X-STREAM
Emerson Process Management GmbH & Co. OHG7-28
Instruction Manual
HASAxE-IM-HS
05/2006
7-3-4 Auto Calibration
7-3-4-4 Unattended Auto Calibration
Before selecting any further line
make sure the required calibra-
tion gases are applied!
Supply all calibration gases with
the same flow as the sample gas
(recommeded approx. 1 l/min),
pressureless and utilizing the
right gas fittings (see sect. 3-4).
Make sure the calibration purge
time is set to a value ensuring the
measuring cell is filled properly
with the related calibration gas
after the valve has opened!
Ensure the warm-up time after
switching on has elapsed!
Warm-up time is 15 to 50 minutes
depending on installed measu-
ring system and configuration!
Unattended auto calibrations differ from single
auto calibrations(as described in sections
7-3-3-2 and 7-3-3-3) that way, that
1) the time, a calibration starts is defined by
an interval time,
2) starting and processing calibrations does
not need operator interaction
3) for span calibrations the analyzer consi-
ders the requirement that always a zero
calibration has to be carried out first,
4) (dual channel instruments only) there is no
selection for channel one or two. Every time
an unattended calibration is started, this
is done for both channels!
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