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Example:
Prescribed total flow rate is
50 LPM with an FiO2 of 50%.
Start by locating total flow
rates in the 50's, then search
among the 50 LPM flow rates
for the closest FiO
Then look up the column
for the air LPM setting and
look left down the row for the
oxygen LPM setting.
For 50 LPM flow at 50% FiO
set the air to 30 LPM and the
oxygen to 20 LPM. Verify FiO
2.3 Use of Mixed Gas Analysis Port
The mixed gas analysis port on the MaxFLO
oxygen concentrations being delivered from the device. The mixed gas analysis port
contains a spring loaded valve which is opened on receipt of a standard 15mm flow
diverter connected to an analyzer/monitor. The mixed gas analysis port is designed to
support measurement of oxygen concentration without the need for continuous gas
bleed. The valve automatically closes when the diverter is removed.
Use caution to ensure the mixed gas analysis port is clean and free of any foreign matter
before each use. Always re-cover the port when the port is not in use with an oxygen
analyzer/monitor.
• Slide the mixed gas analysis port cover to the side to expose the port. Insert the analyzer/
monitor diverter completely into the port. A small gap may remain between the bottom of
the diverter and the top of the MaxFLO
contains a spring loaded valve. Diverters with improper fit may be pushed out of the port by
the force of the spring. Use the diverter supplied with the MaxFLO
• Follow the manufacturer's recommended calibration procedures as outlined for your
particular analyzer/monitor.
All Maxtec analyzers/monitors are designed to be calibrated at 100% O
recommends for accuracy, that during calibration, oxygen flow be set to the desired
total flow rate, i.e. for a flow of 20 LPM oxygen and 15 LPM air, calibrate using an
oxygen flow of 35 LPM. Also, any downstream tubing or cannula must be connected to
the Mixed Gas Outlet in order to induce the same amount of back pressure that will be
seen during actual use.
3.0 PERFORMANCE CHECK
The MaxFLO
is designed for low maintenance operation. However, the following
2
functional tests should be performed periodically in order to ensure proper function.
• Install the MaxFLO
conduct the performance check.
4
to 50%.
2
2
with an analyzer/monitor prior to use.
2
according to section 2.1 of this operating manual in order to
2
866.4.Maxtec www.maxtec.com
866.4.Maxtec
Oxygen Concentration
Medical Air (LPM)
0
5
10 15 20 25 30 35 40 45 50
10
15
5
0
21
21
21
5
10
15
20
5
61
47
41
100
10
15
20
25
10
100
74
61
53
15
20
25
30
15
100
68
61
80
20
25
30
35
20
100
84
74
66
25
30
35
40
25
100
87
77
70
can be used to spot check or monitor
2
, this is normal. Note: the mixed gas analysis port
2
www.maxtecinc.com
20
25
30
35
40
21
21
21
21
21
25
30
35
40
45
37
34
32
31
30
30
35
40
45
50
47
44
41
39
37
35
40
45
50
55
55
51
47
45
43
40
45
50
55
60
61
56
53
50
47
45
50
55
60
65
65
61
57
54
51
.
2
. Maxtec
2
45
50
21
21
50
55
29
28
55
60
35
34
60
65
41
39
65
70
45
44
70
75
49
47
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