Maxtec MAXO2+A Operating instructions

MAXO2®+A /AE INDUSTRIAL GUIDE & OPERATING INSTRUCTIONS
R217M42 Rev.E
BAT
CAL
MAXO2®+A
MAXO2®+AE

ii
Manufacturer: Maxtec, Inc
European Representative
QNET BV
Hommerterweg 286
6436 AM Amstenrade
The Netherlands
0123

PREFACE
This manual describes the function, operation and maintenance of the MAXO2®+
hand-held oxygen analyzer. A member of Maxtec®’s MAXO2®analyzer line of
oxygen analyzers and monitors, the MAXO2®+utilizes the MAX-250+ oxygen
sensor and is engineered for long life, maximum reliability and stable perfmance.
NOTE: In order to obtain optimum performance from your MAXO2®+ analyzer, all
operation and maintenance must be performed in accordance with this manual.
Please read the manual thoroughly before using the analyzer and do not attempt
any repair or procedure that is not described herein. Maxtec®cannot warrant any
damage resulting from misuse, unauthorized repair or improper maintenance of the
instrument.
Thank You
Thank you for your purchase of a Maxtec®MAXO2®+oxygen analyzer. We
appreciate the time and energy you invest in selecting the equipment best suited
to your needs. As exchange, we are supplying you with a reliable,
high-quality instrument that, with proper care and operation, will provide you with
years of exceptional service. We also encourage your comments or suggestions
as to how our equipment, in any way, can better serve your needs. Please feel
free to write, FAX or e-mail us at the address on page ii of this manual c/o the
Maxtec®Marketing Department. Please visit our website www.maxtecinc.com for
more information on our products and services.
WARNING:
Never allow an excess length of tubing, lanyard, or sensor cable near a person’s
head or neck, which may result in strangulation.
Before use, all individuals who will be using the MAXO2®+must become thoroughly
familiar with the information contained in this Operation Manual. Strict adherence
to the operating instructions is necessary for safe, effective product performance.
This product will perform only as designed if installed and operated in accordance
with the manufacturer’s operating instructions.
Use only genuine Maxtec®accessories and replacement parts. Failure to do
so may seriously impair the analyzer’s performance. Repair or alteration of the
MAXO2®+beyond the scope of the maintenance instructions, or by anyone other
than an authorized Maxtec®service person, could cause the product to fail to
perform as designed.
Calibrate the MAXO2®+weekly when in operation, or if environmental conditions
change significantly. (ie. Elevation, Temperature, Pressure, Humidity — refer to
Section 4.0 of this manual).
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Use of the MAXO2®+near devices that generate electrical fields may cause erratic
readings.
If the MAXO2®+is ever exposed to liquids (from spills or immersion) or to any
other physical abuse, turn the instrument OFF and then ON. This will allow the
unit to go through its self test to assure everything is operating correctly. You may
need to allow the sensor time to dry out.
Never immerse or expose the MAXO2®+(including sensor) to high temperatures
(>70°C). Never expose the device to pressure, irradiation vacuum, steam, or
chemicals.
NOTE: Replace the batteries with recognized high quality AA Alkaline or Lithium
batteries.
NOTE: If the unit is going to be stored (not in use for 1 month), we recommend that
you remove the batteries to protect the unit from potential battery leakage.
FAILURE TO COMPLY WITH THESE WARNINGS AND CAUTIONS COULD RESULT IN
INSTRUMENT DAMAGE AND POSSIBLY JEOPARDIZE THE WELL BEING OF THE USER.
Do not throw away. Dispose of properly in accordance with local regulations
Classification
Protection against electric shock: Internally powered equipment.
Protection against water: IPX1
Mode of Operation: Continuous

Safety Labeling
The following symbols and safety labels are found on the MAXO2®+:
Attention, Consult ACCOMPANYING DOCUMENTS
Off/On
Calibration
Found to meet the requirements of U.S. and Canadian nationally
recognized codes and standards listed or classified by ETL.
Do not throw away. Dispose of properly in accordance with local regulations.
