the saturated steam curve.
•
Follow the instructions in the INSUFFICIENT STEAM ALARM solution.
•
If the alarm persists, there could be a fault in the heating circuit. Check that during
pressurisation or steam peaks (fractioned vacuum), the chamber internal coil is
correctly powered (see wiring diagrams).
PT1 overtemperature alarm
The alarm indicates that temperature inside the
chamber 09
has exceeded 150°C.
The sterilizer displays this alarm when the temperature reaches 150°C.
•
Check that the wires of the
temperature probe PT1 39
and the
transducer 38
are
neither disconnected, nor worn or faulty.
•
Check the correct load positioning, which should be correctly arranged on the
supports.
Insufficient vacuum alarm
This alarm indicates that during the pre-vacuum phase, the pressure did not drop to the
correct set value.
This alarm is displayed during the pre-vacuum phase of a cycle when the pressure does not
drop to the correct value in the expected time.
•
Check the efficiency and cleanliness of the
chamber gasket 31
and of the flange of
the
chamber 09
on which it is fitted.
Replace if damaged.
•
Check the
vacuum pump 41
((see ADDITIONAL CHECKS AND SETTINGS – Vacuum
Pump).
•
Check correct positioning of the
drain filter 20
and its cleanliness.
•
Check correct positioning of
fans 42
.
•
Check that the sterilizer is sufficiently ventilated.
Alarms
Summary of Contents for Sterilclave 6 B Speedy
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Page 6: ...6 Graphical reference representation Mod 6 B SPEEDY Contents...
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Page 57: ...57 Diagrams and wirings...
Page 58: ...58 Wiring diagram 6 B SPEEDY Diagrams and wirings...
