DEVICE FOR AUTOMATIC CHECK OF FILLING THE RESERVOIR Russian patent published in 1996 - IPC

FIELD: measurement technology. SUBSTANCE: device has transformer 1 with primary and secondary windings, rectifiers 3 and 19, reservoir capacitor 4, limit resistor 6, guard electrode 5, high and low level electrodes 7 and 8, resistors 9, 10, 14 -17,22, noise immunity elements made in form of capacitors 12 and 13, self-balancing current leak potentiometer and transistors 20,21, measuring unit 11, voltage amplifier made in form of resistors 23 and 24, actuating relay 25. 4-6-23-24-2-19-18-4-3-2, 23-24-17-12-11-25, 24-16-13-11, 19-22-21, 19-20-16-13, 20-17-12, 7-9-12, 8-10-13, 5-14-12, 5-15-13, 4-14, 4-15. EFFECT: enhanced reliability. 1 dwg