Percent Oxygen Analyzer Introduction
Teledyne Analytical Instruments 13
• Set Alarm 2 Sets the concentration at which alarm 2
activates upon dropping below the
threshold (LO alarm).
• Set HI Range Set the high analysis range for the
instrument (up to 0-100%).
• Set LO Range Set the low analysis range for the
instrument (down to 0-1%).
• Span Span calibrate the analyzer.
Data Entry Keys: Two pushbutton membrane switches are used to
manually change measurement parameters of the instrument as they are
displayed on the LED meter readout:
• Up Arrow Increment values of parameters upwards
as they are displayed on the LED readout.
• Down Arrow Increment values of parameters
downwards as they are displayed on the
LED readout.
Digital LED Readout: The digital display is a LED device that
produces large, bright, 7-segment numbers that are legible in any
lighting environment. It has two functions:
• Meter Readout As the meter readout, it displays the oxygen
concentration currently being measured.
• Measurement Parameters Readout The parameter readout
displays user-defined alarm setpoints, ranges, span calibration
point when they are being checked or changed, and probe
temperature on demand.
1.4 Rear Panel Description The rear panel contains the electrical input and output connectors.
The connectors are described briefly here and in detail in the Installation
chapter of this manual.