Rev Z Page 16 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.
c) Press pass to select between calibration modes:
i) Weigh Truck (requires truck scales);
ii) Weigh Material Dropped (requires 75 lb. scale and bucket for weighing);
d) Read the instructions and page through them using the pass button.
a. Weigh truck – run the auger at 50% and unload at least a yard of material;
b. Weigh Material – run the auger at 50% and unload 300-500 lbs of material.
f) Enter weight of material dropped.
g) Accept the new calibration value in pulses/lb (note that max lbs/min is changed by the system
as a result of the new value in pulses/lb).
Drop Test is now complete for the material selected. Note that for maximum accuracy and
performance, a drop test must be performed for each type of granular material (salt, sand,
combinations, other material, etc.).
Open Loop Drop Test (no sensor on auger/conveyor)
A drop test must be performed for each named type of granular material (salt, sand, mixture, etc).
Drop tests performed on open loop systems will improve accuracy, but cannot achieve the accuracy of a
closed loop system. In addition, accuracy of open loop system is dependent on the accuracy of the
hydraulic trimming for the auger. Best trimming requires a hand held tachometer to properly identify the
max rpm of the auger (and the max trim of the auger hydraulic channel).
Conveyor Spreaders: accuracy is a function of the gate height settings on the truck. If multiple gate
settings are used in normal operation, a material name and drop test must be run for each gate setting (Salt
2, Salt 3, Salt 4 etc). Changes in the gate setting without changing the calibration will result in less
accurate dispensation of granular material.
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 of the password to enter setup mode.
2) Using the spinner button, select “Materials,” and select material type.
a) Pick the material type you wish to calibrate (i.e. salt).
b) Scroll down to maximum LB/min.
c) Press pass to select between calibration modes:
i) Weigh Truck (requires truck scales);
ii) Weigh Material Dropped (requires 75 lb. scale and bucket for weighing);
d) Read the instructions and page through them using the pass button.
a. Weigh truck – run the auger at 50% and unload at least a yard of material;
b. Weigh Material – run the auger at 50% and unload 300-500 lbs of material.
e) Enter weight of material dropped.
f) Accept the new calibration value in pulses/lb (note that max lbs/min is changed by the system
as a result of the new value in pulses/lb).
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