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ATA Pro 
Technical Manual 

 

Int. Approved   

 

Document ref: HEL-810-12 

December 2017 

Page 18 of 27 

 

Copyright © 2017 Analox Ltd. All Rights Reserved. 

 

Commercial in Confidence  

 

9.

 

Oxygen Compensation Chart

 

 

 

Oxygen compensation chart for moisture in the atmosphere 

 

Atmosphere Oxygen percent in relation to temperature and relative humidity 

Temp °F 

32 

40 

50 

60 

70 

80 

90 

100 

110 

120 

Temp °C 

10 

16 

21 

27 

32 

38 

43 

49 

% Relative 

Humidity 

Atmospheric Oxygen Percent 

10 

20.9 

20.9 

20.9 

20.9 

20.8 

20.8 

20.8 

20.8 

20.7 

20.7 

20 

20.9 

20.9 

20.8 

20.8 

20.8 

20.8 

20.7 

20.6 

20.5 

20.4 

30 

20.9 

20.8 

20.8 

20.8 

20.7 

20.7 

20.6 

20.5 

20.4 

20.2 

40 

20.8 

20.8 

20.8 

20.7 

20.7 

20.6 

20.5 

20.4 

20.2 

19.9 

50 

20.8 

20.8 

20.8 

20.7 

20.6 

20.5 

20.4 

20.2 

20.0 

19.7 

60 

20.8 

20.8 

20.7 

20.7 

20.6 

20.5 

20.3 

20.1 

19.8 

19.5 

70 

20.8 

20.8 

20.7 

20.6 

20.5 

20.4 

20.2 

19.9 

19.6 

19.2 

80 

20.8 

20.8 

20.7 

20.6 

20.5 

20.3 

20.1 

19.8 

19.5 

19.0 

90 

20.8 

20.7 

20.7 

20.6 

20.4 

20.3 

20.0 

19.7 

19.3 

18.7 

100 

20.8 

20.7 

20.6 

20.5 

20.4 

20.2 

19.9 

19.5 

19.1 

18.5 

H

2

0 at 100% 

RH 

If the temperature and RH axis meet in this part of the chart, calibrate to the chart % O

2

 

level or with dry air to maintain 0.5% O

2

 accuracy in NITROX 

0.6 

0.8 

1.2 

1.8 

2.5 

3.4 

4.7 

6.5 

8.6 

11.5 

 

Copyright © 1996-2009: Analox Group, 15 Ellerbeck Court, Stokesley Business 

Park, North Yorkshire, TS9 5PT UK.

 All Worldwide Rights Reserved.

 

Summary of Contents for ATA Pro

Page 1: ...esley Business Park North Yorkshire TS9 5PT UK UK RoW T 44 0 1642 711400 F 44 0 1642 713900 US T 714 891 4478 W www analox net E info analox net Copyright 2017 Analox Ltd All Rights Reserved ATA Pro Technical Manual Commercial in Confidence ...

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Page 3: ... Date 07 12 2017 12 PJO 2017 0103 Declaration of Conformity Updated LG 07 12 2017 03 05 2017 11 PJO 2017 0051 Update dimensions in specification general tidy up of page breaks margins etc DG 16 05 2017 27 10 2016 10 DG 2016 0081 Update Ata Pro user manual for He sensor life PJO 02 11 2016 13 01 2014 09 PJO 2013 0047 Updated to suit ATA pro DIN restrictor added as kit 29 09 2011 08 PJO 2011 0122 Fl...

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Page 5: ... Document ref HEL 810 12 December 2017 Page 1 of 27 Copyright 2017 Analox Ltd All Rights Reserved Commercial in Confidence We are delighted to welcome you as a user of the ATA pro The following guide should assist you in using your ATA pro ...

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Page 7: ...Calibration 5 3 3 Helium Sensor Zero Adjust 7 3 4 Analysing Your Mix 7 3 5 Accessories 9 4 Quick Check 10 5 After Sales Service 11 5 1 Battery Replacement 11 5 2 Sensor Replacement 12 5 3 Warranties 13 5 4 General Care 13 5 5 Safety Information 14 5 6 First Aid Procedures 14 5 7 Sensor Handling Information 14 6 Warranty Information 15 7 Specification 16 8 Altitude Correction Chart 17 9 Oxygen Comp...

Page 8: ... Contents Check On opening your Ax ATA pro please check you have the following items a ATA pro Battery b Flow Adaptor Tubing Sample Dome c O2 Compensation Card d User Manual e Any additional options or accessories ordered for your Ax ATA pro from Storage Case compact water proof drop proof case ideal For storing your ATA pro and accessories DIN flow restrictor Ax ATA pro Kit ...

Page 9: ...of use Oxygen calibration and Helium zero adjust features are provided as standard and Oxygen compensation is provided to ensure you get more accurate Helium readings Readings are displayed individually on a scroll through backlit display Power is provided by one AA size battery The ATA pro will automatically switch off after 15 minutes to ensure battery life is not compromised if the instrument i...

