Patent ID: 8334787
Filing Date: 2012-12-18
Classification: G01D,G01F,Y02B,Y04S

Abstract:
1. A method for retrofitting a mechanical meter having a meter shaft driven dial assembly comprising at least one index dial pointer and an index cover having a transparent portion for observing the index dial pointer, the method comprising: removing the index cover to permit access to the index dial pointer; attaching a magnet to the index dial pointer so that it is carried in an orbit around a dial pointer shaft to which the index dial pointer is attached; and mounting a replacement index cover having a sensor disposed therein or on a surface thereof to the meter, the sensor when installed being adapted to sense the passage of the index dial pointer mounted magnet and to detect at least a partial orbit of the index dial pointer; wherein the attaching of the magnet and the mounting of the sensor are performed without removing the meter shaft driven dial assembly from the meter.