EL3000
CONTINUOUS GAS ANALYZERS | OI/EL3000-EN REV. D
35
Test gases
Test Gases for Zero Calibration
Quality
Nitrogen, Quality 5.0, synthetic air or catalytically
cleaned air with an organic C < 1 % MBU
Inlet pressure p
e
1000 hPa, ±100 hPa
Flow rate
130 to 250 l/h
Test gases for endpoint 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 hPa, ±100 hPa
Flow rate
130 to 250 l/h
Zero point offset
If the zero point gas is not completely free of hydrocarbons
(even purified nitrogen contains fractions of hydrocarbons),
negative measured values may be displayed in small measuring
ranges.
In this case, the sample gas contains a lower proportion of
hydrocarbons than the zero point gas.
Note
The calibration information under
on page 136 must be taken into account.
Gas connections
See sections
Gas connections and electrical connections
electrical connections Fidas24 (model EL3040)
Sample gas input and output conditions
Analyzers
Analyzer
Additional Information
Uras26
See page 19
Limas23
See page 21
Magnos206
See page 23
Magnos28
See page 27
Magnos27
See page 25
ZO23
See page 28
Caldos27
See page 31
Fidas24
See page 33
Oxygen sensor
Flammable gases
The oxygen sensor may not be used for the measurement of
flammable gases.
Additional conditions
The H
2
O dew point of the sample gas must be at least 2 °C.
The oxygen sensor may not be used if the sample gas contains
the following components:
H
2
S, compounds containing chlorine or fluorine, heavy
metals, aerosols, mercaptans, alkaline components.
Integrated gas feed
Flammable gases
If the gas analyzer is equipped with the integrated gas feed, it
must not be used for the measurement of flammable gases.
Note
Integrated gas feed can be used as an option in the EL3020
model. It cannot be used in the EL3040 model and not together
with the Limas23, ZO23 and Fidas24 analyzers.
