Teledyne 3000ZA operating instructions Cleaning, Troubleshooting

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Maintenance	3000ZA

•Analysis Section

•Zirconium oxide sensor

•Cell block

•Sample system

•Power Supply

•Microprocessor

•Displays

•5 digit LED meter

•2 line, 20 character, alphanumeric, VFD display

•RS-232 Communications Port

See the drawings in the Drawings section in back of this manual for details.

5.6 Cleaning

If instrument is unmounted at time of cleaning, disconnect the instrument from the power source. Close and latch the front-panel access door. Clean outside surfaces with a soft cloth dampened slightly with plain clean water. Do not use any harsh solvents such as paint thinner or benzene.

For panel-mounted instruments, clean the front panel as prescribed in the above paragraph. DO NOT wipe front panel while the instrument is controlling your process.

5.7 Troubleshooting

Table 5-2: Troubleshooting

Problem	Possible Cause	Solution

Erratic readings of the	Analyzer may have	1. Turn analyzer off,
oxygen concentration	been calibrated in an	then back on again.
as reported by the	inaccurate fashion.	Press System key
analyzer		when prompted by
		analyzer “Press
		System for Default
		Values”. This will
		return the default
		settings to the

Teledyne Analytical Instruments

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Contents Model 3000ZA 3000ZA Specific Model Information Important Notice Safety Messages 3000ZA Vii Table of Contents Maintenance OperationAppendix IndexList of Figures Model 3000ZA Front PanelList of Tables Main Features of the Analyzer IntroductionOverview Typical ApplicationsModel Designations Introduction 3000ZAFront Panel Operator Interface Model 3000ZA Front PanelIntroduction 3000ZA Rear Panel Equipment Interface Model 3000ZA Rear PanelPower Connection Universal AC power source Scheduled calibrations can vary 2-3 % per day Operational Theory IntroductionZrO2 Sensor Principles of OperationSample System Model 3000ZA Sample SystemElectronics and Signal Processing Zirconium Oxide Sensor Application NotesTrace Oxygen Analyzer Operational Theory Component Location Electronic Block Diagram Mounting the Analyzer InstallationUnpacking the Analyzer Trace Oxygen Analyzer Installation Rear Panel Connections Gas ConnectionsSample Primary Input Power Electrical ConnectionsEquipment Interface Connector Pin Arrangement Analog Output Connections Alarm Relay Contact Pins Remote Calibration Connections Range ID Relay Connections Remote Probe Connections Commands via RS-232 Input 2.3 RS-232 PortInstalling the Zirconium Oxide Sensor Testing the SystemTrace Oxygen Analyzer Installation Operation Using the Data Entry and Function Buttons Hierarchy of Available Functions System Function TRAK/HLD Auto-Cal Pswd Logout More Setting up an Auto-Cal Password Protection Pswd Restrictions Removed Retype PWD To Verify System Self-Diagnostic Test LogoutVersion Screen Showing Negative Oxygen ReadingsZero and Span Functions Zero Cal Zero Settling Man ENT To Begin Span Cal #### ppm Span Slope=#### ppm/s Span Failure Alarms Function AL-1 AL-2 Choose Alarm Setting the Analog Output Ranges Range FunctionFixed Range Analysis Signal Output Analyze FunctionRange ID Output Voltage Page Maintenance Routine MaintenanceCell Replacement Removing the SensorFuse Replacement Trace Oxygen Analyzer MaintenanceSystem Self Diagnostic Test Installing FusesMajor Internal Components Rear Panel Removal Remove only those screws marked with anCleaning TroubleshootingIf erratic behavior Specifications AppendixTrace Oxygen Analyzer Appendix Recommended 2-Year Spare Parts List Drawing List 19-inch Relay Rack Panel MountApplication Notes Flow Rate RecommendationsBY-PASS Conversions PSI Scfh = 0.476 Slpm Index Trace Oxygen Analyzer Index Relay connections, 22 relay contacts Trace Oxygen Analyzer Index Teledyne Analytical Instruments