Emerson NGA 2000 TO2 - Manual (Page 42)

Instruction Manual
760008-A
September 2001
3-18 Operation Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA 2000 TO2
c. Ranges
From the Analyzer Module Setup and
Controls menu, choose Ranges as fol-
lows:
Figure 3-19. Ranges
Move the cursor to the “Ranges…” line and
press the
↵ key. The “Ranges” menu will dis-
play as shown below.
The “Actual range number:” line on the
Ranges menu shows the current range num-
ber being used and allows changing of the
range. The range values display below the
line.
The “Range and calibration control:” function
establishes the authority for setting the ana-
lyzer range and starting calibration. The
choices are:
Local: The range and calibration are con-
trolled from the local platform. This is the
normal mode of operation using the menus.
Program I/O module: The range and cali-
bration are controlled by the programmable
I/O board.
Inputs I/O module: The range and calibra-
tion are controlled by the DIO digital inputs.
Move the cursor to the Begin/end of ranges..”
line and press the
↵ key to reach the “Begin /
End of Ranges” menu as shown.
Select any desired line and press the ↵ key
to change any of the values using the ↑ and
↓ keys or the ← and → keys to select a digit.
TO2 37.50 ppm
-- Analyzer Module Setup and Controls --
Calibration…
Alarms…
Ranges…
Linearization…
Measurement display configuration…
Concentration measurement…
Flow measurement…
Temperature measurement…
Measure Back… Status…
TO2 37.50 ppm
Measure Back…
-- Ranges --
Begin / end of ranges…
Actual range number: 3
Range and calibration control: Local
Actual begin of range: 0.0 ppm
Actual end of range: 50.0 ppm
TO2 37.50 ppm
-- Begin / End of Ranges --
Range – 1 begin: 0.0 ppm
Range – 1 end: 10.0 ppm
Range – 2 begin: 0.0 ppm
Range – 2 end: 25.0 ppm
Range – 3 begin: 0.0 ppm
Range – 3 end: 50.0 ppm
Range – 4 begin: 0.0 ppm
Range – 4 end: 100.0 ppm
Measure Back…
Main Menu
↓
Analyzer and I/O, expert controls and setup…