42/24-10 EN Rev. 9 Appendix 2: Analyzer Module Operating Specifications A-2-5
Magnos27 Operating Specifications
Linearity deviation ≤ 2 % of span
Repeatability ≤ 1 % of span
Zero drift ≤ 1 % of span per week
Sensitivity drift ≤ 2 % of measured value per week
Output fluctuation (2 σ) ≤ 0.5 % of smallest measurement range span at electronic T90 time = 0 sec.
Detection limit (4 σ) ≤ 1 % of smallest measurement range span at electronic T90 time = 0 sec.
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
influence
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
both based on temperature during calibration
Ambient temperature in permissible range, thermostat temperature = 63 °C
Air pressure influence • At zero-point: < 0.05 Vol.-% O
2
per 1 % air pressure change
• On sensitivity without pressure correction: ≤ 1.5 % of measured value per 1 % air
pressure change
• On sensitivity with pressure correction: ≤ 0.25 % of measured value per 1 % air
pressure change
Option: Operating altitude over 2000 m
Power supply
influence
24 VDC ± 5 %: ≤ 0.2 % of span
Position influence Approx. 3 % of smallest measurement range span per 1° deviation from horizontal
orientation. Position has no effect on the hard-mounted unit.
T
90
time T
90
= 10 to 22 sec., depending on sample gas flow and sample chamber
connection (applies to a gas analyzer with one analyzer module)
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