KARI ELECTRODE SWITCH EL-22
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to prevent dry running of deep well pumps
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to control charging and discharging
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to control motor and magnetic valves
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high and low level alarm
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dosing
ADJUSTABLE
SENSITIVITY
USE
Electrode switch EL-22 is used to control
pump by the liquid level changes. Single
phase motors rated under 0,37 kW can be
controlled directly by EL-22. Electrode
switch can be used in conductive liquids
only. The sensitivity is adjustable from
0 to 100 ohms to correspond the conductivity
of the liquid.
FUNCTION
In the discharge case the liquid shall rise
to A-electrodes level until the relay picks
up (pump starts). Relay drops out when the
liquid has sunken under B-electrodes level.
The start and stop level differential is
determined by the height between A- and
B-electrodes. In charging case the pump
starts at B-level and stops at A-level.
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