Rear Panel Description - Teledyne 3190 Series Operating Instructions Manual

Trace Oxygen Analyzer
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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:
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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:
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1.4
The rear panel contains the electrical input and output connectors.
Separate rear panel illustrations are shown in Figure 1-2 for the AC and DC
powered versions of the instrument. The connectors are described briefly
here and in detail in the Installation chapter of this manual.
Set HI Alarm Set the concentration ABOVE which an
alarm activates.
Set LO Alarm Set the concentration BELOW which an
alarm activates.
Set HI Range Set the high analysis range for the instrument
(up to 0-9999 ppm).
Set LO Range Set the low analysis range for the instrument
(down to 0-10 ppm).
Span Span calibrate the analyzer.
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.
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.

Rear Panel Description

Teledyne Analytical Instruments
Introduction 1
1-3