Rev Z
Page 13
11/28/2011
Copyright © 2011 by Cirus Controls, LLC. All Rights Reserved. No part of this material may be reproduced without the express
written permission of Cirus Controls LLC for each reproduction.
Note: this screen will re-appear every time the system is powered up until the granular
calibration is satisfactorily completed, but only on controllers with the auger activated. It is not
necessary to calibrate to run the system unless you are seeking accurate spreading amounts.
This warning screen can be disabled by selecting the “perform calibration now” and pressing
“pass” for every question asked until you reach a screen offering you the option to disable this
warning by pressing “pass.” (Selecting “pass” in this manner causes you to reach the end of the
drop test without doing the test correctly). It is not recommended that you disable this warning.
STEP 5: Speedometer Calibration
The speedometer sensor emits a stream of pulses, which increase as the speed increases. The
SpreadSmart Rx
TM
uses this information to determine speed, using a “pulses per mile” setting.
This can be set either by driving the truck at 30 MPH (steady speed), by driving the truck over a
known mile (fixed distance) or by “matching the truck speedometer.” Fixed distance calibration
is more accurate, but “steady speed” or “matching” calibrations are faster.
1) Enter configuration menu by selecting the yellow “system setup” button. You will be asked
for a password, enter “_____” using the spinner controls to change the digits, and the blast/pass
controls to change cursor positions. Run the cursor past the end to enter setup mode.
2) Use spinner button, select “Trim/Cal”,
a) Use GPS as Speedo – answer yes if GPM antenna is source of speedo signal.
Default is “no” when you use the truck speedometer/transmission for speedo signal
b) Speedo Pulses / MI – hit pass to begin calibration of speedometer
“Steady Speed” Calibration
1)
Select speedometer calibration;
2)
Select steady speed calibration;
3)
Bring the truck to 30 miles per hour and remain at that speed;
4)
Press pass to start calibration;
5)
Calibration will complete after several seconds;
The unit will take several samples of the speed sensor output, average, and determine the number
of pulses per mile. The whole process takes about 10 seconds.
