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Characteristic Value / Characteristic / Information
Fixing type: M12
Nominal diameter: 254 mm
Product manager: Accessories-Ball Valves
Switching type: Open
1.1. FUNCTION:
FSA By using the FSA, the fluid level can be easily seen on the outside of the tank. The fluid enters the unit via the lower connection bore and is clearly visible in the tube. By selecting the right size, the particular fluid level can be monitored.
FSK By using the FSK, the fluid level is monitored via an electrical switching signal. This switch signal can be used for a warning or to control the level. The fluid enters the unit via the lower connection bore and pushes a float up the tube. The float now shows the level of the fluid in the tank. If the level of the fluid drops again, the float will activate a switch contact. For the NO switch (type C) the circuit will then be closed, for the NC switch (type O) the circuit will be opened. The special dual switching model (type W) offers two possibilities. It can be used either to close on contact or to open on contact.
TS The TS is a very useful additional option to the FSA and FSK products. However, it also has a useful application as a separate accessory for systems. Once fitted, the temperature sensor of the TS is surrounded by operating fluid. When the nominal temperature is reached, a contact opens and the circuit is broken.
This switching process can be used either as an alarm or to monitor the temperature. When the temperature of the fluid drops by approx. 15 K, the circuit closes again.
TFP Based on the principle of voltage drop, the sensor provides an electrical signal as a value for the temperature. A constant measurement flow is fed to the temperature sensor. The voltage change is roughly proportional to the change in resistance caused by the temperature – the higher the temperature, the greater the resistance. Measurement errors caused by longer feed lines are avoided by using the 4-conductor connection.
ABK This stop cock specially designed for the FSA/FSK has a plug that is guided in a valve casing and that can be turned from the outside. Turning it by 90° closes the connection opening of the FSA/FSK. It is operated by screwdriver, from the side, above or below depending on the position of the ABK.
ABV Screwing the adjusting screw deeper into the valve casing closes the connection opening of the FSA/FSK (the screw can be loosened again subsequently). The screw is adjusted by means of an allen key (AF width 3).
1.2. APPLICATION:
Fluid level gauges FSA, fluid level sensors FSK and temperature switches TS are used to monitor and control levels of operating fluid. Areas of application are for example: Machine tools, system engineering, tanks for hydraulic, lubricating and cutting oils, and gearboxes.
