Technical Data and Sensor Accuracy
7 Technical Data and Sensor Accuracy
7.1
Technical Data
For technical data, please refer to the provided data sheets.
7.2
Accuracy, Service Life and Calibration of the Sensors
A warranty of 12 months including the electro-chemical sensors can only be guaranteed under
the accurate adherence of the surrounding conditions. Although all electrochemical sensors are
equipped with a software overload safety stop, damages due to concentrations (hydrogen sulphide
and hydrogen) that exceed the upper measuring range value over a longer time-span cannot be ruled
out. So please take this into account when choosing the sensor. If concentrations are too high, we
cannot give any warranty, as this might result in an excessive wear of the sensors. The life-span warranty
applies to a minimal measuring interval of 30 minutes for a measurement at one measuring point, which
means a maximum of 48 measurements per day. In case of several measuring points, the number of
measurements is reduced accordingly. Through the use of an air adjustment (calibration with fresh
air), the zero points of the sensors can be aligned. In this case the oxygen sensor is adjusted to 21% in
ambient air. An overview of the factors affecting the measurement accuracy can be found in
From these figures it is possible to calculate the measurement uncertainties based on the uncertainty of
the calibration gases, the calibration intervals, and the ambient temperature.
If you're interested in receiving more comprehensive material on measurement uncertainty or on terms
from IEC Standard 61207, we will be happy to provide them.
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