70307030流量开关

GeneralFunctionSpecifications andorder numbers

The exceptional reliability of the 7030 LevelSwitch makes it very suitable in many highlyautomated systems to provide additionalprotection against control system failures,preventing pumps from dry running etc.Traditional mercury switches are replacedwith up-to-date environmently friendlymaterials in the 7030 Float Switch.

Features • Environmental friendly - no mercury!

• The float housing is made frompolypropylene for durability.

• Very reliable electromechanical contactsystem - guaranteed up to 20 millionoperations.

• The changeover switch can handle loadsup to 16 A AC so a motor starter can beconnected directly.

• Delivered with 39 ft of rugged, oilresistant cable.A hermetically sealed microswitch is

activated by a moving counterweight whenthe float changes its position in the fluid.The changeover hysteresis can be adjusted by means of a counterweight placed on thecable.The counterweight also ensures that the7030 float switch is always correctlypositioned and makes the bend of the cable less sharp.