ANALOX O2 Portable User manual

Analox Limited
15 Ellerbeck Court, Stokesley Business Park,
North Yorkshire, TS9 5PT, UK
UK/RoW T: [phone] F: [phone]
US T: [phone]
W: www.analoxsensortechnology.com E: [email protected]
Copyright © 2017 Analox Ltd. All Rights Reserved.
O2 Portable
User Manual
Commercial in Confidence

O2 Portable
User Manual Int. Approved
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Copyright © 2017 Analox Ltd. All Rights Reserved.
Commercial in Confidence
List of Contents
1Introduction ................................................................................................................. 3
2Controls....................................................................................................................... 4
2.1 Controls of the O2 Portable..................................................................................... 4
3Calibration ................................................................................................................... 5
3.1 Air calibration ....................................................................................................... 5
3.2 Pure oxygen calibration for measuring oxygen purity up to 100%................................ 5
4Operation .................................................................................................................... 6
4.1 Universal flow adaptor ........................................................................................... 6
4.2 DII flow adaptor .................................................................................................... 6
5Troubleshooting............................................................................................................ 7
6Maintenance................................................................................................................. 8
6.1 Battery replacement. ............................................................................................. 8
6.2 Sensor replacement............................................................................................... 8
6.3 Care of the O2 Portable.......................................................................................... 9
7Safety Information O2 Portable .................................................................................... 10
7.1 Battery .............................................................................................................. 10
7.2 Sensor ............................................................................................................... 10
7.3 Sensor Handling Information. ............................................................................... 10
8Warranty ................................................................................................................... 11
9Specifications ............................................................................................................. 12
10 Spares & accessories............................................................................................... 13
10.1 Spares ............................................................................................................... 13
10.2 Accessories......................................................................................................... 13
11 Disposal ................................................................................................................ 14
12 Declaration of conformity......................................................................................... 15

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1Introduction
The O2Portable Oxygen Analyser is designed to measure oxygen levels in the range 0.1 100% O2.
The analyser should be used for cylinder oxygen level verification or for monitoring a gas mixing
panel but should not be used for both. If the analyser is used for measuring the oxygen level in the
output from a mixing panel, another O2Portable should be used for cylinder verification purposes.
The O2Portable has a large digital display and operates from an internal temperature compensated
3-year life (Expected) electrochemical oxygen sensor. Power is provided by a 9V, 4000-hour life
battery giving up to 3 year operation before replacement is necessary.
The O2Portable is a water-resistant drop resistant totally self-contained unit designed specifically
for all the diving industry Sport (NITROX), Commercial and Military where hostile environmental
conditions are the norm not the exception.
Your O2Portable is supplied ready to use. On receipt of the unit, please check for damage. If there
is any damage, contact your supplier.
WARNING
It is important that
these instructions are read
before the analyser is used!

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2Controls
2.1 Controls of the O2Portable
2.1.1 The analyser is fitted with an on/off switch located on the front of the unit. Push the switch
up or down to turn the unit on and return it to the central position to turn it off. When it is
switched on the analyser's display will show an oxygen reading but do not use before
calibration (see section 3.0).
2.1.2 The low battery warning is a battery symbol in the corner of the display. When present,
change the batteries before using the instrument (see section 8.0 Maintenance).
2.1.3 A waterproof calibration knob is located on the front. Turn it fully from left to right and then
fully left, the reading should increase and then decrease. (If the reading does not change
see section 8.0 Maintenance).
WARNING
Do NOT use when
the LOW BATTERY symbol is on!
ANALOX O2PORTABLE OXYGEN ANALYSER

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3Calibration
3.1 Air calibration
3.1.1 Air calibration is essential before every use and is performed as follows.
3.1.2 Ensure that any flow adaptors are removed and the reading on the display has stabilised.
3.1.3 Expose the analyser to clean air for two minutes and adjust the calibration knob until the
display reads the correct value using the humidity chart (You can find the humidity chart on
the inside of the back cover). If this is not possible refer to paragraph 3.4 or to section 8.0
Maintenance.
3.1.4 It is possible that at very high altitude normal calibration is not achievable. In this event
you must ascertain the actual pressure in BAR and multiply the atmospheric oxygen percent
(20.9%) by this pressure and set the reading during calibration to the calculated level
(this is the surface equivalent oxygen percentage). When you measure the level of
oxygen in the sample you must divide the reading by the same atmospheric pressure value
to obtain the true percentage of Oxygen in your sample.
For Example: At an atmospheric pressure of 0.8 BAR the surface equivalent oxygen
percentage is 20.9% x 0.8 = 16.7%O2 Surface Equivalent. If the reading you then
obtain from your sample is 32.0% you must divide this by 0.8 to obtain the true
Oxygen percentage, 32.0/0.8 = 40.0%O2 True Percentage.
3.1.5 The analyser is now ready for oxygen measurement.
WARNING
The analyser is sensitive to oxygen partial pressure.
Calibration must always be carried out at the same
atmospheric pressure as oxygen measurement.
3.2 Pure oxygen calibration for measuring oxygen purity up to 100%.
3.2.1 Connect 100% bottled oxygen (Certified) to the universal flow adaptor (Available as an
accessory, see section 10.2) and adjust the flow rate to between 0.5 and 1.0 litre per minute.
3.2.2 Allow the reading to settle.
3.2.3 Expose to atmosphere, the reading should display +/- 0.4 of corrected humidity value i.e.
between 20.5 and 21.3

