Technical Specifications

Accuracy: < +2% of FS range under constant conditions EW

Analysis:
Application:
0-100% oxygen
Verify O2 content of scuba compressed air tanks
N
Calibration: Certified dry 100% oxygen or air after 8 hrs of use
Compensation: Temperature
Connections: 1x16 mm thread (see options below)
Controls: Soft touch keypad for ON/OFF and Calibration
Dimensions: 2.72” x 4.1” x 1.35”; weight 7 oz. (196 grams)
Display: 3 digit LCD 1.1” x .625”; resolution 0.1% O2
Flow Sensitivity: None between 0.2 to 10 liters per minute
Humidity: Non-condensing 0-95% RH
Linearity: + 1% under constant conditions
Pressure: Inlet - ambient or regulated; vent - atmospheric
Power: (2) 1.5V AA alkaline batteries; 13,000 hrs of use
Response Time: 90% of final FS reading in 10 seconds
Sensitivity: < 0.5% of FS range
Sensor: AII-11-75-PO2 D
Sensor Life: 32 months in air at 25ºC and 1 atmosphere
Storage Temp.: -20º to 60ºC (-4ºF to 140ºF) on intermittent basis
Temp. Range: 5º to 45ºC (41ºF to 113ºF)
Warm-up Time: None
Warranty: 12 months analyzer; 12 months sensor

Options & Accessories

AII-11-75-PO2R D Remote Oxygen Sensor Kit

A-3388 Adapter, Dome to Sensor
A-3609 Adapter, Dome to 1/8” Tube Easy user interface . . . one touch controls
A-3671 Adapter, BC with Restrictor to Sensor
A-3673 Adapter, BC with Restrictor to 1/8” Tube Simple to use . . . accurate reliable results
A-3676 Adapter, 1/8” Tube to Sensor
A-3677 Adapter, DIN to 1/8” Tube
One touch calibration . . . 100% O2 or air
A-3678 Adapter, A-Yoke to 1/8” Tube
Long battery life . . . 13,000 hrs of use
FITN-1009 Tee Adapter 15mm ID x 22mm ID x 22mm OD
FITN-1112-1 Flow Diverter Advanced sensor technology
HRWR-1157 Screwdriver
HRWR-1158 Lanyard State of the art electronics
TUBE-1018 Tubing, 1/8” x 3’
A-3657-1 Dovetail Mounting Kit
Certified ISO 9001:2008 QA System
HRWR-1075 Dovetail Female Clamp Pole/Shelf

2855 Metropolitan Place, Pomona, CA 91767 USA ♦ Tel: 909-392-6900, Fax: 909-392-3665, www.aii1.com, e-mail: diveaii@aii1.com Rev 6/11
 EW
N

Simple to use . . . accurate reliable results

One touch calibration . . . 100% O2 or air
Long battery life . . . 13,000 hrs of use
Advanced sensor technology
Certified ISO 9001:2008 QA System

Optional Accessories

Remote Oxygen Sensor Kit HRWR-1157 Screwdriver

HRWR-1158 Lanyard

Palm O2 DR with A-3654 CABL-1009 Cable 6 ft. AII-11-75-PO2RD

Remote Sensor Connector Phone Plug with Lock Nut Oxygen Sensor

2855 Metropolitan Place, Pomona, CA 91767 USA ♦ Tel: 909-392-6900, Fax: 909-392-3665, www.aii1.com, e-mail: diveaii@aii1.com Rev 6/11
Copyright © 6/11 All Rights Reserved

Analytical Industries Inc. dba Advanced Instruments Inc.,

2855 Metropolitan, Pomona, CA 91767 USA.
Tel: 909-392-6900, Fax: 909-392-3665
Email: sales-industrial@aii1.com, Web: www.aii1.com