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TABLE OF CONTENTS
1.0 SYSTEMOVERVIEW............................................................ 1
1.1 BaseUnitDescription...................................................... 1
1.2 ComponentIdentification.................................................... 2
1.3 ComponentDescription..................................................... 2
1.4 MAX-250OxygenSensor.................................................... 3
2.0 OPERATINGINSTRUCTIONS .................................................... 3
2.1 GettingStarted............................................................ 3
2.1.1 ProtectTape ....................................................... 3
2.1.2 AutomaticCalibration................................................. 3
2.2 Calibrating the MAXO2®+ OxygenAnalyzer........................................ 4
2.3 OperationwithBCAdapter .................................................. 5
2.4 OperationwithOxyKnobAdapter.............................................. 6
3.0 GASSAMPLEOPTIONS......................................................... 7
4.0 FACTORS INFLUENCING ACCURATE READINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 ElevationChanges......................................................... 8
4.2 TemperatureEffects ....................................................... 8
4.3 PressureEffects........................................................... 8
4.4 HumidityEffects .......................................................... 8
5.0 CALIBRATIONERRORSANDERRORCODES........................................ 9
6.0 CHANGINGTHEBATTERIES.................................................... 11
7.0 CHANGINGTHEOXYGENSENSOR............................................... 11
7.1 MAXO2®+A Model......................................................... 11
7.2 MAXO2®+AE Model........................................................ 12
8.0 CLEANINGANDMAINTENANCE................................................. 12
9.0 SPECIFICATIONS............................................................. 13
9.1 BaseUnitSpecifications ................................................... 13
9.2 SensorSpecifications...................................................... 13
10.0 MAXO2®+ SPAREPARTSANDACCESSORIES........................................ 14
10.1 IncludedWithYourUnit ................................................... 14
10.2 StandardReplacementParts................................................ 14
10.3 OptionalAccessories...................................................... 14
10.3.1 OptionalAdapters................................................... 14
10.3.2 MountingOptions................................................... 15
10.3.3 CarryingOptions.................................................... 15
11.0 WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.0 SYSTEM OVERVIEW
1.1 Base Unit Description
The MAXO2®+analyzer provides unparalleled performance and reliability due
to an advanced design that includes the following features and operational
benefits.
 •Extra-lifeoxygensensorofapproximately900,000O2percent hours
(2-year warranty)
 •Durable,compactdesignthatpermitscomfortable,hand-heldoperation
and easy to clean.
 •OperationusingonlytwoAAAlkalinebatteries(2x1.5Volts)for
approximately 5000 hours of performance with continuous use. For extra
extended long life, two AA Lithium batteries may be used.
 •Oxygen-specific,galvanicsensorthatachieves90%offinalvaluein
approximately 15 seconds at room temperature.
 •Large,easy-to-read,31/2-digitLCDdisplayforreadingsinthe0-100%
range.
 •Simpleoperationandeasyone-keycalibration.
 •Self-diagnosticcheckofanalogandmicroprocessorcircuitry.
 •Lowbatteryindication.
 •Calibrationremindertimerthatalertstheoperator,usingacalibrationicon
on the LCD display, to perform a unit calibration.
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FIGURE 1
1.2 Component Identification
1.3 Component Description
1. 3 1/2-Digit Display-The31/2digitliquidcrystaldisplay(LCD)provides
directreadoutofoxygenconcentrationsintherangeof0-105.0%
(100.1%-105.0%usedforcalibrationdeterminationpurposes).The
digits also display error codes and calibration codes as necessary.
2. Low Battery Indicator - The low battery indicator is located at the top of the
display and is only activated when the voltage on the batteries is below a
normal operating level.
3. “%” symbol-The“%”signislocatedtotherightoftheconcentration
number and is present during normal operation.
4. Calibration symbol - The calibration symbol is located at the bottom of the
display and is timed to activate when a calibration is necessary.
5. ON/OFF Key - This key is used to turn the device on or off.
6. Calibration Key - This key is used to calibrate the device. Holding the key
for more than three seconds will force the device to enter a calibration mode.
CAUTION: The device will assume a percent oxygen concentration when cali-
brating. Be sure to apply 100% oxygen, or ambient air concentration to the
device during calibration or the device will not calibrate correctly.
Sample Inlet Connection
This is the port at which the device is connected to determine oxygen concentration.

1.4 MAX-250+ Oxygen Sensor
The MAX-250+ oxygen sensor offers stability and extra life.
