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8.8.4 CURRENT LOAD CELL The L1 software identifies the load cell sensor model that is connected to the test frame and that is communicating and controlled by the L1 tablet. You may use the drop down list to select a load cell model if you choose to have a specific load cell associated with this system or a particular test setup. 8.8.5 MAXIMUM LOAD ALLOWED The "Maximum load allowed" feature lets you limit the capacity of a connected load cell sensor by specifying the maximum load allowed. Using this limit can help minimize accidental overloads. If you are using a 100N load cell, and you specify the Max load allowed at 75%, the 100N load cell will measure between 0 and 75N. A test run will terminate if this load limit is exceeded. WARNING Avoid using high speeds, particularly in compression directions. 8.9 TESTS The Tests setting is used to specify how certain Test functions perform. These settings include the ability of the user to edit a locked test; the use of prefixes in the test name; test numbering, and how tests appear on the main Home Menu.
8.8.1 LOAD SIGN ASSIGNMENT The "Export with minus sign" function lets you specify how to designate a compression load using a negative sign. Tensile loads will have a positive sign (no sign actually shown), while compression loads will display a negative sign. Or, you may choose to reverse the sign so that tensile loads have a negative sign to distinguish them from a compression load (no sign). When the selection = Compression, compression results will be displayed with a negative sign. Tensile results will display without a sign. When the selection = Tension, tensile results will be displayed with a negative sign. Compressive results will display without a sign. 8.8.2 GRIP LOAD The Grip Load is a value that you enter to protect your test fixture (grip) from damage due to overloading or exceeding the load capacity of the test fixture. All test fixtures have a load capacity. This load capacity is the maximum load that the test fixture is rated to. Loads exceeding this capacity can permanent damage the test fixture. Often, the maximum capacity of the test fixture is below the maximum load capacity of the load cell sensor, therefore, the maximum load for a test setup should be the lowest rated capacity of the test fixture, load cell or test frame. The Grip Load setting allows you to enter a load capacity limit based on the testing fixture used. For example, you may have a 1000N load cell, but you are using a test fixture with a maximum testing capacity of 50N. In order to protect the test fixture, you can set the Grip Load to 50N. When 50N is reached, the test run will terminate and protect the test fixture. WARNING Excessive crosshead speed may make it impossible to stop in sufficient time to prevent an overload. Do not use high speeds, particularly in compression directions. NOTE 1. If Grip Load is set, a test run will abort if the measured load exceeds the Grip Load value you have entered. 2. The Grip Load value is sign dependent. If your compression sign is negative, you must enter the Grip Load value as a negative value if you intend to protect your test fixture with a load capacity limit in the compressive direction. 8.8.3 FRAME CAPACITY The Frame Capacity value is automatically displayed and represents the maximum allowed load capacity for the test frame your L1 System is configured with. This is a "read-only" value and is not adjusted. NOTE No tests may be performed beyond the Frame capacity.
Shown: TEST SETTINGS options
8.9.1 LOCKED TESTS Test setups may be locked by the creator. If the user has Test Authoring rights, and this setting = YES, the user can edit, copy or delete a test setup. If the setting = NO the user cannot edit, copy or delete a test setup. 8.9.2 TEST NAME PREFIX The Test Prefix Name option is useful if you want to have a common naming convention for the tests you create. For example, you may want to use the initials of the person who created the test in the naming convention for tests. Or, you may want to use the location/facility/lab that is associated with the test setup. When a Test Prefix Name is used, all test setups created will have this prefix name, followed by a number.
PKG08807 - UML1 51
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