Campbell Scientific ST350 Strain Transducer for Structural Testing - Manual (Page 36)

Appendix A. Special Instructions for using ST350
from gage is used, the measurement from the hole closest to the cable exit
to this hole is 24 inches. The next hole down the extension is 21 inches
and so on. Using the tab jig, insert a tab into one of the slots and in the
other the Extension Alignment Tab as seen below in FIGURE A-4. Insert
the Tab into the hole marked with the desired gage length and the
Extension Alignment Tab in to the hole next to it (see FIGURE A-5).
Screw on a 1/4-20 nut onto the tab and tighten to a torque of 50 in-lbs.
Compress assembly this way before tightening
FIGURE A-3. Picture Compressing ST350 for Mounting Purposes
Extension Alignment Tab Tab
FIGURE A-4. Extension Alignment Tab
Desired Gage Length
FIGURE A-5. Desired Gage Length
A-4