CHAPTER 2, INSTALLATION AND OPERATION
98307600 Rev. C-1 2-19
The MEASUREMENT MENU consists of three items needed for basic operation and
data integrity.
UNIT SELECTION
PPM (parts per million), mG/M
3
(milligrams per cubic meter), nG/M
3
(nanograms per
cubic meter), G/M
3
(micrograms per cubic meter), PPT (parts per trillion) or PPB
(parts per billion).
Note
If the gravimetric units are selected (mG/M
3
, µG/M
3
or
nG/M
3
), then the conversion factors listed
below will apply depending on the
CONVERSION TEMP selected.
To convert 1 PPB “Gas” to ug/m
3
@
Multiply by:
0 °C 20 °C 25 °C
CO
1.250 1.165 1.145
CO
2
1.960 1.830 1.800
Note
If the units in the MEASUREMENT MENU are changed
from volumetric to gravimetric (or gravimetric to
volumetric), the analyzer must be re calibrated in
order to meet U.S. EPA requirements.
CONVERSION TEMP
Sets the temperature that should be used in internal calculations to convert the
concentration from volumetric units into gravimetric units (mG/M
3
, µG/M
3
or
nG/M
3
) in DEGREES CELCIUS (0, 20, 25). *This menu option is only displayed
when the gravimetric units are selected.
DECIMAL PLACES
Set the number of decimal places in which the data is displayed on the screen. (0,
1, 2, 3, 4 or 5).
Note
The screen is able to display up to 7 characters of
data including the decimal place for each reading.
AVERAGE PERIOD
Set time in HOURS (1, 4, 8, 12, or 24) or MINUTES (1, 3, 5, 10, 15, or
30). This field is a wraparound field.
To Next Page
Loading...
Need help?
General
