15
Decalcification and change of filter (see sections 6.4, 6.5) should be carried out immediately by the user when required.
Safety-related inspection
The safety-related inspection must be performed according to §4 clause (4) of the Medical Device Operator Ordinance, after each
maintenance measure.
The safety-related inspection must be performed to guarantee safety and operational reliability of the most important constructive
and functional features, as far as they can be influenced by maintenance measures.
However, according to §6 clause (1) of the Medical Device Operator Ordinance, the inspection must be performed at the leat once
a year.
6.0 Maintenance and service
6.1
Safety-related inspection
Test
Shut-off main water tap and observe temperature indication.
After a few seconds error signal will appear "E1" (= no water).
Testing the displays.
All optical and audible indicators issue their signal during the first second after switching on (in particular
segmental test "8 8 ").
Set all temperature setting switches on 40°C and test consecutively by touching the corresponding keys
whether in all ranges 40°C is reached in ACTUAL temperature indication.
• Spray off and check water temperature by hand.
• Carry out the same test with temperatures 37°C and 28°C.
Measure temperature of water splashed off at standard settings: 30°, 37° and 44°C.
The value may not deviate more than ± 0,5° ± 1/2 digit, i.e. 1°C in total. Typically, however, values are better
than ± 0,5°C.
This measurement is critical!
Measuring probes or thermometers which are too large may cause faulty measurements because of substantial
heat removal, inertia, and because their temperature sensitivity is not localised on a point but spread over a larger
surface. Instruments whith an immersion probe, a precision of 0.3°C and a resolution of 0.1°C or better are
suitable.
After setting the temperature, at least 1 minute should be waited in order that the double-barrelled hose to the
handle attains correct temperature.
See also chapter 4.0!
