Teledyne 450H 2.0OPERATION, 2.1Key features, 2.1.1 O3 readout, Concentration Alarms

Page 27

2.0OPERATION

2.1Key features

The important features of the Teledyne API Model 450H Ozone Monitor are listed below.

2.1.1 O3 readout

The Teledyne API Model 450H O3 Monitor constantly displays the current ozone reading (in units selected) in the upper right hand corner of the alphanumeric display.

2.1.2 Concentration Alarms

The Teledyne API O3 Monitor provides two concentration alarms, HI and HI-HI. The concentrations corresponding to each alarm levels can easily be set using the front panel interface. Two form C relays for the two alarm level are provided on the rear panel. In addition, the alarms can operate in either latching or non-latching modes.

2.1.3 O3 analog output

The M450H provides an analog output of the current ozone reading on the rear panel (see Figure 1.2). The output can be configured for 0-100mV, 0-1V, 0-5V, 0-10V. Isolated 4- 20mA or 2-20mA current output is available as an option. The voltage outputs are bi- polar and also provide for 20% over-range.

2.1.4 E2 ROM backup of software configuration

The Teledyne API O3 Monitor has few DIP switches or jumpers that need to be set by the operator. Configuration of the Monitor is done under software control and the configuration options are stored in electrically erasable (E2) ROM. Thus, configuration options are saved even when the Monitor is powered off.

There is one exception to this. The analog output voltage range is set by DIP Switches on the A/D-I/O board as shown in Section 5.2.

2.1.5 RS-232 interface

The Teledyne API O3 Monitor features an RS-232 interface which can output the instantaneous and/or average O3 data to another computer. It can also be used as a command and status channel to allow a computer to control the Monitor.

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 27

Image 27

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