Designed for the control of a variety of loose storage goods

The KARI MS is designed for the detection of the surface level in silos, in which loose storage goods, such as grains or gravel, are stored. Its functioning is based on the tilting of the float. When the surface of the loose storage goods in the silo reaches the level of the float, tilting it to an angle of 25°, a switch inside the float operates and causes a high-level alarm. The KARI MS can be used in ATEX-environment when using Exi-barrier.

An alarm that is independent of the tilting direction

The KARI MS consists of a cable and a switch enclosed within an airtight cone. This is fixed to hang from its cable near the opening of the silo. When the surface of the loose storage goods in the silo reaches the level of the float, tilting it at an angle of 25°, a switch causes a high-level alarm. In the installation of the switch, there is no need to worry about its tilting direction as the KARI MS issues an alarm irrespective of the direction it tilts in.

Three product types

The KARI MS is available with three electrical contact types, rendering it suitable for a range of applications irrespective of their contact type. The KARI MS1 comes with a normally open (NO) contact, while the KARI MS2 has a normally closed (NC) contact. Thanks to its changeover (CO) contact, the KARI MS3 is an ideal choice when the application contact type is not known.

Each switch undergoes testing before use

KARI MS silo switches are reliable and offer consistent top-notch quality. Each switch undergoes vigorous functional testing before it is delivered to the client.

The post KARI MS silo switch first appeared on kari.fi.

An extremely reliable solution for sewage with solids

The KARI ELP system is designed for the control of liquid levels in sewage pump plants. It is extremely reliable as any precipitates in the sewage are prevented from coming into contact with the electrode measuring the changes in the liquid level. Depending on the way it is connected and the number of electrodes used, the KARI ELP is suitable for a wide range of applications. Its operation levels are easy to set.

Precipitating liquids prevented from coming into contact with the electrode

The KARI ELP is a highly reliable control system for sewage and other liquids with deposits. Thanks to its innovative design, sewage is prevented from coming into contact with the electrode at any point, stopping any deposits in the sewage from interfering with the functioning of the electrode.

Available in horizontal and vertical models

The KARI ELP system comes complete with a pre-filled auxiliary liquid bag, the KARI EL22 electrode switch unit, and electrodes with their wires. In addition, a 1” RST pipe is required. This is attached to the bag either in a horizontal or a vertical position. The vertical configuration is used when a thick layer of sediment is found at the bottom of the tank or when the system is to be installed in a narrow well or pipe which does not accommodate the horizontal system.

The auxiliary liquid monitors changes in liquid levels

The electrodes are placed inside the RST pipe, setting them to hang at the desired levels. When the sewage level increases, the hydrostatic pressure forces liquid out of the auxiliary liquid bag, causing it to rise to the pipe. In the pipe, the auxiliary liquid level rises in line with the sewage level, until it reaches the electrode and causes a high-level alarm.

Multiple, simultaneous functions for several pumps

The KARI ELP system comes with one to four switch functions, including the pump’s control functions and high- and low-level alarms. The system has a separate electrode for each function, with the electrodes installed to hang at the desired height. As a cherry on the cake, the KARI ELP can be used to control several pumps simultaneously. A typical setting is a three-pump system, in which stop functions and high-level alarms are shared by all three pumps, while the start levels vary between pumps.

Operation levels with an accuracy of less than one centimetre

The KARI ELP is an extremely precise monitoring and control device for sewage systems. Its operation levels can be determined with an accuracy of less than one centimetre. Its switch system, the KARI EL22, has been approved by SGS Fimko. Each switch and the KARI ELP system undergoes vigorous functional testing before it is delivered to the client.

The post KARI ELP electrode switch first appeared on kari.fi.

The extremely precise KARI sensors have a measurement accuracy of under one centimetre

Kari-Finn offers sensors of extremely high level of precision for the monitoring and control of conductive liquids. From our selection, you can find an ideal solution for a wide range of applications, from indoor premises to wells and containers. Their central unit, the KARI EL22 electrode switch, renders our sensors suitable for a variety of uses. In addition to serving as a high- and low-level alarm system, they can be used to determine the desired start and stop levels.

KARI EL22 electrode switch, a central unit for sensors

Approved by the SGS Fimko certification body, our sensors’ central unit, the KARI EL22, is an extremely accurate monitoring and control device, which enables the determination of the sensor’s operational levels with a precision of less than a centimetre.

The system can be adjusted in line with a liquid’s conductivity

The system is suitable for use in a wide range of conditions, as its sensitivity can be adjusted in accordance with the liquid’s conductivity. The KARI EL22 lends itself to a variety of applications, depending on the choice of sensors. It can be used to:

• prevent the dry-running of deep-well pumps
• control charging and discharging
• control motor and magnetic valves
• give high- and low-level alarms
• determine doses
• act as a flooding sensor for indoor premises

Safe and robust

Measurements are performed safely with extra low voltage (SELV or PELV). The KARI EL22 is separated from the input current by a double-insulated transformer that is protected against short-circuiting, with an additional safety precaution provided by a case solution that is safe even in the event of a lead coming loose. Each KARI EL22 central unit undergoes functionality testing before it is delivered to the client.

An ideal electrode solution for any application

The KARI EL22 is typically connected to either a PEL deep-well electrode equipped with a connector cable or an HIR bar electrode, which is mounted through a container wall via a bushing.

The post KARI EL22 electrode switch first appeared on kari.fi.

Start
Large amount of liquid. Discharging pump starts.

Stop
Lower limit for discharging. Discharging pump stops.

Functions

The post KARI float switch M2H | M2L first appeared on kari.fi.

Alarm
Liquid rises to a level for monitoring.

Functions

The post KARI float switch M1C | M1H | M1L first appeared on kari.fi.

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.

Functions

Discharging-pump control

Charging-pump control

The post KARI float switch C3H | C3L | C3HE | C3LE first appeared on kari.fi.

Start
Large amount of liquid. Discharging pump starts.

Stop
Lower limit for discharging. Discharging pump stops.

Functions

Discharging-pump control

Charging-pimp control

Alarm

The post KARI float switch C2H | C2Y | C2L | C2A | C2HL first appeared on kari.fi.

Alarm
Liquid rises to a level for monitoring.

Functions

The post KARI float switch C1C | C1H | C1L first appeared on kari.fi.

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

Charging-pump control

The post KARI float switch 4H | 4L | 4Y | 4A first appeared on kari.fi.

Alarm
Liquid rises to a level for monitoring.

Functions

The post KARI float switch 1C | 1H | 1L first appeared on kari.fi.