12
5.
CALCULATING "VALVE CAL"
1)
The initial Control Valve calibration number is 2123 for C-Sd, or 743 for C-FC.
After operating the system, you may desire to refine this number. See definitions
below:
For
FAST VALVE
(C-F or C-FC):
For
STANDARD VALVE
(C-Sd):
Valve Backlash Digit
Controls the time of the first correction pulse after
a change in correction direction is detected.
(INC to DEC
-or- DEC to INC).
Range: 1 to 9
1-Short Pulse
9-Long Pulse
Valve Speed Digit
Controls response time of Control Valve motor.
CAUTION:
Running the Control Valve too fast will
cause the system to oscillate.
C-Sd Valve Control
Product 1 Range:
1 to 9
1-Slow
9-Fast
C-F or C-FC Valve Control
Product 2-5 Ranges:
0 to 9
0-Fast
9-Slow
Brake Point Digit
Sets the percent away from target rate at which the
Control Valve motor begins turning at a slower rate, so
as not to overshoot the desired rate.
Range: 0 to 9
0 = 5%
1 = 10%
9 = 90%
Dead-Band Digit
Allowable difference between target and actual applica-
tion rate, where rate correction is not performed.
Range: 1 to 9
1 = 1%
9 = 9%
6.
CALCULATING "RATE CAL"
The application rate in lbs/acre [kg/ha] is entered as RATE CAL. Consult the
equipment manual to insure that the selected gate opening is capable of applying
at this application rate.
NOTE:
The Spreader Constant must be recalculated anytime the gate opening is
changed.
Summary of Contents for SCS 660
Page 1: ...SCS 660 FOR GRANULAR APPLICATIONS INSTALLATION AND SERVICE MANUAL...
Page 2: ......
Page 10: ...8 BATTERY CONNECTIONS FIGURE 10...
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Page 52: ...Manual Rev E SCS 660 9 97 Order 50 9 11 97 016 0159 572...