This manual may not be reproduced in whole or in part without

the prior written consent of Analytical Industries Inc.
Table of Contents 1 Introduction
1 Introduction 1 Congratulations on your purchase, these Instructions for Use describe the pre-
cautions, set-up, operation, maintenance and specifications of the Palm O2
1.1 Indications for Use 1 Oxygen Analyzer.
1.2 Intended Use 2
1.3 Device Description 2 This symbol means CAUTION – Failure to read and comply with the
2 Quality Control Certification 3 Instructions for Use could damage the device and possibly jeopardize
the well being of the user.
3 Safety Warnings 4
Note: Analytical Industries Inc. cannot warrant any damage resulting from the
4 Start-up 6
misuse, unauthorized repair or improper maintenance of the device.
4.1 Contents of Shipping Container 6
4.2 Controls 6 1.1 Indications for Use
4.3 Start-Up Test 6 The Palm O2 Oxygen Analyzer is intended to measure and display the concen-
4.4 Calibration 7 tration of oxygen in compressed breathing air tanks intended for scuba diving.
4.5 Mounting 9
Users must read the following statements as they are essential to re-
5 Operation 10 ducing the risk of use error due to ergonomic features of the device or
5.1 Principle of Operation 10 the environment in which the device is intended to be used.
5.2 Application Considerations 11
5.3 Calibration 12 The device has been designed and manufactured in such a way that when used
5.4 Sampling 12 under the conditions and for the purposes intended, they will not compromise
the safety of the users or other persons.
6 Maintenance 14
6.1 Serviceability 14 Conformity with essential requirements has been demonstrated by verifying the
6.2 Battery Replacement 14 performance of the device under normal conditions, bench testing and deter-
6.3 Oxygen Sensor Replacement 15 mining that undesirable malfunctions constitute minimal risk to users.
6.4 Reassembly 16
6.5 Remote Oxygen Sensor Replacement 17 Do not sterilize, autoclave, liquid sterilize, immerse in any liquid or expose the
device or accessories to steam, ethylene oxide or radiation sterilization.
7 Troubleshooting 18
The device is intended to be re-usable. Should the device or accessories come
8 Specifications 19
in contact with patient bodily fluids, either dispose of the device or clean with a
8.1 Spare Parts & Optional Accessories 20 soft cloth dampened with 70% isopropyl alcohol solution in water and allow the
components to air-dry before re-use .
9 Warranty 22
10 Material Safety Data Sheet (MSDS) 23 Do not operate the analyzer near equipment capable of emitting high levels of
electromagnetic radiation as the reading may become unstable.
10.1 Disposal 23

i 1
In order to obtain optimum performance, the operation of the device must be
performed in accordance with these Instructions for Use. Maintenance should 2 Quality Control Certification
be performed only by trained personnel authorized by the manufacturer.
Customer: ________________________ Order No. _____________ Date: _______
1.2 Intended Use
The Palm O2 Oxygen Analyzer is intended to measure and display the concen-
tration of oxygen of oxygen in compressed breathing air tanks intended for Model: Palm O2 Oxygen Analyzer, Diving S/N _______________
scuba diving.
Sensor: ( ) AII-11-75-PO2D or ( ) AII-11-75-PO2RD S/N _______________
1.3 Device Description (plus A-3654, CABL-1009)
The Palm O2 Oxygen Analyzer is designed to be handheld but can be tempo-
rarily placed in a fixed position on a pole or shelf with optional bracket attach- Electronics: A-1190 PCB Assembly Main Software Version _______________
ments as illustrated in Section 8.1. A remote sensor option is available which Accessories: BATT-1008 Battery, 1.5V AA Alkaline (Qty 2)
makes the Palm O2 more flexible and easier to use. Either way, it provides P-0188 Manual, Instructions for Use ……………………. Included ________
continuous, fast, reliable and accurate oxygen measurements.
PASS
The device utilizes an electrochemical galvanic fuel cell type oxygen sensor of
QC Test: LCD display 3-1/2 digits ……………………………………………………. ______
the type that is extensively used to measure oxygen concentrations from 0%
to 100% in gas streams. Oxygen, the fuel for this electrochemical transducer, Battery symbol displays when battery is low ……………………….. ______
diffusing into the sensor through a gas permeable membrane reacts chemi- Span adjustment +10-30% FS with 100% oxygen calibration ______
cally at the sensing electrode to produce an electrical current output propor-
tional to the oxygen concentration in the gas phase. The sensor has an abso- Following calibration with 99-100% oxygen and flushing with
lute zero meaning that when no oxygen is present to be chemically reacted ambient air, oxygen reading as displayed by LCD 20.9% +2% ____
the LCD displays 00.0 oxygen.
Span adjustment +10-30% FS with air calibration ……………….. ______
The sensor’s signal output is linear over the entire range, remains virtually Following calibration with air (20.9% oxygen) and exposing
constant over the specified useful life and drops off sharply at the end. The to 99-100% oxygen, LCD displays 100% +2% ……………………. ______
sensor itself requires no maintenance and is simply replaced at the end of its
Overall inspection for physical defects ………………………………... ______
useful life like a battery. Inasmuch as the sensor is a transducer in its own
right, its expected life is not affected by whether the analyzer is ON or OFF.
Options: Item No. Qty Item No. Qty
A battery powered state-of-the-art micro-processor converts the sensor’s sig- A-3388 Adapter, Dome to Sensor ____ A-3678 Adapter, A-Yoke to 1/8” Tb ____
nal output representing the partial pressure of oxygen in the gas stream being
A-3671 Adapter, BC Rstr to Sensor ____ FITN-1009 Tee Adapter …………. ____
analyzed. The resulting oxygen reading is displayed by a large easy to read
backlit liquid crystal display (LCD) that has a resolution of 0.1% oxygen. The A-3676 Adapter, 1/8” Tb to Sensor ___ FITN-1112-1 Flow Diverter …….. ___
microprocessor is controlled from a keypad and provides system diagnostics
and warning indicators for continuous monitoring that enhance both safety TUBE-1018 Tubing, 1/8” x 3’ …….. ____ HRWR-1157 Screwdriver ………….. ____
and effectiveness. A-3609 Adapter, Dome to 1/8” Tube ____ HRWR-1158 Lanyard ……………….. ____

