Philips M3921A, Service Manual

Page: 24 / 150

Battery Performance Test
12 Performance Verification
Battery Performance Test
The the A1 and A3 mono monitors are specified to typically operate on
battery power for a minimum of 4 hours, at 25°C, with no printing, and one
NiBP measurement every 15 minutes. The A3 color monitor is specified to
typically operate on battery power for a minimum of 3 hours, at 25°C, with no
printing, and one NiBP measurement every 15 minutes. Before performing
this test, ensure that the battery is fully charged (see “Battery Charge”).
1. Connect the Nellcor Puritan Bennett SRC-2 pulse oximeter tester to the monitor
via the M4787A sensor cable.
2. Connect the NiBP simulator to the monitor via the M3918A tubing.
3. Set the SRC-2 switches as follows:
4. Set the NiBP simulator to simulate a pressure setting of 120/80 mmHg and heart
rate of 80 bpm.
5. Ensure that the monitor is not connected to AC power.
6. With the monitor turned off, press the
ON/STANDBY
button and verify
that the battery icon appears at the bottom of the display after the power-on self-
test is completed. The boxes in the battery icon should all be filled, indicating
that the battery is charged.
7. Verify that the monitor is responding to the SpO
2
simulator signal and that the
audible alarm is sounding. Use the wheel to select the SpO
2
Menu and
permanently silence the SpO
2
audible alarm.
8. Use the wheel to select the NiBP Menu and set the Automatic Measurement
Interval to 15 minutes. Exit the menu and press the front panel NiBP button
to manually start the first NiBP measurement. Subsequent NiBP
measurements are taken automatically every 15 minutes.
SWITCH POSITION
RATE 38
LIGHT LOW
MODULATION LOW
RCAL/MODE RCAL 63/LOCAL