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NGA 2000
90003749(1) [NGA-e (Software CLD 2.3/MLT 3.1.X)] 04/98
Lines of variables "Reference duty cycle" and "Duty cycle coefficient":
These parameters will be set up during the first startup of the CLD analyzer module by the
manufacturer. Do not alter them !
Menu line "Calibration factors..."
Via the menu line "Calibration factors..." you can change to the corresponding submenu:
In the menu "Calibration Factors" you can select the range you want to calibrate with
manual factors in the line "Measurement range number". This may be necessary if a
calibration was not successful, e.g. because of a trouble in the gas flow. It is possible that
a new start of calibration will not solve the problem, if the measured zero or span gas
value will differ from normal signals largely.
You can also reach the menu "Calibration Factors" via the menu "Zero/Span calibration"
of the Expert controls and set up menus (look at chapter 5.1.1 p. 5-6).
You have to set up the factors for each range separately in the menus "Range 1/2/3/4
Factors". You will reach each menu via the corresponding line:
HOME ESCAPE INFO
CLD
F1 F2 F3 F4 F5
95.0 ppm
Calibration Factors
Only those factors appropriate for the current range
Make sure you are using the right ones!
Measurement range number: 3
Range 1 factors...
Range 2 factors...
Range 4 factors...
will affect the reading on the current range.
Range 3 factors...
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CLD
F1 F2 F3 F4 F5
95.0 ppm
Range 3 Factors
Zero offset: 521580.6
Full scale range at calibration: 100.0 ppm
Measurement range number: 3
Raw measurement signal: 521660
Span factor: 0.002608716