IF…E – ADJUSTABLE ELECTRIC FLOW SWITCHES

ADJUSTABLE ELECTRIC FLOW SWITCHES IFE 

USE 

The IFE flow switches are generally used to monitor the flow rate of a fluid in a circuit and send an electric ON-OFF alarm signal to a remote board in case of flow decreasing under the set value. These flow switches are normally used in circulation plants, fuel and water outlets, oil systems as well as in cooling circuits, heat pumps, welding machines, heaters, transformers, heat exchangers, compressors, food, chemical and pharmaceutical industry.

OPERATION 

These electric and adjustable flow switches have been designed with a rugged body, connections, a shutter with permanent magnet and variable flow areas, seals, a cursor with magnetic contacts and a connector for circuitry. The shutter, plunged in the fluid, can freely move without mechanical friction and, thanks to the magnetic field produced by the magnet housed inside, operates the electric alarm contact. By means of the movable cursor, equipped with a reference index, the contact can be placed by the flow rate value to be checked, shown on the label at the side. The cursor movement must be fixed by turning the dowel under the connector. Not to be used with fluids containing particulates.

FEATURES 

Highest operating safety due to frictionless parts in movement. Adjustment of the intervention point at any value indicated on the scale. Rugged construction. Not affected by fluid pressure.

COMPONENTS 

Nickel-plated brass body and connections, chromium-plated brass shutter with permanent magnet, nitrile rubber gaskets, switch housing cursor, connector and screws in thermoplastic material.

INSTALLATION 

Mount the IF...E flow switch far from any interacting magnetic fields and avoid fixing it against iron walls that could degauss the magnet housed inside the shutter and affect the correct working. It is advisable to fix the device in vertical position to let the fluid flow upwards. The fluid to be monitored must be free from any impurity that could prevent the shutter working correctly. To adjust the electric alarm contact, shift the cursor upwards and then slowly bring it down to let the reed contact housed inside close. Then secure it with the proper fixing dowel.

CONVERSION TABLE OF WATER/AIR FLOW RATE RELATIVE TO IF...V-VE-E FLOW INDICATORS AND SWITCHES

SPRINGS TO BE USED WITH FLUIDS MORE VISCOUS THAN WATER

FLOW INDICATORS AND SWITCHES MUST BE MOUNTED AT LEAST 50mm FAR FROM IRON PARTS OR WALLS AND OTHER POSSIBLE INTERACTING MAGNETIC FIELD.