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6.3 CLEANING/REPLACING THE WATER INLET FILTER
To carry out the clean or the replacement of the filter mounted left side the
front panel, proceed as follows:
- Drain completely the main tank by plugging the supply tube into the lower
fast fitting (white) of the front panel.
- Pull the black cap (1) on the filter seat; pay attention for possible water
outflow from the internal tubes. The filter is fitted on the cap
- Clean the filter (3) by compressed air (or ultrasonic cleaner) or replace it
if damaged.
- Remount the cap, taking care that it is fully inserted.
- Fill the main tank with demineralized water as for the standard operation
6.4 REGULAR STERILITY TESTS
During the factory tests and according to the standing regulations, the sterilizers are deeply tested and the
calibrations checked; these tests warrant the sterilizer performances except for unauthorized interventions,
tampering or an improper usage. Although the unit is equipped with an advanced diagnosis and process
evaluation system, is user responsibility of checking periodically the performance in the course of the equip-
ment life. The frequency of these checks is regulated at local country level; check the regulations in force.
The norm references for the tests is EN13060 ch. 10.6 for the B type cycles and ch. 10.5 for the S type
For any explanations or information, contact your authorized reseller or directly NSK.
6.4.1 Porous load test (B&D)
The test can be performed at any time with the sterilizer turned on and operating.
- Load the sterilization chamber with a B&D test (i.e. 3M
TM
COMPLY
TM
cod. 1300) according to the
standards for the test procedure.
- Select the T
TEST CYCLE
and hold the key Start/Stop.
The test cycle starts with cycle phases characterized by 3 pre-vacuum pulses, process temperature of 134°C
and process time of 3,5 minutes.
Simulators of the B&D test are available on the shelf, developed for big sterilizers and equivalent to a
texture load of 7Kg; it is clear that the chamber dimensions do not allow such a load, but a positive re-
sult of this test is indication of efficient sterilizer features.
6.4.2 Vacuum Test
We suggest to carry out the test at the beginning of the working day in order to check the chamber and
system tightness.
The test should be started with equipment in stand-by mode (OFF on the display) and chamber temperature
lower than 35°C (normal conditions at the beginning of the working day).
- Hold the START button for more than 5 seconds
- The vacuum test starts automatically and takes about 15 minutes.
In case of negative result, the display Alarm/Time will show TEST FAIL to warn for insufficient tightness of
the chamber (see Chapter 8 - Alarms).
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