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Emerson Process Management GmbH & Co. OHG7-40
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
7.4 Calibration Procedures
7.4.8 Cancelling an Ongoing Calibration
Changing the APPLY GAS parameter opens
the related valve.
Available options:
SpanGas, ZeroGas, Sample, None.
The "Time" line shows the countdown for the
pre-purge or post-purge time (when applying
sample gas). When set properly and arrived
at "0", the measuring cell is lled with the
selected gas and the measuring value (here:
CO2; rst channel) should show the expected
concentration.
Apply gas: ZeroGas
CO2.1 4.000 ppm
Time 2s
To cancel an ongoing calibration procedure
press the LEFT key to bring up the screen
where the calibration was started and enter
the CANCEL CALIBRATION! line.
Cancelling an ongoing calibration is feasible
at any time with the following consequences:
During manual calibration:
Because there are no pre- and postpurge
times, cancelling is feasible only during the
calibration calculation process. Doing so will
reset the calibration data to the data valid
before the currently cancelled calibration was
started.
During autocalibration:
Cancelling while prepurging or during cali-
bration itself: The status changes showing
sample gas to ow and the countdown starts
with the postpurge time. Calibration data is
reset to the data valid before the currently
cancelled calibration was started.
Cancelling during postpurge does not inu-
ence the procedure because the new data
has already been calculated and stored, and
the (post-)purge time cannot be shortened
(except by changing the related setup menu
parameter).
CANCEL calibration!
START calibration!
ZeroGas 0.000 ppm
CO2.1 0.200 ppm