Teledyne 450H Options, Auto-ZeroOption, Isolated Current Output 4-20mAor 2-20mA, Flow-meter

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1.8 Options

1.8.1 Auto-Zero Option

This option consists of a three way valve that is used to admit customer supplied oxygen or zero gas into the instrument for performing an automatic or manual zero calibration. This calibration can be done automatically once a day or at some other pre-set interval, or can be controlled by an external system, such as a PLC.

1.8.2 Isolated Current Output (4-20mA or 2-20mA)

This option converts the M450H’s voltage output to an isolated 4-20mA driver with an integral loop power supply. It is programmable for 4-20mA or 0-20mA and has a 1500 V common mode voltage isolation and 240 V RMS normal mode voltage protection. Vloop = 28V max which is sufficient to drive up to a 1000 ohm load.

1.8.3 Flow-meter

A variable area flowmeter can be included on the front panel to give a visual indicator of gas flow through the instrument.

1.8.4 Ozone Killer

This option consists of a catalytic ozone scrubber that converts most of the ozone back into oxygen before it is exhausted from the instrument.

1.8.5 Flow Switch

This option is an on/off type flow switch that is used to send a signal to the CPU in case the flow drops below the minimum required for proper operation of the instrument. In case of flow failure, the instrument will issue a warning on the front panel and will turn on the flow warning status bit, indicating an instrument error.

1.8.6 Rack mount with slides

This option, including slides and rack mounting ears, permits the Monitor to be mounted in a standard 19" wide x 30" deep RETMA rack. This option is not available for the NEMA 4X enclosure.

P/N 02826B1 Teledyne API Model 450H O3 Monitor Instruction Manual - Page 26

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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