Prior to shipment, every device is thoroughly tested at the factory and docu- A-3673 Adapter, BC Rstr to 1/8” Tb ____ HRWR-1075 Dovetail Clamp ……… ____
mented in the form of a Quality Control Certification that is included in the A-3677 Adapter, DIN to 1/8” Tube ____ A-3657-1 Dovetail Mounting Kit
Instructions for Use supplied with every device. (A-3657, HRWR-1162) ……………… ____

Delivery:

2 3
 NEVER operate the device in any manner described below doing so
3 Safety Warnings may compromise the clinical condition or the safety of patients, users
or other persons.
ALWAYS follow the statements below as they are essential to reducing
the risk of use error due to ergonomic features of the device or the If the reading is unstable or a malfunction is suspected.
environment in which the device is intended to be used. After the ‘ERR’ or ‘LO’ messages are displayed on the LCD.
Only trained personnel who have read, understand and agree to follow the Near equipment capable of emitting high levels of electromagnetic radia-
Instructions for Use should operate the device. tion (EMI) or radio frequency interference (RFI).
Retain the Instructions for Use for future reference. Expose the device; particularly the LCD display or sensor to sources of
Refer service needs to trained authorized personnel. Failure to do so may extreme heat, cold or excessive sunlight beyond the device’s storage
cause the device to fail and void the warranty. temperature range, refer to Section 8 for extended periods of time.

Inspect the device and accessories before operating and ensure: (a) there In a gas stream with a vacuum greater than 14” water column.
is no evidence of physical damage; (b) the sensor (particularly the sensing Immerse the device, oxygen sensor or optional coiled cable in any liquid.
surface) and electrical connections are dry; and, (c) the sensor is installed
Outside of the parameters specified in Section 8 particularly at flow rates
and is upstream from any humidifying device for accurate calibration and
oxygen readings. greater than 10 liters per minute - the backpressure generated produces
erroneously high oxygen readings.
Calibrate: (a) with a known source of dry air or 100% oxygen before using
Calibrate: (a) with 20.9% oxygen or room air with the intent of taking
each day or after 8 hours of continuous use; (b) when the temperature or
pressure of the operating environment changes; (c) if the oxygen sensor oxygen measurements at oxygen levels above 30% oxygen; (b) in a
has been disconnected and reconnected; (d) after the battery or oxygen humidified gas stream or atmosphere; (c) without allowing a newly in-
sensor has been replaced. stalled sensor to stabilize for 15-20 minutes in ambient air.

Sampling flowing gas: (a) install the optional accessories as shown in Sec- Attempt to sterilize, autoclave, liquid sterilize, immerse in any liquid or
tion 8.1 and (b) assure there is a tight fit between the components. expose the device or accessories to steam, ethylene oxide or radiation
sterilization.
Sampling static, ambient or controlled atmospheres unscrew and remove
Open the main compartment of the device, except to change the integral
all components from the oxygen sensor.
oxygen sensor.
Clean the device and accessories in accordance with Section 6.1.2. Open the oxygen sensor or probe the sensing surface, refer to Section 10
Battery replacement Section 6.2: (a) replace the batteries when the ‘LO’ in the event the sensor should leak and someone comes in contact with
message is displayed on the LCD and (b) calibrate the analyzer after re- the electrolyte from inside the sensor.
placing the batteries. Optional remote sensor with a cable that appears worn, torn or cracked,
Oxygen sensor installation or replacement Section 6.3 or 6.5: allow the or, allow an excess length of cable near the patient’s head or neck; se-
new sensor to stabilize for 15-20 minutes in ambient air before attempting cure it to the bed rail or other suitable object to avoid the possibility of
to calibrate. strangulation.
Store the device by turning the power OFF and removing the batteries if Allow the device or oxygen sensor to be serviced, repaired or altered by
the device will not be operated for over thirty (30) days. anyone except trained personnel – failure to do so may endanger the
patient or damage the device rendering the warranty null and void.
Attempt to repeat the procedure that caused a perceived malfunction and
refer to troubleshooting hints in Section 7 before concluding the device is
faulty. If in doubt, contact the manufacturer for assistance.

