Teledyne 3000ZA operating instructions Range ID Output Voltage

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Operation

3000ZA

 

 

 

80 0.8 16.8

90 0.9 18.4

100 1.0 20.0

The analog output signal has a voltage which depends on the oxygen concentration AND the currently activated analysis range. To relate the signal output to the actual concentration, it is necessary to know what range the instrument is currently on, especially when the analyzer is in the autoranging mode.

To provide an indication of the range, a second pair of analog output terminals are used. They generate a steady preset voltage (or current when using the current outputs) to represent a particular range. The following table gives the range ID output for each analysis range:

Table 4-2: Range ID Output Voltage

 

Range Voltage (V)

Current (mA)

LO

0.25

8

MED

0.50

12

HI

0.75

16

IMPORTANT: In the event of loss of flow through the analyzer, if the vent is vented to a location of high oxygen content, oxygen will back diffuse through the vent line and enter the cell. This can saturate the cell with oxygen and require a long purge down time before the sensor can recover. However, the ZrO2 sensor recovers faster than the microfuel oxygen sensor. In the event that flow is to be interrupted into the analyzer, it is suggested that the user do one of the following:

1.Bag the sensor in nitrogen during this time

2.Install a shut off valve on the vent port of the analyzer or somewhere within the users sample system.

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 Overview Main Features of the AnalyzerIntroduction 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 ZrO2 Sensor Operational TheoryIntroduction 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 Cell Replacement MaintenanceRoutine Maintenance 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