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Measuring behavior at analog output
Response time (T
time)
90
Output signal noise
Repeatability
Influencing variables
Interference gases
Zero point drift
End point drift
Temperature error
Humidity error
for N
with 90% relative humidity after 30 min
2
Air pressure
Cross-sensitivities
All values in this table refer to a zero calibration with nitrogen and a full-scale calibration with 100 vol% oxygen. The
deviations apply to 100 vol% of the relevant gas and must be considered proportionally for the zero adjustment.
Gas
Acetyl aldehyde
Acetone
Acetylene, ethine
Ammonia
Argon
Benzene
Bromine
Butadiene
n-butane
Iso-butylene
Chlorine
Diacetylene
Dinitrogen monoxide
Ethane
Ethyl benzene
Ethylene, ethene
Ethylene glycol
Ethylene oxide
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012
<60 s
< 1% of smallest measuring range
≤ 1% of smallest measuring range
See table of cross-sensitivities
Measuring range 2 vol%: max. 0.1 vol% with weekly zero-point calibration
(with nitrogen)
Measuring range 5 vol%: max. 0.1 vol% with weekly zero-point calibration
(with nitrogen)
Measuring range 25 vol% or greater: max. 0.5 vol% with monthly zero point
calibration (with nitrogen)
negligible
< 2%/10K based on the measuring range ≥ 5 vol%
< 5%/10K based on the measuring range 2 vol% minimum 0.1 vol%/10K
< 0.6 vol% at 50 °C (122 °F)
< 0.2 vol% of measured value per 1% pressure change
Formula
Deviation at 20 °C
C
H
O
- 0.31
2
4
C
H
O
- 0.63
3
6
C
H
- 0.26
2
2
NH
- 0.17
3
Ar
- 0.23
C
H
- 1.24
6
6
Br
- 1.78
2
C
H
- 0.85
4
6
C
H
- 1.10
4
10
C
H
- 0.94
4
8
Cl
- 0.83
2
C
H
- 1.09
4
2
N
O
- 0.20
2
C
H
- 0.43
2
6
C
H
- 1.89
8
10
C
H
- 0.20
2
4
C
H
O
- 0.78
2
6
2
C
H
O
- 0.54
2
4
Description
3.4 Technical specifications
Deviation at 50 °C
- 0.34
- 0.69
- 0.28
- 0.19
- 0.25
- 1.34
- 1.97
- 0.93
- 1.22
- 1.06
- 0.91
- 1.20
- 0.22
- 0.47
- 2.08
- 0.22
- 0.88
- 0.60
39
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