Constant-area parallel-plate viscometer (improved model) No.2287

This is a high precision constant-area viscometer free of defects causing errors with the conventional glas-plate falling type viscometer. It uses a stainless steel rod instead of glass plate, with the support housing that holds the rod vertically, and the measurement table to receive the specimen. In measurement, the rod is dropped from a certain height, to read the change in ink thickness by a differential transformer, and the read value is converted to yield value by the formula. The temperature of the rod support housing and measurement table is kept constant by the jacket configuration in which hot water is circulated from the constant water temperature tank.