Install Flow Sensor
How do I install flow sensors on a MILNOR CBW?
DIRECTIONS FOR INSTALLATION OF PADDLE WHEEL FLOW SENSORS
REQUIRED PARTS
- flow meter 30F515
- Harness for adding power for new board
- connector saddle 30F520
- signal conditioner board 08BNDFST
- high speed 816 board 08BS816BHT
One each of these parts is required for each flow sensor installed.
REQUIRED TOOLS
- Variable speed drill to cut 1 7/16 hole
- Basic hand tools
PLACING THE FLOW SENSOR
See Figures 1 for instructions to select a location for the flow sensor. The piping that the flow meter mounts to must have fully developed turbulent flow (See Figure 3). For optimum performance, the flow sensor should mount to the pipe at an angle 45 degrees off of vertical (See Figure 2).
STEPS FOR INSTALLATION
1. Drill a 1 7/16" hole in the selected location on the pipe.
2. File the area around the hole to remove chips.
3. Insert the connector saddle, including the rubber gasket, into the hole and clamp it down tightly.
4. Insert the adapter and the flow sensor. Hand tighten the flow sensor to the holder. !!Do not use tools to tighten the sensor - Hand tighten only!!
Flow sensor cable will be wired to the signal conditioning board. The purpose of the board is to amplify the signal. This board will be wired to the 8/16 board of the nearest available CBW module. NOTE: If you are installing more than one flow sensor, each must be wired to separate 8/16 boards in adjacent CBW modules.
5. Mount the signal conditioning board near the 8/16 board to which you intend to run the input.
6. Connect the frequency out from the sensor (red wire) to pin #5 of MTA62.
7. Mount the frequency return (black wire) to pin #4 of MTA62.
8. Ground pins #3 and #4 to MTA62.
On the output of the signal conditioning board (MTA61),
9. Wire pins #9 and #10 to ground.
10. Wire MTA61 pins #3 and #4 to 5 volts positive.
11. Wire MTA61 pin #2 to MTA62 pin #6 on the 8/16 board.
CALIBRATING THE FLOW SENSOR
Water data is viewed on the F03 page in the let column "Fresh Water" heading of the module to which you have wired the sensor. The counts column and the total fresh water usage gallons should be counting.
You must enter an initial count per gallon figure in the L page of the Miltron. This count is temporary and will be replaced by the calculated figure that will be determined in the next few steps.
1. Go to the L page of the module to which the sensor is wired.
2. Press ESC twice.
3. Turn the key to program. The cursor will be on the left side of the screen above the bit number. This position is called "neutral."
4. Hit the BACKSPACE key and line feed to FR CPG.
5. Enter a figure from this chart:
Pipe Size
