AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B 353
Magnos27: Operating specifications
Linearity deviation ≤ 2 % of span
Repeatability ≤ 1 % of span
Zero drift ≤ 1 % of span per week
Sensitivity drift ≤ 2 % of the measured value per week
Output fluctuation (2
σ)
≤ 0.5 % of smallest measurement at electronic T90 time = 0 s
Detection limit (4
σ)
≤ 1 % of smallest measurement at electronic T90 time = 0 s
Flow influence ≤ 1 % of span at a flow change of ±10 l/h. At the same sample and test gas
flow rate, the flow influence is automatically compensated.
Associated gas effect Magnos27 calibration applies only to the sample gas (= sample component +
associated gas) shown on the identification plate.
Temperature influence At zero point: ≤ 2 % of span per 10 °C;
On sensitivity: ≤ 0.5 % of measured value per 10 °C;
each with respect to the temperature during calibration.
Thermostat temperature = 63 °C; Ambient temperature in permissible range
Air pressure effect At zero point: < 0.05 vol.% of O
2
per 1 % air pressure change;
On sensitivity without pressure correction: ≤ 1.5 % of the measured value per
1 % air pressure change;
On sensitivity with pressure correction (option): ≤ 0.25 % of the measured
value per 1 % air pressure change.
Option: Operating altitude over 2000 m
Power supply influence 24 V DC ± 5 %: ≤ 0,2 % of span
Position influence Approx. 3 % of smallest measurement range span per 1° deviation from hor-
izontal orientation. Position has no effect on the hard-mounted unit.
T
90
time T
90
= 10 to 22 s, depending on sample gas flow and sample chamber connec-
tion (applies to a gas analyzer with one analyzer module)
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