A-2-2 Appendix 2: Analyzer Module Operating Specifications 42/24-10 EN Rev. 9
Caldos27 Operating Specifications
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 sec
Detection limit (4 σ) ≤ 1 % of smallest measurement range span at electronic T90 time = 0 sec
The stability data apply only to measurement ranges ≥ Class 2.
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 automatically compensated.
Associated gas
influence
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, based on temperature during calibration;
Ambient temperature in permissible range, thermostat temperature = 60 °C
Air pressure influence ≤ 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 VDC ± 5 %: ≤ 0.2 % of span
Position influence < 1 % of span up to 30° deviation from horizontal orientation
T
90
time T
90
≤ 2 sec. 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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