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2.4.3 Wiring instructions
[1] Wires
Wires (approximately 1m) of the proximity switch and lead wires (approximately 1.8m) of the electrode are
provided with the pump. However, no other connection wires are attached with the product. Obtain the wires
required for wiring the controller and 5-port electromagnetic valve in accordance with the following table.
Wire Application
Power Specification
For controller power
115V, 0.24A or above
For connecting 5-port electromagnetic valve & controller
24V, 0.24A or above
[2] Extension of electrode wire
Control the resistance value to 5k
Ω
or lower, including the attached lead wire (about 1.8m in length).
Any resistance larger than 5k
Ω
may result in inability to stop the pump. (Because detection by the auto-stop
alarm will not be available due to the valve in excess of the detection range of the controller when the bellows is
damaged.)
[3] Wiring of proximity switch
Separate the wires of the proximity switch from the power line or other high-voltage cable. They should not be
installed in the same duct or in the same cable tube, otherwise the switch may malfunction. When extending the
wire, if it is not extended beyond 30m, use a wire of 0.3mm
2
or above. If the extension is for more than 30m,
use wire with a conductive resistance of 100
Ω
/km or less.