The MAX-250+ is a galvanic, partial pressure sensor that is specific to oxygen. It
consists of two electrodes (a cathode and an anode), a teflon membrane and an
electrolyte. Oxygen diffuses through the teflon membrane and immediately reacts
at a gold cathode. Concurrently, oxidation occurs electrochemically at the lead
anode, generating an electrical current and providing a voltage output. Electrodes
are immersed in a unique gelled weak acid electrolyte which is responsible for
the sensors long life and motion insensitive characteristic. Since the sensor is
specific to oxygen, the current generated is proportional to the amount of oxygen
present in the sample gas. When no oxygen is present, there is no
electrochemical reaction and therefore, negligible current is produced. In this
sense, the sensor is self-zeroing.
CAUTION: The Maxtec®MAX-250+ oxygen sensor is a sealed device
containing a mild acid electrolyte, lead (Pb), and lead acetate. Lead and lead
acetate are hazardous waste constituents and should be disposed of properly,
or returned to Maxtec®for proper disposal or recovery.
CAUTION: Do not immerse the sensor in any cleaning solution, autoclave or
expose the sensor to high temperatures.
CAUTION: Dropping sensor can adversely affect its performance.
Do not throw away. Dispose of properly in accordance with local regulations.
2.0 OPERATING INSTRUCTIONS
2.1 Getting Started
2.1.1 Protect Tape
Prior to turning on the unit, a protective film covering the threaded sensor
face must be removed. After removing the film, wait approximately 20
minutes for the sensor to reach equilibrium.
2.1.2 Automatic Calibration
After the unit is turned on it will automatically calibrate to room air. The
displayshouldbestableandreading20.9%.Tochecktheoxygenconcentra-
tion of a sample gas: (after the unit has been calibrated)
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1. Connect the Tygon tubing to the bottom of the
analyzer by threading the barbed adapter onto
the oxygen sensor. (figure 2)
2. Attach the other end of the sample hose to
the sample gas source and initiate flow of the
sample to the unit at a rate of 1-10 liters per
minute (2 liters per minute is recommended).
3. Using the “ON/OFF” key, make sure the unit is in
the power “ON” mode.
4. Allow the oxygen reading to stabilize. This will normally
takeabout30secondsormore.
2.2 Calibrating the MAXO2®+Oxygen Analyzer
The MAXO2®+Analyzer should be calibrated upon initial power-up. Thereafter,
Maxtec®recommends calibration on a weekly basis. To serve as a reminder, a
one week timer is started with each new calibration. At the end of one week a
reminder icon “ ”willappearonthebottomoftheLCD.Calibrationis
recommended if the user is unsure when the last calibration procedure was
performed, or if the measurement value is in question.
100% O2verification, new calibration is required when:
 •ThemeasuredO2percentagein100%O2isbelow99.0%O2
 •ThemeasuredO2percentagein100%O2isabove101.0%O2
 •TheCALreminderIconisblinkingatthebottomoftheLCD
 •IfyouareunsureaboutthedisplayedO2percentage. (see Factors
influencing accurate readings.)
Compressed air (20.9% O2), new calibration is required when:
 •ThemeasuredO2percentagein20.9%O2isbelow19.9%O2
 •ThemeasuredO2percentagein20.9%O2isabove21.9%O2
 •TheCALreminderIconisblinkingatthebottomoftheLCD
 •IfyouareunsureaboutthedisplayedO2percentage.
(see Factors influencing accurate readings.)
A simple calibration may be made with the sensor open to static Ambient air. For
optimum accuracy Maxtec®recommends that the Sensor be placed in a closed
loop circuit where gas flow is moving across the sensor in a controlled manner.
FIGURE 2

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2.3 Operation with BC Adapter (refer to figure 3)
1. Attach the Barbed Adapter to the MAXO2®+ by threading it on to the bottom
of the sensor.
2. Connect the Tygon tube to the barbed adapter.
3. Attach the BC adapter to the other end of the Tygon tube.
4. Connect the inflator hose on the regulator to the BC adapter and Tygon tube.
5. If the MAXO2®+is not already turned on, do so now by pressing the
analyzer “ON” button.
6. Initiate flow of nitrox to the unit to allow the gas to saturate the sensor. The BC
adapter will regulate the optimum flow and pressure. Although a stable value is
usuallyobservedwithin30seconds,allowatleasttwominutestoensurethat
the sensor is completely saturated with the gas.