4 5
 4.4 Calibration
4 Start-Up Electrochemical oxygen sensors generate slightly different signal outputs under
identical conditions due to variations in the thickness of the sensing membrane
4.1 Contents of Shipping Container: and manufacturing process.
The contents include:
Palm O2 Oxygen Analyzer Simulate the application for optimum accuracy: Review Sections 3
Safety Warnings and 5.2 Application Considerations before proceeding.
P-1088 Instruction for Use
The devices are designed to meet the requirements for both ambient
Note: See Section 6.5 for remote sensor option
and elevated oxygen measurements but should NEVER be calibrated
and Section 8.1 for optional accessories.
with air or 21% oxygen with the intent of taking oxygen measurements
at oxygen levels above 30% oxygen.
The device is shipped with the batteries
and oxygen sensor installed at the factory
Accordingly, the devices may be calibrated with either air (20.9%) or
and is ready for calibration and use.
100% oxygen which requires the user to make a conscious decision to
bypass or skip the recommended 100% oxygen calibration.
Any optional equipment is secured in a plastic bags and stored next to the
analyzer in the shipping container.
Set-Up:
Inspect the box and contents for shipping damage. If any component appears
Static Atmosphere Flowing Gas Stream Flowing from Tank
damaged, do not attempt to operate the device and contact the manufacturer
immediately, refer to section 9.

4.2 Controls
The analyzer employs a micro-processor
that is controlled by two (2) pushbuttons
located on the keypad on the front cover.
1. CAL initiates the calibration routine.
2. ON/OFF sends power to the electronics

4.3 Start-Up Test

Pressing the ON/OFF key, above right, not only sup-
plies power to the electronics but initiates diagnostic See Section 8.1
tests of the electronics and battery voltage. for optional
accessories
Low battery voltage detected during the Start-
Up Test or normal operation causes the LCD
display to alternate between LO and the oxy-
gen value in the SAMPLING mode.

The sensor’s signal output must be confirmed

by calibrating the device as described in the
following section.

6 7
Procedure Calibration Fails
Calibrate: (a) with a known source of dry air, If the calibration fails, the LCD will display ERR as
21% or 100% oxygen before using each day illustrated.
or after 8 hours of continuous use; (b) when
the temperature or pressure of the operating An unsuccessful calibration can be caused by
environment changes; (c) if the oxygen sensor has several problems with the sensor, calibration
been disconnected and reconnected; (d) after the gas or electronics. Dropping the device will
battery or oxygen sensor has been replaced. damage the sensor and electronics.
1. Expose the sensor to the calibration gas (refer
to preceding section) for approximately 30 sec- Do not proceed until corrective action is taken
onds to allow the sensor to stabilize. and the device is calibrated successfully.

2. Continue exposing the sensor to the calibration

gas until the calibration routine is complete. If after three (3) unsuccessful attempts to
3. Press and hold the CAL pushbutton for three (3) calibrate: review section 7 for possible causes and corrective action or
seconds to initiate the calibration routine. contact Advanced Instruments Inc. at 909-392-6900.
4. The LCD displays CAL, top right, during the
calibration routine which takes 15-20 seconds.
4.5 Mounting
5. The software determines from the sensor’s The device can be mounted to a 1” diameter pole or a book shelf using the
signal output whether the device is being cali- optional Dovetail Mounting Kit (P/N A-3675-1) and Dovetail Female Clamp Pole/
brated with 100% or 21% oxygen. Shelf (P/N HRWR-1075) as illustrated below.
6. If the calibration is successful, the LCD will
display, middle and bottom right, the oxygen
value of the calibration gas and returns to the
SAMPLING mode.
7. Remove the calibration gas and begin sampling.

The dovetail male bracket, top left and middle, is secured to the rear of the
enclosure with one (1) screw and held in place by registration holes molded
into the enclosure.

The 1” diameter dovetail female, top right, clamp pole/shelf is an optional ac-
cessory commonly found in medical applications.

