TeeJet TASC-6500 - Manual (Page 29)

29 M-T 96162
999-1511 TASC 6200/6500
H. Calculate the new calibration number using the formula:
Use the INC/DEC switch to change the distance calibration number, in the SET-UP mode, until
the displayed distance in the OPERATE mode is the same as the measured distance.
RECORD THE DISTANCE CALIBRATION NUMBER HERE
(MEASURED DISTANCE ÷ DISPLAYED DISTANCE) X CALIBRATION NUMBER = NEW
CALIBRATION NUMBER. (If the distance shown on the console is greater than the
measured distance, the calibration number will decrease.
6.8 CONVEYOR CALIBRATION, CHANNEL C
It is necessary to enter a spreader constant in TASC to ensure an accurate output from the conveyor.
The spreader constant is the number of sensor pulses per cubic foot of material discharged. The con-
veyor must be calibrated whenever there are changes to the discharge gate openings.
(NOTE: other
factors, such as moisture content, granule size, granule shape, etc., may also affect this constant.)
THE CALIBRATE PROCEDURE IS SIMPLE. IT IS IMPORTANT TO CALIBRATE FOR THE MATERIAL
AND GATE OPENINGS YOU ARE USING. Be sure you have entered the proper PRODUCT DENSITY
(SEE 6.1.2).
A. Use the following switch settings.
Power ON
Mode selector SET-UP
Display selector CARRIER, VOL. APPLIED
Booms ON (if channel is in split drive)
Channel C switch ON
The display will show the current spreader constant. Record for reference. Turn the booms OFF.
B. Weigh the truck and load. Back up to a location where you can safely collect the discharged
material.
C. Switch the mode selector to OPERATE and use the DEC switch to zero the display.
D. Turn the booms ON, Make sure there is some speed programmed into GSO (see page 6-5),
and turn the GSO switch on. Switch channel C rate switch ON. The conveyor will begin to
discharge.
E. Discharge enough material to get an accurate measurement. For example: if your scale
reads in 20 lb increments, you must discharge at least 1000 lbs to be able to measure within 1%
accuracy.
F. When enough material has been discharged, switch channel C OFF and rotate the display
selector to CARRIER, VOL. APPLIED. TASC displays the indicated amount discharged by the
conveyor in pounds.