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 Ro H S G EM Ro H S G (R) S CO PLIAN M T EM EM G T Polypropylene, Nylon or VersaplastTM. ZIP CORD LEADWIRES, 24 EXTENDED G T Ro H S (R) S CO PLIAN M Ro H S (R) S CO PLIAN M Ro H S G Type 7 External Mounting EM T EM (R) S CO PLIAN M T Polypropylene or Nylon; conduit connection. 4-1/4 (108 mm) 5/8 (16 mm) ZIP CORD STYLE 24 LEADWIRES GASKET (WHITE BUNA N INCLUDED) (R) S CO PLIAN M G T Polypropylene, Nylon or VersaplastTM. 3.84 (97.5 mm) EM Ro H S (R) S CO PLIAN M 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 Switch Rating*: SPST, 20VA Lead Wire Gauge: No. 22 AWG Mounting Attitude: Horizontal. RoHS: In compliance with EU-direc- Nylon tive 2011/65/EC requirements for Polypropylene chemicals and substances. * See "Electrical Data" on Page X-5 for more information. 1/2 NPT Approvals Material 2-7/8 (73 mm) Media Compatibility UL NSF CSA ListedRecognized cUL Listed CE File No. File No. Recognized Mat. 30200 E45168 Std. 169 X X X 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 X 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 LS-7 Series / p1of4 / 23-MAR-15 FLOAT TYPE Nylon is ideal for oils and fuels. NSF Standard 169 polypropylene is ideal for potable water and broad chemicals. Type 10 External Mounting Type 12 Internal Mounting LEVEL SWITCHES - SINGLE POINT VersaplastTM is ideal for corrosive fluids, hot water, antifreeze, chemicals and oils. Type 13 Internal Mounting Ro H S G EM Ro H S (R) S CO PLIAN M T G Ro H S G EM (R) S CO PLIAN M T EM Ro H S G (R) S CO PLIAN M T EM Ro H S G Externally mounts through and seals non-threaded holes using a HNBR compression gasket. 4.093 (104 mm) (R) S CO PLIAN M T ZIP CORD LEADWIRES 24 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) EM Polypropylene or Nylon. 3-59/64 REF. (100 mm) ZIP CORD LEAD WIRES 24 - 26 EXTENDED 3.85 (97.8 mm) T G T Side mount "Drop Down" design for calcifying hot water applications. NSF compliant Noryl(R). (R) S CO PLIAN M Ro H S (R) S CO PLIAN M N.O. 1.48 (37.6 mm) .90 (23 mm) EM 9/16-24 THD. JAM NUT (NYLON) LOCKING NUT GASKET, HNBR (FDA Compliant) 1-5/64 (27 mm) NUT, 5/8-11 Note: R ecommended 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) Polypropylene Nylon Polypropylene Nylon TPE TPE TPE TPE Float Arc Envelope 100 psi @ 70F (6.8 bar @ 20C) 2.20 100 psi @ 70F (6.8 bar @ 20C) 1.25 100 psi @ 70F (6.8 bar @ 20C) 1.25 100 psi @ 70F (6.8 bar @ 20C) 1.50 50 psi @ 70F (3.4 bar @ 20C) 2.08 Part Number 165570 164520 182600 131100 140620 177100 189422 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 See alloy versions on next page. *Polysulfone and Ryton(R) R-4 are available upon request. Thermoplastic Elastomer Zip Cord, 22 AWG. Note:NSF 169 Versions available. Contact factory. Operating Pressure, Max. - Stock Items. LS-7 Series / p2of4 / 23-MAR-15 Visit www.GemsSensors.com for most current information. A-7 Small Size - Alloys LS-7 Series - Compact Alloy and Alloy/Plastics Side Mounts LEVEL SWITCHES - SINGLE POINT Built for durability, our LS-7 Series switches utilize stainless steel, or zinc bodies. Ideal for any small tank or vessel destined for a rugged environment. All-stainless steel material of construction of Types 9 and 11 is generally