Page 210 (Model J)
24.5.2 Obligatory Alarms (non adjustable by user)
Monitor Failure
Sustained sub ambient
Sub ambient
Controller Failure
System fail, Memory checksum error
System fail, Alarm controller error
Gas not connected
O
2
not connected
Air not connected
Block alarm
Leak alarm
Battery fault
Battery low
Continuing positive pressure
Pressure sensor drift
Isolate system error
Flow ADC unable to calibrate
Serial communication error
Flow sensor defect
Clean flow sensor
Flow sensor not connected
Unable to calibrate flow sensor
Flow sensor not calibrated
User interface failure
Patient Leak
Pressure change detected
Mains failure
Fresh gas solenoid fail
Oxygen too high
Oxygen too low
Oxygen cell not connected
Oxygen cell needs calibrating
Oxygen cell needs replacing
Oxygen calibration failure
Monitor/Display comms fail
Alarm controller failure
Complete power fail
24.6 Patient circuits
Volume of 10mm patient circuit without humidifying chamber: 400ml
Resistance of 10mm circuit with 5 l/min fresh gas flow = 0.35mbar (as measured
from patient manifold to atmosphere).
Resistance of 10mm circuit with 30 l/min fresh gas flow = 10.0mbar (as measured
from patient manifold to atmosphere).
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