Teledyne 3300PA - Low cost percent oxygen analyzer - Manual (Page 9)

1-3
Percent Oxygen Analyzer Introduction 1
Teledyne Analytical Instruments
• Set Alarm 2 Sets the Alarm 2 Hi or Low, and the
concentration to which alarm 2 activates.
• Set HI Range Set the high analysis range for the instrument (up
to 0-25 %).
• 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: It also displays user-
definable alarm setpoints, ranges, and span calibration point when
they are being checked or changed.
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.
Figure 1-2 Rear Panel