The v-shaped male component simply slides into and out of the pole or shelf
mounted female section.

8 9
 5.2 Application Considerations
5 Operation
Effect of Temperature
5.1 Principle of Operation All membrane clad electrochemical sensors are temperature dependent due to
The Palm O2 Oxygen Analyzer utilizes an electrochemical galvanic fuel cell type the expansion and contraction of the Teflon sensing membrane. As result more
oxygen sensor of the type that is extensively used to measure oxygen concen- or less of the sample gas including oxygen to be reacted diffuses into the sen-
trations from 0% to 100% in gas streams. Oxygen, the fuel for this electro- sor. The oxygen sensor’s electrical current signal output varies linearly with
chemical transducer, diffusing into the sensor through a gas permeable mem- oxygen concentration. The signal also varies with changes in ambient tempera-
brane reacts chemically at the sensing electrode to produce an electrical current ture. The temperature coefficient is typically 2.54% of the signal or reading per
output proportional to the oxygen concentration in the gas phase. The sensor degree C change in temperature.
has an absolute zero meaning that when no oxygen is present to be chemically
reacted the LCD displays 00.0 oxygen. The temperature dependent current signal output is compensated by using a
resistor-thermistor network. With a proper resistor-thermistor network, the
The sensor’s signal output is linear over the entire range, remains virtually con- signal can be compensated to within +5% of the oxygen reading over the 5-
stant over the specified useful life and drops off sharply at the end. The sensor 45°C temperature range. This is the worse case situation when going from one
itself requires no maintenance and is simply replaced at the end of its useful life extreme of the operating temperature range to the other. The error will be
like a battery. Inasmuch as the sensor is a transducer in its own right, its ex- eliminated when the thermistor in the temperature compensation network and
pected life is not affected by whether the analyzer is ON or OFF. the electrolyte inside the sensor reach thermal equilibrium in approximately 45-
60 minutes.
The relationship between the sensor’s signal and changes with the oxygen
concentration is both proportional and linear, thus allowing single point Erroneous oxygen readings can result if the gases flowing over the
calibration. Other factors that can affect the signal output are described sensing area of the sensor are not at ambient temperature. This occurs
in Section 5.2 Application Considerations and Section 3 Safety Warnings because the sensor is exposed to different temperatures. The sensing
which should be read before use. area of the sensor is o-ring sealed in the sample gas and the tempera-
ture compensation network at the rear of the sensor is exposed to ambient
Historically, the expected life of galvanic fuel type sensors has been specified as temperature.
“in air (20.9% O2) at 25°C and 760mm Hg”. The actual life of any galvanic fuel
type sensor is inversely affected by changes in the average oxygen concentra- Effect of Pressure
tion, temperature and pressure it is exposed to during its useful life. For exam- Electrochemical sensors actually measure the partial pressure, not the percent-
ple, the AII-11-75-PO2D and AII-11-75-PO2RD sensors have a 32 month ex- age, of oxygen in the gas stream they are exposed to. These sensors are accu-
pected life in air (20.9% oxygen) at 25°C and ambient pressure, however, in a rate at any pressure provided the pressure is constant and the analyzer has
100% oxygen atmosphere the expected life is 12.6 months [60mo/ been calibrated at the same pressure as the sample gas measured.
(100%/20.9%)].
For example, when connected to a gas stream where the pressure varies, oxy-
The Palm O2 Oxygen Analyzer is battery powered by (2) AA alkaline batteries gen sensor causes the analyzer to display fluctuating oxygen readings. The
and controlled by a state-of-the-art microprocessor. The batteries provide fluctuations in the readings displayed are not related to a change in the oxygen
enough power to operate the analyzer continuously for approximately 13,000 percentage but to the change in partial pressure.
hours. Both devices utilize a membrane type keypad for users to communicate
commands to the microprocessor. The digital electronics provide features such Calibrate at the temperature and pressure (altitude) at which the ana-
as system diagnostics and warning indicators that enhance both safety and lyzer will be operated.
effectiveness. The design criteria, quality program and performance features
ensure reliable and accurate oxygen measurements.

