Page 3 [email protected] Internal Circuit Diagrams 61F-GP-N/-NT/-NL/-ND 61F-GP-NH 61F-GP-NR Power supply Power supply Power supply Control circuit Control circuit Control circuit 24 V 24 V 24 V (See note.) (See note.) Note: When applying a self-holding circuit, short between terminals 5 and 6 and use terminal 7 as E...

Here is a tested Arduino project that uses 3 sensor probes as water level indicator with 3 leds and one LCD display + a simple controller that turns on a motor when the water has reached the desired level (the highest in our case). You can use only the leds if you want, the lcd is optional. Check out the schematic, prototype and video below May 13, 2012 · Automatic water tank level controller motor driver circuit- Engineering project without Microcontroller Gallery of Electronic Circuits and projects, providing lot of DIY circuit diagrams, Robotics & Microcontroller Projects, Electronic development tools