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Emerson Process Management GmbH & Co. OHG7-16
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
7.4.1 Preparing Calibrations
Calibration gases...
Tol.Check: Off
Hold on cal: On
Purge time: 15 s
Last but not least valve supported calibra-
tion procedures require a purge time to be
specied:
When gas ow is controlled by internal or
external valves, these allow the appropriate
calibration gas to ow into the unit as soon
as the calibration procedure is started. Due
to the limited gas ow and the distance bet-
ween valves and measuring cell, some time
is required before the measuring cell is lled
with the calibration gas: this is the purge time,
which is to be entered here. If the calibration
is started earlier, the gas lines will still contain
other components and the calibration will be
inaccurate.
The operator has to enter this purge time for
his specic system into the related line in this
menu.
Note!
Regardless of how many valves are installed,
only one single purge time can be specied!
Enter the longest time applicable to any of the
installed valves!
7.4.1.1.4 Purge Time Setup
Setup..
Calibration..