Figures
Thermo Fisher Scientific
Model 42
i
Trace Level Instruction Manual
xv
Figures
Figure 1–1.
Model 42
i
Trace Level Flow Schematic.......................................... 1-3
Figure 2–1.
Remove the Packing Material ......................................................... 2-2
Figure 2–2.
Model 42
i
Trace Level Rear Panel .................................................. 2-3
Figure 2–3.
Atmospheric Dump Bypass Plumbing ............................................. 2-3
Figure 2–4.
Twin-Head Vacuum Pump Installation............................................ 2-4
Figure 2–5.
I/O Terminal Board Views ............................................................... 2-6
Figure 2–6.
D/O Terminal Board Views.............................................................. 2-7
Figure 2–7.
25-Pin Terminal Board Views.......................................................... 2-8
Figure 3–1.
Front Panel Display.......................................................................... 3-2
Figure 3–2.
Front Panel Pushbuttons.................................................................. 3-2
Figure 3–3.
Flowchart of Menu-Driven Software .............................................. 3-5
Figure 3–4.
Pin-Out of Rear Panel Connector in Single Range Mode ............... 3-9
Figure 3–5.
Pin-Out of Rear Panel Connector in Dual Range Mode ................ 3-10
Figure 3–6.
Analog Output in Auto Range Mode............................................. 3-11
Figure 3–7.
Pin-Out of Rear Connector in Auto Range Mode.......................... 3-12
Figure 4–1.
GPT System...................................................................................... 4-3
Figure 5–1.
Inspecting and Replacing the Capillaries ....................................... 5-3
Figure 5–2.
Rebuilding the Pump........................................................................ 5-6
Figure 6–1.
Board-Level Connection Diagram - Common Electronics ............... 6-6
Figure 6–2.
Board-Level Connection Diagram - Measurement System ............ 6-7
Figure 7–1.
Properly Grounded Antistatic Wrist Strap ...................................... 7-4
Figure 7–2.
Component Layout........................................................................... 7-7
Figure 7–3.
Removing the Measurement Bench and Lowering the Partition
Panel ..................................................................................................................... 7-8
Figure 7–4.
Replacing the Pump....................................................................... 7-10
Figure 7–5.
Vacuum Pump – Head Plate and Motor View .............................. 7-13
Figure 7–6.
Replacing the Fan .......................................................................... 7-14
Figure 7–7.
PMT Cooler and Reaction Chamber .............................................. 7-16
Figure 7–8.
Replacing the PMT ........................................................................ 7-17
Figure 7–9.
Replacing the PMT HVPS .............................................................. 7-19
Figure 7–10.
Cleaning or Removing the Reaction Chamber ............................ 7-21
Figure 7–11.
NO
2
-to-NO Molybdenum Converter Assembly ........................... 7-23
Figure 7–12.
Replacing the Solenoid Valve ..................................................... 7-24
Figure 7–13.
Replacing the Ozonator Assembly .............................................. 7-26
Figure 7–14.
Replacing the Input Board........................................................... 7-28
Figure 7–15.
Replacing the DC Power Supply.................................................. 7-30
