4.0
Performing an L2 Plus Test
4.1.2 Height Operating Mode Height mode is used when it is important to measure results based on the sample’s height or its change in height when a load is applied. A compression spring is an example where the height of the spring is important in order to determine the spring rate of the spring. In this application, load is applied and the load at individual setpoints based on height are measured and recorded. When your L2 Plus system uses height mode, you place the system into height mode by selecting the mode symbol. When in height mode, you will also see the Distance (D) indicator change to (H) representing the measured height during the test run. When using Height mode, the L2 Plus system must perform a datum pre-test function. The datum must be established in order for the system to be able to measure the height.
4.1 L2 Plus Test Modes of Operation Your L2 Plus advanced force measurement system has two modes of operation: standard and height. The default operating mode is standard mode. Both operating modes are discussed in detail in the following paragraphs.
Shows system in Standard (Normal) mode
4.1.1 Standard Operating Modes Most L2 Plus applications will operate in standard mode. Standard mode is also referred to as “normal mode”. Standard mode means that the measurements are taken from your Home position. From Home where the test sequence begins, load, distance, stress and strain are measured. Standard mode measures distance (D) and load (L) for the test steps used in your test setup. Your test steps will typically go to a load or to a distance at a specified crosshead velocity. In all standard mode L2 Plus test setups, you define your test sequence using Load and Distance. In the Controller view, L2 Plus software displays the load (L) and distance (D) for each test setup. When (D) is displayed, the system is in standard operation mode, also called normal mode. You can also tell if the system is in standard mode by looking at the test mode symbol in the header tool bar. When the crosshead is located mid-level showing two opposing arrows, the system is in standard mode. NOTE When you create your test setup, you must be in the mode you intended to perform the test in. You cannot create a test when the system is in Height mode (H) and then perform the test in standard mode (D).
Shows system in Height mode
4
Made with FlippingBook - professional solution for displaying marketing and sales documents online