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4Operation
4.1 Universal flow adaptor
Note: The universal flow adaptor is available as an accessory, see section 10.2
4.1.1 Connect the universal flow adaptor to the sensor and pass the gas to be analysed over the
sensor slowly at 0.5 to 1 litre per minute until the reading stabilizes. There should be no
significant rapid change in reading when the gas flow is stopped as this indicates that the
flow was too high and the sensor pressurized. If a rapid change is seen within 2 or 3 seconds
of the gas being turned off, repeat at a lower flow.
4.1.2 When a stable reading is observed with the gas flow on and 2 to 3 seconds after being turned
off, take the reading.
4.1.3 Note that after a few seconds of the gas flow being stopped the reading will begin to change
towards the level in the surrounding air of 20.9% O2 you should therefore take the reading
while flow is on.
WARNING!
Do not pressurise the sensor as inaccurate readings will result.
4.2 DII flow adaptor
4.2.1 The Analox O2Portable comes complete with the unique DII adaptor which allows to you to
directly apply the analyser to the outlet on your nitrox tank.
4.2.2 Connect the DII adaptor to the analyser by pushing the adaptor over the sensor turret. The
O ring on the sensor should ensure a comfortable fit.
4.2.3 Hold the DII adaptor firmly against the cylinder outlet facing you. Very slowly open the pillar
valve until gas can just be heard hissing through the flow adaptor.
WARNING
Open cylinder valve
EXTREMELY CAREFULLY
4.2.4 Close the pillar valve after fifteen seconds when a stable reading is observed on the O2
Portable.
4.2.5 If in doubt repeat the procedure taking care to ensure a very low gas flow.
4.2.6 Note that after a few seconds of the gas flow being stopped the reading will begin to change
towards the level in the surrounding air of 20.9% O2 you should therefore take the reading
while flow is ON.
WARNING
Do not pressurise the sensor
as inaccurate readings will result.

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5Troubleshooting
SYMPTOM
REASON
SOLUTION
Battery symbol
Low battery
Change battery
No display
Switched off
Bad connection
Switch on
Check display connection
Check battery connection
Zero reading
Sensor disconnected Sensor
expired
Check connection Change
sensor
Reading erratic
Pressure on sensor
Radio transmission
Sensor old or faulty
Condensation on sensor
Check flow
Move unit away
Change sensor
Dry sensor face
Reading does not
change when
calibration knob is
turned
Faulty connections Sensor
failure
Check connections Change
sensor
Display segments
missing
Display faulty
Return to dealer
Will not calibrate
Sensor faulty
Sensor not in air
High altitude
Change sensor
Check flow adapter
Calculate percent
equivalent =20.9%xbar
Reading drifts
Rapid temperature change
Do not move analyser from
one temperature to another
immediately before use

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6Maintenance
6.1 Battery replacement.
a) Remove the 4 screws located at each corner of the unit and carefully lift the lid.
b) Slide the battery out of its spring bracket and disconnect the lead.
c) Connect the lead to the new battery and slide the battery behind the spring bracket.
d) Replace the lid carefully and screw down taking care that the sensor locates properly.
e) Ensure that you do not trap any wires.
6.2 Sensor replacement.
a) Replacement sensor part number: 9100-9212-5AD
b) Remove the 4 screws located at each corner of the unit and carefully lift the lid.
c) Remove the flow adapter if fitted and slide the sensor out of the lid.
d) Disconnect the in line sensor connector.
e) Dispose of the old sensor according to local regulations for Lead and Potassium Hydroxide
solution.
f) Remove the new sensor from its bag and check it for leaks, connect to the inline connector
and slide through the lid.
g) Replace the lid carefully and screw down taking care that the sensor locates properly. Ensure
that you do not trap any wires.

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6.3 Care of the O2Portable
6.3.1 Although designed to be water resistant the O2Portable should not be intentionally
immersed in liquid or left outside unprotected.
6.3.2 The O2Portable is built to resist the effects of day to day shocks and drops but remember it
is a precision oxygen analyser and should be looked after carefully to give long trouble free
service.
6.3.3 To clean the O2Portable use a damp soft cloth.
6.3.4 Protect the O2Portable from long periods of direct sunlight and do not subject it to high or
low temperature extremes.
6.3.5 The sensor in the O2Portable is an electrochemical device and contains a caustic electrolyte.
Always check to make sure that it is not leaking and do not allow it onto any part of your
body or clothing. In the event that you do come into contact with the electrolyte wash the
contaminated part with copious amounts of water see Safety Information.
44 ( 0 )1642 711400
S9 5PT England
Business Park, Stokesley
Ellerbeck Court Ref.
ANALOX 9212
OXYGEN SENSOR
WARNING
If after handling the sensor
your fingers or other part of your body
feels slippery or stings
wash with a lot of water.
If stinging persists, get medical
attention!

