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Setting Up- Calibrate the Flow Meter
17.8 CALIBRATE THE FLOW METER
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Calibrate the flow meter using one of the following methods:
1. Flow Calibration for Normal Valves, see Section 17.8.1.
2. Flow Calibration for Balanced (Hardi) type valves, see Section 17.8.2.
3. Manual entry of Calibration Factor, see Section 9.0 (OPTIONS/Sensors/Flow)
17.8.1
Flow Calibration for Normal Valves
1. Disconnect a line from one valve going to a boom section. Connect a line from the
valve to the measuring container. (20 litre drum)
2. Select the "Speed Readout" and set a test with the arrows close to normal spraying
speed.
3. Select the boom section that has been disconnected from the valve and is now
supplying the measuring container. The section should turn green on the screen.
4. Select the tank icon on the screen you are calibrating,
5. Select "Cal X", (X is the tank number) A window with "CALIBRATE TANK X" appears
on the right of the screen.
6. Start the pump and select "Flow On/Off"
7. The Valve and the Master will turn on, and liquid will flow into the measuring
container. The pulse readout next to the flow button should increment.
8 Press the "Flow On/Off" button when there is approximately 20 litres in the measuring
container. Measure this volume as accurately as possible and enter this volume into
appropriate section of the window.
9 The ZYNX will calculate the correct FLOW CAL. FACTOR and register this into the
system.
10 Press the ‘Reset’ button and repeat the procedure if required.
11 Select done when finished
Page 90
V1.98 21/06/06
Pulses
Current
Cal. Factor
Boom Section
Selected
Speed Readout
Calibrate Tank Window
Tank 1 Icon
Units used for
Cal. Factor
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