Philips 862478 Manuale Utente
Preventative Maintenance Tests
4-20
Testing the Monitor
Deflation Rate
Test
This test verifies the deflation rate of the monitor.
Step
Action
1
Turn the simulator on.
2
Perform the following sequence:
a. Press the Home button.
b. Press the Pressure Tests button.
c. Press the Pressure Leak Test button.
d. Set the Cuff to Internal.
b. Press the Pressure Tests button.
c. Press the Pressure Leak Test button.
d. Set the Cuff to Internal.
3
Confirm that the simulator is active and displays "Leak Test".
4
Press the Volume button to ensure that both valves are closed.
5
Perform an offset adjustment so that the simulator and monitor both display a
pressure of 0 mmHg or kPa by doing the following:
pressure of 0 mmHg or kPa by doing the following:
a. Press the Contrast button on the monitor’s front panel.
b. If needed, zero the simulator (see “To Zero the Simulator” on page 4-16).
b. If needed, zero the simulator (see “To Zero the Simulator” on page 4-16).
6
Note—Complete steps 6-9 within 150 seconds.
Press and hold the NBP button on the monitor’s front panel and inflate to 250
±10. Don’t go over 270, or safety deflation may occur. (Slow the inflation rate by
pulsing the button when the pressure is over 200).
±10. Don’t go over 270, or safety deflation may occur. (Slow the inflation rate by
pulsing the button when the pressure is over 200).
7
Allow 15-20 seconds for the pressure to stabilize. Record the pressure displayed
on the monitor (P1).
on the monitor (P1).
8
Press and hold the "Alarm off" button on the monitor to release the pressure in
steps of 3 mmHg (.4 kPa). Simultaneously, start the timer.
steps of 3 mmHg (.4 kPa). Simultaneously, start the timer.
9
Stop the timer when the pressure drops below 150 mmHg (20 kPa). Calculate the
deflation rate (X5): (starting pressure - 150)/# of seconds. The deflation rate
should be 3.3 mmHg/s ±1.5 mmHg/s (0.44 kPa/s ± 0.2 kPa/s).
deflation rate (X5): (starting pressure - 150)/# of seconds. The deflation rate
should be 3.3 mmHg/s ±1.5 mmHg/s (0.44 kPa/s ± 0.2 kPa/s).
10
Press and hold the Volume button until the monitor displays a pressure of 0
mmHg or kPa.
mmHg or kPa.
11
If no further NBP tests are to be conducted, turn the monitor Off. Normal
monitoring operation returns the next time the monitor is turned On.
monitoring operation returns the next time the monitor is turned On.