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NOMINAL FLOW LPM
10 - A
20 - B
30 -C
40 -D
50 - E
60 -F
9.0 MAXVENTURI SPARE PARTS AND
ACCESSORIES
9.1 Included With Your Unit
PART NUMBER
ITEM
R211M03
Operating Manual & Instructions for Use
R125P03-002
MAX-250E Oxygen Sensor
RP34P02
Air inlet filter
R211P38
Muffler, Venturi
9.2 Standard Replacement Parts & Accessories
PART NUMBER
ITEM
R127P35
15' coiled polyurethane oxygen hose with DISS ends.
R100P41
Locking Pole Clamp Bracket
R100P44
Pole/Rail Mount Bracket
9.3 Other Replacement Parts and Repairs
For repair or parts issues not specified in this manual refer to the MaxVenturi Service Manual
(R211M01), or the MaxVenturi Preventative Maintenance Manual (R211M02).
9.4 Preventative Maintenance
It is recommended by Maxtec that service personnel check the function of the device once
a year, or as needed. It is also recommended that the MaxVenturi's flow and O2 adjustment
valves be replaced a minimum of every 4 years with R211P30-001 and R211P30-002 to replace
all O-rings, valves, and knobs. The MaxVenturi Preventative Maintenance Manual will guide
you through these processes. It is available for free at www.maxtec.com. Equipment in need
of factory repair shall be sent to:
Maxtec
Customer Service Department
2305 South 1070 West
Salt Lake City, Utah 84119
(Include RMA number)
10.0 TROUBLESHOOTING
PROBLEM: The flow does not reach 55LPM even with the flow valve wide open.
Possible Cause: The pressure of your piped oxygen supply in your hospital may
•
be low. Also check to see if the float in the flow meter is sticking. Tip the unit back
and forth. Ball should roll freely. If it seems to stick or hesitate, return the unit to
Maxtec for service. If you cannot detect the problem, contact the Maxtec Service
Department by calling the number listed in this manual. Do not disassemble the
device to try to detect an internal problem.
ENGLISH
4 BAR (% INCREASE) 5 BAR (% INCREASE)
13
34
9
24
7
18
6
16
5
13
4
12
PROBLEM: The oxygen level on the display does not reach 100%, even with the oxygen control
knob fully open.
Possible Cause: Check if the device needs to be calibrated. If you wish to use the
•
device at oxygen concentrations closer to 100% oxygen, it is best to calibrate the
device at 100% oxygen. Refer to the calibration section in this manual and follow
the 100% oxygen calibration routine. If this does not solve the problem, contact the
Maxtec Service Department.
PROBLEM: The oxygen level displayed does not go as low as the level indicated in the specifica-
tions, even with the oxygen control knob completely closed.
Possible Cause: It is very likely the device needs to be calibrated. Also check to
•
make sure the humidifier and patient delivery disposables are the correct size and
installed correctly with no kinking or occlusion. Check the air inlet filter for moisture
or dirt - replace if necessary. Valve cartridges may be worn; perform leak test
according to preventative maintenance procedure.
11.0 AIR-ENTRAINMENT DEVICES VS
BLENDERS
There are basic differences in the operation of a venturi air-entrainment device, such as the
MaxVenturi, versus an air oxygen blender. Some of the differences are listed in the chart below.
Further information regarding the use of these types of devices can be found in literature such as:
R. Wilkins et. al, Egan's Fundamentals of Respiratory Care, St. Louis: Mosby, 2003.
Maxtec recognizes that the condition of the patient should be the primary factor in deciding
which type of treatment is suitable for use.
MAXVENTURI
FiO2 Range: 32-100%
No low pressure gas alarms
Flow is compliant to downstream
flow resistance
Requires only an oxygen supply
Flow: 0-60 LPM
Requires large bore tubing
12.0 ELECTROMAGNETIC
COMPATABILITY
The information contained in this section (such as separation distances) is in general specifi-
cally written with regard to the MaxVenturi. The numbers provided will not guarantee fault-
less operation but should provide reasonable assurance of such. This information may not
be applicable to other medical electrical equipment; older equipment may be particularly
susceptible to interference.
NOTE: Medical electrical equipment requires special precautions regarding electromagnetic
compatibility (EMC) and needs to be installed and put into service according to the EMC infor-
mation provided in this document and the remainder of the instructions for use this device.
Portable and mobile RF communications equipment can affect medical electrical equipment.
Cables and accessories not specified within the instructions for use are not authorized. Using
other cables and/or accessories may adversely impact safety, performance and electromag-
netic compatibility (increased emission and decreased immunity).
Care should be taken if the equipment is used adjacent to or stacked with other equipment;
if adjacent or stacked use is inevitable, the equipment should be observed to verify normal
operation in the configuration in which it will be used.
10
AIR-OXYGEN BLENDER
FiO2 Range: 21-100%
Audible alarm for low gas pressure
or differential gas pressure
Flow is less compliant to
downstream flow resistance
Requires both oxygen and medical air supply
Flow: 0-120 LPM
Supports any size tubing
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