Emerson I-0021 Manuel D’Utilisation

Page de 238
5 - 54
NGA 2000
90003482(2) [NGA-e (MLT-Software 3.2.X)] 07/98
Main Menu — Analyzer and I/O-module expert configuration
↓↓
Analyzer module setup
↓↓
Concentration measurement parameters
↓↓
In the menu "General Concentration Measurement Setup" you can set up for the current
channel of an MLT analyzer or analyzer module the following parameters:
♦ 
the sample gas unit
Options: ppb, ppm, %, µg/Nm
3
, mg/Nm
3
, g/Nm
3
, %LEL, %UEL
♦ 
the "ppm 
 mg/Nm
3
" conversion factor
Options: 0 to 1000000
Note: The "ppm" 
 "mg/Nm
3
" conversion factor depends on the sample gas which is
used. The set-up is necessary if you want to display sample gas values in "mg/Nm
3
" !
♦ 
the lower explosion limit (LEL) and the upper explosion limit (UEL)
Options: 0 to 100%
♦ 
the measurement output during failure
Options: Actual, 0.0 V, End of range.
Set up parameters:
♦ 
Select any line of variables with the 
↓↓
 -key or the 
↑↑
 -key.
♦ 
Select the variable with the 
88 
 -key or the 
 -key.
♦ 
Select any digit with the 
 -key or the 
 -key and adjust a new value with
the 
↑↑
 -key or the 
↓↓
 -key
resp. select the whole parameter with the 
↑↑
 -key or the 
↓↓
 -key.
♦ 
Confirm the new value with the 
88 
 -key or
cancel and go back to the last value with the F2 key.
Measure
Back...
MLT25/CH2/R2
F1
F2
F3
F4
F5
95.00 ppm
-- General Concentration Measurement Setup --
Sample gas unit:
ppm
"ppm" --> "mg/Nm3" conversion factor:
1.000
Lower explosion limit (LEL):
10.00  %
Upper explosion limit (UEL):
20.00  %
Measurement output during failure:
Actual
5.1
Analyzer Module Setup
5.1.10 Concentration Measurement Parameters