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LIST OF ILLUSTRATIONS
FIGURE PAGE
1-1 Model 48C Flow Schematic................................................................................. 1-2
2-1 Model 48C Rear Panel ......................................................................................... 2-3
2-2 Atmospheric Dump Bypass plumbing ................................................................. 2-3
2-3 Shielded Cable with Shielding Pulled Back ........................................................ 2-4
2-4 Exploded View of Analog Output Cover Installation.......................................... 2-5
2-5 Properly Installed Shield Cable............................................................................ 2-6
3-1 Model 48C Front Panel........................................................................................ 3-1
3-2 Flowchart of Menu-Driven Software................................................................... 3-3
3-3 Pin-Out of Rear Panel Terminal Strip in Single Range Mode............................. 3-7
3-4 Pin-Out of Rear Panel Terminal Strip in Dual Range Mode ............................... 3-7
3-5 Pin-Out of Rear Panel Terminal Strip in Autorange Mode ................................. 3-8
3-6 Analog Output in Autorange Mode ..................................................................... 3-9
3-7 Location of Internal Option Switches ................................................................ 3-76
4-1 Calibration Flow schematic ................................................................................. 4-4
7-1 Properly Grounded Antistatic Wrist Strap ........................................................... 7-1
7-2 Model 48C Component Layout............................................................................ 7-3
7-3 Optical Bench (Exploded View).......................................................................... 7-5
7-4 Optical Bench....................................................................................................... 7-7
7-5 Pump Assembly Diagram .................................................................................. 7-10
9-1 Rack Mount Option Assembly............................................................................. 9-1
9-2 Model 48C Dimensional Outline......................................................................... 9-2
9-3 Rear Panel I/O Connector .................................................................................... 9-6
9-4 Remote I/O Zero Gas Mode Activation............................................................... 9-7
9-5 Remote I/O Span Gas Mode Activation .............................................................. 9-7
9-6 Instrument Status Output Relays.......................................................................... 9-8
9-7 Pin-Out of Rear Panel Terminal Strip with Optional Current Output ................. 9-9
9-8 Purge Housing Assembly................................................................................... 9-11
9-9 Instrument Handle Assembly............................................................................. 9-12
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