Mindray A7 Service Manual

Alarms and Fail safe Functions Installation Guide
2 - 48 046-006272-00 A7™ Service Manual
2.7 Alarms and Fail safe Functions
2.7.1 Set Up
1. Set the EFCS as Direct Flow Control Mode and select AIR as balance gas. Set the O2 flow to 2 L/
min and set the air flow rate to 0 L/min.
2. Set the ventilator controls to:
3. Press Set Mode button to begin ventilation.
2.7.2 Low O2 Alarm Test
NOTE: For A7s with an installed gas module, disconnect the sample tube from
the Y-piece and breath into it until you see a CO2 reading on the screen.
Then reconnect the sample tube to the Y-piece. This will activate the
gas module alarms.
1. Set the low Insp O2 alarm limit to 50%.
2. Set the air flow to 5 L/min.
3. Set the O2 flow to 0 L/min.
4. Verify the following low Insp O2 alarm signals activate, within three ventilation cycles:
• FiO2 Too Low message appears on the screen.
• An alarm tone sounds.
5. Set the low Insp O2 alarm limit to 18%.
6. Verify the FiO2 Too Low message disappears.
2.7.3 High O2 Alarm Test
1. Set the high Insp O2 alarm limit to 50%.
2. Set the O2 flow to 5 L/min.
3. Set the air flow to 0 L/min.
4. Verify the following high Insp O2 alarm signals activate:
• FiO2 Too High message appears on the screen.
• An alarm tone sounds.
5. Set the high Insp O2 alarm limit to the highest setting.
6. Verify the FiO2 Too High message disappears.
Ventilator Controls Ventilator Settings
Ventilation Mode VCV
Vt 600
Rate 8
I:E 1:2
Tpause 10
PEEP Off
Plimit 50

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English