Table of Contents
Advertisement
Description
3.4 Technical specifications
Time response
Response time (T
time)
90
Measuring behavior at analog output
Output signal noise
Display resolution
Output signal resolution
Repeatability
Influencing variables
Oxygen content
Typical combustion exhaust gases
Humidity
Drift
•
AUTOCAL cycle activated
•
AUTOCAL cycle deactivated
Temperature
Air pressure
3.4.5
Paramagnetic 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 information
Measuring ranges
38
Dependent on dead time, IR and UV measured components, measuring
ranges and configurable damping,
<30 s at approximately 1.2 l/min sample gas flow
< 0.5 vol% of the full-scale value
< 0.2 vol% of the full-scale value
< 0.2 vol% of the output signal span
≤0.05 vol% O
2
In the case of occasional operation < 1 vol% O
below 1 vol% O
is limited.
2
An improvement in the measuring accuracy at concentrations <1 vol% O
possible under the following conditions:
•
Permanent measurement of concentrations <1 vol%
•
No mixed operation with occasionally high concentrations and occa‐
sionally low concentrations (brief high concentrations e.g. by means of
an AUTOCAL with air at intervals of at least 3 hours are permissible)
Influence: ≤0.05 vol% O
2
H
O dew point ≥ 2 °C (36 °F); the oxygen sensor must not be used with dry
2
sample gases (no condensation)
At an ambient temperature of 25 ±2 °C
Negligible
1 vol% O
/year in air, typical
2
<0.5 vol% O
per 20 K, relating to a measured value at 20 °C (68 °F)
2
< 0.2 vol% of measured value per 1% pressure change
Quantity 2,
Min. 0 ... 2 vol% O
(limited accuracy)
2
Max. 0 ... 100 vol% O
2
, the measuring accuracy
2
Equipment Manual, 04/2022, A5E37100388-012
is
2
ULTRAMAT 23
Advertisement
Table of Contents