7. The analyzer will now look for a stable sensor signal and a
good reading. When obtained, the analyzer will display
the oxygen percentage on the LCD.
FIGURE 3
Inflator Hose
Nitrox Tank

2.4 Operation with Oxyknob Adapter (refer to figure below)
1. Attach the Oxyknob adaptor to the threaded sensor of your Maxtec Analyzer.
2. Hand tighten until sensor o-ring seals against the Oxyknob.
3. Slowly crack open the tank. Listen for a slight hissing sound.
4. Hold the Oxyknob up to the outlet of the tank.
5. Align the small hole in the bottom or side of the Oxyknob to the hole in the
outlet of the tank.
6. Hold the analyzer in place untile the reading has stabilized on the analyzer dis-
play. (about 15 seconds or less)
7. Remove Oxyknob after reading and close valve on the tank.
WARNING:
High gas pressures may cause damage to oxygen sensor and result in incorrect
readings. Turn down the tank valve as much as possible to avoid sensor damage.
Do not cover the larger holes on the Oxyknob.
Cold gas exiting a pressurized tank can cause the sensor reading to drift if
exposed for an extended period of time. Allow sensor to warm between readings
if necessary.
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3.0 GAS SAMPLE OPTIONS
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4.0 FACTORS INFLUENCING ACCURATE READINGS
4.1 Elevation Changes
•Changesinelevationresultinareadingerrorofapproximately1%ofreading
per 250 feet.
•Ingeneral,calibrationoftheinstrumentshouldbeperformedwhenelevationat
which the product is being used changes by more than 500 feet.
4.2 Temperature Effects
The MAXO2®+willholdcalibrationandreadcorrectlywithin±3%wheninthermal
equilibrium within the operating temperature range. The device must be thermally
stable when calibrated and allowed to thermally stabilize after experiencing
temperature changes before readings are accurate. For these reasons, the
following is recommended:
•Forbestresults,performthecalibrationprocedureatatemperaturecloseto
the temperature where analysis will occur.
•Allowadequatetimeforthesensortoequilibratetoanewambienttemperature.
CAUTION: “CAL Err St” may result from a sensor that has not reached thermal
equilibrium.
4.3 Pressure Effects
Readings from the MAXO2®+are proportional to the partial pressure of oxygen.
The partial pressure is equal to the concentration times the absolute pressure.
Thus, the readings are proportional to the concentration if the pressure is held
constant. Therefore, the following are recommended:
•CalibratetheMAXO2®+at the same pressure as the sample gas.
•Ifsamplegasesflowthroughtubing,usethesameapparatusandflowrates
when calibrating as when measuring.
•TheMAXO2®+oxygen sensor has been tested at pressures up to two
atmospheres absolute. Calibration or operation above this pressure is beyond
the intended use.
4.4 Humidity Effects
Humidity (non-condensing) has no effect on the performance of the MAXO2®+
8MANUFACTURED BY MAXTEC, INC.

other than diluting the gas, as long as there is no condensation. Depending on
thehumidity,thegasmaybedilutedbyasmuchas4%,whichproportionally
reduces the oxygen concentration. The device responds to the actual oxygen
concentration rather than the dry concentration. Environments where
condensation may occur are to be avoided since moisture may obstruct
passage of gas to the sensing surface, resulting in erroneous readings and slower
response time. For this reason, the following is recommended:
•Avoidusageinenvironmentsgreaterthan95%relativehumidity.
HELPFUL HINT: Dry sensor by lightly shaking moisture out, or flow a dry gas at two
liters per minute across the sensor membrane.
5.0 CALIBRATION ERRORS AND ERROR CODES
The MAXO2®+analyzers have a self test feature built into the software to detect
faulty calibrations, oxygen sensor failures, and low operating voltage. These are
listed below, and include possible actions to take, if an error code occurs.
E02: No sensor attached
MAXO2®+A: Open unit and disconnect and reconnect sensor. Unit should perform
anautocalibrationandshouldread20.9%.Ifnot,contactCustomerServicefor
possible sensor replacement.
MAXO2®+AE: Disconnect and reconnect external sensor. Unit should perform an
autocalibration,andshouldread20.9%.Ifnot,contactCustomerServicefor
possible sensor replacement or cable replacement.
