Divesoft DNA 8460 User manual
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
2/18
Dear user, thank you for purchasing Divesoft Nitrox Analyzer.
We wish you many safe NITROX dives.
DISCLAIMER
WARNING This analyzer is designed for measuring the content
of oxygen in air or NITROX. It cannot be used to analyze
mixtures containing other gases than oxygen - nitrogen
mixtures. For diving breathing mixtures containing helium use
one of DIVESOFT’s trimix analyzers.
ATTENTION: THE DEVICE IS NOT WATERPROOF. DO NOT EXPOSE
THE ANALYZER TO WATER.
The physical and chemical principles of the sensors used do
not guarantee that the sensors will be selectively sensitive to a
specific gas (oxygen, helium); there are a number of gases to
which the sensors respond. Therefore, the gas composition
shown by the analyzer does not mean by itself that the real
composition of the mix is equal to the displayed values. The
displayed mix composition is invalid unless the mixing
technology ensures that there are no other gases present in
the mix except air/nitrogen, pure oxygen and pure helium.
The analyzer is not a certified measuring instrument. The
results of measuring are only informative and it is not possible
to use such results where a certified measuring instrument is
required.
When analyzing mixes in situations where the incorrect
composition of the mixes could cause material damage, injury
to health or threaten human health or life, for example in the
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
3/18
case of breathing mixes for diving, the results of the analysis
may not be used as confirmation of the correct mix
composition. In these cases, the analyzer can only be used as
an aid for increasing the probability that such incorrect mix
composition will be detected before its use. The correctness of
the mix composition must be established by the technology
used to prepare it.
The correct preparation of breathing mixes for diving (NITROX
included) requires special knowledge and experience which is
possible to gain, for example, through an appropriate course. A
failure to apply such knowledge can lead to an incorrect mix,
even though the results of the analysis are seemingly correct.
Such a situation can also be the result of a failure to take into
account the influence of temperature and compressibility, an
insufficient blending of the mix and other factors.
Please remember that the analyzer can be broken or damaged
and that the oxygen sensor is by its nature subject to ageing
and thus its properties deteriorate.
Therefore always verify the measured data in another way, such
as by precise preparation of the mix, another analytical
method, etc. In addition, the measured value must be subject
to critical assessment using a common-sense approach and if
it differs from the allowable variation of mixing accuracy, it
must be considered invalid.
Content
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
4/18
DISCLAIMER
1. TECHNICAL DATA
2. USE
2.1 Pairing
2.2 Calibration
2.3 Analyzing
3. MAINTENANCE
3.1 Battery Replacement
3.2 Changing the sensor
3.3 Firmware update
3.4 Used sensors and batteries
1. TECHNICAL DATA
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
5/18
Dimensions: 45,6 × 111 x 40 mm
Weight: 100 g
Weight with DIVESOFT sensor: 126 g
Battery used: CR 2450
Compatible oxygen sensors: R22S, R22D
Measuring range: Total measuring range is up to 300mV, uses
two subranges (up to 150mV and up to 300mV). The switching
is automatic. The polarity of the sensor must be observed.
Accuracy: Oxygen analysis from 1-100% with accuracy of
+/-1%.
2. USE
2.1 Before first use
For battery saving reasons before purchasing the product, the
battery is separate from the analyzer. Before first use, install
the included battery according to section 3.1 Battery
Replacement
2.2 App Download
To use the analyzer, you must download the Divesoft.App. This
app is available for both Android and iOs phone operating
systems. These versions are available here, or directly in the
app stores:
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
6/18
NOTE: Analyzer feature works in app version 1.7.0 or higher.
2.3 Pairing
1. Launch the app on your mobile phone.
2. Select the ANALYZER tile on the home screen.
3. The app will give you available analyzers nearby. The serial
numbers of the DNA analyzers are displayed. The serial number
can be found on the body of the analyzer under the ring.
4. The app will show you a measurement screen with the
uncalibrated sensor and the sensor voltage value.
Note - the next time you run the app, if the paired DNA analyzer
is in range, the app will display the analyzer measurement
directly.
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
7/18
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
8/18
2.4 Calibration
Calibration is required before each new use of the analyzer.
Calibration can be to ambient air or to oxygen.
In the case of calibration to air, it must be ensured that the gas
in contact with the sensor is guaranteed to be air. If there is a
risk that the sensor has been purged with a gas other than air,
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
9/18
draw air from the inlet hole of the analyzer for about 10
seconds.
If calibrating on oxygen, a guaranteed source of pure oxygen is
required. For oxygen calibration, we recommend the use of a
professional DIVESOFT flow limiter with tubing for accurate
and efficient calibration.
1. Select the calibration option using the button at the bottom of
the app screen.
11/24/23, 1:33 PM
#8460 DNA User Manual
https://www.divesoft.com/en/manuals/8460-dna-user-manual?_ga=2.264787596.209083188.1700850446-662384236.1700850430
10/18
2. Select the calibration method AIR or OXYGEN.
3. Allow the calibration gas to flow into the analyzer and wait for
the sensor voltage to stabilize.
4. Press CONFIRM.
NOTE: Ensure that the sensor voltage value is within the sensor
manufacturer's parameters when exposed to the gas. DIVESOFT
oxygen sensors have an air voltage range of 7 - 13 mV. It is
advisable to verify that the sensor shows linear measurement
Table of contents
Other Divesoft Measuring Instrument manuals
