drive Shaft Speed Sensor Calibration
NOTE: If you have mounted the magnetic speed sen sor on
a wheel, skip this step and go on to Fine Tuning Speed/
distance Calibration values. To fine-tune the wheel cir-
cum fer ence (CIRC) value, turn to page 27.
Because of the difference in wheel-to-drive shaft ra tios, it
is difficult to determine a calibration value for installation
on a drive shaft by measuring a wheel. You must start with
an estimated calibration value and then fine-tune the
calibration.
Place the console in HOLD.
1.
Press and hold the “CAL” key for three sec onds to
2.
en ter the cal i bra tion mode. Turn the dial to “CIRC”
po si tion. The display will alternate between the wheel
circumference (CIRC) and dis tance values at about three-
sec ond intervals. (When the word “CAL” appears, the
num ber dis played is the wheel cir cum fer ence (CIRC)
value. When “CAL” does not appear, this is the dis tance
value.)
When the display shows wheel circumference (“CAL” is
3.
displayed) , use the “+” or “-” key to adjust the displayed
value to 1.75. Exit “CAL” by press ing and holding the
“CAL” key for three seconds.
NOTE: If you let go of the “+” and “-” keys while you are
ad just ing the CIRC value, the console will wait to make
sure you are finished. After 64 sec onds, the dis play will
start al ter nat ing be tween the wheel cir cum fer ence (CIRC)
and distance values again. Make sure you know which
value you are adjusting.
FLOw CAL:
This po si tion is used to calibrate the flow me-
ter for ac cu rate liquid mea sure ment. When this po si tion
is selected, the display will alternately show, every three
seconds, the flowmeter calibration value and
the total flow value. The flowmeter calibration
value is the number shown
along with “CAL” on the
display. The total flow value
is the number shown when
“CAL”
IS NOT
displayed. The flowmeter calibration value
is typical ly selected when entering the calibration number
from the tag attached to the flowmeter. Enter the calibration
value stamped on the tag attached to the flowmeter. The
total flow value is typ i cal ly selected when you are fine-tuning
the flowmeter cal i bra tion
(please refer to Finetuning Flow
me ter cal i bra tion).
To select either one of the values for
calibration, simply press the “+” or “-” button when the val ue
you want to select is being displayed. Once selected, the
display will stop al ter nat ing between the two figures for one
minute to allow you to make the appropriate ad just ment.
After one minute follow ing your last adjustment to the value,
or after you move the rotary selector away from and then
back to the FLOW CAL position, the display will alternate
between the two values.
TOTAL
FLOw
FLOw
CAL
Every flowmeter is calibrated with water at the factory. If
your spray solution has a specific gravity or viscosity that is
different than water, flowmeter calibration should be done
for the specific solution (please refer to Fine-Tuning Flow me-
ter Calibration.)
Your Micro-Trak flowmeter has been tested at the factory
and assigned a “FLOW CAL” value to make it operate
properly with the MT-3405 M console. This number
is stamped on the metal tag attached to the flowmeter.
See illustration 37.
This is a starting point only. The value
must be fine tuned.
See Finetuning Flowmeter calibration
on page 31.
27
Calibration
(cont)
Entering Calibration Values
(cont)
illustration 27
