Mediana YM6000, Руководство по обслуживанию

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22 Performance Verification
YM6000 Service Manual
Measurement Parameter Operation Tests
ECG Operation
1. Press Power button to turn on the monitor.
2. Connect 3 ECG leads to appropriate jacks on ECG simulator.
3. Connect leads to Mediana ECG cable.
4. Connect Mediana ECG cable to ECG connector on the monitor’s front panel.
5. Set ECG simulator as follows:
z
Heart rate: 30 bpm
z
Amplitude: 1 millivolt
z
Lead select: II
z
Normal sinus rhythm
z
Adult mode
6. After normal power ‐ up sequence, verify that the following monitor reactions:
a. After about 15 seconds, the monitor displays a heart rate of 30 ±3 bpm.
b. Verify that audible alarm sounds and that “ HR: Lower limit violated ”
message displays on the message area.
c. Verify that the HR/PR numerical area flashes and that the heart rate is below
default low alarm limit (medium priority alarm).
7. Increase the heart rate setting on ECG simulator to 240 bpm.
a. After about 15 seconds, verify the monitor displays heart rate of 240 ±3 bpm.
b. Verify that audible alarm sounds and that “ HR: Upper limit violated ”
message displays
c. Verify that the HR/PR numerical area flashes and that the heart rate is above
default high alarm limit (medium priority alarm).
8. Decrease the heart rate setting on ECG simulator to 120 bpm.
a. After about 15 seconds, verify the monitor displays heart rate of 120 ±3 bpm.
9. Disconnect the LL lead from ECG simulator.
a. Verify that the “ ECG: Check ECG leads & electrodes ” message appears, that
three dashes are displayed in the HR/PR numerical area, and that low
priority audible alarm sounds.
b. Reconnect the LL lead to ECG simulator. Verify that “ECG: Check ECG leads
& electrodes” message no longer appears and that the audible alarm is
stopped.
c. Repeat this test for the LA and the RA leads.
10. Connect all the leads to the monitor.
a. Select ECG waveform menu and set Lead select to Lead I.
b. Verify that the lead selection is displayed on the ECG waveform area.
c. Repeat step 10 ‐ a for all the ECG Lead selections.
11. Set ECG Lead selection to Lead II.
12. Change ECG waveform size to all the selectable sizes and verify that an appropriate
size is displayed on the ECG waveform area.