H E Y E R P a s i t h e c
46 / 106 HEYER Pasithec, Operator’s manual Rev. 0.2 Draft - 12/09
5.1.2 Main Failure Alarm Test
1
Turn on the power. Screen will display the stand-by interface after running the self-test.
2
After 5 minutes, unplug the power cord.
3
Check the “Power Off Failure Alarm”; it has the following characteristics:
a) Alarm sounds
b) “Mains Failure!” message displays on the screen
c) Mains icon flickers
4
Reconnect power cord.
5
Alarm will stop.
5.2 Test Gas Supply Pipeline
CAUTION: A user must confirm that gas supply is connected correctly. The pressure
should be correct and there should be no leakages or faulty connections in
the gas circuits. Stop using immediately and check gas connections if any
of the above occur.
Disconnect all pipeline gas supplies if the reading of the pipeline pressure gauge is not zero.
•
Switch on O
2
supply.
•
Adjust flow control to middle range.
•
Make sure the N
2
O pressure gauge is reset to zero.
•
Switch off O
2
supply.
•
Make sure the O
2
pressure gauge is reset to zero. The low O
2
supply alarm should
sound when pressure drops.
5.3 Monitoring Flow Control
WARNING: Refer to Step 1 to 14 of Monitoring without Oxygen for monitoring without
oxygen.
Refer to Step 1 to 13 of Monitoring with Oxygen for monitoring with oxygen.
5.3.1 Monitoring without Oxygen
WARNING: The monitoring system cannot be replaced by a link system. A fresh supply
of gas that contains oxygen may not sufficiently increase the level of
oxygen in the breathing circuit.
If N
2
O exists, it will pass through the system during the test, which should
be securely collected and removed.
Patients may be injured by improper gas mixture. The link system should
not be used if a proper ratio of O
2
and N
2
O is not possible.
The following procedures can test whether the link system has serious
malfunction; however, it cannot determine whether the calibration is
correct.
CAUTION: The gas flow control valve should be adjusted slowly. Do not turn it quickly
when the reading of the flowmeter goes beyond the maximum or minimum
flow rate; the control valve could be damaged and/or break.
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