Topcon A2677 manual Ground Speed, Fan Speed and Auxiliary Shaft Sensors, Flow Sensors

X20 Sprayer Reference Manual

Ground Speed, Fan Speed and Auxiliary Shaft Sensors

Ground Speed Sensor	Hall Effect type sensors
Fan Speed Sensor and	3-Pin Weather Pack Plug (Pin A, B and C)
Auxiliary Shaft Sensors
Sensor to Magnet	2-3 millimeters (mm)
Distance
Supply Voltage	Supply 12 Volts from Spray ECU
Signal Voltage	4-5 Volts sensor inactive
	<1 Volt sensor activated by magnet

Flow Sensors

With switch OFF	Open Circuit
Switch ON Resistance	1800 Ohms
2 Wire only
Maximum Contact	50 milli-amps
Current
Accuracy	2% in range 10% to 200% of nominal flow
Bone	15mm
Nominal Flow Rate	80l/min
Calibration	45.7 pulse/l

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