Nor-Cal STS-TTC Sample Platen - Manual (Page 4)

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Arm / Dock transfer:
The STS-TTC Series sample transfer system allows electrical information transfer for a type “K” thermocouple. The dock assembly employs
four metal fingers which grip tapered ramps (inserts) about the perimeter of the sample platen. Two of these ramps and correspondingly,
two of the fingers are manufactured from special materials (1 each set, Chromel and Alumel). It is necessary to install the platen in the cor-
rect orientation to maintain this electrical connection.
The end of the Alumel finger is notched. Correspondingly, the face of the platen has two small blind holes drilled next to the Alumel ramp.
Verify these two positions engage whenever the sample is transferred to the dock.
NOTE:
Alumel thermocouple alloy is slightly magnetic. Chromel is not. When replacing on-platen thermocouples, a small magnet will help in
verifying materials and their appropriate connection.
Adjustments
No adjustments, other than regular positioning requirements, are required in normal transfer operations.
The fingers of the transfer fork and dock have a small spring range. In use, if a finger inadvertently becomes bent, it can easily be corrected
in the field. Simply bend the finger back to a point almost in it’s original position. By hand, lock the sample platen on to the damaged
mount and carefully force lock the platen in place. This action should take slightly greater torque than normal transfer to accomplish. Re-
move the platen and verify the return of correct operation.
We at Nor-Cal Products have a large stake in your new equipment operating up to your expectations. If you experience difficulty with this
unit, or any other aspect of your endeavor where our experience might be of value, we want to hear from you. We want to be part of your
success.