5
Functional Checks
5.1
Service interval
AT-10 plus
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5 Functional Checks
5.1 Service interval
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.
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.
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.
Interval
Service
Responsible
Every 6 months
• Visual inspection of the unit and cables (see page 34).
• General unit integrity check (see following).
«
User
Every 12 months
• Electrical safety tests according to IEC 60601-1, Clause 18 and 19 (see
• The visual, general, measuring and calibration tests and checks ac-
cording to the checklist at the end of this book (see page 73).
«
By SCHILLER AG author-
ised technician
V
Comprehensive instructions for operating the unit are provided in the AT-10 plus
User Guide. This are available from SCHILLER on request.
•
Patient simulator.
