Teledyne 3000ZA-3X Function Keys, Data Entry Keys, Digital Meter Display, Flowmeter

Introduction 3000ZA-3X

Function Keys:

Six touch-sensitive membrane switches are used to change the specific function performed by the analyzer:

∙Analyze Perform analysis for oxygen content of a sample gas.

∙System Perform system-related tasks (described in detail in chapter 4, Operation.).

∙Span Span calibrate the analyzer.

∙Zero Zero calibrate the analyzer.

∙Alarms Set the alarm setpoints and attributes.

∙Range Set up the 3 user definable ranges for the instrument.

Data Entry Keys:

Six touch-sensitive membrane switches are used to input data to the instrument via the alphanumeric VFD display:

∙Left & Right Arrows Select between functions currently displayed on the VFD screen.

∙Up & Down Arrows Increment or decrement values of functions currently displayed.

∙Enter Advances VFD display to the next screen in a series or returns to the Analyze screen if none remain.

∙Escape Backs VFD display to the previous screen in a series or returns to the Analyze screen if none remain.

Digital Meter Display:

The meter display is a Light Emitting Diode (LED) device that produces large, bright, 7-segment numbers that are legible in any lighting. It produces a continuous readout from 0-250 ppm. It is accurate across all analysis ranges without the discontinuity inherent in analog range switching.

Alphanumeric Interface Screen:

The VFD screen is an easy-to-use interface from operator to analyzer. It displays values, options, and messages that give the operator immediate feedback.

Flowmeter:

Monitors the flow of gas past the sensor. Readout is 0.2 to 2.4 standard liters per minute (SLPM).

Teledyne Analytical Instruments 4