3.3.1.4 Using an Extensometer Your L3 System may use up to two (2) extensometers. Extensometers connect to the back of the MMS or MMD test frame. Starrett supports Epsilon Technologies and Reliant Technologies extensometers. When these extensometers are connected, your L3 System will automatically sense the type and model extensometer connected including key characteristics such as Gauge Length, Measuring Range, Linearity, etc. When an extensometer is selected, a symbol appears on the L3 Header display. Select this symbol to view the extensometer’s characteristics. Listed beneath the symbol is the extensometer’s measuring range. When an extensometer is used, a symbol “E” is displayed along with the standard “L” (Load) and “D” (Distance) in the Controller view. The values displayed during a test for “E” represent the sample’s elongation measurement. When an extensometer is used, the Start/Stop function will also include a PAUSE function. During an active test run, you may select the Stop target to “pause” the test for the purposes of removing the extensometer prior to the sample breaking in order to protect the extensometer from damage. Once the Extensometer is removed, you may press the Stop Test PLAY function to resume the crosshead movement.
L3 Test Builder - Sample Definition Step An Epsilon Extensometer used on an L3 System
Select ANY, and any extensometer, that is connected to your L3 System, will be accepted and allow your test setup to perform.
Press to PAUSE your test run
Select EXACT, and the extensometer that is connected to your L3 System during the test setup is selected. The test run will not perform unless this “exact” extensometer is connected.
Press to PLAY or resume your paused test run
L3 Test with an Extensometer Select Exact to specify an exact model extensometer
L3 Test with an Extensometer connected Press Stop Test to Pause and Resume (Play) a test run
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