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4.2.2 Calibration - Spanning
90003749(1) [NGA-e (Software CLD 2.3/MLT 3.1.X)] 04/98
NGA 2000
4 - 27
MEASURE STATUS NEXT LOCK INFO
CLD
F1 F2 F3 F4 F5
225.0 ppm
Main Menu
Basic controls...
Expert controls and set up...
Technical level configuration...
(Operational configuration)
(Diagnostic and manufacturing/service)
DISPLAY STATUS MENU NEXT INFO
CLD
Sample press.:
Detector temperature:
Block temperature:
Converter temp.:
51.5 C
0.5 C
340 hPa
360 C
F1 F2 F3 F4 F5
225.00 ppm NOx
Range: 4
0 250
⇒ ⇒ Change to the single
component display
Press
F1
⇒ ⇒ Single component
display will appear
after the span gas
calibration
⇒ ⇒ Notes for the span gas calibration:
• You can calibrate all ranges together or each range separately with span gas. You have to set up
the parameter you want in the menu "Calibration Parameters" (see chapter 5.1.2 p. 5-9).
• If it will not be possible to calibrate all ranges with the same span gas, you have to calibrate each
range separately!
• The desired value of span gas has to be (!) a value between 10% and 110% of each end of range.
Otherwise, no calibration will be running.
Example:
• End of range 1: 50 ppm → Potential span gas setpoints: 5 – 55 ppm
• End of range 2: 250 ppm → Potential span gas setpoints: 25 – 275 ppm
• End of range 3: 1000 ppm → Potential span gas setpoints: 100 – 1100 ppm
• End of range 4: 2500 ppm → Potential span gas setpoints: 250 – 2750 ppm