Calculating Calibration and Measurement Capability (CMC) Using the ASTM Lower Limit Factor (LLF) In accordance with the ASTM E74 standard, Morehouse reports the ASTM Lower Limit Factor (LLF), which is reported on page one of the calibration certificate and is not uncertainty. ASTM E74-06 used to call LLF the uncertainty. The ASTM E74-06 standard was […]
Important Force Measurement Error - Thread Loading In Compression - Intro It is important to remember that not all calibration laboratories provide the same type of calibration service. For load cells calibrated in compression, there may be a noticeable difference in output. The output is dependent on the calibration fixtures used at the time of […]
Point of Use to Save Time Morehouse 10 MN UCM Have you ever noticed a technician running around your facility asking, “Does anyone have a 5/32-inch Allen wrench?” Well, if you are reading this and you are not in the United States, Liberia, or Burma, the 5/32-inch may not make much sense. Didn’t the US […]
Unbolting Load Cells May Not Produce Repeatable Calibration Results Unbolting Load Cells might be common practice, though the errors associated with this practice can be quite high. This article discusses ways to minimize these errors regarding unbolting load cells. Bolting a Load Cell Thread Class and Torque Applied • Morehouse recommends bolting a load cell to […]
How to Convert Weights to Force Standards The mass of a body relates to the amount of material it contains. Forces are defined by Newton's second law of motion as expressed in the equation: F = ma Since it is impractical to make an accurate determination of force directly from this equation - at least as a […]
