LEVEL SWITCHES SINGLE POINT Large Size Alloys Side Mounting Switches Solve the Problem of Inaccessible Tank Tops & Bottoms Typical Installation These units solve the problem of point level sensing in tanks with inaccessible tops or bottoms, or at intermediate locations in larger tanks. Operation is positive and dependable. The ofl at pivots with changing liquid level, displacing a shuttle which magnetically actuates a hermetically sealed switch within the unit. Installation is through the tank side at the detection point. LS-2050 Series Brass and Buna N LS-2050 Series All-Stainless Steel LS-52100 Series All Stainless Steel General purpose materials designed to Ultimate strength: for pressures to 900 Rugged, all-stainless steel unit offers broad provide reliable service in oils and water. PSIG and temperatures to 300F (148.9C). chemical compatibility at temperatures to Explosion-proof models available. 300F (148.9C). Explosion-proof models available. Dimensions LS-2050 Series LS-52100 Series APPROX. ACTUATION LEVEL CONTACTS APPROX. ACTUATION LEVEL CONTACTS TRANSFER ON ASCENDING FLUID LEVEL APPROX. ACTUATION LEVEL TRANSFER ON ASCENDING FLUID LEVEL CONTACTS TRANSFER ON 5-1/16 ASCENDING FLUID 5-1/16 (128.6 mm) 1/2 NPT 1 NPT 1 NPT LEVEL (1/4 OF ) (128.6 mm) C L 1 NPT 5/8 1 1 (15.9 mm) (25.4 mm) UP (25.4 mm) 2-3/8 1/8 3-5/8 7/8 3-1/4 (60.3 mm) APPROX. (22.2 mm) (82.5 mm) (92.0 mm) APPROX. 1-3/8 (34.8 mm) 3-7/16 3-7/8 1/8 4-1/8 (87.3 mm) (98.4 mm) 5-9/32 APPROX. (134.1 mm) (104.8 mm) APPROX. 2 DIAMETER BALL FLOAT Approximate de-actuation level, nominal (based on a liquid specific gravity of 1.0). * Switch Mounting dimensions are the same as shown on the LS-2050 Series drawing (far left). Explosion-Proof Versions CSA or FM Approved versions are available in all-stainless steel configurations only. For Remote Alarms Typical Example (P/N 55690 Shown): See Page E-29 Top View Adjustable Volume Indoor Outdoor 1/2 NPT PORTS Solid-State 3-1/2 DIA. REF. 13/16 REF. Side View A-16 Visit www.GemsSensors.com for most current information. UL Approved Explosion-ProofFLOAT TYPE Common Specifications Electrical Termination: No.18 AWG, 24 L., Polymeric Lead Wires. Approvals: LS-2050 Series Switches are U.L. Recognized File No. E45168 and are CSA Listed. Explosion-proof units are approved for Class I, Division 1, Group D hazardous areas. Mounting Attitude: Horizontal, 15. Performance LS-2050 Series LS-52100 Series Brass Mounting/Buna-N Float All-Stainless Steel Water: to +180F (82.2C) Operating Temperature -40F to +300F (-40C to +148.9C) Oil: -40F to +250F (-40C to +121C) Pressure, PSIG Max. 70F 150 900 500 Min. Liquid Sp. Gr8 .9 .85 Switch Differential in Liquid 1/2 Minimum Approximately 3/4 How To Order Select Part Number based on specifications required. Materials Part Numbers Series 1 Standard With Bellows Explosion-Proof Switch Stem and Other Number Float Versions (Details Below) Mounting Wetted FM 316 Stainless Steel, Brass Buna N Beryllium Copper, SPDT, 20 VA 30288 Teflon , Ceramic LS-2050 SPDT, 20 VA 30290 175650 55690 316 316 Stainless Steel, 2, 4 Stainless Stainless SPST, 100 VA, N.O. 48068 Teflon , Ceramic Steel Steel 2, 4 SPST, 100 VA, N.C. 48069 SPDT, 20 VA 52100 121753 316 304 430 Stainless Steel, 3 LS-52100 Stainless Stainless SPST, 100 VA, N.O. 116971 Teflon , Ceramic Steel Steel 3 SPST, 100 VA, N.C. 116972 Notes Stock Items. 1. See Electrical Data on Page X-5 for more information. 2. Not CSA Approved. 3. Not U.L. Recognized or CSA Approved. 4. UL Resistive Rated A-17 Visit www.GemsSensors.com for most current information. LEVEL SWITCHES SINGLE POINT