Raven SCS 340 Manual
SCS 340
INSTALLATION
AND
SERVICE MANUAL
N O T I C E
The use of the suspension type fertilizers and lime slurries will
significantly reduce the life of the plastic parts in the Flow
Meter and motorized Control Valve. Check the rotor and inlet hub
assembly in the Flow Meter frequently for worn parts. Excessive
wear can affect accuracy.
Do not attempt to modify or lengthen any of the three-wire Speed
Sensor or Flow Meter cables. Extension cables are available from
your Dealer.
Manual Rev. A, SCS 340, 7-98
Order: 50, 7-98, #016-0159-745
1
TABLE OF CONTENTS
SYMBOL DEFINITION .............................................................................................................................................. 2
INTRODUCTION....................................................................................................................................................... 3
INSTALLATION ......................................................................................................................................................... 4
1. MOUNTING THE RAVEN RADAR SPEED SENSOR ............................ 4
2. MOUNTING THE FLOW METER .......................................... 5
3. MOUNTING THE CONTROL VALVE ....................................... 5
4. MOUNTING THE CONSOLE AND CABLING ................................. 6
BATTERY CONNECTIONS...................................................................................................................................... 7
CONSOLE FEATURES ............................................................................................................................................ 8
CONSOLE CALIBRATION ....................................................................................................................................... 9
1. CALCULATING "BOOM CAL" ........................................... 9
2. CALCULATING "SPEED CAL" ......................................... 10
3. CALCULATING "METER CAL" ......................................... 11
4. CALCULATING "VALVE CAL" ......................................... 11
5. CALCULATING "RATE CAL" .......................................... 12
CONSOLE PROGRAMMING ................................................................................................................................. 13
1. INITIAL CONSOLE PROGRAMMING ..................................... 14
2. OTHER DISPLAY FEATURES .......................................... 16
3. SELF TEST FEATURE ............................................... 17
4. ALARM MENU ...................................................... 17
5. OFF TARGET ALARM ................................................ 17
6. AUTOMATIC RATE +/- .............................................. 18
7. LOW LIMIT FLOW SET POINT AND LOW LIMIT ALARM ................... 18
8. DISPLAY SMOOTHING ............................................... 18
9. "VALVE CAL" ..................................................... 19
10. CONTROL VALVE DELAY ............................................. 19
11. SEQUENCE TO ACTIVATE DATA-LOCK .................................. 19
12. SEQUENCE TO CHANGE DATA-LOCK .................................... 19
13. ENTER MODE SEQUENCE WITH ACTIVATED DATA-LOCK ................... 20
INITIAL SYSTEM SET-UP ...................................................................................................................................... 20
INITIAL SYSTEM FIELD TEST............................................................................................................................... 21
PREVENTIVE MAINTENANCE.............................................................................................................................. 21
APPENDIXES
1. WHEEL DRIVE SPEED SENSOR INSTALLATION AND CALIBRATION ....................................................... 22
2. SPEEDOMETER DRIVE SPEED SENSOR INSTALLATION AND CALIBRATION ........................................ 25
3. ALTERNATE BY-PASS LINE PLUMBING SYSTEM......................................................................................... 27
4. PROCEDURE TO TEST SPEED SENSOR EXTENSION CABLES................................................................. 29
5. PROCEDURE TO TEST FLOW METER CABLES ........................................................................................... 30
6. FLOW METER MAINTENANCE AND ADJUSTMENT PROCEDURE............................................................. 31
7. PROCEDURE TO RE-CALIBRATE FLOW METER .........................................................................................32
8. REMOTE SWITCH OPTION .............................................................................................................................. 33
9. HIDDEN FEATURES .......................................................................................................................................... 34
REPLACEMENT PARTS SHEETS
016-0159-745
7/98
2
SYMBOL DEFINITION
METER CAL CONVERSIONS
To convert the METER CAL number simply divide the original number (number printed on
Flow Meter label) by the desired conversion factor.
FOR EXAMPLE:
Original METER CAL No. = METER CAL No. for displays in Fluid Ounces
128
Original METER CAL No. = METER CAL No. for displays in Liters
3.785
Original METER CAL No. = METER CAL No. for displays in Pounds
Weight of one gallon
LIQUID CONVERSIONS
U.S. Gallons x 128 = Fluid Ounces
U.S. Gallons x 3.785 = Liters
U.S. Gallons x 0.83267 = Imperial Gallons
U.S. Gallons x 8.34 = Pounds (Water)
LENGTH
1 millimeter (mm) = 0.039 inch
1 centimeter (cm) = 0.393 inch
1 meter (m) = 3.281 feet
1 kilometer (km) = 0.621 mile
1 inch = 25.4 millimeters; 2.54 centimeters
1 mile = 1.609 kilometers
PRESSURE
1 psi = 6.89 kPa
AREA
1 square meter = 10.764 square feet
1 hectare (ha) = 2.471 acres; 10,000 square meters
1 acre = 0.405 hectare; 43,560 square feet
1 square mile = 640 acres; 258.9 hectares
GPM - Gallons per minute
lit/min - Liters per minute
dl/min - Deciliter per minute
PSI - Pounds per square inch
kPa - Kilopascal
GPA - Gallon per acre
lit/ha - Liter per hectare
ml/ha - Milliliter per hectare
GPK - Gallons per 1,000 sq. ft.
mm - Millimeters
cm - Centimeters
dm - Decimeters
m - Meter
MPH - Miles per hour
km - Kilometers
km/h - Kilometers per hour
US - Volume per ACRE
SI - Volume per HECTARE
TU - Volume per 1,000 sq. ft.
