Gradian Universal Anaesthesia Machine, Руководство по обслуживанию

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PROBLEM-SOLVING
PROBLEM
Both the Oxygen concentrator and the control
screen do not turn on
UAM shuts down and re-starts.
Oxygen concentrator does not turn on or a
noticeable hot smell
Analyzer screen does not turn on
Oxygen analyzer displays 104% at higher oxygen
concentrations
Oxygen sensor will not calibrate or monitor
readings are erratic
Audible alarms not working
Analyzer screen shuts off when mains power is lost
N
2
O does not cut-off when oxygen percentage is
less than 25%
Apnea alarm does not activate
Oxygen concentrator output measures less than 90%
Oxygen concentrator output does not reach 10
liters/minute and/or flow fluctuates
Concentrator alarm does not activate when power
is lost
Breathing system pressure too high
POSSIBLE CAUSES/SOLUTIONS
g
Check that both mains isolator switch and O
2
concentrator are switched on.
g General supply voltage instability, power surges/low voltage/spikes.
Use voltage stabilizer
g Faulty socket outlet, general power cut
g
Malfunctioning mains isolator switch
g Malfunctioning voltage switcher
g
Broken mains plug or cable
g Malfunctioning voltage stabilizer, if fitted between UAM and wall socket.
g General supply voltage instability, power surges/low voltage/spikes.
Use voltage stabilizer
g Fault in local wiring or other device in or near the operating theater.
Check other electrical devices in the operating theater such as air
conditioner, sterilizer, theater lights. Switch off all devices except
UAM and switch on other devices at intervals, one by one.
g Blown 5A fuse
g Malfunctioning front switch
g Malfunctioning mains isolator switch
g Malfunctioning voltage switcher
g Malfunctioning oxygen concentrator circuit board
g Compressor failure
g Blown 24V Power Supply Unit fuse (500mA)
g Defective 24V Power Supply Unit
g Circuit board failure
g
Oxygen sensor needs to be calibrated with 100% oxygen
g
Oxygen sensor is exhausted and needs to be replaced
g Sensor cable is disconnected or broken
g
Disconnected speaker connector
g Malfunctioning speaker
g
Malfunctioning analyzer screen circuit board
g
Battery needs recharging or is disconnected
g Battery has lost its capacity to charge and should be replaced
g Malfunctioning cut-off solenoid valve
g
Malfunctioning analyzer screen circuit board
g
Mute option is selected
g Pressure transducer needs to be calibrated
g
Malfunctioning analyzer screen circuit board
g
Oxygen sensor needs to be calibrated to both 100% and 21% oxygen
g Malfunctioning water trap in oxygen concentrator is allowing moisture
to saturate the material in the zeolite cylinders. Clean or replace.
g Air filter is dirty and obstructing air flow. Clean or replace.
g
Air compressor is malfunctioning
g Switching valve is malfunctioning
g
Concentrator output regulator needs to be adjusted
g
9-volt alarm battery is discharged and should be replaced.
g
Pressure relief valve not opening. Remove and clean.
g Balloon valve malfunctioning. Remove and clean or replace.