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Influencing variables
Temperature error
Air pressure
Auxiliary power supply
Drift
•
AUTOCAL cycle activated
•
AUTOCAL cycle deactivated
Accompanying gases
•
Humidity up to 20 °C dew point
•
CO
≤ 16 vol%
2
•
Exclusions
3.4.4
Electrochemical oxygen sensor
To comply with the technical data, Autocal must be activated and the cycle time must be
≤ 24 hours. Autocal must be performed with ambient or synthetic air.
General
Measuring ranges
Associated gases
Service life
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012
≤ 3% of smallest full-scale value/10 K in ambient temperature range of
5 °C ... 45 °C (34 ... 113°F)
≤ 1% of set full-scale value per 1% pressure change
≤ 0.1% of set full-scale value with a change of ±10%
Note
After longer periods of storage or transport, the device should be switched
on for 48 hours to meet the drift specification.
At an ambient temperature of 25 ±2 °C
Drift with 24 h Autocal <3% based on the smallest measuring range ac‐
cording to the nameplate
Drift <3% based on the smallest measuring range according to the name‐
plate per 24 h
Negligible
Negligible
•
Other sulfur compounds than SO
•
Halogen compounds
•
Chlorine
•
Acetone
•
Ozone
In case of doubt, please contact:
Support Request
(https://support.industry.siemens.com/My/ww/en/
requests#createRequest)
0 ... 5 vol% to 0 ... 25 vol% O
The oxygen sensor must not be used if the associated gas
contains the following components:
•
Chlorine or fluorine compounds
•
Heavy metals
•
Aerosols
•
Mercaptans
•
Alkaline components (e.g. NH
Approx. 2 years with 21 Vol. % O
3.4 Technical specifications
2
, parameterizable
2
in vol% range)
3
2
Description
37
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