Preparation for Installation
31
Test Gases
Zero-point Calibration
Quality
Nitrogen, Quality 5.0, synthetic air or catalytically
cleaned air with an organic C content < 1 % of span
Inlet pressure
p
e
= 1000 ± 100 hPa
Flow
130 to 250 l/h
End-point Calibration
Quality
Sample component or substitute gas component in
nitrogen or synthetic air with concentration adjusted to
the measuring range
Inlet pressure
p
e
= 1000 ± 100 hPa
Flow
130 to 250 l/h
NOTE
The Notes for Calibration must be considered.
Gas Connections
See the sections "Gas and Electrical Connections for Fidas24 (Model
EL3020) (see page 66)" and "Gas and Electrical Connections for Fidas24
(Model EL3040) (see page 67)"
