Senseca ECO 410T handleiding
Handleiding
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ECO 410 / ECO 410T - O2-Analyser / oxygen meter
Measurement Basics
B-H86.0.31.DK2-2.1 Page 14 of 22
5 Measurement Basics
5.1 Oxygen principles
The sensor provides a signal which is proportional to the oxygen partial pressure (p
O2
).
5.1.1 Oxygen partial pressure and oxygen concentration
The partial pressure is the pressure of one component in a mixture of different components.
The sum of all partial pressures is the same as the total pressure of the mixture (Dalton's law).
For air, the absolute air pressure (Pabs), e.g. 1013 hPa, would be the sum of the partial
pressures of each individual component (N2, O2, Ar, ...). The oxygen concentration is the
percentage by volume of oxygen in the air mixture.
As a rule, this is 20.95 % by volume for dry air.
5.1.2 Maximum operational depth (MOD)
In order to slow down the accumulation of nitrogen in the body and thus reduce the risk of
decompression sickness, nitrogen-air mixtures with enriched oxygen concentration
(NITROX) is used in diving. However, with these mixtures, the maximum possible diving
depth is reduced (the oxygen partial pressure increases extremely at depth).
The oxygen partial pressure should be within the limits of 0.16 ... 1.40 bar.
The following calculation is performed in the device based on the measurement and the user
inputs of oxygen partial pressure (pO2) and the absolute air pressure (Pabs):
Caution! Incorrect measurement possible!
The device shou3ld display about 20.9 % in ambient air.
If this is not the case, it can be corrected as follows:
If the air pressure has changed since the last calibration:
Set parameter PAbS to the current air pressure.
If this does not result in a display of about 20.9 %:
Perform adjustment on ambient air.
The air pressure entered in the PAbS parameter is always used to calculate the oxygen
concentration. If the air pressure changes after calibration, incorrect measured values will
result.
In the ECO 410T version, this also affects the calculation of the MOD display.
Bekijk gratis de handleiding van Senseca ECO 410T, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Senseca |
| Model | ECO 410T |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 2524 MB |