recognized as safe with FDA for food contact regulations. Type 6 - External Mounting Type 8 - External Mounting Ro H S G EM (R) S CO PLIAN M T Ro H S G EM (R) S CO PLIAN M T Ro H S G EM (R) S CO PLIAN M T Ro H S G EM (R) S CO PLIAN M T Zinc alloy body with polypropylene or nylon float. SAE Mounting. Zinc alloy body with nylon or polypropylene float. Type 9 - External Mounting Type 11 - Internal Mounting Ro H S G EM (R) S CO PLIAN M T Ro H S G EM (R) S CO PLIAN M T Ro H S G EM (R) S CO PLIAN M T Ro H S G EM (R) S CO PLIAN M T 316 Stainless Steel body with 316 SS, nylon or polypropylene float. 316 Stainless Steel body with 316 SS float. Dimensions Type 6 Type 8 LEAD WIRES, 24 EXTENDED 1.40 (36 mm) REF. RoHS: In compliance with EU-directive 2011/65/EC requirements for chemicals and substances. 1/2 NPT #22 AWG ZIP CORD LEAD WIRES 24 EXTENDED Type 9 5/8 WRENCH FLAT Lead Wire Gauge: No. 22 AWG Mounting Attitude: Horizontal. 1.00 HEX 7/8 (22 mm) -14UNF THD LEAD WIRES, 24 EXTENDED Switch Rating*: SPST, 20VA 1-1/32 REF. (26.2 mm) 5/16 REF. (8 mm) 11/16 (17 mm) REF. 7/8 (22 mm) -14 JAM NUT Common Specifications 3-29/32 REF. (99.2 mm) 3.38 (86 mm) REF. *See "Electrical Data" on Page X-5 for more information. Type 11 1-5/8 REF. (41.3 mm) 5-5/16 REF. (135 mm) 1/2 NPT 5/8 DIA. REF. (15.9 mm) .83 REF. (21 mm) LEAD WIRES, 24 EXTENDED 4-9/16 REF. (116 mm) 5/8 (16 mm) -11 JAM NUT WITH VITON GASKET 5/8 (16 mm) DIA. REF. 5/8 (16 mm) -11 THD A-8 Visit www.GemsSensors.com for most current information. LS-7 Series / p3of4 / 23-MAR-15 FLOAT TYPE Depending on the mounting position, the float on these switches can either rise or lower with the liquid level. By rotating the switch 180, the switch operation can be Normally Open or Normally Closed. Normally Open Normally Closed FLOAT ARC ENVELOPE When the switch is mounted so that the float lowers with the liquid level, the switch is N.O. When the switch is mounted so that the float rises with the liquid level, the switch is N.C. LEVEL SWITCHES - SINGLE POINT Switch Operation How To Order - Select Part Number based on specifications required. Mounting Type 6 8 9 11 Materials Stem and Mounting Zinc Alloy* Zinc Alloy* 316 Stainless Steel Float Nylon Polypropylene Nylon Polypropylene Lead Wire Jacket TFE TFE 316 S.S. Nylon TFE Polypropylene 316 Stainless Steel Teflon (R) Min. Liquid Sp. Gr. Operating Temperature Operating Pressure, Max. Float Arc Envelope Part Number .65 -40F to +250F (-40C to +121C) 100 psi @ 70F 1.36 155660 .75 -40F to +225F (-40C to +107C) 150 psi @ 70F 1.36 179870 .65 -40F to +250F (-40C to +121C) 100 psi @ 70F 1.40 160950 .55 -40F to +225F (-40C to +107C) 150 psi @ 70F 1.40 162795 .80 -40F to +250F (-40C to +121C) 300 psi @ 70F 1.43 164870 .65 -40F to +250F (-40C to +121C) 100 psi @ 70F 1.40 164850 .55 -40F to +225F (-40C to +107C) 100 psi @ 70F 1.40 164860 .80 -40F to +250F (-40C to +121C) 300 psi @ 70F 1.65 179445 Thermoplastic Elastomer Zip Cord. - Stock Items. *Zinc Alloy Material Note: When mounted in certain cathodic metals, including stainless steel, and used in waterbased liquids, galvanic corrosion may occur. Consult factory for information. LS-7 Series / p4of4 / 23-MAR-15 Visit www.GemsSensors.com for most current information. A-9