Teledyne 450H instruction manual ozone

Page 15

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CAUTION

Exhaust gas from the M450H may contain dangerous levels of

ozone!

7.Connect the ozone delivery line to the ¼” inlet fitting on the bottom of the filter assembly. This assembly is located on the bottom face of the enclosure (See Figure 1.3.) The ozone delivery pressure should be regulated to no more than 30psig. All tubing used should be made of ozone resistant material such as PTFE(Teflon™) or PFA. If new, unconditioned tubing is used for the ozone delivery line, the ozone concentration may be affected until the tubing becomes conditioned. Pre-conditioned ¼” tubing can be purchased from Teledyne API. Contact the API sales department and reference part number 02639.

8.If the M450H has been configured with the auto-zero valve 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.

NOTE

The zero gas used must be clean and free of particles. If the gas contains particulate contamination, install a particulate filter in the zero air line. You can purchase an appropriate filter from Teledyne API.

9.With the ozone delivery line pressurized, adjust the ozone flow rate using the needle valve mounted below the sensor inside the instrument. The flow-rate should be set from 0.5 to 2.0 liters/min. The flow-rate required will depend on your system. As a general guideline, the flow should be set to the lowest value that will still achieve an acceptable response time from the instrument. The lower the flow, the slower the response will be. If a long length of tubing is used for the ozone delivery line then the flow-rate may need to be increased so that the ozone concentration will not degrade in the sample line.

10.Turn on the M450H by switching the power switch on the front panel. The front panel display should light with a sequence of messages, -API - M450H - software version number, then a normal display as shown in Figure 2.2.

11.Allow about 10 minutes for the UV lamp temperature to come up to it’s set- point then press the TST> button on the front keyboard to scroll through the TEST values. Compare these values to those noted during the final factory checkout listed in Table 1.3. The values observed should closely match the Table 1.3 values.

P/N 02826B1 Teledyne API Model 450H O3 Monitor Instruction Manual - Page 15

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Contents MODEL 450H OZONE MONITOR EMAIL api-sales@teledyne.comPrinted 05/15/06 SAFETY MESSAGES 5.0 ADJUSTMENTS TABLE OF CONTENTS3.0 SETUP MODE 4.0 MAINTENANCEAPPENDIX A - ELECTRICAL SCHEMATIC INDEX 5.3 A/D - D/A CALIBRATION PROCEDURE…5.4 CURRENT LOOP CALIBRATION FIGURES TABLE 1.3 FINAL TEST AND CALIBRATION VALUES TABLESTABLE 1.1 DIGITAL OUTPUTS TABLE 1.2 CONTROL INPUTS1.1Preface 1.0INTRODUCTIONCOVERAGE 1.2 WARRANTY POLICYADVANCED POLLUTION INSTRUMENTATION DIVISION 02024c1.3 Principle of Operation Page 1.5 Installation 19” Rack Mount Enclosure 1.4 SpecificationsPage 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 1.6.2 Relay Outputs FIGURE 1.4 - ELECTRICAL SIGNAL I/O CONNECTIONS1.6Electrical I/O Connections 1.6.1Analog OutputDescription FIGURE 1.5 - CONNECTING DIGITAL OUTPUTS1.6.4 Control Inputs OutputZero Calibrate 1.6.5 RS232 OutputInput CONTROL INPUTSD C P O W E R SO FIGURE 1.6 - NEMA4X ASSEMBLY LAYOUTFIGURE 1.7 - M450H PNEUMATIC BLOCK DIAGRAM U V L A M P M O T H E R B V / F C P U A C L I N EPOWER SUPPLY MODULE Figure 1.8 - 19” Rack Assembly Layout1.7 Operation verification TABLE 1.3 FINAL TEST AND CALIBRATION VALUES 1.8.2 Isolated Current Output 4-20mAor 2-20mA 1.8.5 Flow Switch1.8 Options 1.8.1 Auto-ZeroOption2.0OPERATION 2.1Key features2.1.2 Concentration Alarms 2.1.4 E2 ROM backup of software configurationMode Field 2.2 Front Panel Display2.2.1 Front panel display fields FIGURE 2.1 - MODEL 450H FRONT PANELWarning Message Message/Test Measurement FieldTest Message TEST MEASUREMENTSState 2.3 Software Operation2.2.2 Status LED’s 2.3.1 Main MenuAudible Beeper 2.3.3 Alarm Status MenuFIGURE 2.3 - ALARM STATUS MENU Clearing AlarmsPage FIGURE 3.1 - SETUP MENU 3.0 SETUP MODEHI ALARM OFF 3.1 Setting the Concentration Alarms ALRM3.2 Setting the Concentration Units UNIT 3.3 Setting the time-of-dayand date CLK3.4 Setting the RS-232baud rate COMM 3 AZERO ENABLE 3.5 Setup variables VARS0 LATCH_ALARMS 1 ALARM BEEPER9 CONCENTRATION RANGE 8 GAS MOLECULAR WEIGHT10 TPC ENABLE 7 AZERO HOLD OFF3.5.3 Analog Output 3.5Diagnostics DIAG3.5.1Zero Calibration 3.5.2 D/A CalibrationFilter Replacement Procedure 4.0Maintenance4.2Cleaning Exterior Surfaces of the M450H 4.3 Cleaning the Optical Cell4.4 Degree of Protection FIGURE 4.1 MEASUREMENT CELL DISASSEMBLY5.2Changing the analog output range 5.0 ADJUSTMENTSSwitch Settings 5.1 Calibration5.3 A/D - D/A Calibration Procedure 1.Press SETUP-DIAGFIGURE 4.2- ANALOG OUTPUT JUMPERS 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 DESCRIPTION APPENDIX B - SPARE PARTS LISTPage APPENDIX C - ELECTRICAL SCHEMATIC INDEX Drawing NumberTitle