Teledyne 7300A manual Infrared Gas Analyzer Operation Password Protection, Entering the Password

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Infrared Gas Analyzer

Operation 4

 

 

 

 

 

 

 

 

 

4.3.3 Password Protection

Before a unique password is assigned, the system assigns TAI by default. This password will be displayed automatically. The operator just presses the Enter key to be allowed total access to the instrument’s features.

If a password is assigned, then setting the following system parameters can be done only after the password is entered: alarm setpoints, AUTO-CAL setup. ZERO/SPAN calibration assigning a new password, range/application selections, and curve algorithm linearization. (APPLICATION and ALGO- RITHM are covered in the programming section.) However, the instrument can still be used for analysis or for initiating a self-test without entering the password. To defeat security the password must be changed back to TAI.

NOTE: If you use password security, it is advisable to keep a copy of the password in a separate, safe location.

4.3.3.1Entering the Password

To install a new password or change a previously installed password, you must key in and ENTER the old password first. If the default password is in effect, pressing the ENTER button will enter the default TAI password for you.

Call out MAIN MENU setup by selecting any controls

Use the UP or DOWN key to scroll the blinking over to PSWD, and press Enter to select the password function. Either the default TAI password or AAA place holders for an existing password will appear on screen depending on whether or not a password has been previously installed.

Enter password:

T A I

or

Enter password:

A A A

The screen prompts you to enter the current password. If you are not using password protection, press Enter to accept TAI as the default password. If a password has been previously installed, enter the password using the ENTER key to scroll through the letters, and the UP or DOWN key to change the letters to the proper password. The last ENTER enters the password.

In a few seconds, you will be given the opportunity to change this pass- word or keep it and go on.

Change Password? <ENT>=Yes <ESC>=No

Teledyne Analytical Instruments

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Contents Teledyne Analytical Instruments Model 7300ACopyright 2000 Teledyne Analytical Instruments Model 7300AApplication Impurity of Interest Infrared Gas Analyzer Technician Record SheetModel 7300A Teledyne Analytical Instruments Model 7300A Installation Table of Contents IntroductionModel 7300A Infrared Gas Analyzer Start-up and Theory of Operation Table of ContentsOperation Electrical/Control Unit Modes/Functioning Appendix MaintenanceTypical Gas Applications OverviewInfrared Gas Analyzer Introduction General Main Features of the AnalyzerIntroduction Model 7300A Ndir Analyzer Introduction Model 7300A Teledyne Analytical Instruments Infrared Gas Analyzer Installation Installing and Connecting the AnalyzerUnpacking the Analyzer/Inspection Calibration Gases Installation Model 7300AElectrical Power Connections User ConnectionsVenting the System Infrared Gas Analyzer Installation Pipe ConnectionsElectrical Connections Rear Panel Sample Delivery SystemAnalog Outputs Installation Model 7300A Primary Input PowerFuse Installation 3 50-Pin Equipment Interface ConnectorExamples Pin FunctionOutput V dc Output mA dc Range Voltage Current mA Application Alarm RelaysDigital Remote Cal Inputs Pin ContactRemote Calibration Connections Range ID Relays Remote Valve ConnectorNetwork I/O FET Series Resistance 4 RS-232 PortParameter Setting Command DescriptionGas Requirements Calibration Calibration Fluids Testing the SystemCalibration Infrared Gas Analyzer Installation Installation Model 7300A Teledyne Analytical Instruments Infrared Gas Analyzer Start-up and Operation PreliminaryNdir Analyzer Startup Initial Set-up and ZeroingStart-up and Theory of Operation Model 7300A Operational CalibrationAnalyzer Theory of operation GeneralBlock Diagram of the Model 7300A Electronics Circuit Description Digital Signal Processing & Electronics Linearizer Linearizer Output Linearizer Input Teledyne Analytical Instruments Page Infrared Gas Analyzer Operation IntroductionMode/Function Selection Using the ControlsAnalysis Mode Operation Model 7300ASetup Mode Setup Mode Enter Data EntryEscape Enter Setting up an AUTO-CALEntering the Password Infrared Gas Analyzer Operation Password ProtectionAAA Installing or Changing the PasswordLogging Out System Self-Diagnostic TestChecking Linearity with Algorithm Model ScreenTroubleshooting information Digital Filter Setup Zero Offset Adjustment CAL-OUT Function Adjst output to 4ma ENT to OK Zero Cal Zero and Span FunctionsAuto Mode Zeroing Cell Failure Manual Mode ZeroingSpan Cal Auto Mode SpanningManual Mode Spanning Installation Alarms FunctionPress enter again to set the alarm setpoints Manual Select/Define Range Screen Range Select FunctionAuto Screen Precautions Illustrates these schemes graphically Analyze FunctionSet Application Screen ProgrammingOFFST/INVRT ENT Checking the linearization Curve Algorithm ScreenManual Mode Linearization Auto Mode Linearization Offset OUTPUT/Reversal Output Output Signal Reversal Special Function SetupPolarity Reversal Output Signal OffsetGain Preset Infrared Gas Analyzer Maintenance MaintenanceMaintenance Model 7300A Routine MaintenanceFilter Ndir Analyzer Measurement Cell System Self Diagnostic TestPreamp PowerMajor Internal Components AnalogCell Assembly Troubleshooting General Trouble Shooting Chart Maintenance Model 7300A Infrared Gas Analyzer Maintenance Maintenance Model 7300A Teledyne Analytical Instruments Infrared Gas Analyzer Appendix Drawing List SpecificationsAppendix Model 7300A Qty Description Recommended 2-Year Spare Parts ListAttachment 7300A Infrared Gas Analyzer Appendix