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Background Gas
This selection allows for the proper background gas to be set. It is critical that
the background is chosen to represent the actual process gas as closely as pos-
sible, The background gas is typically chosen at the factory during calibration
to ensure the best accuracy, based on the customer application data. However, it
may be changed using this utility. Changing the background gas results in the ap-
plication of a multiplication factor to the factory calibration curve
Units
Use the Unit function to select the unit of measurement for the analyzer. (The
map below is shown as an example using moisture.)
MOISTURE
UNITS
Menu for the Unit key.
Select the unit for the readings from the list. Press Enter.
If you choose either Dew Point C (dewC) or Dew Point F (dewF), you must also
select one of the following:
Fixed Pressure
Transmitter
Secondary Unit
NOTE
4-14 | Model 5100 HD Analyzer
PPMV
LB/MMSCF
MG/NM3
Dewpoint C
Dewpoint F
Enter the value in units of kPa
Enter High Pressure and a Low Pressure in units of kPa
Choose moisture unit: ppmV, lb/mmscf, or mg/nm
If you change the units, remember to make any necessary changes to
the Alarm and Analog Range settings.
Pressure
Fixed Pressure
Transmitter
High Pressure
Low Pressure
Secondary Unit
LB/MMSCF
MG/NM3
Pressure
Fixed Pressure
Transmitter
High Pressure
Low Pressure*
Secondary Unit
LB/MMSCF
MG/NM3
*
*
*
PPMV
*
*
PPMV
3
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