Bindicator's patented phase Tracker technology is designed to solve the most challenging continuous level applications. Phase Tracker is ideal for the measurement of level of solids, liquids and slurries. phase Tracker can accurately and reliably measure the level of bulk solids and powders during the fill cycle, regardless of dust or material variations in density or moisture. It is effective in foam , non-air vapor, fumes,abrasives and corrosives, as well as corrugated bins and tall ,narrow silos.
A Phase Tracker system consists of a control unit and up to 24 sensors. The control unit is usually mounted in a central location and can be connected to external systems through a number of process connections including a telephone modem. The sensors are powered by the control unit and can be mounted up to 400'(121.9m) form the control unit. The exact options installed on each control unit are selected to match the needs of the installation. The model of each sensor is selected based on the range of products that will be stored in the vessel. Phase Tracker, however, employs a unique, patented method of extracting the time of flight rather than measuring the actual time delay
· Tank heights up to 130' (39.6m)
· Up to 24 vessels per control unit
· Dielectric constant 1.6 or greater
· Accurate level indication through vapor, foams,dust
· Intrinsically safe, CSA and CENELEC ratings
How the phase tracker™ works:
While it is often compared to Ultrasonic and Micro lmpulse Radar (MIR) technologies, Phase Tracker differs dramatically because it uses a unique principle of measurement that cannot be duplicated by other technologies.
A two conductor flexible or rigid sensor is suspended vertically in the vessel, extending its full length. A high frequency electrical signal is transmitted downward into the sensor, towards the surface of the product. A portion of the signal's energy is echoed at the product. A portion of the signal's energy is echoed at the material surface due to the abrupt impedance change at that point.Detector circuitry at the top of the tank measures the phase difference between the transmitted and echoed signals. The phase difference is a function of the distance traveled by the signal and is used to determine the level in the tank.
Phase Tracker benefits, as does radar, from the fixed velocity of electromagnetic signals which are not effected by the environment in the vessel. Phase Tracker, however, employs a unique, patented method of extracting the time of flight rather than measuring the actual time delay. This method has proven highly effective in level control. Unlike radar, phase Tracker avoids the complexity of resolving the extremely short sub-nanosecond time intervals required to generate useful level information with a signal traveling at the speed of light. A steady state low energy signal. at a frequency considerably lower than radar, is transmitted into the sensor. By slowly varying the signal frequency and simply observing the voltage variations at the input to the sensor caused by the simultaneous presence of the input and echoed signals. it is possible to get a very informative view into the vessel.