Teledyne 450H 3.5Diagnostics DIAG, 3.5.1Zero Calibration, 3.5.2 D/A Calibration, Analog Output

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3.5Diagnostics (DIAG)

3.5.1Zero Calibration

This menu is used for performing manual zero calibration of the M450H. If the Auto-Zero option has been installed and the USE_ZERO_VALVE variable has been enabled (See Section 3.5) then this calibration can be done using gas from the Zero Gas inlet port on the monitor. If this valve is not used, then the zero calibration gas must be supplied at the Ozone Inlet port. To zero the monitor press the ZERO button once. This button will now change to ENTR. Press this button once more to confirm the calibration. The Ozone concentration reading should now go to zero.

3.5.2 D/A Calibration

This menu is used for the calibration of the internal A/D converter and DACs on the V/F Card. This procedure is performed at the factory and should not need to be performed again unless the analog output voltage range is changed or the V/F Card is replaced. For details on performing this calibration see Section 5.3.

3.5.3 Analog Output

This diagnostic function will step the analog output through it’s full scale range in 20% increments, ie. 0% - 20% - 40% - 60% - 80% - 100%. The function pauses for several seconds at each level. To freeze the analog output at a particular level, press and release the button under the % display. Pressing the button again will resume the cycling. This function is useful for calibrating instruments connected to the analog output.

3.5.4 RS232 Output

This diagnostic function outputs a string of w’s out the RS232 port and is used for troubleshooting RS232 connections to a computer. For more details on the use of the RS232 interface, please contact Teledyne API and request document number 01350.

P/N 02826B1 Teledyne API Model 450H O3 Monitor Instruction Manual - Page 38

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Contents Printed 05/15/06 MODEL 450H OZONE MONITOREMAIL api-sales@teledyne.com SAFETY MESSAGES 4.0 MAINTENANCE TABLE OF CONTENTS3.0 SETUP MODE 5.0 ADJUSTMENTS5.4 CURRENT LOOP CALIBRATION APPENDIX A - ELECTRICAL SCHEMATIC INDEX5.3 A/D - D/A CALIBRATION PROCEDURE… FIGURES TABLE 1.2 CONTROL INPUTS TABLESTABLE 1.1 DIGITAL OUTPUTS TABLE 1.3 FINAL TEST AND CALIBRATION VALUES1.0INTRODUCTION 1.1Preface02024c 1.2 WARRANTY POLICYADVANCED POLLUTION INSTRUMENTATION DIVISION COVERAGE1.3 Principle of Operation Page 1.4 Specifications 1.5 Installation 19” Rack Mount EnclosurePage 5.If the M450H has been configured with the auto-zerovalve option, connect the oxygen or other zero gas source to the ¼” tube fitting labeled ‘Zero Gas Inlet.’ Do not exceed 30 psig in the zero air delivery line 1.6 Installation NEMA 4X Wall Mount Enclosure ozone FIGURE 1.1 - NEMA 4X MOUNTING HOLE DIMENSIONS FIGURE 1.2 - NEMA 4X ELECTRICAL POWER CONNECTIONS FIGURE 1.3 - NEMA 4X PNEUMATIC CONNECTIONS 1.6.1Analog Output FIGURE 1.4 - ELECTRICAL SIGNAL I/O CONNECTIONS1.6Electrical I/O Connections 1.6.2 Relay OutputsOutput FIGURE 1.5 - CONNECTING DIGITAL OUTPUTS1.6.4 Control Inputs DescriptionCONTROL INPUTS 1.6.5 RS232 OutputInput Zero CalibrateU V L A M P M O T H E R B V / F C P U A C L I N E FIGURE 1.6 - NEMA4X ASSEMBLY LAYOUTFIGURE 1.7 - M450H PNEUMATIC BLOCK DIAGRAM D C P O W E R SOFigure 1.8 - 19” Rack Assembly Layout POWER SUPPLY MODULE1.7 Operation verification TABLE 1.3 FINAL TEST AND CALIBRATION VALUES 1.8.1 Auto-ZeroOption 1.8.5 Flow Switch1.8 Options 1.8.2 Isolated Current Output 4-20mAor 2-20mA2.1.4 E2 ROM backup of software configuration 2.1Key features2.1.2 Concentration Alarms 2.0OPERATIONFIGURE 2.1 - MODEL 450H FRONT PANEL 2.2 Front Panel Display2.2.1 Front panel display fields Mode FieldTEST MEASUREMENTS Message/Test Measurement FieldTest Message Warning Message2.3.1 Main Menu 2.3 Software Operation2.2.2 Status LED’s StateClearing Alarms 2.3.3 Alarm Status MenuFIGURE 2.3 - ALARM STATUS MENU Audible BeeperPage 3.0 SETUP MODE FIGURE 3.1 - SETUP MENU3.3 Setting the time-of-dayand date CLK 3.1 Setting the Concentration Alarms ALRM3.2 Setting the Concentration Units UNIT HI ALARM OFF3.4 Setting the RS-232baud rate COMM 1 ALARM BEEPER 3.5 Setup variables VARS0 LATCH_ALARMS 3 AZERO ENABLE7 AZERO HOLD OFF 8 GAS MOLECULAR WEIGHT10 TPC ENABLE 9 CONCENTRATION RANGE3.5.2 D/A Calibration 3.5Diagnostics DIAG3.5.1Zero Calibration 3.5.3 Analog Output4.3 Cleaning the Optical Cell 4.0Maintenance4.2Cleaning Exterior Surfaces of the M450H Filter Replacement ProcedureFIGURE 4.1 MEASUREMENT CELL DISASSEMBLY 4.4 Degree of Protection5.1 Calibration 5.0 ADJUSTMENTSSwitch Settings 5.2Changing the analog output rangeFIGURE 4.2- ANALOG OUTPUT JUMPERS 5.3 A/D - D/A Calibration Procedure1.Press SETUP-DIAG 5.4 Current Loop Calibration zero point can be adjusted anywhere between 0 and 4 milliamps. Press ENTR when you have reached the desired zero point as measured by your test meter APPENDIX A - SOFTWARE MENU TREE Page APPENDIX B - SPARE PARTS LIST DESCRIPTIONPage Title APPENDIX C - ELECTRICAL SCHEMATIC INDEXDrawing Number