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5
Functional Checks
5.1
Service interval
Interval
Service
• Visual inspection of the unit and cables (see page 34).
Every 6 months
• General unit integrity check (see following).
• Electrical safety tests according to IEC 60601-1, Clause 18 and 19 (see
page 41).
Every 12 months
• The visual, general, measuring and calibration tests and checks ac-
cording to the checklist at the end of this book (see page 73).
Page 32
5 Functional Checks
5.1
Service interval
The device must be checked at regular intervals. The test results must be
documented and be compared with the values in the accompanying documents.
The following table gives information about interval and competence of maintenance
which can be required.
5.2
General unit integrity check
The procedure detailed here is a general confidence check of the unit if a fault is
suspected. It is not a full functional test but is intended to provide a general confidence
check in all the main functional areas.
Comprehensive instructions for operating the unit are provided in the AT-10 plus
User Guide. This are available from SCHILLER on request.
Patient simulator.
•
1.
Connect mains power to the unit and ensure that the (green) mains LED lights.
2.
Switch the unit on by pressing the On key. Ensure that after a few moments the
LCD screen lights and the ECG acquisition screen is displayed.
3.
Check the screen for missing pixels.
4.
Using the SCHILLER patient cable, connect the patient simulator to the unit and
switch the simulator on.
5.
Check that ECG traces are displayed on the screen
6.
Start an automatic ECG recording in Auto Mode Format, press the Auto Start
key. After approximately 10 seconds, a printout(s) is given and the result
displayed on the screen (dependent on setup, see page 51).
7.
Check the printout for faulty pixels.The ECG data remains in the temporary unit
memory until it is overwritten by another recording or the unit is switched off. The
interpretation statements can be edited and further printouts obtained in different
formats all the time the ECG is stored.
To obtain a second copy in format 1 press the Copy 1 key.
To obtain a copy in format 2 press the Copy 2 key.
AT-10 plus
Responsible
User
By SCHILLER AG author-
ised technician
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