MTS Axial Extensometers - Manual (Page 35)

Configuration 35
8. If necessary, use a small adjustable wrench to grasp the sides of one
extensometer arm or attachment adapter (see the figure in Step 2).
9. While securely holding the extensometer arm or attachment
adapter, fully tighten the socket head cap screws in that arm with a
hex wrench.
10. Repeat Step 8 and Step 9 to tighten the socket head cap screws in
the other extensometer arm.
About Gage Lengths
The gage length of an extensometer can be changed by installing gage
length extenders or gage length de-extenders. Changing the gage length
does not change the travel of the extensometer.
How to Use Gage Length Extenders
Gage length extenders let you change where the extensometer contacts
the specimen. The following figure shows several of the most common
methods to install gage length extenders.
m
MODEL
xxx.xxx-xx
m
MODEL
xxx.xxx-xx
m
MODEL
xxx.xxx-xx
Some extenders
are mounted from
the top.
Clamp
Some extenders
are mounted from
the top and the
bottom.
Quick Attachment Adapter
(only needed if the quick
attachment spring is to be
used)
Extender
Knife Edge
Cap Screw
Hold-Down