专业销售科普乐传感器

ASC5 RV3-4-V0-L120-8-B23A

KSR Magnetic Float Switches
KSR Magnetic Float Switches are used to control distinct levels of a
liquid. They are based on the float principle with inpidual contacts for
every level to be monitored.
A float with a built-in magnetic system actuates a small reed contact
through the wall of the guide tube. Thus the switching operation is
without direct contact to the liquid, free of wear and tear, and does not
require any power supply.
KSR Magnetic Float Switches are available with multiple switch points.
• Contact denomination always refers to rising level of the liquid:
• S - closing on rising level
• O - opening on rising level
• U - change-over
• By using one float up to a maximum of 2 switch points the
switching behaviour is bistable i.e. the switching state will remain
the same even when the liquid moves further up or down.
• Contacts are volt-free.
Technical advantages
• The simple operating principle is suitable for a wide variety of
applications.
• Suitable for virtually all liquids.
• Measurement of liquid levels independent of physical or chemical
changes of the liquid, e.g. foam, conductivity, dielectric constant,
S.G., pressure, vacuum, temperature, vapour, condensation,
bubbles, boiling effects.
• Universal signal processing
PLC
Initiator circuit (NAMUR)
Signal amplifiers/Protection relays
2-point controls
• AS-Interface available, Ex/non-Ex.
• Multiple switch points in one unit (up to 8).
• High repeatability of set points.
• Long service life.
• Suitable for rough environments.
• Interface and product level measurement possible
at Δ-S.G. ≥ 50 kg / m3.
• Simple installation and commissioning, maintenance-free.
• Application limits:
T = -196 °C to + 300 °C
P = vacuum to 100 bar
S.G. ≥ 400 kg/m3
• High availability of corrosion resistant materials for applications in
all industries:
Chemical, petrochemical, and pharmaceutical industry, liquid
natural gas, off-shore, ship-building, power plants, manufacturing
industry, water treatment, food and beverages.
• Application specific designs available.
• Explosion-proof designs.
• Float switches are simple devices without certification according
EN 50020/5.4.
As such, they are allowed to be used in Ex-area ‘Zone 1’, on
condition, that they work with a certified intrinsically safe circuit
in protection class EEx ib or higher

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