Servo tank gauge operates using the principle of fluid displacement to provide continuous level measurement to an accuracy of ±1mm. A highly sensitive torque measurement system continually measures the effective weight of a displacer and maintains the displacer in equilibrium at the interface between different fluids. The displacer is suspended on a stainless steel wire and is raised or lowered from a wire drum housed in the Gauge Head.
The drum is driven by a servomotor control mechanism via a magnetic coupling, thereby reducing friction to a minimum and isolating the control mechanism from the servo tank gauge environment.
Servo tank gauge functions can be accessed locally by a pushbutton located on the Gauge Display Unit or remotely using servo tank gauge software such as MTG 5000 Inventory Management System. Servo tank gauge functions can be controlled either locally from the Gauge Display Unit or remotely from a host computer. Current data for Level, Temperature and Gauge Status are stored locally in the Gauge and can be retrieved by the host computer or displayed on the servo tank gauge Display Unit local to the Gauge head.
This article comes from scribd edit released