User`s guide
M3000A/M3046AM3015A/M3016A Service Guide
4-22 Testing the Instrument
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This test checks the operation of the Nurse Call Relay. The Nurse Call Relay test is required
once every two years and when the Instrument is repaired or when Instrument parts are
replaced.
The Nurse Call relay functions as follows:
• Standard Operation—Relay open.
• Alarm Condition—Relay closed.
7RROVUHTXLUHG Ohmmeter.
6WHS Plug a phono connector into the Nurse Call Relay connector.
6WHS Connect the ohmmeter.
6WHS If no alarm occurs, the relay contacts are open.
127( When an alarm occurs, the relay contacts close.
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This test checks the performance of ECG synchronization between the Monitor and a
defibrillator. The ECG sync performance test is required once every two years and when the
Instrument is repaired or when Instrument parts are replaced.
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• Defibrillator with ECG Sync and Marker Output.
• Patient simulator.
6WHS Connect the patient simulator to the ECG connector on the Measurement server and
the defibrillator to the ECG Sync Output on the M3046A.
6WHS Set the Patient simulator to the following configuration:
— HR = 100 bpm.
— ECG sinus rhythm.
6WHS Switch the defibrillator to simulation mode.
6WHS Check that the marker pulse is displayed before the T-wave begins.
A typical display is shown in the following illustration.