Particle size analyzer disperser

for powders

The Powder Disperser is a electronic control unit is used for stepless control of inductive loads such as spiral conveyors, linear conveyors and bunkers. In order to avoid unnecessary running times of the vibrating conveyor or a bunker and to protect the bulk material, a level control oriented to the material level is integrated. This level control system scans the material level via a sensor (eg initiator or forked light barrier) on the linear feeder and switches the feeder on and off at the end of the set delay times. The control unit works according to the phase angle principle, the adjustment of the delivery rate is achieved by setting the magnet voltage via the setpoint potentiometer built into the housing cover. The control curve of the setpoint voltage can be limited by two trim potentiometers Umin and Umax on the board so that always the entire range of the setpoint can be utilized. The firing pulses can be infinitely shifted in the range of the positive or negative mains voltage half-wave by the setpoint voltage which can be set with the desired value, as a result of which the voltage-time surface of the output voltage is set. For feeder units with 6000S / min oscillation frequency, both (positive and negative) mains voltage half-cycles are controlled, with feeder units with 3000S / min oscillation frequency only one mains voltage half-wave is controlled. Switching between full-wave and half-wave operation is standard with a slide switch on the board (see connection options).