10 11
Effect of Humidity 5.4.1 Flowing Gas Streams
The analyzer is not affected by non-condensing relative humidity (RH). How-
1. Place the sensing area of the sensor into the gas stream to be analyzed
ever, the addition of water vapor or moisture increases the total pressure
upstream of any humidification equipment.
thereby diluting or decreasing the oxygen concentration of the gas mixture
resulting in a lower oxygen reading. 2. Assure that the flow rate of the gas stream does not exceed ten (10) liters
per minute. Exceeding ten (10) liters per minute generates backpressure.
3. Check the gas stream and particularly the mechanical connection for leaks
Effect of Condensation that dilute the gas stream with ambient air.
Excessive condensation collecting on the sensing area or the electrical connec-
4. Assure there are no restrictions in the circuit downstream of the sensor
tions at the rear of the sensors can adversely impact the performance of elec-
that could generate backpressure on the sensor.
trochemical sensors. Condensation blocks the diffusion path of oxygen into the
sensor and can reduce the oxygen reading to 00.0 if the condensation covers 5. Select a means of flowing gas to the sensor, see below and Section 8.1.
the entire sensing area. Condensation on the electrical connections at the rear 6. Ensure the method selected (a) facilitates the movement of gas to and
of the sensor can affect oxygen readings. Remedy either situation by shaking from (sensor adapters include a vent hole) the sensing area of the sensor,
out the condensation and allowing the sensor to air dry. (b) forms a tight seal between the components and (c) limit the flow past
the sensor to a rate of 5-8 liters per minute or slightly crack a tank of
Erroneously characterized in many instances as a sensor failure, excessive con- breathing air until it first hisses out.
densation is remedied by gently wiping away the condensation with a soft cloth
7. Once the sensor is exposed to the gas stream allow approximately sixty
or simply allowing the sensor to air dry.
(60) seconds for the reading to stabilize as displayed by the LCD.
Effect of Electromagnetic Radiation
Tested over a 26 MHz to 1000 MHz electromagnetic field, the analyzer is sus-
ceptible at all frequencies tested except those between 930 and 990 MHz.

Never operate the analyzer near equipment capable of emitting high

levels of electromagnetic radiation. Do not continue to operate the
analyzer if the reading becomes unstable.

5.3 Calibration
Calibrating the analyzer during normal operation involves the same
precautions and procedures as those described in Sections 4.4 Start-up
Calibration with the same cautions to review Sections 3 Safety Warn-
ings and 5.2 Application Considerations.

5.4 Sampling
Assuming the START-UP TESTS are completed successfully the devices default
to the SAMPLING mode. 5.4.2 Static Atmospheres
Expose the sensing area of the sensor to the atmosphere allow-
Never operate the analyzer if the reading is unstable or if a malfunction
ing approximately sixty (60) seconds for the reading to stabilize
is suspected. If calibration is required as indicated herein, do not pro-
and observe the reading displayed by the LCD.
ceed until the analyzer is calibration successfully.
If placing the entire sensor inside the controlled atmos-
phere review Section 5.2

12 13
 Procedure:
6 Maintenance 1. Open the enclosure: Remove the four (4) Phillips
screws from the rear of the enclosure, FIG 1.
Review Section 3 Safety Warnings and Section 7 Troubleshooting for
guidelines on servicing the devices. 2. Separate the enclosure and an place it on a flat
surface, FIG 2.
6.1 Serviceability 3. Remove the battery: Grasp the middle of a battery
Do not open the main compartment of the analyzer, as it contains no service- and gently pull straight up.
able parts inside. Never attempt to repair the analyzer or sensor by yourself as 4. Locate the positive (+) and negative (-) terminals
you may damage the analyzer which could void the warranty. on the battery. FIG 1
5. Assure the battery contacts are clean.
6.1.2 Cleaning / Reuse Instructions
Clean the device, oxygen sensor and accessories with a soft cloth dampened 6. Align the battery’s positive (+) terminal with the
with either water or mild isopropyl alcohol solution (70% isopropyl alcohol corresponding (+) battery symbol printed on the
solution in water), if necessary, before re-use. Allow the components to air-dry PCB Assembly.
after cleaning. 7. Install the battery: Align the battery over the termi-
nal clip mounted on the PCB Assembly and press
6.2 Battery Replacement down until the battery snaps into place, FIG 2. FIG 2
The Palm O2 Oxygen Analyzer is powered by two 1.5V AA alkaline batteries 8. Repeat steps 3-7 with the remaining battery.
with an approximate life of 13,000 hours.
9. Reassemble the device as shown in section 6.4
A low battery indicator circuit monitors the battery supply 10. Calibrate, see section 4.4, the device after replacing the batteries.
voltage and sends a signal directly to the LCD when the bat-
tery voltage reaches a preset level that activates the battery 6.3 Oxygen Sensor Replacement - Standard Integral Sensor
symbol in the LCD. The design of the electronics is intended for only the Analytical Industries Inc.
AII-11-75-PO2 or AII-11-75-PO2R Oxygen Sensors. Use of a different oxygen
The batteries are located the top section or front of the ana- sensor may result in an erroneous oxygen reading.
lyzer and secured by terminals mounted directly on the PCB
Assembly. NEVER - Open the oxygen sensor or probe the sensing surface, refer
to Section 10 in the event the sensor should leak and someone comes
in contact with the electrolyte from inside the sensor.

