Fpd Electrometer; Tcd Amplifier Assemblly; Replacing The Dtc Analog Pcb, V1 - ABB PGC5000 Series Service Instructions Manual

PGC5000
PGC5000 Series Service Instructions
6.8 Flame photometric detector electrometer
In the Class B oven, the FPD Electrometer is attached to inside of electronics compartment door (left side of oven) on the center
section of the door. In the Class C Oven, it is attached to inside of upper electronics compartment door (left side of oven), on
the upper section of the door.
Removal and replacement:
1. Remove cables using proper tools. If necessary, tag the cables to ensure they are returned to the correct places.
2. Remove the nuts on the left side of the assembly mounting plate.
3. Remove the nuts on the right side of the amplifier mounting plate.
4. Remove FPD Electrometer by sliding the mounting plate to the right.
5. Install replacement FPD Electrometer.
6. Reinstall all nuts and tighten.
7. Attach cables.
8. Test.
6.9 Thermal conductivity detector amplifier assembly
In the Class B Oven, the TCD Amplifier Assembly is attached to inside of electronics compartment door (left side of oven) on the
center section of the door. In the Class C Oven, it is attached to inside of the lower electronics compartment door (left side of
oven), on the upper section of the door. Dual Detectors are located on the upper section of the lower door.
Removal and replacement:
1. Remove cables using proper tools. If necessary, tag the cables to ensure they are returned to the correct places.
2. Remove the nuts at the left side of the assembly mounting plate.
3. Remove the nuts at the right side of the amplifier mounting plate and retain the ground lug for reinstallation.
4. Remove TCD Amplifier Assembly by sliding the mounting plate to the right.
5. Install replacement TCD Amplifier Assembly.
6. Install ground lug under nut at the right side of the assembly and install and tighten the nut.
7. Reinstall all other nuts and tighten.
8. Attach cables.
9. Test.
6.10 Replacing the dtc analog pcb, version 1
In the Class B Oven, the DTC Analog PCB is attached to inside of electronics compartment door (left side of oven) on the lower
section of the door. In the Class C Oven, it is attached to inside of the lower electronics compartment door (left side of oven),
on the lower section of the door.
Note cable routing and markings (locate Pin 1 on the cable).
Removal and replacement:
1. Remove zone cables (sensor and heater) using small standard screwdriver.
2. Loosen screw on Zone board connector and unplug board (if equipped).
3. Loosen and remove oven heater connection and master digital interface cable.
4. Remove power cable (note color coding on wires and their position).
5. Remove hex head screws attaching the heat sink from the outside of the oven door.
6. Remove the remaining hex head bolts on the inside of the door and set the board aside.
7. Apply thermal grease to the heat sink of the new board.
8. Loosely attach the board to the inside of the oven door using the hex head bolts.
9. Align and reattach the heat sink to the door from the outside.
10. Tighten inside screws.
11. Attach main power cable.
12. Carefully reinstall the master digital interface cable and oven heater connection.
13. Tighten screws to secure oven heater power connector.
14. Install zone board and tighten mounting screw.
15. Reinstall zone board cables and tighten screws to secure the connectors.
16. Test.
SI/PGC5000-EN, rev B
6 Component repair
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