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Emerson Process Management GmbH & Co. OHG5-18
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
5.7 Checking the Settings
This prevents calibration from being perfor-
med when the incorrect gas is supplied (e.g.
span gas calibration using zero gas), which
would result in an incorrectly configured
unit.
"Hold on Cal": Species behaviour of analog
outputs and concentration limits alarms during
calibrations (follow measured value or not)..
Note!
This parameter may also be set in the menu
SETUP - IN-/OUTPUTS - ANALOG OUTPUTS.
For more information page 5-20.
“Purge time”: 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 between 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.
"Valve assignment": This line is to assign
internal and/or external valves the function
of either zero or span gas valve. Instruments
with internal valves are already factory se-
tup.
If any of these parameters need to be
changed,
section 7.3 at page 7-3 for
more information.
Note!
The line “Purge time” and the second menu
page are only displayed if the “Valves” para-
meter in the INSTALLED OPTIONS menu is
not set to none.
Calibration gases..
Tol.Check: Aus
Hold on Cal: Yes
Purge time: 12 s
Page 1
Valve assignment..
Interval time..
Page 2