Procedure - Standard Integral Sensor

1. See 6.2 step 1 above.
2. See 6.2 step 2 above.
3. Disconnect the oxygen sensor: Press
down on the latch arm, see arrow,
and pull back on the male connector
attached to the sensor from the fe-
male connector attached to the PCB
Assembly, FIG 3.

FIG 3

14 15
4. Remove the oxygen sensor, FIG 4: 6.5 Oxygen Sensor Replacement - Optional Remote Sensor
(a) Lift up the rear of the sensor where The design of the electronics is intended for only the Analytical Industries Inc.
the connector wires are attached. AII-11-75-PO2 or AII-11-75-PO2R Oxygen Sensors. Use of a different oxygen
(b) Pull the front end of the sensor out sensor may result in an erroneous oxygen reading.
of the retaining collar, arrow right,
molded into the gasket that seals the NEVER - Open the oxygen sensor or probe the
two sections of the enclosure. sensing surface, refer to Section 10 in the
5. Install the new oxygen sensor: event the sensor should leak and someone
(a) Align the rear of the sensor as shown comes in contact with the electrolyte from inside the
in FIG 5, but do not install. FIG 4 sensor.
(b) Insert the sensor into the molded collar, arrow
FIG 6, and align the outer shoulder with the front edge of the collar. With this configuration the integral oxygen sensor is
(c) Locate the registration peg indicated by the arrow circled in FIG 5. replaced by a connector module (P/N A-3654). The
(d) Gently press the hole where the wires exit the sensor onto the external oxygen sensor (P/N AII-11-75-PO2R) is con-
registration peg, FIG 5. nected to the module by a cable (P/N CABL-1009) with
phone plug and locking nut attached at both ends. The
cable is coiled and extends to 6 ft.

Procedure - Optional Remote Sensor

1. Unscrew the locking nut from the connector located
at the rear of the oxygen sensor.
2. Remove the new replacement sensor from its shipping
packaging.
3. Insert the phone plug into the connector at the rear
FIG 6 of the oxygen sensor and finger tighten the locking nut.
FIG 5
4. Allow the new replacement oxygen sensor to stabilize
for approximately 30 minutes in its new environment.
6. Connect the sensor, reverse section step 3. 5. Calibrate, see section 4.4, after replacing the remote
7. Reassemble the device as shown in section 6.4. oxygen sensor.
8. Calibrate, see section 4.4, the device after replacing
the sensor.

6.4 Reassembly
To ensure proper operation after replacing the sensor or
batteries check the following points:
1. The batteries are secured in the terminal clip.
2. The sealing gasket is registered onto the 4 pegs molded into FIG 7
the bottom section of the enclosure.
3. The sensor is registered as shown in FIG 5 and FIG 7 and the connecting
wires are not bent or bound when closing up the enclosure and tightening
the Phillips screws, FIG 6.

16 17
7 Troubleshooting 8 Specifications
If the recommended corrective action does not resolve the problem return the Accuracy: < 2% of FS range under constant conditions
device to the factory for service.
Analysis: 0-100% oxygen

