MTS Insight Material Testing Systems - Manual (Page 55)

Travel Limit Switches (Physical Limits)
MTS Insight™ Material Testing System Operation 55
Travel Limit Switches (Physical Limits)
The limit switches are located on the crosshead. They are normally closed and
are activated when the limit switch contacts the adjustable limit rod. The
adjustable limit rod can be positioned anywhere along the range of travel to
prevent the crosshead from traveling beyond that point.
Note Always adjust the limits whenever you change grips or fixtures.
Take into consideration the size of the grips, any attachment fixtures, and the
specimen when determining the position of the limit switches. Limit switches
should be positioned to stop crosshead travel before personal injury or damage to
the specimen or equipment can occur.
Adjustment of the limit switches are similar for both types of machine. The limit
switches are held in position by a locking screw. To set the limit switch, unlock
by turning the locking screw in an counterclockwise direction and slide to the
required new position. Before locking, allow for the limit switch striker being in
the middle of the crosshead for the single screw machine and at the bottom of the
crosshead for the twin screw machines. To lock limit switch, rotate locking screw
in a clockwise direction. To eliminate slippage tighten locking screw securely.
1 - 2 kN 2 EL HS and
5 - 300 kN
Limit Switch
Adjustments