Emerson Process Management GmbH & Co. OHG4-10
X-STREAM X2FD
Instruction Manual
HASXMDE-IM-EX
01/2015
4.3 Vapor Recovery Application - Special Information
4.3.1 Determining the converter effi ciency
• Ensure „Pump“ within the control menu is
set to On.
Note!
„Pump“ is used to disable (Off) or
enable (On) the gas fl ow through
the converter!
• Apply the calibration gas for CH2 (e. g.
C
6
H
14
). As CH1 and CH2 inside the ana-
lyzer are piped in parallel, this gas now
goes through the converter.
• When stabilized, write down the measure-
ment reading of CH1 (CH
4
channel with
converter)
• Now change „Pump“ to Off, to let the gas
bypass the converter.
• When stabilized, write down the measure-
ment reading of CH1 (CH
4
channel with-
out converter)
• Calculate the converter effi ciency:
• If the result is below 0.9 (90 %), the con-
verter material should be replaced as
described in the next section.
Part number for converter replacement ma-
terial: ETC02579
Notes!
While „Pump“ is set to Off, the NAMUR sta-
tus Function Check is actvated.
Don‘t forget to set „Pump“ to On again, after
fi nishing the calculation of converter effi cie-
ny!
Note!
The analyzer is confi gured to measure CH
4
at channel 1 (CH1), with the converter in-
stalled in front of its measurement cell.
The total content of hydorcarbons (C
n
H
m
)
within the sample gas is measured at chan-
nel 2 (CH2).
Lock menus!
Acknowledgements..
Pump: On
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