Part 3 Operation
3.2
Measurement Range Overview
The OMD-480 Portable Percent Oxygen Analyzer allows the user to field select 5 available ranges - cus-
tom ranges are available upon request. These ranges can be selected in manual mode meaning they are
locked into that range by the user (only the analog output is locked), or they can be set to auto-range
so the analyzer will adjust to give you the best full scale resolution. The OMD-480 has the following
ranges as standard:
Range 1
0 - 1%
Range 2
0 - 5%
Range 3
0 - 10%
Range 4
0 - 25%
Range 5
0 - 100%
From the HOME screen, press the MENU key and the display will indicate:
Use the UP / DOWN keys to move the cursor to allow the user
to select AUTO-RANGE which will all ow the unit to cycle through
all five ranges or MANUAL RANGE which will allow the user to
select a specific range and lock the analog output.
Decide which option will work best for your application. Move
the cursor button over the selection and press the ENTER key.
If you have selected AUTO RANGE, it will blink for a second
indicating this was selected. If you have selected the MANUAL
RANGE, the following screen will be brough up:
Use the UP / DOWN keys and bring the cursor besides the range to be
selected and press the ENTER key. The selected range will blink for
a second indicating the range has been selected.
Press the ESC key to move back to the previous screen.
