Siemens ULTRAMAT 23 Manual page 36

Description
3.4 Technical specifications
Influencing variables
Drift
With AUTOCAL
•
Without AUTOCAL
•
Temperature
Air pressure
Power supply
Line frequency
Deviations with measuring range 0 ... 200 mg/m
(analyzer versions 7MB2335-xNBxx-xAAx, 7MB2337-xNBxx, 7MB2337-xxxxx-xNBx, 7MB2338-xxxxx-xNBx)
Availability
AUTOCAL cycle time
Temperature variations
Other
Deviations with measuring range 0 ... 100 mg/m
(analyzer versions 7MB2335-xNTxx-xAAx, 7MB2337-xNTxx-xxxx, 7MB2337-xxxxx-xNTx, 7MB2338-xxxxx-xNTx)
Delayed display (T time)
90
Output signal resolution
Linearity error
Drift
With constant ambient conditions
•
After temperature jump
•
Temperature influence
Influence of auxiliary power
Influence of line frequency
Cross-sensitivities
Availability
AUTOCAL cycle time
Temperature variations
Other
36
Negligible
< 2 % of smallest measuring range/week
max. 2 % of smallest possible measuring range according to label per
10 K with an AUTOCAL cycle time of 6 h
&lt; 0.2 % of measuring range per 1 % change in pressure
&lt; 0.1 % of output signal span with a variation of ±10 %
± 2 % of full-scale value with a frequency variation
of ± 5 %
SO
3
2
Max. 95 %
Max. 6 h
Max. 1 °C (1.8 °F)
The device must not be operated in an area subject to drafts. This is
especially valid for the rear panel with large cooling element.
This measuring range has not been suitability-tested.
SO
3
2
Depending on the external gas conditioning.
Note: SO is highly soluble in water
2
≤ 0.1 mg/m
3
≤ 2 mg/m³ (2% of smallest measuring range)
≤ 0.33 mg/m³ per hour after a running-in period of 200 hours
Not defined
≤ 8 mg/m³ per 10 K deviation; additional drift after temperature jump
≤ 0.4 mg/m³ with a change of ± 10%
≤ 8 mg/m³ with a change of ± 5%
Refer to following table
Max. 95 %
Max. 3 h
Max. 1 °C (1.8 °F)
The device must be operated at a constant ambient temperature. The
device must not be operated in an area subject to drafts. This is especial-
ly valid for the rear panel with large cooling element.
This measuring range has not been suitability-tested.
ULTRAMAT 23
Manual, 3/2016, A5E37100388-003