The Bindicator® Yo-Yo® is a reliable continuous weight and cable level measurement system designed especially for dry bulk materials.
The new GP-4 Yo-Y0® lnventory Management System consists of the GP-4 Yo-Yo®Sensor and NEMA 4X Remote Display. The Mark-4 Yo-Yo is a heavy duty inventory management system with analog capabilities.
How the Yo-Yo® works:
The Bindicator® Yo-Yo® is an electromechanical device consisting of a sensor mounted on the top of a vessel.
The sensor contains a weight [A] suspended by a cable [B] with motion provided by a motor drive [C] and associated electronics.
The measurement cycle is initiated either on demand or on a timed interval and causes the sensor to lover the weight to the material level. As the weight is being lowered, the length of cable dispensed is measured in 0.1 ft(0.03m) increments.

When the weight reaches the material level, the unit reverses and the weight is drawn into the stored position in sensor. The distance measurement can then be transmitted via 4-20mA, voltage pulses, or RS-485 MODBUS.