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KARI
FLOAT SWITCH

Download / view a Float switches pdf-file (465 kb) here

Mini float switch

Installation

Technical information

The Kari Float Switch is a control device for filling and discharging pumps, motor and magnetic valves. It is also an alarm device at certain pre-determined surface levels. FIMKO Oy (The Finnish Electrical lnspectorate), has performed the tests according to the all-European CCA-agreement and approved the Kari Float Switch for use in non-flammable liquids at 250 Volts. In dangerous enviroments (e.g. wells and pumping stations ) we recommend 24 V voltage. In potentially explosive atmospheres (e.g. oil tanks ) the Kari Float Switch can be used in connection with (Ex)i-isolator switch units. Due to its large float casing the Kari Float Switch has a buoyancy which guarantees smooth, trouble-free operation under all conditions.

 

STANDARD FLOAT SWITCH (diameter 170 mm) TYPES

DISCHARGE TYPES  
TYPE OPERATION
1H High level alarm or magnetic valve control
2H Discharging pump control or dry running prevention
2Y Discharging pump control or dry running prevention
3H Discharging pump control + high level alarm
3HE Discharging pump control + isolated high level alarm
3Y Discharging pump control + high level alarm
3YE Discharging pump control + isolated high level alarm
4H Discharging pump control + high and low level alarms
4Y Discharging pump control + high and low level alarms

 

CHARGE TYPES  
1L Low level alarm or magnetic valve control
2L Charging pump control
2A Charging pump control
3L Charging pump control + low level alarm
3LE Charging pump control + isolated low level alarm
3A Charging pump control + low level alarm
3AE Charging pump control + isolated low level alarm
4L Charging pump control + high and low level alarms
4A Charging pump control + high and low level alarms

 

OTHER TYPES  
1C Change over contact, alarm unit
2HL Alarm unit for expansion vessels, high and low alarm

 

KARI
MINI FLOAT SWITCH

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The Kari Mini Float Switch is a control device for filling and discharging pumps, motor and magnetic valves. lt is also an alarm device at certain pre-determined surface levels.
The Kari Mini Float Switch is approved for use in non-flammable liquids at 250 Volts.

For its small size (diameter 76 mm) the Kari Mini Float Switch can be used in narrow places.

 

STANDARD MINI FLOAT SWITCH (diameter 76 mm) TYPES

TYPE OPERATION
M1H High level alarm or magnetic valve control
M1L Low level alarm or magnetic valve control
M2H Discharging pump control or dry running prevention
M2L Charging pump control
M1C Change over contact (alarms etc.)

 

INSTALLATION

The Kari Float Switch (or Mini Float Switch) is simply placed in the liquid so that the float follows the movement of the surface. The switching height differential is adjusted by moving the weight along the cable. The differential is on minimum, when the weight is nearest to the float. Complete instructions including a wiring diagram accompany every Kari Float Switch. These are also separately available on request.

If the viscosity of the liquid is high, we recommend an extra weight on the cable. We supply suitable auxiliary weights.

Weights are tightened onto the cable with a wedge.

 

TECHNICAL INFORMATION

 

WHEN ORDERING, THE FOLLOWING INFORMATION
SHOULD BE GIVEN

- type as per above or special requirements
- cable length if more than 5 meters
- height difference between upper and lower levels if smaller than 250 mm or greater than 1200 m (min. 50 mm , max 2000 mm, but not available in the same float)

 

Download / view a Float switches pdf-file (465 kb) here

 

 

 



Counter reseted 22.12.2009

Last updated 27.5.2009