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M3500B/M5500B Service Manual
Functional Checks
The following functional checks exercise the basic functions of the defibrilla-
tor/monitor. They are intended as a broad check of the unit's performance, and
are designed to complement (not replace) the Diagnostic Tests described later.
If all elements of a test pass, record that test as a PASS and return to the main
diagnostic menu by pressing
shooting and repairing the unit as needed. See "Troubleshooting"
on page 3-1.
ECG Functional Checks
This section describes how to check the operation of the ECG functions. Each
of the ECG checks assumes the unit and the simulator are still set up as they
were at the end of the previous ECG check.
To check ECG display and Heart Rate (HR) functions:
1. Connect the ECG simulator to both the Pads input and the 3- or
5-lead ECG cable. Set the simulator for normal sinus rhythm (NSR), 1mV
amplitude, at some nominal rate (e.g., 60 bpm).
2. Set the M3500B/M5500B to Manual operating mode (not Diagnostic
Mode).
3. Using the
LEAD SELECT
ECG with a clean baseline for both Pads and Lead II.
4. Verify the Heart Rate (HR) displayed is correct.
5. Disconnect the ECG simulator from the pads cable and verify that the dis-
play shows a dashed line in place of the waveform and that the unit both
alarms and gives the Pads Off message.
6. If using a 5-lead ECG cable, set the defibrillator to monitor from the V
lead.
7. Disconnect each of the ECG leads from the simulator one at a time, and
verify that the display shows a dashed line in place of the waveform and
that the unit both alarms and gives the Leads Off message.
To check ECG printing functions:
1. Reconnect the simulator.
2. Print a strip and verify that the strip shows a normal ECG with a clean
baseline.
3. Verify that the date, time, and configuration information printed at the top
of the strip is correct.
Performance Verification
. If there is any failure, begin trouble-
MAIN
softkey, verify that the display shows a normal
2
2-13
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