WIKA RSB 背部安裝永磁式不銹鋼浮球液位開關自由選擇開關位置_液位開關_物位儀表_儀器、儀表_貨源

WIKA RSB 背部安裝永磁式不銹鋼浮球液位開關

自由選擇開關位置

Float Switches with Permanent Magnet
For Lateral Mounting
Model RSB

Float Switches with Permanent Magnet,
for lateral mounting, Model RSB

    Applications
    Mounting on engines, tanks, vessels or enclosures,wher, due to a lack of space, installation within them is not possible
   Use for turbulent fluid levels such as in oil sumps in large engines, gearboxes, etc.
    Pump/level control and monitoring for defined filling levels
    Chemical industry, petrochemical industry, natural gas, offshore, shipbuilding, machine building, power generating equipment, power stations
   Process water and drinking water treatment, food and beverage industry

   Special Features
    Freely selecable switch position through fixing the float switch at the required level
    Large scope of application due to the simple, proven functional principle
   For harsh operating conditions, long service life

   Operating limits:
     - Operating temperature: T = -30 ... +300 °C
     - Working pressure: P = vacuum to 6 bar
     - Limit S. G.: ρ ≥ 700 kg/m3

   Description
    In a reference vessel (bypass chamber), a float with a permanent magnet moves on a guide tube in relation to the liquid level, following the principle of communicating tubes.
    Within the guide tube is fitted a reed contact (inert gas contact), which is energised, through the non-magnetic walls of the float and guide tube, by the approach of the float magnet. By using a magnet and reed contact the switching operation is non-contact, free from wear and needs no power supply. The contacts are potential-free.

The switch functions always refer to a rising liquid level: normally open / normally closed / change-over contacts.
The float switch is simple to mount and maintenance-free, so the costs of mounting, commissioning and operation are low.

   Further special features
    Guide tube and float made of stainless steel 1.4571
    Reference vessel made of aluminium AlMg5 or red bronze Rg5
   Universal signal processing: connection direct to a PLC is possible, NAMUR connection, signal amplification / contact protection relays
   Works independently of foaming, conductivity, dielectricity, pressure, vacuum, temperature, steam, condensation, blistering, boiling effects and vibrations
   Maximum 2 change-over contacts
    Exact repeatability of the switch points
    Float switches with permanent magnets qualify as passive electrical equipment in accordance with DIN IEC 60 079-11 and can be installed in 'Zone 1' hazardous areas without certification, so long as the equipment is operated in a certified intrinsically safe circuit with a minimum explosion protection of EEx ib

   Options
    Customer-specific solutions
    Reference vessel in another design made of stainless steel 1.4571, with other process connections and with up to 6 switch points