Emerson Process Management ROSEMOUNT NGA2000 HFID - Manual (Page 34)

Instruction Manual
748297-E
June 2003
3-4 Startup and Operation Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 HFID
15. Check and re-adjust the internal pres-
sures if required.
16. The unit is ready for operation.
3-3 BINDING
To achieve full coordination between Analyzer
Modules and associated I/O Modules, the
user must bind those components together in
the System Set Up portion of the Technical
Configuration Menu in software.
3-4 CALIBRATION
Calibration gas setup is as follows:
1. Set oven temperature setpoint.
2. Apply regulated air at a pressure be-
tween 10 and 25 psig.
3. Allow case, oven, and sample tem-
peratures to stabilize.
4. Supply heated zero gas to sample
inlet. Adjust external flow controller or
throttle valve so that the sample inlet
pressure is between 5 and 9 psig., 7
nominal.
5. Supply heated span gas to sample in-
put. Repeat adjustment described in
step 3. The reading of the sample
pressure, oven, and sample tempera-
tures should be the same as that used
during the adjustment of the zero gas.
See Section 2-4g on page 2-3 for a descrip-
tion of the method for choosing calibration
zero and span gases.
To calibrate the Analyzer Module, introduce
zero gas into the SAMPLE INLET, and do the
following:
1. If more than one Analyzer Module is
functional and the split Run Mode dis-
play is shown, press the DISPLAY soft-
key until the desired Analyzer's Run
Mode display is acquired.
2. Press the MENUS softkey to enter the
Main Menu.
3. Verify the fuel type in the Miscellaneous
Control Parameters menu (under the
Technical Configuration menu structure,
select the following from the Main Menu:
Diagnostic menus, Analyzer Module Di-
agnostics and then Miscellaneous Con-
trol Parameters).
4. Verify the capillary type in the Analyzer
Manufacturing Data menu (under the
Technical Configuration menu structure,
select the following from the Main Menu:
Technical Level Configuration, Service
Menus, Manufacturing Data, Analyzer
Module Data).
5. In the Calibration Gas List menu (from
the Main Menu, select Expert Controls
and Setup, Analyzer Module Setup, then
Calibration Gas List), enter necessary
data, including the Operational Sample
Pressure and the Calibration Gas HC
Response Factor. Common HC factors
are: methane (CH
4
), 1.0, ethane (C
2
H
6
),
1.90, propane (C
3
H
8
), 3.00. These fac-
tors are not used to compensate the
reading, but are used to select the
proper preamp sense resistor.
6. Press HOME to re-enter the Main Menu,
enter the Basic Controls menu, select
desired range, introduce zero gas and
allow its response to stabilize, press the
ZERO softkey to enter the Analyzer
Zero menu, press ZERO again and wait.
7. Press the SPAN softkey to enter the
Analyzer Span menu, introduce span
gas and allow its response to stabilize,
press SPAN again and wait.
8. Repeat steps 6 and 7.
9. Press the HOME softkey to re-enter the
Main Menu.
10. Press DISPLAY softkey for the Run
Mode display.