Delta Faucet DF-745 Manuel D’Utilisation

38                                                                           DF-745

User Interface

Figure 23: Isolate Warning

While the moisture cell is isolated from gas flow, a warning will appear at the bottom of the 
main display indicating “Isolated”.

Figure 24: Restore Sample Gas Flow

This command allows the user to return the analyzer gas flow to normal after isolation.

“Calibration” of the moisture analyzer is somewhat of a misnomer.  Because of the nature 
of absorption measurements, instrumental drift has minimal effect on the quantitative 
moisture content result.  Once operating parameters are in place from the factory, no other 
SPAN “calibration” is necessary.

However, line contributions to offsets in ppb measurements, especially at the sub-ppb level, 
are difficult to remove even with a correctly operating system. The moisture analyzer has an 
array of zeroing features that enable the user to establish performance near 0.0 ppb.

Any zero action whether completed or aborted is recorded in the Zero Cal Log as shown 
in Figure 40. 

Use the arrow keys (

and 

 to scroll up and down through the list. Pressing ESC will 

return to the main display.