Appendix B
246
Viper Pro Installation & Operation Manual
Metric Unit Rate Display
For Rates displayed in 1 kg increments, the formula to calculate the spreader constant is:
Where SC = the Spreader Constant, L = Length of belt travel in centimeters per 1 revolution of the encoder, GH
= Gate Height in centimeters and GW = Gate Width in centimeters.
For Example:
Given a Length of belt travel of 33 cm, a Gate Height of 18 cm and a Gate Width of 38 cm:
Enter 797 as the Spreader Constant if the field computer is set to display Metric units.
Simplified Spreader Constant Calibration
The following procedure steps through the Calibration Assistance wizard for the spreader constant.
1.
Touch within the
Product Control
area at the bottom of the main screen.
2.
Touch within the Product Control Settings area on the CAN Controller Status screen. The first Node Settings
screen will be displayed.
Note:
The Spreader Constant Calibration Assistance button is only displayed if the application type is set
to Gran 1, Gran 2 or Gran 3. See the Application and Control Valve Type(s) section on page 40 for
more information on selecting the application type.
3.
Touch the
Calibration Assistance
button. The Spreader Calibration prompt displays with the values
currently set for the product density and spreader constant.
4.
Touch
OK
to continue the Spreader Calibration wizard.
SC
18 000 000
,
,
L
GH
×
GW
×
----------------------------------
=
18 000 000
,
,
33
18
×
38
×
------------------------------
797
=
Summary of Contents for Viper Pro
Page 1: ... Software Version 3 10 Viper Pro Installation Operation Manual ...
Page 42: ...Chapter 3 32 Viper Pro Installation Operation Manual ...
Page 132: ...Chapter 6 122 Viper Pro Installation Operation Manual ...
Page 138: ...Chapter 7 128 Viper Pro Installation Operation Manual ...
Page 180: ...Manual No 016 0171 122 Rev I 170 Advanced Settings and Features ...
Page 194: ...Chapter 9 184 Viper Pro Installation Operation Manual ...
Page 214: ...Chapter 11 204 Viper Pro Installation Operation Manual ...
Page 262: ...Appendix B 252 Viper Pro Installation Operation Manual ...
Page 276: ...Appendix F 266 Viper Pro Installation Operation Manual ...
Page 284: ...Appendix I 274 Viper Pro Installation Operation Manual ...
Page 292: ...Appendix J 282 Viper Pro Installation Operation Manual ...
Page 299: ......