Teledyne 3000ZA2G - Zirconium oxide analyzer - Manual (Page 16)

Introduction 3000ZA2G
Teledyne Analytical Instruments 4
 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 alphanumeric screen is a vacuum fluorescent display (VFD) screen
with an easy-to-use interface. 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).
Reference Flowmeter:
Monitors the flow of reference gas past the sensor. Readout is 0.2 to 2.4
standard liters per minute (SLPM).
Note: It is possible to use the analyzer without a flowing
reference but doing so will incur a marginal degradation in
performance. See Section 2.2.1. TAI recommends using a
flowing reference for best results.
Flow Control Valve:
The sample control valve allows precise adjustment over sample or
calibration gas flow to the analyzer.
Reference Flow Control Valve:
Control valve for the reference flow through the analyzer.
Standby Button :
The Standby turns off the display and outputs but circuitry is still
operating.
CAUTION: THE POWER ENTRY SWITCH ON THE REAR OF THE
INSTRUMENT MUST BE TURNED OFF TO FULLY
DISCONNECT POWER FROM THE INSTRUMENT.
WHEN CHASSIS IS EXPOSED OR WHEN ACCESS