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4.3.2.3 HOLD DURATION Use the Hold Duration when you are performing a constant distance hold test for creep and relaxation testing. You may specify a duration of up to 99,999 seconds. When a Hold Duration is specified, the Distance Limit test will finish once this duration has finished. The default value for the Hold Duration option is null. This means there is no hold at the limit. NOTE Long duration tests require a smaller sampling rate. The maximum number of data points that can be collected and saved is 100,000. Therefore, use a sampling rate of 1Hz for tests with a duration of 99,999 seconds. 4.3.2.4 TEST SPEED TheSpeedvalue is your test speed.This is the velocity youwant your crosshead to travel at from when you start your test to your Target Load setpoint. Speed units may be either in/min (inch per minute) or mm/min (millimeter per minute). You may specify the units of measure for speed using the Pre Test options. Your L1 System has a speed range from 0.001 to 40.0 inch per minute (0.02 to 1016 mm per minute). 4.3.2.5 EXCEPTIONS The optional exception rules for the Distance Limit test are: • Load • Break % and Minimum Break LOAD EXCEPTION Enter a Load value. If the measured load equals this value, and the distance limit has not been achieved, the test will stop. BREAK EXCEPTION Enter the % Drop value and Minimum Break value to define a break event. Requires entering a Minimum Break also. If a break condition occurs, before the load limit is measured, the test will stop.
4.3.2 DISTANCE LIMIT TEST The Distance Limit Test is used to measure and report the LOAD result at the Distance Limit. When you launch the Distance Limit test template, the test template menu has these basic attributes: • Type • Target Distance • Hold Duration • Speed
Shown: L1 DISTANCE LIMIT Test Method setup
4.3.2.1 TEST TYPE The Test Option launches with the Type = Tension. Tension means you want to perform a Pull test, e.g. you want the crosshead to move in an upward direction. If you want to perform a Compression test (also called a Push test),
Default and primary coefficients are automatically selected.
Data Step
change the Type to Compression. 4.3.2.2 TARGET DISTANCE
The Target Distance value is the distance limit setpoint. You want the crosshead to pull your sample until the measured distance = your specified Target Distance value. Distance units may be inches (in) or millimeters (mm). You may specify the units of measure for Distance using the Pre Test options. Enter numerical data using the keypad at the bottom of the display or using the keyboard supplied with your L1 tablet.
Select "+ Add Data..." to choose secondary coefficients from a List
Shown: L1 DISTANCE LIMIT Test Data setup
28 PKG08807 - UML1
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