The KARI Float Switch is a control device for charging and discharging pumps and motor and magnetic valves. It is also an alarm device that alerts the user at specified surface levels. Thanks to its large float casing (Ø 170 mm), the KARI Float Switch has a buoyancy that guarantees smooth, troublefree operation under all conditions. SGS FIMKO Oy (the Finnish Electrical Inspectorate) has performed testing in accordance with the Low Voltage Directive (LVD) and approved the KARI Float Switch for use in non-flammable liquids at 250 volts.
An example of operation of the model 4h
High level alarm
Issued when the level of liquid gets too high, or initiates valve discharging when, for example, the pump is out of order.
Start
Large amount of liquid. Discharging pump starts.
Stop
Lower limit for discharging. Discharging pump stops.
Low level alarm
Issued when the level of liquid gets too low, or initiates valve charging when, for example, the pump is out of order.
Functions
Discharging-pump control
4H
Pump control with one switching element. High and low level alarms.
4Y
Pump control with two switching elements. High and low level alarms.
Charging-pump control
4L
Pump control with one switching element. High and low level alarms.
4A
Pump control with two switching elements. High and low level alarms.
