Porter DIGITAL MDM, Руководство по эксплуатации и установке

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17
PREPARATION FOR USE: TESTS, TECHNIQUES, MAINTENANCE
CAUTION: Before using the DIGITAL MDM mixer, check the operation of the unit by performing
the following tests.
Performance Checks: These preliminary tests must be conducted to ensure that your analgesia mixer is
performing correctly. If the unit fails any one of the following performance checks, the unit must be
returned for service.
Machine Turn-On Test:
Press the ON/OFF key, as shown in Figure 1.
After the device goes through an initialization
routine, the % OXYGEN and LPM FLOW displays
should indicate 100% and 5 LPM.
Alarm Indicator / Lamp Test:
Press the alarm test / silence key, as shown in
Figure 1, and observe that all the alarm readouts
illuminate. The % OXYGEN and LPM FLOW
displays should show 8.8.8. and 8.8 respectively.
The alarm readouts should illuminate with the
numerical displays. 10 bars on each gas should
illuminate. The audible alarm should also sound.
Oxygen Failure Test:
Set the LPM FLOW display to 9.9 LPM. Set the %
OXYGEN display to 50%. Turn off the oxygen gas
supply to the unit. When the gas runs out, check
for each of the following:
-
the OXYGEN FAILURE alarm illuminates
- the audible alarm sounds
- the flow indicators are off
- the LPM FLOW and % OXYGEN displays are
off
- the N
2
O gas flow indicator shows no bars
Turn on the oxygen gas supply, and the unit
should return to normal operation. (The alarm may
continue to chime for up to 20 seconds after
restoration of gas pressure.)
Nitrous Failure Test:
Set the LPM FLOW display to 9.9 LPM. Set the %
OXYGEN display to 30%. Turn off the nitrous
oxide gas supply to the unit. When the gas runs
out, make sure each of the following occurs:
-
the NITROUS FAILURE alarm illuminates
- the audible alarm sounds
- the LPM FLOW display indicates the oxygen
flow being delivered
- the % OXYGEN display is OFF
- the N
2
O gas flow indicator is OFF
- the O
2
gas flow indicator shows at least 3 bars
Turn on the nitrous oxide gas supply. The unit
should return to normal operation. (The alarm may
continue to chime for up to 20 seconds after
restoration of gas pressure.)