A torque wrench should be able to deliver precise torque and should be appropriately calibrated and maintained regularly to ensure optimal performance.
The TWC Torque Wrench Calibrator is a compact digital test instrument that has been specifically designed to measure the torque settings on standard 'beam,' 'click' and 'break-over' wrenches.
The torque wrench can be mounted on any workbench, and its torque sensor is equipped with a convenient square drive that facilitates the connection of common adaptors.
The backlit digital display records both the 'live running torque' and the 'peak torque' in all common units (N.m, lbf.in, lbf.ft, kgf.cm, etc.) and is easy to read.
A click wrench is engineered to make an audible clicking noise and a slight movement when it hits its pre-set torque limit. It is important for the operator to avoid exerting too much force; pulling too far can cause the wrench to reach a solid stop, leading to excessive torque and the risk of overtightening the fastener.
The 'first-peak' function of the TWC enables 'click' and 'break-over' type wrenches to be accurately measured by detecting the torque at which the wrench clicks and slips, even if the operator inadvertently pulls too far.
The proper calibration of a torque wrench typically involves taking multiple test readings across various ranges of its capacity. This usually includes conducting five readings each at 20%, 60%, and 100% of the wrench's maximum capacity.
Once each test is completed, the results can be sent via RS232 to a printer or PC to record the true calibrated setting of the torque wrench.