Level Switches - Multi-point - GEMS SENSORS & CONTROLS - #2

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FLOAT TYPE
LS-350 Series
Combination Siphon and Level Sensor
Ordering is Easy! See Page B-13. Easy online ordering too!
Multi-Level Switch Options Up to 4 Actuation Points Integral Siphon or Fill Tube Customized Mountings Custom Configurable
Save valuable space and costly installation/maintenance time with these highly customizable sensors. LS-350 units combine a siphon tube and up to four liquid level sensors as a single component. The complete unit installs through a single opening in the fluid container.
Simple and clean — a single component that enables remote monitoring of a tank's fluid content while allowing access for container filling and draining. These units are custom configured to fit the container of your choice, with a wide range of mountings, fluid and electrical connectors, materials and lengths.
Typical Applications
• Immuno-Chemistry/Cytology
• Hematology
• Automated Urine Analysis
• Laboratory Automation
Specifications
t—
5
Q.
5
I
i
LU
_l LU
> LU
Materials
Stem and Mounting
Polysulfone or NoryP
Floats
Polypropylene or Buna N
Gasket
Buna N
Operating Temperature
Buna N Float
221°F(105°C) Max.
Polypropylene Float
210°F(99°C) Max.
Switch
SPST
Length
15" (380 mm) Max., Longer units available on request
Mounting Attitude
±30° from vertical
Actuation Level Points
6 Max.
Operating Principle
The LS-350 Series provides two functions: liquid level monitoring and fluid fill or extraction access. The latter function is accomplished with an integrated siphon tube that runs parallel to the float sensor stem and through the top mounting; it is commonly topped with a barb (or customer specified) fitting for the connection of flexible tubing. Fluid level sensing is accomplished with magnetic reed switch technology. One or more floats encircling a stationary stem are equipped with powerful, permanent magnets. As a float rises or lowers with liquid level, the magnetic field generated from within the float actuates a hermetically sealed magnetic reed switch mounted inside the stem. The switch actuation may be used for alarm, solenoid, pump or other fluid control operations.
Magnetic Field Actuates Reed Switch
Float Stop Collar
Hermetically-Sealed Magnetic Reed Switch
B-10 1

pageCatalog pdf di En 2012-05-19-09