30
Fractioned vacuum alarm
This alarm indicates that vacuum was not created inside the
chamber 09
.
This alarm is displayed during a cycle, during a vacuum pulse in the fractioned vacuum
phase, when the pressure does not drop to the correct value in the expected time.
•
Check that the total maximum load weight was not exceeded and that the materials
forming the load are compatible with the selected cycle (see USE AND MAINTENANCE
MANUAL, chapter OPERATING USE), for example, NEVER mix fabrics with solid materials.
•
Check correct positioning of
fans 42
.
•
Check the sterilizer is sufficiently ventilated (in particular if built-in).
•
Check that the
vacuum pump 41
is properly powered and that it works correctly.
Sterilization temperature band alarm: overtemperature
/
undertemperature
Both alarms indicate that the temperature is out of the sterilization band (tolerance)
defined by EN 13060. This standard defines the tolerance band (0°C - +4°C) from the
setting value during sterilization. For example, if the setting is 134°C, the temperature should
be in the band 134°C-138°C.
The sterilizer displays one of these alarms during sterilization when the temperature in the
chamber 09 and/or the theoretic steam temperature are out of the tolerance band.
This alarm could be generated by incorrect temperature and pressure values.
•
If the UNDERTEMPERATURE alarm appears, check that the load weight does not exceed
the maximum value allowed (see USE AND MAINTENANCE MANUAL, chapter
OPERATING USE).
•
Check sterilizer temperature and pressure.
Temperature adjustment
The temperature displayed must be 0.5°C lower than the actual temperature in the
chamber 09
.
To adjust the temperature, firstly calibrate the
chamber temperature probe PT1 39
in the
Technician Menu, options 3 (Board calibration PT1) and 7 (Probe calibration PT1).
If the temperature is still not correct, adjust the Correction parameter in the Technician
Menu (see step 1 and 2) or replace the sensor (step 3).
1. Using an external tool
- Remove the sterilizer from the unit (if it is built-in) and remove the covering.
- Loosen and remove one of the
inspection plugs 40
on the
chamber 09
.
- Insert the probe of the external tool checking its tightness and place it in contact with the
end of
temperature probe PT1 39
. Alternatively, wireless probes may be used. These are
introduced into the sterilization chamber and do not require assembly.
- Start an operating cycle and check the values. This operation should preferably be
performed with Cycle 134 HOLLOW/POROUS, because the pressure in this cycle is best
aligned to the saturated steam curve.
- Adjust the temperature using the Correction parameter in the Technician Menu (option 10).
Alarms
Summary of Contents for Sterilclave 6 B Speedy
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Page 58: ...58 Wiring diagram 6 B SPEEDY Diagrams and wirings...