E03: No valid calibration data available
Make sure unit has reached thermal equilibrium. Press and hold the Calibration
Button for three seconds to manually force a new calibration.
E04: Battery below minimum operating voltage
Replace batteries.
CAL Err St: O2 Sensor reading not stable
Wait for displayed oxygen reading to stabilize, when calibrating the device at
100%oxygen.
Wait for unit to reach thermal equilibrium (Please note that this can take up to
one half hour, if the device is stored in temperatures outside the specified
operating temperature range).
CAL Err lo: Sensor voltage too low
Press and hold the Calibration Button for three seconds to manually force a new
calibration. If unit repeats this error more than three times, contact Customer
Service for possible sensor replacement.
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FIGURE 4
CAL Err hi: Sensor voltage too high
Press and hold the Calibration Button for three seconds to manually force a new
calibration. If unit repeats this error more than three times, contact Customer
Service for possible sensor replacement.
CAL Err Bat: Battery voltage too low to recalibrate
Replace batteries
6.0 CHANGING THE BATTERIES
Should the batteries require changing, the device will indicate this in one of two ways:
 •Thebatteryicononthebottomofthedisplaywillbegintoflash.Thisicon
will continue to flash until the batteries are changed. The unit will continue
to function normally for approx. 200 hours.
 •Ifthedevicedetectsaverylowbatterylevel,anerrorcodeof“E04”willbe
present on the display, and the unit will not function until the batteries are
changed.
To change the batteries, begin by removing the three screws from the back of the
device. A #1 phillips screwdriver is required to remove these screws.
Once the screws are removed, gently separate
the two halves of the device.
The batteries can now be replaced from
the back half of the case. Be sure to
orient the new batteries as indicated in
the embossed polarity on the back case.
NOTE: If the batteries are installed incorrectly the batteries
will not make contact and the device will not operate.
Carefully, bring the two halves of the case together while
positioning the wires so they are not pinched between
the two case halves. The gasket separating the halves
will be captured on the back case half.
Reinsert the three screws and tighten until the screws are snug. (figure 4)
Thedevicewillautomaticallyperformacalibrationandbegindisplaying%ofoxgen.
HELPFUL HINT: If unit does not function, verify that the screws are tight to allow
proper electrical connection.
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FIGURE 5
Lock Lever
HELPFUL HINT (MAXO2+ AE): Before closing the two case halves together, verify
that the keyed slot on top of the coiled cable assembly is engaged on the small tab
located on the back case. This is designed to position the assembly in the correct
orientation and prevent it from rotating. Improper positioning could hinder the case
halves from closing and prevent operation when tightening the screws.
7.0 CHANGING THE OXYGEN SENSOR
7.1 MAXO2®+A Model
Should the oxygen sensor require changing, the
device will indicate this by presenting “Cal Err lo”
on the display after initiating a calibration.
To change the oxygen sensor, begin by
removing the three screws from the back of
the device. A #1 Phillips screwdriver is
required to remove these screws.
Once the screws are removed, gently separate
the two halves of the device.
Disconnect the oxygen sensor from the printed circuit board by pressing the un-
lock lever first and then pulling the connector out of the receptacle.
The oxygen sensor can now be replaced from the back half of the case.
HELPFUL HINT: Be sure to orient the new sensor by aligning the red arrow on the
sensor with the arrow in the back case. A small tab is located on the back case
that is designed to engage the sensor and prevent it from rotating within the case.
(figure 5)
NOTE: If the oxygen sensor is installed incorrectly, the case will not come back
together and the unit may be damaged when the screws are reinstalled.
Reconnect the oxygen sensor to the connector on the printed circuit board.
Carefully bring the two halves of the case together while positioning the wires to
ensure they are not pinched between the two case halves. Make sure the sensor
is fully inserted and in the proper orientation.
Reinsert the three screws and tighten until the screws are snug. Verify the unit
operates properly.
Thedevicewillautomaticallyperformacalibrationandbegindisplaying%ofoxygen.
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7.2 MAXO2®+AE Model
Should the oxygen sensor require changing, the device will indicate this by
presenting “Cal Err lo” on the display.
Unthread the sensor from the cable by rotating the thumbscrew connector
counterclockwise and pull the sensor from the connection.
