Operator's Manual

19
MAINTENANCE
PROCEDURE TO RE-CALIBRATE FLOW METER
1. Enter the specific METER CAL number, listed
on the Flow Meter, in the key labeled
METER
CAL
5
2. Enter a TOTAL VOLUME of 0 in the key labeled
TOTAL
VOLUME
.
3. Fill applicator tank with a predetermined amount
of measured liquid (i.e. 100 gallons).
NOTE: For best results, measure fluid using
an independent method. For greater accuracy
it is recommended that the predetermined
amount of measured liquid should fill the
applicator tank to its fullest level.
4. Empty applicator tank by boom spraying under
normal operating conditions (it is not necessary
to set vehicle in motion). Once the predetermined
amount of measured liquid has been emptied from
the applicator tank, check the TOTAL VOLUME
number. This number should equal the
predetermined amount of measured liquid. If the
number displayed under TOTAL VOLUME is
different from the predetermined amount of
measured liquid, than recalculate the METER CAL
using the formula below. Under normal
circumstances, the correct METER CAL should be
within +/- 3% of the METER CAL number stamped
on the tag of the Flow Meter.
EXAMPLE: METER CAL = 1660
TOTAL VOLUME = 103
Predetermined amount of measured liquid = 100
Corrected METER CAL = METER CAL X TOTAL VOLUME
_______________________________________________________________
Predetermined amount of measured liquid
= 1660 x 103 = 1710
_______________
100
Corrected METER CAL = 1710 - Enter this as the new METER CAL number.
NOTE: Repeat this calibration procedure several times to confirm accuracy. (Always "zero out"
the TOTAL VOLUME display before retesting).
NOTE: If the Pro-Control Console should malfunction or need repairs, spraying CAN BE
RESUMED in manual mode by unplugging the cables from the rear of the Computer Console.
The unit can be controlled using the Center Console Controls.