Mindray Datascope AS 3000 - Alarms and Failsafe Functions; Low FiO2 Alarm Test

Functional Tests Periodic Maintenance
6 - 32 0070-10-0683 AS3000™ Service Manual
6.8.8 Alarms and Failsafe Functions
6.8.8.1 Set Up
1. Ensure that the gas pressure for O
2
, N
2
O, and AIR are at 50 ±10 psi.
2. Power ON the AS3000.
3. Perform the Startup Tests per the on-screen instructions. Ensure successful completion.
4. Attach a breathing circuit and breathing bag.
NOTE: For testing purposes always use a reusable breathing
circuit.
5. Attach an adult test lung to the Y-fitting of the breathing circuit.
6. Set the O
2
flow to 2 L/min and set the N
2
O and AIR flow rates to minimum flow.
7. Set the ventilator controls to:
8. Select CMV to begin ventilation.
6.8.8.2 Low FiO
2
Alarm Test
1. Set the low FiO
2
Alarm limit to 50% O
2
.
2. Set the AIR flow control valve to 5 L/min.
3. Set the FiO
2
flow controller to minimum flow.
4. Verify the following Low FiO
2
alarm signals activate, within three ventilation cycles:
• Low FiO
2
message appears on the screen.
• An alarm tone sounds.
5. Set the Low FiO
2
alarm limit to 18%.
6. Verify the alarm signals cease.
VENTILATOR CONTROLS VENTILATOR SETTINGS
Patient Type Adult
Ventilation Mode CMV
Tidal Volume - V
T
600
Breath Rate - freq 8
I:E Ratio - I:E 1:2
Plateau - T
P
10
PEEP - PEEP Off