Symptom Corrective Action Alarms: Analyzer none

Calibration: Certified dry 100% oxygen or air after 8 hrs of use
Device appears to be physi- Turn device ON – if it successful passes
Compensation: Temperature
cally damaged calibration – proceed
Connections: 1x16mm thread or o-ring diverter
No display when analyzer is Replace batteries
turned ON Check battery polarity Controls: Soft touch keypad for ON/OFF and CAL
Check and/or clean battery contacts Dimensions: 2.72” x 4.1” x 1.35”; weight 7 oz. (196 grams)
Display: 3 digit LCD 1.1” x .625”; resolution 0.1% O2
‘LO’ displayed when analyzer is Replace battery and calibrate device
turned ON or in use. Flow Sensitivity: None between 0.2 to 10 liters per minute
Humidity: Non-condensing 0-95% RH
‘ERR’ displayed when analyzer Replace oxygen sensor
fails calibration Linearity: + 1% under constant conditions
Pressure: Inlet – ambient or regulated; vent - atmospheric
No response to keypad Replace battery
Power: (2) 1.5V AA alkaline batteries; 13,000 hrs of use
Cannot turn device OFF Calibration routine in process – wait until Response Time: 90% of final FS reading in 10 seconds
completed
Sensitivity: < 0.5% of FS range
Reading displayed by LCD Replace sensor Sensor: AII-11-75-PO2D; optional remote sensor AII-11-75-PO2RD
does not change when oxygen
level changes Sensor Life: 32 months in air at 25ºC and 1 atmosphere
Storage Temp.: -20º to 60ºC (-4ºF to 140ºF) on intermittent basis
After calibration in 100% dry Check primary oxygen delivery device
oxygen, analyzer reading drifts Replace sensor that is nearing the end of Temp. Range: 5º to 45ºC (41ºF to 113ºF)
more than 2% over 8 hours its useful life
Warm-up Time: None
Warranty: 12 months analyzer; 12 months sensor (any application)
Reading does not stabilize or Relocate analyzer away source of RF or
fluctuates erratically electromagnetic radiation emissions.
Wait 5 minutes and repeat calibration
Replace sensor, repeat calibration

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8.1 Spare Parts & Optional Accessories
Spare Parts:
AII-11-75-PO2D Oxygen Sensor
BATT-1008 Battery (2x) 1.5V AA Alkaline
P-1087 Instructions for Use
A-1162 PCB Assy Main

Optional Accessories:

Notes:

HRWR-1157 Screwdriver
HRWR-1158 Lanyard

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9 Warranty 10 Material Safety Data Sheet (MSDS)
Coverage
Under normal operating conditions, the analyzer and sensors are warranted to Product name Electrochemical Galvanic Fuel Cell Oxygen Sensor
be free of defects in materials and workmanship for the period specified in the
current published specifications. To make a warranty claim, you must return the Exposure Sealed device with protective coverings, normally no hazard
item properly packaged and postage prepaid to:
Ingredients Carcinogens - none; Potassium Hydroxide (KOH), Lead (Pb)
Analytical Industries Inc.
Properties Completely soluble in H2O; evaporation similar to H2O
2855 Metropolitan Place
Pomona, Ca 91767 USA Flash Points Not applicable, non-flammable
T: 909-392-6900, F: 909-392-3665
E: diveaii@aii1.com, W: www.aii1.com Reactivity Stable; avoid strong acids, emits fumes when heated

Analytical Industries in their sole discretion shall determine the nature of the Health Hazard KOH entry via ingestion - harmful or fatal if swallowed;
defect. If the item is determined to be eligible for warranty we will repair it or, eye - corrosive, possible loss of vision;
at our option, replace it at no charge to you. If we choose to repair your item, skin contact - corrosive, possible chemical burn.
we may use new or reconditioned replacement parts of the same or upgraded Liquid inhalation is unlikely.
design. This is the only warranty we will give and it sets forth all our responsi- Lead - known to cause birth defects, contact unlikely
bilities, there are no other express or implied warranties. Symptoms Eye contact - burning sensation; skin contact - slick feeling
The warranty begins with the date of shipment from Analytical Industries and is Protection Ventilation - none; eye - safety glasses; hands - gloves
limited to the first customer who submits a claim for a given serial number
which must be in place and readable to be eligible for warranty and will not Precautions Do not remove Teflon and PCB coverings; do not probe with
extend to more than one customer or beyond the warranty period under any sharp objects; avoid contact with eyes, skin and clothing.
conditions.
Action KOH Use rubber gloves, safety glasses and H2O and flush all
Exclusions Leak surfaces repeatedly with liberal amounts of H2O
This warranty does not cover normal wear and tear; corrosion; damage while in
transit; damage resulting from misuse or abuse; lack of proper maintenance;
unauthorized repair or modification of the analyzer; fire; flood; explosion or 10.1 Disposal
other failure to follow the Owner’s Manual. Oxygen sensors and batteries should be disposed of in accordance with local
regulations for batteries.
Limitations
Analytical Industries shall not liable for losses or damages of any kind; loss of WEEE regulations prohibit electronic products from being placed
use of the analyzer; incidental or consequential losses or damages; damages in household trash bins.
resulting from alterations, misuse, abuse, lack of proper maintenance; unau-
thorized repair or modification of the analyzer. Electronic products should be disposed of in accordance with local
regulations.
Service
Contact us between 8:00am and 5:00pm PST Monday thru Thursday or before
12:00pm on Friday. Trained technicians will assist you in diagnosing the prob-
lem and determining the appropriate course of action.

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