Replace the new sensor by inserting the electrical plug from the coiled cord into
the receptacle on the oxygen sensor. Rotate the thumbscrew clockwise until snug.
Thedevicewillautomaticallyperformacalibrationandbegindisplaying%ofoxygen.
8.0 CLEANING AND MAINTENANCE
Store the MAXO2®+analyzer in a temperature similar to its ambient environment
of daily use.
The instruction given below describes the methods to clean the instrument,
sensor and its accessories:
Instrument
 •WhencleaningordisinfectingtheexterioroftheMAXO2®+analyzer, take
appropriate care to prevent any solution from entering the instrument.
Do not immerse unit in fluids.
Oxygen Sensor
 •Cleanthesensorwithaclothmoistenedwitha65%alcohol/watersolution.
 •Maxtec®does not recommend use of spray disinfectants because they can
contain salt, which can accumulate in the sensor membrane and impair
readings.
Accessories
 •Thethreadedbarbedadaptermaybecleanedbywashingthemwitha
65%alcohol/watersolution(permanufacturer’sinstructions).Theparts
must be thoroughly dry before they are used.
Because of the variability of the cleaning processes, Maxtec®cannot provide
specific instructions. Therefore, we highly recommend referring to the manufac-
turer’s instructions on the details of method.
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9.0 SPECIFICATIONS
9.1 Base Unit Specifications
MeasurementRange: 0-100%
Resolution:  0.1%
AccuracyandLinearity: 1%offullscaleatconstanttemperature,R.H.and
pressure when calibrated at full scale.
TotalAccuracy:  ±3%actualoxygenleveloverfulloperating
temperature range.
ResponseTime:  90%offinalvalueinapproximately15secondsat23°C.
Warm-up Time: none required
OperatingTemperature: 15°C-40°C(59°F-104°F)
Storage Temperature: -15°C - 50°C (5°F - 122°F)
Humidity:  0-95%(non-condensing)
Power Requirements: 2, AA Alkaline batteries (2 x 1.5 Volts)
Battery Life: approximately 5000 hours with continuous use
LowBatteryIndication: “BAT”icondisplayedonLCD
Sensor Type: Maxtec®MAX-250 galvanic fuel cell
ExpectedSensorLife: >900,000O2percent hours minimum 2-years in
typical applications
AModelDimensions: 3.0”(W)x4.0”(H)x1.5”(D)[76mmx102mmx
38mm]
A Weight: 0.4 lbs. (170g)
AEModelDimensions: 3.0”(W)x36.0”(H)x1.5”(D)[76mmx914mmx
38mm]Heightincludesexternalcablelength
(retracted).
AEWeight:  0.6lbs.(285g)
9.2 Sensor Specifications
Type:   Galvanicfuelsensor(0-100%)
Life: 2-years in typical applications
13
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10.0 MAXO2+SPARE PARTS AND ACCESSORIES
10.1 Included With Your Unit
Part Number Item
R217M42 Industrial Guide and Operating Instructions
R217P27 Quick Reference Calibration Card
RP76P06 Lanyard
R207P17 Threaded Adapter with Tygon Tubing
RP18P01 ScrewDriver
RP11P28 BCAdapter
R110P10 Flow Diverter
R217P10-004 Quick Reference Guide
R217P10-003 QuickReferenceGuide
R218P19 OxyknobAdapter
10.2 Standard Replacement Parts
Part Number Item
R125P02-011 MAX-250+ Internal Oxygen Sensor
R125P03-002 MAX-250EExternalOxygenSensor
R115P85 MAX-250ESFExternalOxygenSensor
R217P08 Gasket
R217P09-002 Overlay
R217P11-001 Back Assembly
R217P16-002 FrontAssembly(IncludesBoardandLCD)
R217P24 Coiled Cable Assembly
RP06P25 #4-40PanHeadStainlessSteelScrew
10.3 Optional Accessories
10.3.1 Optional Adapters
Part Number Item
 RP16P02 “T”Adapter(15mmI.D.)
 RP16P09 ScubaProAdapter
R101P01 Flow Thru Head
R110P10 Flow Diverter
X X
X X
X X
X X
X X
X X
X
X
X
X
BAT
CAL
A Model AE Model
X
X
X
X X
X X
X X
X X
X
X X
14 MANUFACTURED BY MAXTEC, INC.