Orbisphere 3600 series - 1.4.1 Display Units

18 3600 Analyzer for O
2
Measurement—Operator’s Manual
3600O2.OM.E9903
To activate the “Modify Options” menu when your system is in Measurement
mode, press the red “ESC” key to reveal this menu:
MEASURE OPTIONS
CALIBRATE
Using the yellow “ñ” or “ò” arrow keys, highlight “Options” and press
“ENTER” to display the Modify Options menu.
MODIFY OPTIONS
DISPLAY UNITS
The first “Modify Options” screen will depend on which option was last used. For
this manual, we will start with the “Display Units” option.
1.4.1 Display Units
The “Display Units” option allows you to specify whether your oxygen
measurement is for dissolved gas, fraction, or partial pressure; which units of
measurement are to be displayed; the display resolution (decimal placement); the
number of ranges desired; and the temperature units to be displayed.
Below are the standard choices of display units (certain specialized applications
may have additional units available as well):
Dissolved (in water)
ppb:ppm gas concentration in parts per billion or parts per million, by weight *
ppb gas concentration in parts per billion, by weight
ppm gas concentration in parts per million, by weight
mg/l gas concentration in milligrams per liter
%sat(O2) gas concentration in percentage, relative to water saturated in Oxygen
%sat(Air) gas concentration in percentage, relative to water saturated in Air
Partial Pressure
bar gas pressure in bars
mbar gas pressure in millibars
kPa gas pressure in kiloPascals
psia gas pressure in pounds per square inch, absolute pressure
Atm gas pressure in atmospheres
ppm:% gas pressure, relative to calibration pressure, in parts per million or percentage *
Fraction
pmv:%V percentage of gas volume, relative to external pressure sensor (partial pressure /
external pressure), expressed as parts per million or percentage, by volume *
* Composite measurement units—both units are available in autoranging mode; when the
measurement drops below 1.000 of the higher (second listed) units, the measurement is displayed
in the lower (first listed) units.
Under the “Modify Options” menu, highlight “Display Units” using the “ñ” or
“ò” arrow keys, and then press “ENTER” to display this screen:
DISPLAY UNITS
DISSOLVED
You have the choice of “Dissolved”, “Partial Pressure”, or “Fraction” oxygen
measurement. Use the “ñ” or “ò” arrow keys to move the highlight from one
choice to another, and press “ENTER” to select that option.