Croplands QUANTUM FUSION Operator's Manual page 36

SECTION 7
TROUBLESHOOTING
NO FLOW
When the spray controller isn't reading flow, follow these steps to diagnose the issue.
1. Is the flow calibration number present/correct?
2. Is the turbine/paddle spinning freely?
3. Check the flow sensor for any visible signs of damage.
4. Is 12 volts supplied to the flow sensor?
Croplands wiring is Pin A = Signal, Pin B = Positive & Pin C = Negative.
You should read 12 volts on your multimeter between pins B & C when the controller thinks it's spraying and when possible check this with the sensor connected as some controllers lose
their 12 volt supply when under load. If 12 volts is present move to the next step, if no 12 volts is present repeat the test at the next connector working back towards the tractor. Continue on
until you find a bad cable or until you reach the back of the controller. Please note that Croplands MT90 series looms only power the flow meter when spraying with an MT90LOOM/6
relay box on Broadacre sprayers and a diode pack or relay box on the section valve loom on Horticultural sprayers. If the controller is not outputting 12 volts you can send it to Croplands
to be repaired.
Croplands have loan controllers so you can continue spraying while your controller is being repaired.
5. Enter a flow calibration of 1 pulse per litre and view the total volume screen on the controller.
The controller needs to be in "Manual" mode and have at least 1 section turned on so the sprayer would actually be spraying if the pump was engaged.
Start at the cable connecting to the flow sensor. With a small jumper wire (or paper clip), bridge a connection between the Ground and Signal wires using a "bridge, no bridge" motion.
Each time a bridging connection is made the total volume should increase on the controller, if this works replace the flow sensor and re-enter the correct flow calibration. If total volume
does not increase, repeat at the next connector towards the controller.
Continue on until you find a bad cable or until you reach the back of the monitor. If the total volume does still not increase you can send the controller to Croplands to be repaired.
Croplands have loan controllers so you can continue spraying while your controller is being repaired.
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HT-OMFUSION-A