Specifications

CONTENTS
748414-A
August 1999
v
Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
F
IGURES
Figure 1-1. Flame Ionization Detection Technology ........................................3
Figure 1-2. HFID Analyzer Module - Top View ..............................................4
Figure 2-1. Back Panel Connections ...............................................................7
Figure 2-2. Flow Diagram ................................................................................10
Figure 2-3. Front Panel Electrical Connections ...............................................11
Figure 2-4. Front Panel Connections, Controls and Indicators........................11
Figure 2-5. HFID Outline and Mounting Dimensions .......................................12
Figure 2-6. HFID Wiring Diagram ....................................................................13
Figure 3-1. Typical Curves of Module Response vs. Pressure Setting on Fuel
Pressure Regulator .......................................................................25
Figure 3-2. Typical Curves of Module Response vs. Pressure Setting on Air
Pressure Regulator .......................................................................25
Figure 3-3. Front Panel Torquing Sequence ...................................................27
Figure 4-1. Removal of Cover and Insulation Shield .......................................27
Figure 4-2. Locations of Major Assemblies of the HFID ..................................28
Figure 4-3. Removal of Oven from Chassis.....................................................29
Figure 4-4. Oven Assembly .............................................................................31
Figure 4-5. Burner - Sensor, Flameout Detector, RTD Detector and Ignitor...........33
Figure 4-6. Burner/Thermal Block Disassembly ..............................................34
Figure4-7. Burner Disassembly ......................................................................35
Figure 4-8. Burner Jets....................................................................................36
Figure 4-9. Thermal Block – Sample RTD, Cartridge Heater and Thermostat 38
Figure 4-10. Thermal Block Assembly...............................................................40
Figure 4-11. Removing Electronics Assembly from Chassis .............................41
Figure 4-12. Electronics Assembly – Exploded View.........................................42
Figure 4-13. Case Sensor Installation ...............................................................43
Figure 4-14. Case Pressure Purge Switch Installation ......................................44
Figure 4-15. Preamp Assembly Installation.......................................................45
Figure 4-16. Fan Assembly Installation .............................................................46
Figure 4-17. Flow Controller Replacement........................................................47
Figure 4-18. Flow Controller Assembly..............................................................48
Figure 4-19. DC Power Supply Module Replacement .......................................49
Figure 4-20. Front Panel – Exploded View........................................................50
Figure 4-21. Accessing Front Panel Components.............................................51
Figure 4-22. Rear Panel Components...............................................................55