AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B 347
Caldos27: Operating specifications
The stability data apply only to measurement ranges ≥ Class 2.
Linearity deviation ≤ 2 % of span
Repeatability ≤ 1 % of span
Zero drift ≤ 2 % of the smallest possible measurement range per week
Sensitivity drift ≤ 0.5 % of the smallest possible measurement range per week
Output fluctuation (2
σ)
≤ 0.5 % of smallest measurement range span at electronic T90 time = 0 s
Detection limit (4
σ)
≤ 1 % of smallest measurement range span at electronic T90 time = 0 s
Flow influence ≤ 0.5 % of span at a flow change of ±10 l/h.
At the same sample and test gas flow rate, the flow influence is automatical-
ly compensated.
Associated gas effect The knowledge of the sample gas composition is necessary for the analyzer
configuration.
Temperature influence At each point in the measurement range: ≤ 0.5 % of span per 10 °C, with re-
spect to the temperature during calibration. Thermostat temperature =
60 °C; Ambient temperature in permissible range
Air pressure effect ≤ 0.25 % of span per 10 hPa for the smallest possible ranges given; in larger
measurement ranges the influence effect is correspondingly smaller.
Working range of installed pressure sensor: p
abs
= 600 to 1250 hPa
Option: Operating altitude over 2000 m
Power supply influence 24 V DC ± 5 %: ≤ 0.2 % of span
Position influence < 1 % of span up to 30° deviation from horizontal orientation
T
90
time T
90
≤ 2 s with direct sample chamber connection and sample gas flow =
60 l/h (applies to a gas analyzer with one analyzer module)
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