Siemens ULTRAMAT 23 - Page 40

Description
3.4 Technical specifications
ULTRAMAT 23
40 Manual, 3/2016, A5E37100388-003
Climatic conditions
Permissible ambient temperature
• During operation
• During transportation and storage
+5 ... +45 °C (41 ... 113 °F)
-20 ... +60 °C (-4 ... 140 °F)
Permissible ambient humidity
< 90% RH (relative humidity) during transportation and storage
Permissible ambient pressure
600 ... 1200 hPa absolute
Maximum operating altitude
2000 m above sea level
Influencing variables
Cross-inferences (interfering gases)
See table of cross-sensitivities
Zero drift (vol % O
2
) Measuring range 2%: max. 0.1% with weekly zero adjustment
Measuring range 5%: max. 0.1% with weekly zero adjustment
Measuring range 25% or greater: max. 0.5% with monthly zero adjust-
ment
Temperature error (vol % O
2
) <2% /10 K referred to measuring range 5%
<5% /10 K referred to measuring range 2%
Humidity error (vol % O
2
)
for N
2
with 90% relative humidity after 30 min
<0.6% at 50 °C (122 °F)
Air pressure
< 0.2% of measured value per 1% pressure change
Cross-sensitivities
All values in this table refer to a zero calibration with nitrogen and a full-scale calibration with 100 vol. % oxygen. The devi-
ations apply to 100 vol. % of the associated gas, and must be considered proportionally for the zero calibration.
Gas
Formula
Deviation at 20 °C
Deviation at 50 °C
Acetyl aldehyde
C
2
H
4
O
- 0.31
- 0.34
Acetone
C
3
H
6
O
- 0.63
- 0.69
Acetylene, ethine
C
2
H
2
- 0.26
- 0.28
Ammonia
NH
3
- 0.17
- 0.19
Argon
Ar
- 0.23
- 0.25
Benzene
C
6
H
6
- 1.24
- 1.34
Bromine
Br
2
- 1.78
- 1.97
Butadiene
C
4
H
6
- 0.85
- 0.93
n-butane
C
4
H
10
- 1.10
- 1.22
Iso-butylene
C
4
H
8
- 0.94
- 1.06
Chlorine Cl
2
- 0.83 - 0.91
Diacetylene C
4
H
2
- 1.09 - 1.20
Dinitrogen monoxide
N
2
O
- 0.20
- 0.22
Ethane
C
2
H
6
- 0.43
- 0.47
Ethyl benzene
C
8
H
10
- 1.89
- 2.08
Ethylene, ethene
C
2
H
4
- 0.20
- 0.22
Ethylene glycol
C
2
H
6
O
2
- 0.78
- 0.88
Ethylene oxide
C
2
H
4
O
- 0.54
- 0.60