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90003749(1) [NGA-e (Software CLD 2.3/MLT 3.1.X)] 04/98
NGA 2000
6 - 31
Set up parameters:
♦ Press the ENTER key or the →→ -key in the line "Zero offset" to select the parameter and
set up "32700" resp. "524000" with the ↑↑ -key or the ↓↓ -key. You may select any digit
with the →→ -key or the ←← -key.
Note: The zero offset is about 32000 counts for the CLD software revision 2.2.1 (16 bit
D/A transformer) and about 520000 counts for the revision 2.3 (20 bit D/A transformer).
♦ Confirm your setup with the ENTER key.
♦ Go to the line "Span factor" with the ↓↓ -key.
♦ Press the ENTER key or the →→ -key to select the parameter and set up "0.00015" with
the arrow keys.
♦ Confirm your setup with the ENTER key.
Notes:
♦ You have to set up the factors for all ranges.
♦ With the parameter "Zero offset" you will fix the zero value. The changing of the zero
offset will influence the signal immediately (look at the headline).
♦ With the parameter "Span factor" you will fix the signal at the span gas setpoint. The
changing of the span factor will influence the signal immediately (look at the headline).
♦ Conditions for the manual input of factors:
• "Disabled" has to be set up in the line "Calibration adjustment limits" of the menu
"Zero/span calibration". Look at page 5-5 of chapter 5.1.1.
• "SEPARATELY" has to be set up in the lines "Zero ranges" and "Span ranges" of the
menu "Calibration Parameters" (see 5.1.2, p. 5-9).
♦ Attention:
After the calibration with factors you have to calibrate with zero gas and span gas in the
usual way!
Saving the factors:
♦ You can store the actual zero offset and span factor with the F2 key (STORE) of the
menu "Range 1/2/3/4 Factors". You will find the stored settings on the second menu
page (see illustration on the next page).
♦ You can change to the second menu page of the menu "Range 1/2/3/4 Factors" with
the F4 key (HISTORY):