Owner's manual

Series 322 Load Unit Operation
51
Operation
Load Unit: Operation Preface
This section describes the load unit controls, crush point hazards, and procedures
performed during the normal, day-to-day operation of the load unit.
Application note Special considerations must be followed when using low force transducers in a
high force systems. Small force transducers are commonly used in larger
systems. You need to be aware that the load unit can produce forces that exceed
the rating of the low force transducer.
Low force transducers in high force systems can be exposed to excessive
forces.
Applying forces that exceed the rated capacity of the force transducer can
damage the transducer.
Ensure that all test commands are within the force transducer’s rating when it is
installed. Your warranty does not cover damage caused by a high force actuator.
MTS recommends the following:
• Position the crosshead so that fixtures cannot touch each other when the
actuator is fully extended. This may not always be feasible at all times, but it
should be practiced whenever possible.
• Use force limits. Force limits can help in some instances but might not stop
the actuator fast enough in all situations.
• Ensure that you have selected the correct calibration for the transducer being
used. Also ensure that the system tuning has been optimized for the
transducer being used.
CAUTION