World Class 3000
Instruction Manual
Appendix A Rev. 3.8
July 2002
A
d.Use a pencil to mark locations of spring clip on ceramic rod, Figure
e.Pry or squeeze tabs on spring clips, and pull contact and thermocouple assembly out of probe assembly. Retain spring clips and spring; replace if damaged.
Be very careful when handling contact and thermocouple assembly. The ce- ramic rod in this assembly is fragile.
f.While very carefully handling new contact and thermocouple assembly, lay old as- sembly next to new one. Transfer pencil marks to new rod.
CONTACT AND | HEATER SCREWS | |
(NOT SHOWN) | ||
THERMOCOUPLER | ||
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ASSEMBLY |
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MOUNTING SCREW | ||
(REAR VIEW) | ||
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HEATER
CERAMIC ROD
INSULATING SPRING
GASKET CLIP
21240010
Figure A-22. Inner Probe Replacement (Heater, V-Strut, and Backplate Assembly)
g.Note wire lengths of old assembly as an aid for trimming new lengths in step (j). Trim- ming of wires will not always be necessary. Throw away old contact and thermocouple assembly.
h.Carefully guide new contact and thermo- couple assembly through
i.Reinstall insulating gasket on backplate, re- place two screws,
Do not trim new wiring shorter than existing (old) wiring. Excessive wire trim will prevent connections from being properly made and will require a new replacement kit.
j.Trim wires, if necessary, as noted in step (g).
k.Connect color coded wires to proper termi- nals as shown in Figure
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1. | Heater Ceramic Rod |
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| 5. | Ring Lug |
| 9. | Spring | |
2. | Contact and Thermocouple Assembly | 6. | Butt Connector | 10. | Spring Clip Assembly | ||||
3. | Strut |
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| 7. | Extension |
| 11. | Common Tube Support | |
4. | Leaf Spring |
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| 8. | Backplate |
| 12. | Heater | |
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| 13. | Short Tube Support |
Figure A-23. Heater, Strut, and Backplate Assembly
(Inner Probe Assembly)
Rosemount Analytical Inc. A Division of Emerson Process Management | Appendices |