1.6.5 RS232 Output, Control Inputs, Description | Teledyne 450H

	Input			Description

1				Zero Calibrate
2				Undefined (Spare)
3				Undefined (Spare)
4				Undefined (Spare)
5				Undefined (Spare)
6				Undefined (Spare)
			TABLE 1.2	CONTROL INPUTS

Zero Calibrate:

The zero calibration input is used to initiate zero calibration from an external device. This control input only functions when the instrument has been configured with the Auto-Zero option. To perform the Auto-Zero calibration using the control input, this input should be closed for at least 2 seconds and released. The instrument will then automaticall perform the zero calibration and return to normal monitoring afterwards.

See Section 3.5 for details on configuring the Auto-Zero feature.

1.6.5 RS232 Output

The RS232 output is provided on the 9-pin D-Sub connector shown in Figure 1.4. The RS232 output can be connected to a computer or serial printer. The RS232 output can be used to record alarm events with a time and date stamp or can be used to control the instrument’s operation remotely using a computer. Almost any function that can be done through the front panel interface can also be done remotely through the RS232 interface.

To use the RS232 for instrument control, all that is needed is a PC(personal computer) with an available serial communications port(COM port), a serial cable, and terminal emulation software. The serial cable must have a female DB-9 connector on one end and an appropriate connector on the other end to interface with the COM port on a PC.

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 21

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Teledyne 450H instruction manual 1.6.5 RS232 Output, Control Inputs, Zero Calibrate, Description

Contents

MODEL 450H OZONE MONITOR EMAIL api-sales@teledyne.comPrinted 05/15/06 SAFETY MESSAGES 3.0 SETUP MODE TABLE OF CONTENTS4.0 MAINTENANCE 5.0 ADJUSTMENTS APPENDIX A - ELECTRICAL SCHEMATIC INDEX 5.3 A/D - D/A CALIBRATION PROCEDURE…5.4 CURRENT LOOP CALIBRATION FIGURES TABLE 1.1 DIGITAL OUTPUTS TABLESTABLE 1.2 CONTROL INPUTS TABLE 1.3 FINAL TEST AND CALIBRATION VALUES 1.1Preface 1.0INTRODUCTION ADVANCED POLLUTION INSTRUMENTATION DIVISION 1.2 WARRANTY POLICY02024c COVERAGE 1.3 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 1.6Electrical I/O Connections FIGURE 1.4 - ELECTRICAL SIGNAL I/O CONNECTIONS1.6.1Analog Output 1.6.2 Relay Outputs 1.6.4 Control Inputs FIGURE 1.5 - CONNECTING DIGITAL OUTPUTSOutput Description Input 1.6.5 RS232 OutputCONTROL INPUTS Zero Calibrate FIGURE 1.7 - M450H PNEUMATIC BLOCK DIAGRAM FIGURE 1.6 - NEMA4X ASSEMBLY LAYOUTU V L A M P M O T H E R B V / F C P U A C L I N E D C P O W E R SO POWER SUPPLY MODULE Figure 1.8 - 19” Rack Assembly Layout 1.7 Operation verification TABLE 1.3 FINAL TEST AND CALIBRATION VALUES 1.8 Options 1.8.5 Flow Switch1.8.1 Auto-ZeroOption 1.8.2 Isolated Current Output 4-20mAor 2-20mA 2.1.2 Concentration Alarms 2.1Key features2.1.4 E2 ROM backup of software configuration 2.0OPERATION 2.2.1 Front panel display fields 2.2 Front Panel DisplayFIGURE 2.1 - MODEL 450H FRONT PANEL Mode Field Test Message Message/Test Measurement FieldTEST MEASUREMENTS Warning Message 2.2.2 Status LED’s 2.3 Software Operation2.3.1 Main Menu State FIGURE 2.3 - ALARM STATUS MENU 2.3.3 Alarm Status MenuClearing Alarms Audible BeeperPage FIGURE 3.1 - SETUP MENU 3.0 SETUP MODE 3.2 Setting the Concentration Units UNIT 3.1 Setting the Concentration Alarms ALRM3.3 Setting the time-of-dayand date CLK HI ALARM OFF 3.4 Setting the RS-232baud rate COMM 0 LATCH_ALARMS 3.5 Setup variables VARS1 ALARM BEEPER 3 AZERO ENABLE 10 TPC ENABLE 8 GAS MOLECULAR WEIGHT7 AZERO HOLD OFF 9 CONCENTRATION RANGE 3.5.1Zero Calibration 3.5Diagnostics DIAG3.5.2 D/A Calibration 3.5.3 Analog Output 4.2Cleaning Exterior Surfaces of the M450H 4.0Maintenance4.3 Cleaning the Optical Cell Filter Replacement Procedure 4.4 Degree of Protection FIGURE 4.1 MEASUREMENT CELL DISASSEMBLY Switch Settings 5.0 ADJUSTMENTS5.1 Calibration 5.2Changing the analog output range 5.3 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