Emerson NGA2000 Manuale Utente

NGA 2000

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

↓↓

Diagnostic menus

↓↓

Analyzer module diagnostics

↓↓

Flow control parameters

↓↓

In the menu "NO/NOx flow balance" you can set up or calculate an NO

x

 to NO flow

correction factor.
Since the sample flows through different paths in the NO and NO

x

 modes of analysis,

there are differences in the flows entering the reaction chamber in the two modes. So the
CLD may produce wrong results of analysis. To compensate the different flow rate you
can set up a correction factor manually or calculate it in two different methods.

Note:

♦ 

This menu page will only be available in the software revision 2.3! The correction
function will only be valid for the CLD hardware "CLD 2" without flow balance valve!

♦ 

The NO/NO

x

 compensation of the former models will have to be done with the flow

balance valve! In that case, you will not find the menu page shown above.

Set up parameters:

♦ 

Select the line of variables or the menu line with the 

↓↓

 -key or the 

↑↑

 -key.

♦ 

Select the variable or change to the submenu with the ENTER key or the 

→

→

 -key.

♦ 

Select any digit with the 

←

←

 -key or the 

→

→

 -key and adjust a new value with

the 

↑↑

 -key or the 

↓↓

 -key.

♦ 

Confirm the new value with the ENTER key or
cancel and go back to the last value with the F2 key.

HOME

ESCAPE

INFO

CLD

95.0 ppm

NO/NOx flow balance

NOx correction factor:

1.0000

Calculate factor using pressure ratio...

Calculate factor using span gas response ratio...