TeeJet TASC-6500 - Manual (Page 18)

2-8
98-05019
Rev- 1
CE & S
TANDARD
V
ERSION
TASC 6200/6500
C. Set an application rate similar to one you would use in the field (see 2.4.1). Zero the accumulated volume
for Channel C (see 3.1.4).
D. Set a normal field speed into the TEST SPEED position (see 3.7). Select TEST SPEED and OPERATE
mode. Turn the channel C product switch and the booms ON. The machine will begin to discharge product.
E. Discharge enough material to get an accurate measurement. For example: if your scale reads in 20 lb (10 kg)
increments, you must discharge at least 2000 lbs (1000 kg) to be able to measure within 1% accuracy.
F. When enough material has been discharged, switch the booms OFF and rotate the display selector to
CARRIER, VOL. APPLIED. TASC displays the calculated amount discharged by the machine, in pounds
(kg).
G. Weigh the truck and load (be sure the driver is included if he was in the truck when it was weighed the first
time). The difference between the starting weight and the ending weight is the actual amount discharged.
H. To correct the calibration number, use the following formula:
I. Put the mode selector switch in SET-UP and the C Channel Product Switch in ALT. RATE. (IF YOU ARE
IN SPLIT DRIVE, YOU MUST HAVE ALL THE PROGRAMED BOOM SECTIONS TURNED ON.)
Use the INC/DEC switch to change the calibration number. Turn all booms OFF. Switch back to OPERATE
and the corrected indicated weight is displayed. If the indicated weight now matches the actual weight, the
machine is calibrated.
Note: If channel C is being used as a liquid control channel, start with the typical flow meter calibration
number for the flow meter installed. Adjust the calibration number according to the testing and adjustment
procedure in Section 2.12 except the C channel switch is turned on instead of the L channel switch.
NOTE: Channel C Product Density must be set to 1.0 to use it as a liquid control channel (See Section
2.4.2)
2.12 CALIBRATING THE L CHANNEL
It may be necessary to adjust the L Channel calibration number to get an accurate application.
When used as a liquid control channel the density must be set to 1.0 and the initial calibration number represents
(INDICATED WEIGHT ÷ ACTUAL WEIGHT) X CAL # = NEW CAL #. If the weight read from
the console is greater than the weight actually measured, the calibration number will increase.
FOR GRANULAR PRODUCTS WRITE DOWN THE CALIBRATION NUMBERS FOR DIF-
FERENT MATERIALS AND DIFFERENT GATE SETTINGS. USE THOSE NUMBERS WHEN-
EVER YOU ARE SPREADING THAT MATERIAL AT THE SAME GATE SETTING.
IF IT IS NOT CONVENIENT TO CONDUCT AN ACTUAL CATCH TEST,
FIELD EXPERIENCE WILL ALLOW YOU TO FINE TUNE THE CALI-
BRATION NUMBER. IF CHANNEL C IS APPLYING TOO MUCH, DE-
CREASE THE CALIBRATION NUMBER BY THE SAME PERCENTAGE
AS THE OVER APPLICATION. IF CHANNEL C IS APPLYING TOO
LITTLE (YOU HAVE MATERIAL LEFT OVER) INCREASE THE CALI-
BRATION NUMBER BY THE SAME PERCENTAGE AS THE UNDER
APPLICATION.