Multi Pro 5700 - Toro

Sonic Sensor
Two (2) identical sonic sensors are used in the Sonic
Boom System. The sensors are mounted to the spray
booms (Fig. 13). During sprayer operation with the sonic
mode switch in the automatic position, the sonic sensors
will provide inputs for the electronic control unit (ECU)
to keep the booms at a constant distance from the
ground.
During sprayer operation, the sonic boom sensor continually
sends an impulse signal and then receives an
echo as the signal bounces off the turf. The ECU establishes
the sensor distance from the ground based on the
time between the sensor signal generation and the received
echo. The ECU then determines if the boom
height is different than the calibrated height and, if necessary,
energizes the appropriate boom actuator to
change the boom height.
Sensors and protection tubes should be rotated above
parallel with the ground for proper sonic sensor operation.
Refer to the Sonic Boom Kit Installation Instructions
for sonic sensor setup information.
8
1. Sonic sensor
2. Sensor bracket
3. Screw (2 used)
4. Protection tube
5. U -bolt (4 used)
6. Lock nut (8 used)
7. Sensor cover
5
6
7
4
9 10
Figure 13
8. Spray boom (RH shown)
9. Lock washer (2 used)
10. Nut (2 used)
11. Foam sensor filter
12. Sensor shield
13. Patch
3
11
1
2
13
12
Sonic Boom
System
The sonic sensor includes a LED that should be illuminated
during sprayer operation regardless of whether
the sonic mode switch is in manual or automatic mode.
The intensity of the LED can be used to assure that the
sensor is properly adjusted on the spray boom.
The sonic sensors and their circuit wiring can be tested
as ECU inputs with the Diagnostic Display (see Diagnostic
Display in the Troubleshooting section of this
chapter). Because of the solid state circuitry built into the
sensors, there is no method to test them directly. The
sensors may be damaged if an attempt is made to test
them with an electrical test device (e.g. digital multimeter
or test light)
IMPORTANT: Do not spray water at or on the sensors.
Water sprayed under even household pressure
can damage the sensor. Always install sensor
cover (item 7) on sensor before washing the sprayer.
Also, install cover when sprayer is not in use.
As required, use a damp cloth to clean the sensors.
Make sure that the sensor covers (item 7) are clean and
dry before installing them on sensors.
The patch (item 13) that is adhered to the sensor is designed
to allow moisture to escape from inside the sensor
housing. The patch should be replaced if it is
deteriorated or has loosened from the sensor.
Inspect the foam sensor filter (item 11) for damage or excessive
debris buildup. Replace filter if necessary.
Multi Pro 5700--D Page 7.1 - 25 Sonic Boom System (Optional Kit)