Data Sheet LS-800
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Data Sheet LS-800 - 1

FLOAT TYPE Large Size – Alloys Ordering is Easy! See Page B-26. Easy online ordering too! LS-800 Series – The General Purpose Workhorse for Water and Oils  Stainless Steel or Brass Mountings ved UL Appro roof losion-P Exp  1 to 6 Actuation Levels  Lengths to over 11 feet (3.4 m) Rugged construction and multiple options provide the LS-800 Series with exceptional versatility. Longer and more substantial than other metallic models, the LS-800 is capable of supporting larger, more buoyant floats, and is physically stronger for better reliability in contaminated or turbulent media. This series offers SPST or SPDT switches, and a choice of mountings, floats and materials that can be configured for a wide range of applications in water, oils, chemicals and corrosive liquids. LEVEL SWITCHES – MULTI POINT Temperature Sensing °F To save space and simplify wiring, we can GEMS can incorporate a temperature sensor in the end of the float stem on any model type LS-800. Two sensor types are available: Transducers for continuous output, and Thermostats for switch actuation. See Page B-25 for details. Adjustable Mounting Allows stem to travel up and down for fine tuning your actuation points. See next page. LS-800 switches are U.L. Approved for Class I, Division 2, Groups B, C, D hazardous locations They are also available with FM-approved, explosion-proof junction box for Class I, Division 1, Group D hazardous locations (Type 1 mounting excluded). Units must be specified with stainless steel floats and be assembled completely at GEMS. Trimod`Besta. 1. Mounting Types Each mounting type can be configured with stem lengths (LO) and float material indicated in the table below. Mountings are also continued on following page. Note: Sanitary flange mountings are also available, but not shown. Please contact factory. Type 1 mounting not FM approved. Stem and Mounting Material Max Length (Lo) Mounting Position Float Stops* Brass or 316 Stainless Steel 36˝ (91.4 cm) Flange: Carbon Steel or 316 S.S. Stem: 316 S.S. 140˝ (355.6 cm) Vertical ± 30° Inclination Brass Units: Beryllium Copper Grip Rings; Stainless Steel Units: S.S. ARMCO PH-15-7MO Grip Rings * Units greater than 72˝ overall length are supplied with collars with setscrews (made of same material as stem and mounting) in place of float-stop rings. Collars are optional on units less than 72˝ overall length. Units requiring 316 SS float stops must be special ordered with 316 SS collars instead of grip rings. In some instances, concentration of chlorine and other corrosive compounds in the media require the use of collar type float stops. Consult factory for details. † Type 1 mounting not FM approved. LS-800 Series / p1of5 / 3-APR-14 1   Subject to technical changes. Visit www.GemsSensors.com for most current information.

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Data Sheet LS-800 - 2

Level measurement A brand of Bachofen AG www.trimodbesta.com /P (Gems Sensors & Controls LS-800 Series - Continued 1. Mounting Types - continued Type 5 External Mounting units are ideal for tanks with limited access to tops or bottoms. LS-800-A Series Adjustable Mounting Available for LS-800 Series Mounting Types 2, 3 and 4. Special cinch-nut on mounting allows stem to travel up or down for fine tuning the actuation points. The extent of adjustment depends on unit length and distance from mounting to highest float stop. When ordering, specify “LS-800-A” as Series Type. Note: Maximum overall...

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Data Sheet LS-800 - 3

Level measurement A brand of Bachofen AG www.trimodbesta.com /P (Gems Sensors & Controls 3. Electrical Specifications Switch (N.O. or N.C.): SPST: 20 VA or 100 VA SPDT: 20 VA Lead Wires:#18 AWG, 24" L., Polymeric (except as noted in Wiring Color Code chart at right). Approvals: LS-800 Series switches are U.L. Recognized - File No. E45168; CSA Listed - File No. 30200 Typical Wiring Diagrams For clarity, only two actuation levels are shown in each group diagram. Wiring Color Code Tinted area designates U.L. Recognized wiring configurations. Notes: 1. Non-U.L. Recognized units (white areas)...

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Data Sheet LS-800 - 4

Optional Integrated Temperature Sensors LEVEL SWITCHES – MULTI POINT  Compatible with LS-700 and LS-800 Series Units  Thermostat Switches or Thermistor Versions Advantages of integrated temperature sensors: • Space Saving. • Fewer intrusions into the tank. • Electrical wiring emanates from a single source – eliminate multiple conduits. • Economical – typically less expensive than separate sensors. Look for units in this catalog with the temperature sensor icon: Control heating elements and liquid level with a single sensor. °F Thermistor for Continuous Indication – TM-800 and TM-700 •...

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