Cannon Instrument CAV-2000 - Manual (Page 141)

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CANNON ® Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO ® Instruction & Operation Manual
Version 2g — May, 2009; CANNON ® Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
CHAPTER
A
APPENDIX A–REPLACING THE
CAV-2200 THERMOMETER
This application describes the procedure for replacing the CAV-2200
thermometer.
Tools required
0.05" Allen wrench • Phillips screwdriver
Procedural overview
To replace components you will:
• gain access to the bath vessel and other internal components by remov-
ing the top panels of the CAV-2200 bath.
• remove and replace components as necessary.
• reassemble the bath.
It is not necessary to drain the CAV-2200 bath to complete this proce-
dure.
Disassembly/removal procedure
1. Exit the VISCPRO controlling software. Remove power from the
CAV-2200 and allow the bath(s) to cool below 50°C. Unplug the unit
from the mains power source.
2. Using the Phillips screwdriver, remove the screws securing the top
panels of the CAV-2200 to the Bath Unit frame. Then remove the
panels.
3. Locate the thermometer holder assembly, which is inserted through
the top bath flange.
4. Lift the entire assembly clear of the bath and wipe excess silicone
fluid from assembly components.
5. Carefully remove the thermometer tube top plug, which is held in
place by friction between the plug O-rings and the outer tube ther-
mometer holder. Slide the thermometer free of the holder.
6. Loosen the two opposing 0.05" Allen screws securing the thermom-
eter adaptor plate to the connector on the thermometer wire cable.
Thermometer top plug