Adjust The Grip Clamp Force; Handset Control; Handset Control Functions - MTS Systems Landmark 370 Series Product Information

A. Watch the speed at which the lower grip clamps and unclamps the specimen.
B. Adjust the Rate control counterclockwise for the desired speed.

Adjust the Grip Clamp Force

The pressure control adjusts the hydraulic pressure applied to the grips. The rate control adjusts the
grips' clamping speed. They must be adjusted before the grips can be used.
The amount of hydraulic pressure applied depends on the type of grips you are using and what you are
gripping. Use your grip manual to determine the correct hydraulic pressure before adjusting the force.
Experiment with a dummy specimen to find the best setting.
Note: The pressure control can adjust the grip pressure up to the maximum output pressure
setting (which is initially set by MTS Systems Corporation).
1. Ensure that both the upper grip control and lower grip control are in the unclamp position.
2. Turn on the electrical power at the test controller.
3. Turn on low or high hydraulic pressure.
4. If needed, move the crosshead or actuator so that the dummy specimen can be easily installed
in the lower grip.
Caution:
Grips are designed to operate within a range of hydraulic pressure.
Too much pressure can damage both the grips and the specimen.
Do not adjust grip pressure higher than the grip rating. To determine the correct
hydraulic pressure to apply to your grips before adjusting the Pressure control, see your
grip manual.
5. Adjust the pressure control for the desired hydraulic pressure.
6. If you exceed the desired pressure setting, adjust the Pressure control counterclockwise 1/2
turn. If the pressure setting exceeds 21 MPa (3000 psi), cycle (clamp and unclamp) one of the
grips. Return to Step 5.

Handset Control

The handset has an encoder and buttons to help you during specimen installation and test execution.
The handset also has an alphanumeric display and LEDs to provide feedback.
Note: While the actuator is in handset control, actuator speed is limited to <10 mm/sec.

Handset Control Functions

The handset is intended to be used for specimen loading or setup. In some applications, it can be used
to completely run a test.
MTS Landmark™ Tabletop Load Units - Product Information
Operation
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