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NOTE
NOTE
M3500B/M5500B Service Manual
Changing settings
To change the settings of Selected lead or AC Line filter, press the
softkeys to highlight the parameter, then press (and release)
it. After a few seconds the highlighted selection will begin to blink, and the
and
softkeys will allow you change the selection to another of the
values available. When the value you want is displayed, press
that value. The available choices for Selected Lead will depend on whether
the unit is configured for 3-lead or 5-lead ECG monitoring.
These changes are only temporary, and will not override the configuration set
by the user in the Configuration screens.
ECG Status messages
The 3 status messages (Lead FE, Pad FE, DSP) should all be GOOD.
The Leads FE test checks that communication is working between the
Leads Front End (FE) and the Digital Signal Processor (DSP).
The Pads FE test checks that communication is working between the
Pads FE and the DSP.
The DSP test checks that communication is working between the DSP
and the rest of the monitor.
DC Offset
This test is for manufacturer's use only and should be ignored.
ECG amplifier tests
These tests measure both the gain and the noise of the two ECG amplifiers
(Leads and Pads). Both use the Peak to Peak reading.
The Peak to Peak reading measures the peak to peak amplitude of the signal
appearing on the selected ECG input. If the simulator's calibrated output is
1.0 mV, then the Peak to Peak reading should be 1000 + 10% (+100) for both
Monitor and Diagnostic. If the simulator output is calibrated to some other
value, the displayed value should be (1000 x simulator output) +10%.
The diagnostic frequency response is only available when using the ECG
Leads input. When the unit is set to Pads, the display will indicate dashes
-----
(
) for the Diagnostic Peak-to Peak value.
Diagnostic Tests
and
to select
ENTER
to set
ENTER
2
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