Flowmeters SGK 1-3 are used for direct reading and measuring of low flow-rates on liquids and gases. They are designed for reduced space, in laboratory, in technical rooms.

The measuring principle is that of the variable area flowmeter, the float is moved by the fluid inside a calibrated conical glass tube. The glass tube (3) is sealed at each end by an O-ring protected against damaged by a flat gasket (inserted in the parts 1 and 2).
These flowmeters can be equipped with an adjustment valve and they receive limit value switches. The signal output from limit value switches are easily connected to a PLC or monitoring device. The GK2 version can be fitted with a ruler with a 4-20 mA transmitter (Hall effect sensors).

Standard versions:

• SGK-1 For smallest flows of air and water
• SGK-2 For medium flows of air and water
• SGK-3 Low flows of air and water
• ...-MSK1 With bistable Reed contact N.C.
• ...-MSK12 With bistable Reed contact N.O.
• ...-MSKW With changeover Reed contact
• ...-RC ¹⁾ With inductive limit value switch
• ...-EM ²⁾ With analogue output 4-20 mA or 10 V

¹⁾ Flow-rates < 2 l/h of water; < 80 l/h of air
²⁾ Available only with SGK-2 version (other ranges on request)

Limit value switches:
These flowmeters can be equipped with a magnetic float and Reed contacts, triggerpoints adjustable over the entire measuring range. For small flows up to 30 l/h, detection by inductive contact series RC will be used.

Analogue output 4-20 mA or 0-10 V:
The output signal is obtained by using a linear Hall effect displacement sensor. The output signal is proportional to the height of the magnetic float position. The sensor is plugged through a connector M12.
This output is useful for applications using a PLC. The device is compact with a high level of repeatability.