Small Size - Engineered Plastics LS-7 Series-Compact Side Mounts are the Solution to Many Small Tanks These low-cost units are ideal for high volume use in small tanks and vessels. Engineered plastics construction offers broad compatibility in water, oils and chemicals. LEVEL SWITCHES - SINGLE POINT Type 3 Internal Mounting Type 5 External Mounting Polypropylene, Nylon or VersaplastTM. ZIP CORD LEADWIRES, 24 EXTENDED Type 7 External Mounting Polypropylene, Nylon or VersaplastTM. 3.84 (97.5 mm) 4-1/4 (108 mm) 5/8 (16 mm) ZIP CORD STYLE 24 LEADWIRES GASKET (WHITE BUNA N INCLUDED) Polypropylene or Nylon; conduit connection. 1/2 NPT LEAD WIRES, 24 EXTENDED 4-1/2 (114 mm) N.O. N.C. 2-7/8 (73 mm) 5/8-11 THREAD 5/8 (16 mm) WRENCH FLAT 19/64 (7.5 mm) 2-3/4 (69.8 mm) LOCKING NUT (NYLON) 5/8 HEX Common Specifications Lead Wire Gauge: No. 22 AWG Mounting Attitude: Horizontal. * See "Electrical Data" on Page X-5 for more information. 1/2 NPT Approvals Switch Rating*: SPST, 20VA Media Compatibility UL NSF CSA ListedRecognized cUL Listed CE File No. File No. Recognized Mat. 30200 E45168 Std. 61 Material 2-7/8 (73 mm) Nylon X X X X Polypropylene X X X X Noryl(R) X X X VersaplastTM X X X X LS-7 Compatible Types Media Oil, Fuel, Hydrocarbons Nylon Broad Range of Chemicals and Water Polypropylene Limited Chemicals and Water X Oil, Antifreeze, High Temperatures, Corrosive Fluids, Various Chemicals Noryl(R) VersaplastTM Switch Operation Depending on the mounting position, the float on these switches can rise or lower with the liquid level. By rotating the switch 180, the switch operation can be Normally Open or Normally Closed (except Type 12). Types 3, 5, 7, 10 and 13 Normally Open FLOAT ARC ENVELOPE When the switch is mounted so that the float lowers with the liquid level, the switch is N.O. A-6 FLOAT PIVOTS STAY ABOVE WATER Type 12 - N.C. "Drop Float" Design Normally Closed When the switch is mounted so that the float rises with the liquid level, the switch is N.C. MAGNET WATER N.C. ACTUATION RANGE 25 to .50 45/64 REF. The LS-7 Type 12 is ideal for use on food warmers, hot water heaters, steam cookers, small boilers or wherever water evaporation occurs. The switch is used effectively for either high fluid level alarms or water make up systems. The units are made of Noryl(R), which carries NSF approval for use in potable water, and are supplied with FDA-approved Buna gaskets. Visit www.GemsSensors.com for most current information. Food Warmer FLOAT TYPE Nylon is ideal for oils and fuels. NSF Standard 61 polypropylene is ideal for potable water and broad chemicals. Type 10 External Mounting Type 12 Internal Mounting Externally mounts through and seals non-threaded holes using a HNBR compression gasket. 4.093 (104 mm) ZIP CORD LEADWIRES 24 EXTENDED 3-59/64 REF. (100 mm) ZIP CORD LEAD WIRES 24 - 26 EXTENDED BUNA GASKET 11/16 DIA. (18 mm) 3-51/64 (94 mm) 1-1/8 (29 mm) N.C. .85 DIA. (21.6 mm) N.O. N.C. 1/2 WRENCH FLATS 5/8-11 THREAD .10 (2.5 mm) .33 (8.4 mm) Polypropylene or Nylon. N.O. 1.48 (37.6 mm) .90 (23 mm) Type 13 Internal Mounting Side mount "Drop Down" design for calcifying hot water applications. NSF compliant Noryl(R). 3.85 (97.8 mm) 9/16-24 THD. JAM NUT (NYLON) LOCKING NUT GASKET, HNBR (FDA Compliant) LEVEL SWITCHES - SINGLE POINT VersaplastTM is ideal for corrosive fluids, hot water, antifreeze, chemicals and oils. 1-5/64 (27 mm) NUT, 5/8-11 Note: Recommended hole size = 7/8 dia. x 1/32 - 5/32 thick panel. 2-43/64 (69 mm) GASKET (BUNA 'N') 2-23/32 REF. (69 mm) How To Order - Select Part Number based on specifications required. Mounting Type 3 5 5 - BSP 7 10 Materials* Stem and Mounting Float Lead Wire Jacket Min. Liquid Sp. Gr. Operating Temperature -40F to +250F (-40C to +121.1C) -40F to +225F (-40C to +107.2C) -40F to +250F (-40C to +121.1C) -40F to +225F (-40C to +107.2C) -40F to +250F (-40C to +121.1C) -40F to +300F (-40C to +148.9C) Nylon Polypropylene VersaplastTM Polypropylene Nylon VersaplastTM Teflon(R) .65 .55 .80 .55 .65 .80 VersaplastTM TPE .80 -40F to +250F (-40C to +121.1C) .55 .65 .55 .65 -40F to +225F (-40C to +107.2C) -40F to +250F (-40C to +121.1C) -40F to +225F (-40C to +107.2C) -40F to +250F (-40C to +121.1C) TPE TPE Polypropylene Nylon Polypropylene Nylon TPE TPE Operating Pressure, Max. Float Arc Envelope Part Number 100 psi @ 70F (6.8 bar @ 20C) 2.20 165570 164520 182600 100 psi @ 70F (6.8 bar @ 20C) 1.25 131100 140620 177100 100 psi @ 70F (6.8 bar @ 20C) 1.25 189422 100 psi @ 70F (6.8 bar @ 20C) 1.50 50 psi @ 70F (3.4 bar @ 20C) 2.08 160450 160460 165800 165900 12 Noryl(R) TPE .80 -40F to +225F (-40C to +107.2C) 100 psi @ 70F (6.8 bar @ 20C) .70 191080 13 Polypropylene TPE .55 -40F to +225F (-40C to +107.2C) 100 psi @ 70F (6.8 bar @ 20C) 2.20 197050 * Polysulfone and Ryton(R) R-4 are available upon request. Thermoplastic Elastomer Zip Cord, 22 AWG. Note: NSF C2 Versions available. Contact factory. See alloy versions on next page. - Stock Items. Visit www.GemsSensors.com for most current information. A-7