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3
ENGLISH
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If a condition is detected that could possibly prevent the monitor from continuing to oper-
ate safely, it will sound an alarm. If, at any time, EOx (i.e. EO2, EO4, etc.) appears on the LCD
refer to section 4.0, or contact a Maxtec Certified Service Technician.
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All service should be referred to a Maxtec Certified Service Technician.
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Maxtec recommends that the MaxBlend 2 be serviced by Maxtec at a minimum of every
three years, or if a leak or other performance problem is suspected.
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If the MaxBlend 2 is dropped, follow the procedures outlined in section 3.0 for a perfor-
mance check before reusing the device.
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When the unit is going to be stored (not in use for more than 30 days), always remove the
batteries to protect the unit from potential damage due to battery leakage.
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Always replace batteries with high-quality, name-brand “AA” alkaline batteries.
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The low oxygen alarm can be set below 18%, and as low as 15%. See section 2.3 on setting
alarms. This is in accordance with IEC 80601-2-55.
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In the event of exposure to an ELECTROMAGNETIC DISTURBANCE the analyzer may display
an E06 or E02 error message. If this occurs, refer to Section 4.0 for instructions to resolve
the problem.
To prevent risk of burns, fire, or injury to person(s):
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Mixed gases continuously bleed into the atmosphere at the oxygen concentration rate
set at the control knob. Bleeding oxygen into any closed area could increase the risk of
fire or explosion.
DO NOT
operate this device in the presence of any flame or source of ignition, or when
using devices such electrosurgical equipment or defibrillators.
DO NOT
operate the MaxBlend 2 in the presence of flammable anesthetics or in an atmo-
sphere of explosive gases. Operating the MaxBlend 2 in flammable or explosive atmo-
spheres may result in fire or explosion.
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Galvanic O2 sensor electrolyte gel is acidic and may cause skin or eye irritation and/or
burns. Take care when handling or replacing exhausted or damaged disposable O2 sen-
sors. Be sure to dispose of expired sensors in accordance with hospital and/or govern-
mental regulations (O2 Sensor SDS available upon request from Maxtec).
DO NOT
smoke in an area where oxygen is being used.
CAUTIONS
Indicates a potentially hazardous situation which, if not avoided, could result in minor or mod-
erate injury and property damage.
DO NOT
store the MaxBlend 2 in hot areas for prolonged periods of time. Temperatures
above 80°F (27°C) can shorten battery life.
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To minimize the potential for electrostatic shock,
DO NOT
use antistatic or electrically
conductive hoses with the MaxBlend 2.
When cleaning the MaxBlend 2:
DO NOT
use harsh abrasives.
DO NOT
immerse the MaxBlend 2 in liquid sterilizing agents or liquids of any kind.
DO NOT
spray cleaning solution directly onto the sensor port, bleed muffler, or buzzer
opening.
DO NOT
allow cleaning solution to pool on the front panel, sensor port, or bleed muffler.
DO NOT
sterilize the MaxBlend 2. Standard sterilization techniques may damage the
blender.
DO NOT
clean or dry the MaxBlend 2 with a high pressure air gun. Applying high pressure
air to the MaxBlend 2 may damage components and render the system inoperable.
DO NOT
over-clean the MaxBlend 2. Repeated use of a cleaning agent can cause residue
build-up on critical components. Excessive residue buildup can affect the MaxBlend 2’s
performance.
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Dropping or severely jarring the sensor after calibration may shift the calibration point
enough to require recalibration.
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Always operate the MaxBlend 2 with clean, dry medical-grade gases. Contaminants
or moisture can cause defective operation. Oxygen should have a minimum dewpoint
of -80°F (-62°C) or moisture content less than 7.9 PPM (0.0059mg/L). Oxygen “purity”
should be at least 99.0% and the air used should be medical-grade. Water vapor content
must not exceed a dew point of 5°F (-15°C) below the lowest ambient temperature to
which the delivery system is exposed.
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Particulate content must not exceed that which would be found immediately down-
stream of a 15 micron absolute filter. Refer to CGA commodity specifications G-4.3 and G7.1
for more information. Water vapor content of medical air or O2 supply to the blender must
not exceed 5.63 x 103 milligrams H2O per cubic meter of non-condensable gas.
DO NOT
disassemble the MaxBlend 2. All service should be performed by a Maxtec
Certified Service Technician.
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Be sure the MaxBlend 2 is securely mounted. This device is usually mounted to a hospital
rail system or an infusion stand. Dropping the device may cause injury or damage to the
device.
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The outlets of this device are capable of delivering pressure as high as the inlet pressure.
Ensure that the devices that carry the gas from the blender to the patient prevent exces-
sive pressure to the patient.
DO NOT
use the oxygen sensor if it appears to be damaged or is leaking. The oxygen
sensors contain a weak acidic solution encapsulated in a plastic housing. Under normal
operating conditions the solution (electrolyte) is never exposed.
NOTES
Indicates supplemental information to assist in the use of the device.
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The MaxBlend 2 is tested for compliance with ISO 11195, and meets requirements regarding
reverse gas flow as delivered.
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Applicable parts used in the MaxBlend 2 have been cleaned and degreased for oxygen
service. Any lubricants used are designed specifically for the application.
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As long as the absolute pressure of the gas mixture being monitored is constant, the
MaxBlend 2 will accurately read oxygen concentrations. However, if the absolute pres-
sure varies the reading will fluctuate proportionately, as the sensor actually measures the
partial pressure of oxygen in the mixture. The sensor readings will also change propor-
tionately with barometric pressure changes; because of this, frequent calibration of the
sensor is recommended.
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Users are advised to use pressure regulators which display the outlet pressure.
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All specifications assume the following standard environmental conditions, unless speci-
fied otherwise: ambient and sample gas temperatures of 77°F (25°C), barometric pressure
of 30inHg (760mmHg), sea level altitude, ambient relative humidity of 50%, sample gas
relative humidity of 0%.
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It is important to note that the oxygen concentration selection scale is provided only as a
guideline for selecting O2 concentrations. The clinician should use the MaxBlend 2’s dis-
play panel to adjust the O2 concentration to the desired setting.
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The alarm limits can be set to levels that would render them useless for a particular
patient’s clinical condition. Ensure that the delivered oxygen level and flow rate are set
to values prescribed by the patient’s physician. Also ensure that the high and low alarm
limits are set to levels such that they will sound if the oxygen level is outside of safe limits.
Be sure to review and, if necessary, re-set the alarm limits when the patient’s clinical con-
dition changes, or when the patient’s physician prescribes a change in oxygen therapy.
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This device does not contain automatic barometric pressure compensation.
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Gas leaks that cause room air to mix with the gas sample may cause inaccurate oxygen
readings. Ensure the O-rings on the sensor and flow diverter are in place and intact prior
to use.
