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Delta Faucet DF-745 Figure 10: Block Diagram of Gas Flow Path with Optional Valvesand Aspirator

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Installation, Start Up and Shut Down DF-745 23

H O

REGULATOR

ADJUSTMENT

PROCESS INLET

BYPASS OUTLET

BYPASS FLOWMETER

BYPASS FLOW ADJUST

FLOW METER

REAR PANEL

FLOWSWITCH

(FRONT)

(REAR)

PI

.010 ORIFICE

V1

V2

80 psi IN

TO CREATE VACUUM

MOISTURE

SAMPLE VENT

ASPIRATOR WITH BUILT

IN VACUUM CONTROL

NEEDLE VALVE

MOISTURE SENSOR OUTLET

Figure 10: Block Diagram of Gas Flow Path with Optional Valvesand Aspirator

Contents

Main The Delta F Difference Read Me First Unpacking Procedure Installation and Maintenance Thank You 1 Table of Contents 1Table of Contents ....................................................................1 2Cautions....................................................................................7 3Specifications ..........................................................................9 4Installation, Start Up and Shut Down................................... 13 Page 1.1 Table of Figures Page Table of Tables Page 2Cautions 2.1 Symbols and Explanations 2.2 Important Warnings Page 3Specifications 3.1 Moisture 3.2 General Page Figure 1: Overall View Specifications DF-745 11 Page 4Installation, Start Up and Shut Down 4.1 Analyzer Installation 4.1.1 Vacuum Source 4.1.2 Pneumatic Pressure Line Connection -Optional 4.1.3 Sample Gas Connections See page 25 for information on the installation of the optional vacuum pump. REGULATOR ADJUST NOT USED Figure 5: Rear Gas Connections and Controls with Optional Gas Panel PROCESS INLET 4.1.4 Electrical Connections 4.1.5 Hydrogen Service Safety System NOT USED Figure 7: AC Power Connections with Optional Gas Panel ISOLATION GAS PANEL SHOWN AC INLET 4.2 Analyzer Start Up 4.2.1 Gas Delivery System 4.2.2 Gas Pressure and Flow Settings 4.2.3 Download System Data 4.3 Analyzer Shut Down Page Installation, Start Up and Shut Down DF-745 23 H O Figure 10: Block Diagram of Gas Flow Path with Optional Valvesand Aspirator PI V1 V2 Page 5Options 5.6.1 Installation of the Vacuum Pump Options DF-745 27 Figure 12: Vacuum Pump Mount Dimensions Figure 13: Vacuum Pump Dimensions 5.6.2 Moisture Sample Gas Outlet Connection to Vacuum Pump 5.6.3 Electrical Connections Options DF-745 29 PI H O Figure 15: Block Diagram of Gas Flow Path and Optional Vacuum Pump PI Figure 16: Block Diagram of Gas Flow Path with Optional Valves and Vacuum Pump V1 V2 H O Page 6Connecting to External Devices 6.1 Serial Communication Port J5 6.2 Analog Signal Outputs J4 6.3 4-20 mA Outputs J4 6.4 Relay Ports J8, J9 Page 7User Interface 7.1 Data Display Screen 7.2 Keypad EnterNextMenu ESC 7.3 Menu Structure 7.4 Main Menu 7.4.1 Isolate Analyzer Optional 7.4.2 Restore Sample Gas Flow Optional 7.4.3 Calibrate Menu Page Page Page 7.4.4 Data History Routine Page 7.4.5 Data Downloader Routine Page 7.4.6 View Logs Menu Page Page 7.4.7 Analyzer Setup Page Page Page Page Page 7.4.8 Analog Output Setup 7.4.9 Graph Setup 7.4.10 Diagnostics Menu Page Page Page Page Page Page 7.4.12 Power Up Default Optional 7.4.13 Date/Time 7.4.14 Communications 7.4.15 Download System Data Page 7.4.16 System Info Page 8Sample Gas Preparation and Delivery 8.1 Introduction 8.2 Sample Flow Rate and Pressure 8.3 Flow Rate Effects on Sensor Performance 8.4 Sample Gas Scale Factor Page 9Service 9.1 Return Material Authorization number 9.2 Maintenance 9.2.1 Storage Conditions 9.2.2 Moisture Cell Maintenance Page Service DF-745 73 9.3 Replaceable Parts List Table 8: Replaceable Parts List Page 9.4 Troubleshooting the DF745 NanoTrace Analyzer Shipping Page 10 Theory of Operation 10.1The Moisture Measurement 10.1.1 Moisture and the IR Spectrum 10.1.2 Absorption Spectroscopy 11 Safety 11.1General Warnings Page 12 Warranty Page 13 Index 4 A C D O P R S T Page Page Page Page 15 Appendix B Hydrogen Service Safety System 15.1 Instrument 15.2 Vacuum Pump 15.3 Installation 15.4 Operation Page Page Figure 85: Hydrogen Service Safety System Appendix B Hydrogen Service Safety System DF-745 93 Figure 86: Pump Purge Option 94 Appendix B Hydrogen Service Safety System