Description

The Classic Series 100 proving rings is the forerunner of the entire current series of Morehouse proving rings. It is perhaps the most widely used and respected proving ring in the world. It has been the field calibration standard preferred by many experienced operators for more than 40 years-and most of the original rings are still in use. The series 100 proving ring offers all the accuracy, reliability and consistency ever needed for many force calibrations. It is recommended for calibrating materials testing machines, torque-measuring dynamometers, thrust stands and other force measuring systems. The micrometer dial is read with a single index line pointer. However, a vernier index pointer is available as an optional accessory. All capacities are available in compression types and combination compression/ tension types with threaded external bosses to which pulling rods may be attached for use in tension calibrations.