C
OPERATOR’S MANUAL
CALCULATING SPREADER CONSTANTS
The spreader constant can be calculated if the following is known:
A = Number of pulses per revolution of the sensor shaft.
B = Turns of the sensor shaft for each turn of the final shaft.
C = Pounds of material discharged per revolution of the final shaft.
SPR CON =
A x B
Pulses Per Pound
EXAMPLE:
A = 360 pulses per revolution (for Dj sensor p/n 46436-017X).
B = 25 turns of the sensor shaft for each turn of the final shaft.
C = 50 pounds of material discharged per revolution of final shaft.
SPR CON =
360 x 25
= 180 P/LB
50
NOTES:
1.
V-Box spreaders have a different SPR CON for each gate setting.
2.
The number of pulses per revolution for several Dj shaft sensors are:
360 for p/n 46436-017X (standard DICKEY-john shaft sensor).
60 for p/n 10844-000X
180 for p/n 464361500S1
146 / APPENDIX B CONVERTING CONSTANTS
Flex4 Pro
TM
Control System
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