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7Safety Information O2Portable
7.1 Battery
7.1.1 When the life of the battery has expired it should be disposed of safely in accordance with
local regulations.
7.2 Sensor
7.2.1 When the life of the sensor has expired or it is leaking or otherwise damaged it must be
disposed of safely in accordance with local regulations.
7.2.2 The sensor contains KOH Potassium Hydroxide solution which is hazardous and can have the
following effects:
Skin Potassium Hydroxide is corrosive –skin
contact could result in a chemical burn.
Ingestion Can be harmful or FATAL if swallowed.
Eye Contact can result in the permanent loss of sight.
7.2.2.1 First Aid Procedures.
Skin Wash the affected part with a lot of water
and remove contaminated clothing. If
stinging persists get medical attention.
Ingestion Drink a lot of fresh water. Do not induce
vomiting. Get medical attention.
Eye Wash with a lot of water for at least 15 minutes
and get medical help immediately.
7.3 Sensor Handling Information.
O2Portable oxygen sensors are supplied normally in sealed bags. Before the bag is opened
check that the sensor has not leaked. The sensors are themselves sealed and do not under
normal circumstances present a health hazard however if leakage of the Potassium
Hydroxide electrolyte has occurred use rubber gloves and wear chemical splash goggles to
handle and clean up. Rinse contaminated surfaces with water.

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8Warranty
We provide the following Warranties for the Analox O2Portable:
A 2 year graded sensor warranty.
A 1 year electronics warranty.
In both cases the Warranty period runs from the date of our Invoice.
We warrant that the equipment will be free from defects in workmanship and
materials.
The Warranty does not extend to and we will not be liable for defects caused by the
effects of normal wear and tear, erosion, corrosion, fire, explosion, misuse, use in
any context or application for which the equipment is not designed or
recommended, or unauthorised modification.
Following a valid Warranty claim in accordance with the above, the equipment, upon
return to us, would be repaired or replaced without cost or charge but in our
discretion we may elect instead to provide to you which ever is the lesser of the
cost of replacement or a refund of net purchase price paid as per our Invoice on
initial purchase from us. We shall have no liability for losses, damages, costs or
delays whatsoever. We shall have no liability for any incidental or consequential
losses or damages. All express or implied warranties as to satisfactory or
merchantable quality, fitness for a particular or general purpose or otherwise are
excluded and no such Warranties are made or provided, save as set out in this
Clause 7.
In order to effectively notify a Warranty claim, the claim with all relevant
information and documentation should be sent in writing to:
Analox Sensor Technology Limited
15 Ellerbeck Court
Stokesley Business Park
Stokesley
North Yorkshire
TS9 5PT
Or by e-mail to : [email protected]
Or by Fax to : [phone]
We reserve the right to require from you proof of dispatch to us of the notification
of Warranty claim by any of the above alternative means.
The equipment should not be sent to us without our prior written authority. All
shipping and Insurance costs of returned equipment are to be born by you and at
your risk. All returned items must be properly and sufficiently packed.

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9Specifications
Range 0.1 -100.0% oxygen
Typical Accuracy +/-1% of reading over range
0-50% when calibrated on air
in accordance with the manual.
+/-2% of reading over range
0-100% when calibrated on
certified pure oxygen in
accordance with the manual.
Resolution 0.1% oxygen
Response time 90% in less than 15 seconds
Sensor Type Analox 9212-5AD
Sensor Life More than 36 months in air.
24 month graded guarantee in air.
Battery 9V Alkaline (PP3)
Battery Life 4000 Hours. Up to 36 months
intermittent use.
Operating temp -5 to 50 C
Storage temp. -5 to 50 C
Pressure Sensitive to the partial pressure of oxygen.

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10 Spares & accessories
10.1 Spares
Your O2Portable unit is supplied with an Analox oxygen sensor 9212-5AD, a 9v battery, a
domed high pressure flow adaptor and 1 metre of tubing.
You are able to purchase these spares directly from us on Tel: [phone], Fax:
[phone] or you can buy them directly from our website shown below.
•9100-9212-5AD - Spare oxygen cell for the Analox O2Portable
•8000-0002A - High pressure DII adaptor
•MIO2HO - 1 metre neoprene hose
10.2 Accessories
•8000-0011A - Universal Flow Adaptor
Visit www.analoxsensortechnology.com
Nitrox page, for news and views on nitrox diving.
If you have any comments or queries about the O2Portable please contact us on Tel: [phone]
711400 or Fax: [phone]
Email: [email protected] or visit our website
www.analoxsensortechnology.com

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11 Disposal
According to WEEE regulation this electronic product cannot be placed in household waste bins.
Please check local regulations for information on the disposal of electronic products in your area.

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12 Declaration of conformity