Chapter 7
Testing, Calibration, and Performance Verification
REF 1029568 Rev B
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
7-25
7.8 Alarm/LED Test
The Alarm/LED Test confirms that alarms and LEDs are working properly.
1. Connect the ventilator to AC power and enter Diagnostic mode.
2. Confirm that the ON AC POWER LED is on.
3. Remove the AC power from the back of the ventilator for at least one
minute then reconnect the AC power to the back of the ventilator.
4. Confirm the green BATTERY CHARGING LED lights.
5. At the System Test screen (Figure 7-27), select
Primary Audible On
and press
Enter
to test the alarm.
6. Select
Backup Audible On
and press
Enter
to test the alarm.
Figure 7-27: Diagnostic Mode: System Test Screen
7. Set the DMM to measure resistance:
•
Connect the DMM to pins 1 and 6 and verify that resistance is
infinite (open circuit) when
Remote Alarm Off
is selected on the
System Test screen.
•
When
Remote Alarm On
is selected, verify that the DMM
measures 0 ± 3
Ω
(closed circuit).
•
Connect the DMM to pins 1 and 9 and verify that resistance is
infinite (open circuit) when
Remote Alarm On
is selected.
•
When
Remote Alarm Off
is selected, verify that the DMM
measures 0 ± 3
Ω
(closed circuit).
8. Remove the DMM leads and return to the System Test screen.
9. Select
Alarm LED On
, then
Silence LED On
, and then
On Battery LED
On
to test LEDs.