micro-trak FLOWTRAK II, Справочное руководство, Страница: 31 / 44

All FlowTrak II consoles and flowmeters are tested prior to
packaging, so unless there has been damage in shipment
you can be confident that everything will be operational
when you receive it.
However, if you do encounter a problem that appears to be
related to equipment failure, PLEASE DO NOT OPEN THE
CONSOLE . Your system is protected by a warranty, and
Micro-Trak will gladly correct any defect.
Problems can be the result of mistakes in installation or
operation. Before returning any parts for service, carefully
check your installation and review the operating instructions.
For easy-to-follow guidelines, refer to the troubleshooting
section which follows.
CONSOLE APPEARS DEAD
Using your test light, check for 12 volts at the power source.
Also check for damaged power cable or reversed terminals.
(Console requires 12 volts for proper operation).
SPEED IS ALWAYS ZERO OR ERRATIC
Check for properly calibrated speed cal number.
Review speed sensor installation. Check for proper mounting,
alignment and spacing of speed sensor in relationship to
magnet assembly. Make sure magnet polarities are alternated.
Also check cable for breaks or incomplete connection. For
more suggestions on solutions to speed problems, see Hall-
effect sensors and console inputs on pages 34-35.
DISTANCE COUNT IS INACCURATE
Speed cal number was incorrectly calculated or entered.
Review calibration, re-adjust and test.
AREA COUNT IS INACCURATE
Working width or wheel circumference was measured
incorrectly, or speed cal number was calculated or entered
incorrectly. Go back through the original procedures, make
changes, and test for acre (hectare) count again. Verify
accuracy with formula:
Acres = Distance x Width in feet/43560
Hectares = Distance x Width in meters/10,000
Thousands of square feet = Distance x Width in feet/1000
NO READOUT OF GALLONS (LITERS), OR GALLONS
(LITERS) PER MINUTE
Check to see that the sprayer pump and equipment are
operating properly. If liquid is moving through the line,
check the flow sensor to be sure it is screwed all the way into
the flowmeter.
Check to see that a
FLOW CAL number has been entered.
Also check cable for breaks or incomplete connection.
If the flowmeter is new or has not been used for a long period
of time, the turbine may be sticky. Flushing the system out
with water should make the turbine spin freely.
Flow rate may be too low to register a reading, or foreign
material may be lodged in the flowmeter.
Total liquid used is inaccurate
This may result from an incorrectly-entered “FLOW CAL”
value. Check the number stamped on the flowmeter tag,
and be sure this is entered in the console’s “FLOW CAL”
position. If the meter has been used for some time, wear
may have changed the Flow Cal value.
See Fine-Tuning
Flowmeter Calibration on page 24.
Check the mounting position of the flowmeter. With lower
flow rates, the meter should be mounted vertically. Also
check to see that the flow sensor is screwed all the way into
the flowmeter.
Other causes may be inaccurate sprayer tank markings, a
flow rate too low to register, or foreign material lodged in
the flowmeter.
CONSOLE IS ERRATIC IN OPERATION
If you have a two-way radio, it may be mounted too close to
the console. Keep all FlowTrak II cables away from the radio,
its antenna and power cable.
Ignition wires may be causing the console to malfunction.
Keep FlowTrak II cables away from ignition wires, or install
ignition suppressor.
Reroute all cable away from electric solenoids, air conditioning
clutches and similar equipment.
DISPLAYED MEASUREMENTS DO NOT MAKE SENSE
The console may be in the incorrect measurement mode
(English or metric). See page 18 for instructions.
DISPLAY READS “OFL”
DISTANCE, AREA, and VOLUME counters read OFL when
they have exceeded their maximum count. Reset to zero to
resume counting.
Troubleshooting
(cont)
General
31