866.4.Maxtec www.maxtec.com 23
0
5
10
15
20
25
0 20 40 60 80 100 120
PressureDrop(PSIG)
FlowRate(LPM)
FlowRate-vs-PressureDrop
(ForHighFlowBlender)
Flow Rate -vs- Pressure Drop
(For High Flow Blender)
Pressure drop (PSIG)Pressure drop (PSIG)
Flow Rate (LPM)
Flow Rate (LPM)
If the MAXBlend2 is set to deliver 21% and the OXYGEN source pressure
is reduced enough to produce a 20 PSI (1.3 BAR) differential, the unit may
not alarm because it will continue to deliver 21% concentration according to
the setting. If the setting is moved slightly from 21%, the pressure differential
alarm will sound. Similarly, if the MAXBlend2 is set to deliver 100% and the
AIR source pressure is reduced or lost, the unit may not alarm because it will
continue to deliver 100% concentration.
12.0 FLOW CHARACTERISTICS
The outlet pressure of the MAXBlend2 decreases as the total flow rate
increase. The total flow rate is the measurement of the total flow from all
outlet ports. The charts below indicate the pressure drop that occurs for both
low flow and high flow models at 3 inlet pressure settings; 30 PSIG (2.07
BAR), 50 PSIG (3.45 BAR), and 75 PSIG (5.17 BAR).
The fixed acrylic flow meter on the left side of the MaxBlend2 has been
pressure compensated to accommodate for the pressure loss through the
blender at each flow rate, using an inlet pressure of 50 PSIG."
0
5
10
15
20
25
0 5 10 15 20 25 30 35
PressureDrop(PSIG)
FlowRate(LPM)
FlowRate-vs-PressureDrop
(ForLowFlowBlender)
Flow Rate -vs- Pressure Drop
(For Low Flow Blender)
50 psig
50 psig
75 psig
75 psig
30 psig
30 psig