3.3
Measurement Range Overview
The OMD-525X oxygen analyzer allows the user to field select 5 available ranges - custom ranges can
be programmed in the built-in menu, see Section 3.7. These ranges can be selected in manual mode,
meaning they are locked into that range by the user, or they can be set to auto-range so the analyzer
will adjust to give you the best full scale resolution.
When using the Manual-Range mode the Manual Range locks the 4 - 20mA output to a single range,
and the display will continue to operate in auto-range mode giving the user the full spectrum of
analysis ranges. Other manufactures lock the display as well - the problem is if you over-range and
the display is locked you have no idea what your oxygen value is. The OMD-525X solves this issue
with a display that auto-ranges and the ability to manually lock the analog outputs.
To select Auto-Range or Manual-Range Mode, from the HOME screen, press the MENU key and the
display will indicate:
Using the UP / DOWN keys to change which option is highlighted
will allow the user to select AUTO-RANGE, which will all the unit to
cycle through all five ranges, or MANUAL RANGE which will allow
the user to select a specific range.
Decide which option will work best for your application.
Highlight the selection and press the ENTER key. If you
have selected the AUTO RANGE option, it will blink for a
second indicating this was selected. If you selected the
MANUAL RANGE option, the following screen will be brought up:
**Note: Analyzers can be configured for Trace, Percent and
Purity Analysis so your ranges might be different.
Trace: 0 - 10ppm, 0 - 100ppm, 0 - 1000ppm, 0 - 10000ppm, 0 - 25%
Percent: 0 - 1%, 0 - 5%, 0 - 10%, 0 - 25%, 0 - 100%
If a custom range has been set, it will appear below the 0 - 10 ppm range.
Use the UP / DOWN keys to highlight the range to be selected and press the ENTER key. The se-
lected range will blink for a second indicating the range has been selected.
Press the ESC key to move back to the previous screen.
Designed, Tested, and Assembled in California, USA
4045 E. Guasti Rd. #203 Ontario, CA 91761 USA : 1-949-398-2879 : [email protected] : www.sso2.com
Operation
OMD-525X Oxygen Analyzer
MAIN MENU
AUTO RANGE
MANUAL RANGE
SPAN CAL
ZERO CAL
SET TIME
SET DATE
CONFIG ALARM 1
CONFIG ALARM 2
LOGGING INTERVAL
SYSTEM
MANUAL RANGE
0 - 25%
0 - 10000 PPM
0 - 1000 PPM
0 - 100 PPM
0 - 10 PPM
