Emerson NGA2000 Manuale Utente

90003749(1) [NGA-e (Software CLD 2.3/MLT 3.1.X)] 04/98

NGA 2000

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):