Calibrating The Flowmeter; Testing The Flowmeter Cable - Toro Pro Control XP Operator's Manual

3. Press the [Time] key. The display shows DAY.
4. Press the [Enter] key to change the day.
5. Press the [Time] key.
The display shows YEAR.
6. Press the [Enter] key to change the year.
7. Press the [Time] key.
The display shows POWER DOWN DAY.

Calibrating the Flowmeter

Service Interval: Yearly—Calibrate the flowmeter.
1. Press the [Meter Cal] key.
2. Press the [Enter] key.
3. Enter the Meter Cal number.
Note: The Meter Cal (or flowmeter) calibration
number is stamped on the tag attached to the
flowmeter or meter cable (Figure 10).
4. Press the [Enter] key.
5. Press the [Total Volume] key.
6. Press the [Enter] key.
7. Enter 0.
8. Press the [Enter] key.
9. Fill the tank with a predetermined amount of water.
Note: For best results, measure the water using
an independent method. For the best accuracy,
determine the amount of water ahead of time so that
the applicator tank is full.
10. Empty the tank by boom spraying under normal
conditions.
Note: The vehicle does not need to be in motion to
perform this step, but you must enter a test speed.
11. After emptying the water from the tank, check the
Total Volume number. This number should equal
the predetermined amount of water. If it does not,
calculate the Meter Cal number using the formula
that follows. Under normal conditions, the Meter
Cal number should be within +/– 3% of the number
stamped on the tag of the flowmeter.
See the example below:
Meter Cal (from tag) = 1660
Total Volume = 103
Amount of water = 100
Corrected Meter Cal = (Meter Cal x Total Volume) /
Amount of Water
Corrected Meter Cal = (1660 x 103) /100
Corrected Meter Cal = 1710.
Note: Repeat this procedure several times to confirm
that the corrected Meter Cal number is accurate.

Testing the Flowmeter Cable

1. Disconnect the console control cable from the
flowmeter cable.
2. Hold the cable so that the keyway is in the 12 o'
clock position (Fig. Figure 12).
4
3
1. Keyway
2. Ground (2 o'clock position) 4. Power (10 o'clock position)
3. Enter a Meter Cal number; refer to Entering the
Meter Cal Number in the Operation section.
4. Press the [Total Volume] key.
5. Turn the Pump, Foot, and Boom switches to the On
position.
6. Use a small jumper wire or a paper clip to create a
short between the 2 o'clock and 6 o'clock sockets.
Note: Each time you make contact, the Total
Volume should increase by 1 or more counts.
7. If the Total Volume number does not increase,
replace the defective cable.
8. Perform the voltage checks: 2 o'clock to 6 o'clock
(+5 VDC); and 2 o'clock to 10 o'clock (+5 VDC).
9. If all the cables are good, replace the flow sensor.
Note: After testing the flowmeter cables, enter the
correct Meter Cal number before spraying.
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G013306
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Figure 12
3. Signal (6 o'clock position)