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Original: Simple Water Level Indicator
http://www.circuitstoday.com/simple-water-level-idicatorFebruary - 28 - 2008
RECOVERED WATER LEVEL INDICATOR
This is another fun project. Drilling holes and running wires kept the women in the house wondering what I was up to!
Thin aluminum bare wire (hardware stores) was used as sensors. Insulation stripped from house wiring covers the wire inside the sensor tube (see photos). The wires terminate outside the tank with screw terminals spaced apart inside the tube. Computer network wire, CAT5e, connects the sensors to the monitor over my desk. This gives clear indication of the water level in the recovery tank. I use this water to fill a watering-can and water my hot peppers! The overflow was connected to another tank sitting on the ground. When we emptied this tank, we removed it and directed the water back to the basement sink. We’re getting too much water!
This project monitors condensation water. The condensation pump from the furnace/air conditioner pushes water through tubing to a 3-way valve. In the summer, the valve is set to allow water to flow into the holding tank. Winter, water is directed into a sink and down the drain.
©2013Lennie Zink
A closeup view of the pipes inside the tank shows small openings. The water enters slowly. This tank is not connected to down spouts. The short overflow line stops in mid air. It was connected to another tank.
The sensing wires exit the tube and are wrapped around the tube once at predetermined positions.
The CAT5e cable and water inlet line exit the brick wall through a weather electrical box. Inside the box is a CAT5e connector. It disconnects the line from the basement inside the box. The water hose has an inline barb terminating a few inches below.
We were amazed at how much water is taken out of the air!
The cement blocks under the tank are resting upon 2 more layers of blocks buried in the ground. I wanted this tank to be secure and not tip because of ground freeze and thaw. The tank is removed for the winter of course, but the blocks are not!
The outlet valve and bulkhead are 3/4”. This makes filling a watering-can quick, even at the low water level.
Hose barb prevents water from splashing on sensor wires
Overflow
In Sensorwires
RECOVERED WATER LEVEL INDICATOR
It’s just a rugged,plastic garbage can!Be sure to use a goodone. The rectangularoverflow can was acheap one. It looked like a pillow when full!
©2013Lennie Zink
SIMPLE WATERLEVEL INDICATOR V2
6V
AC
6V
AC
GND
F
ABCDE
Low
1/2
3/4
FULL
OVR
©2013LENNIE ZINK
SIMPLE WATERLEVEL INDICATOR V2
6VAC
6VAC
GND
F
A B C D E
Low
1/2
3/4
FULL
OVR
©2013LENNIE ZINK
Q12N4401
BE
C
R1220R
LED1LOW
Q22N4401
BE
C
LED21/2
Q32N4401
BE
C
LED33/4
Q42N4401
BE
C
LED4FULL
Q52N4401
BE
C
LED5OVER FLOW
6VAC
200mA
R2220R
R3220R
R4220R
R5220R
R622K
R722K
R822K
R922K
R1022K
R1220R
A B DC E
6.3 VAC200mA
TRANSFORMER
LOW 1/2 3/4 FULLOVERFLOW
AC AT WATER PROBES HELPSPREVENT CORROSION
(so I’m told)
F BROWNA BR/WB BLUEC BL/WD GREENE GRW ORANGE OR/W
R622K
R2220R
R3220R
R4220R
R5220R
Q12N4401
Q22N4401
Q32N4401
Q42N4401
Q52N4401
R722K
R822K
R922K
R1022K
CAT5e JACKS
F BROWN 1A BR/W 2B BLUE 3C BL/W 4
D GREEN 5E GRW 6
ORANGE 7 OR/W 8
F
RECOVERED WATER LEVEL INDICATOR
PARTSLAYOUT
BOTTOMVIEW
©2013Lennie Zink
HOBBYELECTRONICS
RECOVERED
WATER
LEVEL
MONITOR
POWERON
OFF
DRILL TEMPLATE & LABEL