Teledyne 7300A manual Range Voltage Current mA Application, Alarm Relays

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2 Installation

Model 7300A

 

 

 

 

 

 

 

 

 

6

0.6

13.6

7

0.7

15.2

8

0.8

16.8

9

0.9

18.4

10

1.0

20.0

To provide an indication of the range, the Range ID analog outputs are used. They generate a steady preset voltage (or current when using the current outputs) to represent a particular range. Table 2-4 gives the range ID output for each analysis range.

Table 2-4: Analog Range ID Output—Example

Range

Voltage (V)

Current (mA)

Application

Range 1

0.25

8

90-100% CO/N2

Range 2

0.50

12

95-100% CO/N2

Range 3

0.75

16

0-100% CO/N2

Range 4 (Cal) 1.00

20

98-100% CO2/N2

2.3.3.2Alarm Relays

The nine alarm-circuit connector pins connect to the internal alarm relay contacts. Each set of three pins provides one set of Form C relay contacts. Each relay has both normally open and normally closed contact connections. The contact connections are shown in Table 2-4. They are capable of switching up to 3 amperes at 250 V ac into a resistive load. The connectors are:

Threshold Alarm 1: • Can be configured as high (actuates when concen- tration is above threshold), or low (actuates when concentration is below threshold).

Can be configured as failsafe or nonfailsafe.

Can be configured as latching or nonlatching.

Can be configured out (defeated).

Threshold Alarm 2: • Can be configured as high (actuates when concen- tration is above threshold), or low (actuates when concentration is below threshold).

Can be configured as failsafe or nonfailsafe.

Can be configured as latching or nonlatching.

Can be configured out (defeated).

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Teledyne Analytical Instruments

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Contents Model 7300A Teledyne Analytical InstrumentsModel 7300A Copyright 2000 Teledyne Analytical InstrumentsInfrared Gas Analyzer Technician Record Sheet Application Impurity of InterestModel 7300A Teledyne Analytical Instruments Model 7300A Table of Contents Introduction InstallationModel 7300A Infrared Gas Analyzer Table of Contents Start-up and Theory of OperationOperation Electrical/Control Unit Modes/Functioning Maintenance AppendixOverview Typical Gas ApplicationsInfrared Gas Analyzer Introduction Main Features of the Analyzer GeneralIntroduction Model 7300A Ndir Analyzer Introduction Model 7300A Teledyne Analytical Instruments Installing and Connecting the Analyzer Infrared Gas Analyzer InstallationUnpacking the Analyzer/Inspection User Connections Installation Model 7300AElectrical Power Connections Calibration GasesSample Delivery System Infrared Gas Analyzer Installation Pipe ConnectionsElectrical Connections Rear Panel Venting the System3 50-Pin Equipment Interface Connector Installation Model 7300A Primary Input PowerFuse Installation Analog OutputsPin Function ExamplesOutput V dc Output mA dc Alarm Relays Range Voltage Current mA ApplicationPin Contact Digital Remote Cal InputsRemote Calibration Connections Remote Valve Connector Range ID RelaysNetwork I/O 4 RS-232 Port FET Series ResistanceCommand Description Parameter SettingGas Requirements Testing the System Calibration Calibration FluidsCalibration Infrared Gas Analyzer Installation Installation Model 7300A Teledyne Analytical Instruments Initial Set-up and Zeroing PreliminaryNdir Analyzer Startup Infrared Gas Analyzer Start-up and OperationOperational Calibration Start-up and Theory of Operation Model 7300ATheory of operation General AnalyzerBlock Diagram of the Model 7300A Electronics Circuit Description Digital Signal Processing & Electronics Linearizer Linearizer Output Linearizer Input Teledyne Analytical Instruments Page Introduction Infrared Gas Analyzer OperationOperation Model 7300A Using the ControlsAnalysis Mode Mode/Function SelectionSetup Mode Setup Mode Data Entry EnterEscape Setting up an AUTO-CAL EnterInfrared Gas Analyzer Operation Password Protection Entering the PasswordInstalling or Changing the Password AAASystem Self-Diagnostic Test Logging OutModel Screen Checking Linearity with AlgorithmTroubleshooting information Digital Filter Setup Zero Offset Adjustment CAL-OUT Function Adjst output to 4ma ENT to OK Zero and Span Functions Zero CalAuto Mode Zeroing Manual Mode Zeroing Cell FailureAuto Mode Spanning Span CalManual Mode Spanning Alarms Function InstallationPress enter again to set the alarm setpoints Range Select Function Manual Select/Define Range ScreenAuto Screen Precautions Analyze Function Illustrates these schemes graphicallyProgramming Set Application ScreenOFFST/INVRT ENT Curve Algorithm Screen Checking the linearizationManual Mode Linearization Auto Mode Linearization Special Function Setup Offset OUTPUT/Reversal Output Output Signal ReversalOutput Signal Offset Polarity ReversalGain Preset Maintenance Infrared Gas Analyzer MaintenanceRoutine Maintenance Maintenance Model 7300AFilter System Self Diagnostic Test Ndir Analyzer Measurement CellAnalog PowerMajor Internal Components PreampCell Assembly Troubleshooting General Trouble Shooting Chart Maintenance Model 7300A Infrared Gas Analyzer Maintenance Maintenance Model 7300A Teledyne Analytical Instruments Infrared Gas Analyzer Appendix Specifications Drawing ListAppendix Model 7300A Recommended 2-Year Spare Parts List Qty DescriptionAttachment 7300A Infrared Gas Analyzer Appendix