Heyer Pasithec - Alarm System Testing

H E Y E R P a s i t h e c
50 / 106 HEYER Pasithec, Operator’s manual Rev. 0.2 Draft - 12/09
5.5 Alarm Test
1 Connect simulation lung to patient.
2 Turn on power switch.
3 Set control options:
Ventilation mode: CMV mode
Ventilator: V
T
: 700 ml
f: 20 bpm
I:E: 1:2
P
limit
: 40 cmH
2
O
Anesthetic machine: All gases: closed
Press O
2
+ button to inflate bellows.
4 Set ventilation mode to manual ventilation, and reset to CMV control.
• Be sure: Auto ventilation starts.
• Correct data is displayed on the screen.
• Ventilator should bellow up and down during auto ventilation.
5 Adjust O
2
flow to 5 L/min.
6 Be sure:
• Pressure at the end of expiration is between 2~3 cmH
2
O.
• Correct data is displayed on the screen.
• Ventilator bellows up and down during auto ventilation.
7 Test O
2
monitoring and alarm:
• Remove O
2
sensor and confirm that O
2
concentration measured in the room is about 21%.
• Adjust lower limit of O
2
concentration to 50%; the “Low FiO
2
!!” alarm should sound.
• Adjust lower limit of O
2
concentration to 21% again; the alarm should stop.
• Adjust O
2
sensor back to AC110.
• Adjust upper limit of O
2
concentration to 50% again.
• Press “O
2
Flush” to charge the breathing system; the “High FiO
2
!!” alarm should sound.
• Adjust upper limit of O
2
concentration to 100%; the alarm should stop.
• Let O
2
sensor pass pure O
2
for 2 minutes; O
2
concentration should measure about 100%.
8 Test low minute volume alarm:
• Turn to “Alarm” submenu.
• Adjust lower limit of MV to 16 L/min; the “Low Minute Volume!!” alarm should sound.
• Turn to “Alarm” submenu again.
• Adjust lower limit of MV to 10 L/min; the alarm should stop.
9 Test high airway pressure alarm:
• View PEAK on the screen.
• Adjust lower limit of Paw to below PEAK; the “High Airway Pressure!!!” alarm should sound.
• Adjust lower limit of Paw to above PEAK; the “High Airway Pressure!!!” alarm should stop.
10 Test low airway pressure alarm:
• Remove reservoir bag from the absorber circle.
• An alarm, such as “Low Minute Volume!” alarm should sound.
• “Low Airway Pressure!!” alarm should sound.
11 Test continuous high airway pressure alarm:
• Set control options:
APL valve: Set to the maximum value
Ventilation mode: Bag
• Set ventilation mode to Manual Mode and auto ventilation should stop.
• Block patient end and press O
2
+ button.
• “Continuous Pressure!!!” alarm should sound after 15 seconds.
12 Turn off the Pneumatic and Electronic Switch.