Servomex SERVOTOUGH LaserExact 2950, Operator'S Manual

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SERVOTOUGH LaserExact Monitor, Operator Manual 02950001A_1
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The constant used to calculate the line width, which in turn is used to calculate the
gas concentration. The line width constant can be modified together with the
calibration constant after calibration (see Section 4.3.7). The value cannot be
modified manually in this menu if the program runs in User mode.
Line width measurement
This parameter switches the line width measurement function ON and OFF. If
switched OFF the theoretical line width for the given gas pressure and
temperature is used. If switched ON the line width is measured from the shape of
the second harmonic absorption line. The value cannot be modified manually in
this menu if the program runs in User mode.
4.3.7 Calibrate instrument
Calibration of all gases and the spectral temperature (if applicable) is carried out in
this menu. The example below is for an instrument measuring two gases.
There are two available calibration modes: "PROPORTIONAL" and "GLOBAL",
which can be toggled. The default calibration mode is
PROPORTIONAL . In this
mode the instrument performs proportional adjustment of the calibration constant
based on the measured and supplied concentrations. There are no special