[] - Metric numbers
{} - 1,000 sq. ft. numbers
3
INTRODUCTION
The Raven SCS 340 (SPRAYER CONTROL SYSTEM) is designed to improve the uniformity of spray
applications automatically. Its performance relies on the installation and preventive
maintenance of the complete sprayer. It is important that this Installation and Service
Manual be reviewed thoroughly before operating the system. This Manual provides a simple
step-by-step procedure for installing and operating.
The SCS 340 consists of a computer based Control Console, a Speed Sensor, a turbine type
Flow Meter, and a motorized Control Valve. The Console mounts directly in the cab of
the vehicle for easy operator use. The Raven Radar Speed Sensor is mounted on the vehicle
or on the sprayer implement (Speedometer Drive Speed Sensors and Wheel Drive Speed
Sensors are also available). The motorized Control Valve and Flow Meter mount directly
to the framework of the sprayer. Appropriate cabling is furnished for field
installation.
The operator sets the target rate (volume per area) to be sprayed and the SCS 340
automatically maintains the flow regardless of vehicle speed or gear selection (within
range of selected spray nozzles). A manual override switch allows the operator to
manually control flow for system check-out and spot spraying. The SCS 340 additionally
functions as an area monitor, speed monitor, and volume totalizer.
4
INSTALLATION
1. MOUNTING THE RAVEN RADAR SPEED SENSOR
See Appendix 1 for Wheel Drive Speed Sensor installation instructions.
See Appendix 2 for Speedometer Drive Speed Sensor installation instructions.
For mounting the Radar, the following guidelines will assure proper installation:
It is suggested that a large heavy mounting bracket, (P/N 107-0159-693) be attached
to the vehicle frame for mounting the Radar.
1) Park vehicle on level surface.
2) Select mounting site by considering the following:
a) The line of sight from the lens to the ground must not be obstructed by
structures or tires. Obstructions must not come closer than 20 inches to
the bottom of the Radar. See Figures 1 and 2.
b) The Radar lens must be parallel to the ground from front to back. Radar
can be tilted out 0-15 degrees to provide more clearance and miss
obstructions. See Figure 2.
c) The Radar should be mounted so that the length of the Radar is parallel with
direction of vehicle travel.
3) Use carpenters level to verify that mounting bracket is parallel to the ground.
4) Bolt mounting bracket to implement.
5) Bolt Radar to mounting bracket using mounting hardware. See Figure 3.
6) Connect Radar with Radar Interface Cable (P/N 115-0159-539), to the Console. The
Red wire should be connected to the Orange cable wire. The White wire should be
connected to the White cable wire (See "BATTERY CONNECTIONS").
CAUTION: The connection of the Radar power in reverse polarity could result
in damage to the Radar.
FIGURE 1 FIGURE 3
FIGURE 2
5
2. MOUNTING THE FLOW METER
l) Mount the Flow Meter in the area of the boom valves per Figure 4. All flow through
the Flow Meter must go to booms only, i.e. no return line to tank or pump after
Flow Meter.
2) Mount Flow Meter horizontal to the ground. Use the bracket to secure the Flow
Meter.
3) For best results, allow a minimum of 7 1/2 inches [20 cm] of straight hose on inlet
of Flow Meter. Bend radius of hose on outlet of Flow Meter should be gradual.
4) Flow must be in direction of arrow on Flow Meter.
NOTE: For flow rates less than 3 GPM [11 lit/min], mount the Flow Meter
vertically with arrow pointing upward. (Refer to Appendix 3 for
alternate plumbing diagram).
NOTE: It is essential, when using suspensions, that the system be thoroughly
rinsed out each day after use. Failure to do so may cause system to
malfunction.
3. MOUNTING THE CONTROL VALVE
l) Mount the motorized Control Valve in the main hose line between the Flow Meter
and the booms, with motor in the upright position. (For less than 3 GPM [11 lit/
min] the motorized Control Valve is mounted in the by-pass line, refer to Appendix
3 for alternate plumbing diagram).
2) Connect the Flow Control Cable connectors to boom valves, Flow Meter, and motorized
Control Valve. (Black wire to boom valve #1, Brown wire to boom valve #2, and
Blue wire to boom valve #3, Black/White wire to boom Valve #4).
FIGURE 4
6
4. MOUNTING THE CONSOLE AND CABLING
l) Mount the Console to secure support inside the cab of the vehicle.
2) Connect the Control Cable to the plug in the back of the Console. Route the cable
out of the vehicle cab. (Flow Meter extension cables are available from your
Dealer).
3) Turn AUTO/MAN/OFF switch OFF and route Red and White battery wires to a 12-Volt
battery. Attach White battery wire to the NEGATIVE (-) battery terminal, and the
Red battery wire directly to the POSITIVE (+) battery terminal. See Figure 6 on
page 7. (DO NOT CONNECT RED AND WHITE WIRES TO THE STARTER). Secure the battery
wires with plastic cable ties. DO NOT tie battery wires close to existing battery
leads or any other electrical wiring. See Appendix 8 for Remote Switch
installation.
4) Connect the Speed Sensor to the plug in the back of the Console.
5) Secure and tie the Speed Sensor Cable and Console Control Cable with plastic cable
ties.
6) Initial installation of the system is now complete.
FIGURE 5
7
BATTERY CONNECTIONS
FIGURE 6
Table of contents
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