Part 3 Operation
3.1
Understanding the Controls and their Operation
The OMD-501D Trace Oxygen Analyzer is a feature packed unit with an easy to use menu interface.
The key attributes within the menu are the ability to select a measurement range, both manually or set
it to the auto-range mode. To calibrate the unit with a known gas, also refered to as a SPAN Calibra-
tion or SPAN CAL.
T
o adjust, set or use the delay mode of the two onboard user programmable
Alarm Relay Contacts.
All features are programmable / selectable through the MENU bottom. The UP / DOWN arrows will
allow you to select your setpoints and the enter buttom saves the data. If you want to cancel your selec-
tion, or return to the previous screen the escape key ESC will allow you to do this. Once the unit starts
up, the following HOME Screen will appear:
Operating Range
Current Sensor Reading
Identifier, Manual
or Auto Range
Alarm 1 Configuration
Alarm 2 Configuration
