ROMTEK DC Speed Control System is built
around a permanent magnet DC Motor and an optical pick-up and a slotted disk to measure
the speed of the motor for feed back control. A 4 digit display driven from a Frequency
Counter controlled by Crystal Oscillator gives the RPM of the motor. A frequency to volt
converter circuit generates the feed back signal. Variable loading of the motor is by
using electrical means instead of friction brake.
Motor : 0-3000 RPM, 5 Watt, approx.
Pick-up : Optical type with slotted disk.
Speed Display : 0-9999 RPM.
Braking : Electrical braking for smooth working.
DVM : 3½ digit given on the equipment.
Feed Back : Electronic.
Operating Power : 230 V AC.