LS-350 Sériés Combination Siphon and Level Sensor
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FLOAT TYPE LS-350 SeriesCombination Siphon and Level Sensor ► 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 Materials Stem and Mounting Polysulfone or Noryl® Floats Polypropylene or Buna N Operating Temperature Buna N Float_221°F(105°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. LS-350 Series / pi of4 / 3-APR-14 Visit www.GemsSensors.com for most current information. B-

1. Mounting Types Each mounting type can be configured with stem lengths (L0) and as indicated below. Flange is moveable, allowing stem and float position to be adjusted when installed. May be bonded into set position if desired. Designed for consistant use in same type of container. Buna N gasket provides snug seal. LEVEL SWITCHES - MULTI POINT 3. Electrical Specifications Typically, one float is reguired for each point at which you need a switch action to occur. The number of actuation levels available depends on the Group Type Wiring selected; see below. Group I Wiring: 1 to 4 Actuation...

6. Actuation Level Dimensions * Actuation level distances and L0 (overall unit length) are measured from inner surfaces of mounting plug or flange. See mounting types on page B-11 for L0 reference point. ** Length Overall (L0) = L, + Dimension D. See Mounting Types for Maximum Length values. Switch actuation levels are determined following the guidelines below. A = Minimum distance to highest actuation level. B = Minimum distance between actuation levels. C = Minimum distance between two actuation levels with one float (Note: One float for two levels can be used only when low level is N.C....

860-747-4244 Photocopy This Form Use one form for each product type you are selecting. This form may also be completed online at gemssensors.com for RFQ. This is a □ Request for a Quote Name □ Order P.O.# Quantity Needed__ Date Required / / Shipping Method:__ Company. Street _ LS-350 Engineered Plastics Custom Length with Siphon Tube Float Type Level Switch Check List Application Environmental Conditions This information is essential to the accurate and proper operation of your GEMS configurable sensor. Please complete fully and accurately before ordering. 4. Specific Gravity: Minimum...