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Figure 1 Morehouse Quick Change Tension Member System.




I am about to tell you a little bit about our calibration adapter history and what we have been working on to simplify your life when it comes to calibrating multiple force instrument types. We have a Bulletin 271-18 that has well over 100 different configurations of adapters for tension force calibrations. These adapters range from tension members for load cells to various types of clevis assemblies for all types of dynamometers and tension links. This large variety came about from forty-plus years of engineering where a new adapter needed designed every time a customer required a set of tension adapters to calibrate a tension instrument where we had not made an existing adapter. Around 2011, we started thinking there has to be something better. The principal influence of the concept came from by several lean manufacturing courses I had taken and the new ISO 376:2011; Calibration of force-proving instruments used for verification of uniaxial testing machines. The first iteration of the Quick-Change adapter was engineered and made for load cell calibration. It was relatively simple to take what ISO 376:2011 recommended for adapters and make a tension member assembly with various adapters for the different load cell sizes.