Controller board for a dental suction vacuum pump system using a 24 V low-voltage control board, VFD motor drive interface, 4–20 mA vacuum sensing, float/temperature safety inputs, solenoid flush outp... show moreController board for a dental suction vacuum pump system using a 24 V low-voltage control board, VFD motor drive interface, 4–20 mA vacuum sensing, float/temperature safety inputs, solenoid flush...