Page 10: ...lly turn off after 15 minutes to prevent accidental battery drainage Alternatively the unit can be turned off by pressing and holding the on off button for 3 seconds When the analyser is switched on it will display a reading and a marker indicating which gas is being displayed O2 He or BAL Do not use the ATA pro before calibration see section 3 2 Oxygen Sensor Calibration The on off button also tu...

Page 11: ... section 4 0 Quick Check When the Helium sensor adjustment is fully left the instrument display may show Err this is not a fault if the display returns to numbers when the adjustment is set to the mid point WARNING Do NOT use when the LOW BATTERY symbol is on 3 2 Oxygen Sensor Calibration Oxygen sensor calibration in clean air is essential before every use and is performed as follows 1 Remove the ...

Page 12: ...ge An altitude correction chart is shown for reference on page 22 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 8bar the surface equivalent oxygen percentage is 20 9 x 0 8 16 7 O2 Surface Equivalent If the reading you then obtain...

Page 13: ...ment is turned too far to the left the instrument display may show Err this is not a fault just return the adjustment to the mid point then re adjust for a reading of 0 0 3 4 Analysing Your Mix The ATA pro is provided with a flow adapter and tubing which can be connected to the gas Sampling Dome 1 Ensure the ATA pro has been calibrated as per the instructions in sections 3 2 and 3 3 2 Push the flo...

Page 14: ... the display to show the balance gas BAL i e the inferred Nitrogen concentration Take your reading and close the tank Analysing your mix 9 If in doubt repeat the procedure taking care to ensure a gas flow of between 0 2 and 1 0 l m 10 If you wish to carry out multiple cylinder checks to re zero the sensors you will need to remove the flow adaptor This will allow the previous gas mix to quickly ven...

Page 15: ...al in Confidence 3 5 Accessories The ATA pro can be supplied with any of the following accessories a Storage case compact water proof drop proof case ideal for storing your ATA pro and accessories Part number SA2ATACASE b DIN flow restrictor kit Comprising DIN flow restrictor 0 2 to 1 2 l m flow meter 1m neoprene tubing Part number 6000 0197K ...

Page 16: ...n knob to mid point before calibrating Check connection Carry out He coarse calibration Return to supplier He Reading is negative Zero Adjust required Adjust the reading using the He zero pot on the front If still negative Recalibrate using internal pots Reading erratic Pressure on sensor Radio transmission Sensor old or faulty Condensation on sensor Check flow Move unit away Change sensor Dry sen...

Page 17: ... 5 After Sales Service 5 1 Battery Replacement a In a clean dry environment open the analyser case b Remove the cover from the battery holder b Slide the battery out of its holder c Push in the new battery ensuring the polarity is correct Shown on battery holder d Refit the battery cover d Close the lid e Ensure the unit is turned off after fitting the battery ...

Page 18: ...100 4535 b In a clean dry environment open the analyser case c Disconnect the He sensor from the circuit board d Unscrew the He sensor locking ring on the front face of the analyser e Pull out the He sensor and dispose of it f Remove the new sensor from its pack check the sensor has a rubber o ring fitted at the base of the thread on the front of the sensor Push the sensor through the hole in the ...

Page 19: ...r left outside unprotected To clean the ATA pro use a damp soft cloth Protect the ATA pro from long periods of direct sunlight and do not subject it to high or low temperature extremes The O2 sensor in the Ax ATA pro 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 even...

Page 20: ...n Can be harmful or FATAL if swallowed Eye Contact can result in the permanent loss of sight 5 6 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 im...

Page 21: ... 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 ...

Page 22: ...4535 TC sensor He SENSOR LIFE up to 10 years with normal use and avoidance of mechanical shock 12 month warranty POWER Standard 1 5V AA size Alkaline Battery BATTERY LIFE 50 hours OPERATING TEMP 0 to 50 C 32 to 122 F STORAGE TEMP 5 to 50 C 23 to 122 F WEIGHT 0 4kg DIMENSIONS mm 195 l x 130 w x 62 d 7 28 x 5 12 x 2 5 Certification CE marked IP RATING IP65 If you have any comments or queries about t...

Page 23: ...0 86 174 17 39 6000 1829 0 84 168 16 75 7000 2134 0 81 161 16 13 8000 2438 0 79 155 15 53 9000 2743 0 76 149 14 94 10000 3048 0 74 144 14 38 11000 3353 0 72 138 13 83 12000 3658 0 69 133 13 3 13000 3962 0 67 128 12 78 14000 4267 0 65 123 12 28 15000 4572 0 63 118 11 8 16000 4877 0 61 113 11 33 17000 5182 0 59 109 10 88 18000 5486 0 57 104 10 44 19000 5791 0 55 100 10 02 20000 6096 0 53 96 9 61 Pre...

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Page 25: ...9 of 27 Copyright 2017 Analox Ltd All Rights Reserved Commercial in Confidence 10 Disposal According to WEEE regulation this electronic product can not be placed in household waste bins Please check local regulations for information on the disposal of electronic products in your area ...

Page 26: ...ATA Pro Technical Manual Int Approved Document ref HEL 810 12 December 2017 Page 20 of 27 Copyright 2017 Analox Ltd All Rights Reserved Commercial in Confidence 11 Declaration of Conformity ...

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