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Restoring Factory Settings - Philips M3921A Service Manual

Patient monitors.
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When in the NiBP Test screen, the
wheel returns the user to the Diagnostic Menu. Rotating the wheel while in the NiBP
Test screen has no effect.

Restoring Factory Settings

Caution
In addition to restoring factory defaults, this procedure clears the
contents of trend memory.
Read this procedure completely before performing the first step.
Note
The following technique can be used to restore the monitor's power-up default
Power-up Defaults Menu And Diagnostic Mode
Open Valve (A1):
Open Both Valves (A3):
Offset Adjust:
is pressed, the proportional valve opens
and bleeds off pressure at the rate of 3 ±1.5 mmHg/
s. It is useful to control the bleed rate to 3 mmHg/
second to facilitate certain AAMI SP10 tests. Any
time the bleed rate falls below 3 mmHg/second, the
valve opens and remains at maximum as long as
the button is pressed.
While the Heart Rate Tone
is pressed, the valve opens and remains at
maximum as long as the button is pressed.
For as long as the Heart Rate Tone
button
is pressed, the safety valve and
proportional valve opens and remains at maximum
as long as the button is pressed.
A momentary press of the
button
invokes the
routine that is performed immediately prior to each
blood pressure measurement. This routine looks at
the pressure in the system, and if the pressure is
non-zero, an offset is applied which causes the
system pressure to display as
Return
item is always highlighted; a press of the
Restoring Factory Settings
button
VOLUME
VOLUME
CONTRAST ADJUST
zero calibration
zero
.
45

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