ABB EasyLine Series Instructions For Installation Start-Up And Operation page 31

Test Gases
Gas Connections
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 = 1000 ± 100 hPa
e
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 = 1000 ± 100 hPa
e
Flow 130 to 250 l/h
NOTE
The Notes for Calibration must be considered.
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)"
Preparation for Installation 31