Teledyne 3300ZB operating instructions Rear Panel Description, ∙ Measurement Parameters Readout

Trace Oxygen Analyzer Introduction

∙Set LO Alarm Set the concentration BELOW which

an alarm activates.

∙Set HI Range Set the high analysis range for the instrument (up to 0-1,000 ppm).

∙Set LO Range Set the low analysis range for the instrument (down to 0-1,000 ppm).

∙ 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 set- points, 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. 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 Chapter 3 - Installation.

Teledyne Analytical Instruments 3