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User’s Guide
®
http://www.omega.com
e-mail: info@omega.com
LV-1101 & LV-1102
Non-Magnetic Liquid Level Switches
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MADE IN USA WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s Cus
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TM omega.com ® OMEGA SM OMEGAnet On-Line Service Internet e-mail http://www.omega.com info@omega.com Servicing North America: USA: One Omega Drive, Box 4047 ISO 9001 Certified Stamford, CT 06907-0047 Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: info@omega.com Canada: 976 Bergar Laval (Quebec) H7L 5A1 Tel: (514) 856-6928 FAX: (514) 856-6886 e-mail: canada@omega.com For immediate technical or application assistance: SM USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA SM Customer S
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Unpacking Instructions Remove the Packing List and verify that you have received all equipment, including the following (quantities in parentheses): LV-1101 or LV-1102 level switch (1) Operator’s Manual (1) If you have any questions about the shipment, please call the OMEGA Customer Service Department. When you receive the shipment, inspect the container and equipment for signs of damage. Note any evidence of rough handling in transit. Immediately report any damage to the shipping agent. NOTE Th
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General Description ® The OMEGA LV-1100 Series Liquid Level Switches feature a non-magnetic design suitable for application where magnetic particles (ie: rust) are present. The LV-1100 Series also feature rugged metal construction and a buoyancy adjustment to allow the unit to be used with fluids down to SP.GR. = .06. The LV-1101 features a single float design; the LV-1102 featurs a two float design. Features • Rugged Industrial Design • Non-Magnetic Design – Suitable For Rusty Environments • 15
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Specifications Working Fluid Specific Gravity Range: Adjustable between 0.6 and 1.0+ Nom. Working Pressure/Temperature: 300 PSIG @ 180˚F max. Liquid Level Change 1 / To Activate Switch: 4 inch Relay Switch: SPDT 15A @ 125 or 250 Vac; 10,000,000 operations median Option “D”: Dual SPDT relays; nominal difference flow between the two relay actuation points is 5% Electrical Cable Fitting: Water resistant strain relief for cable diameter .250" ±.025" Wetted Parts: Model LV-1101: red brass body, pho
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Installation The LV-1101 Series Level Switches are supplied with a 2" x 1" TT bushing threaded in place with 2 to 3 wraps of Teflon tape, which must be intact or renewed if bushing and switch are separated before assembly in tank. Apply a minimum of 2 to a maximum of 3 wraps of Teflon tape to the male threads of the bushing. This is especially important if the unit is to be used in metal fittings where coarse threads could bind if not lubricated. Thread the unit into the tank and tighten until a
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WARNING THESE DEVICES ARE NOT EXPLOSION-PROOF. IF THESE LEVEL SWITCHES ARE INTENDED FOR USE WITH FLAMMABLE LIQUIDS, OR IN HAZARDOUS AREAS, THE MECHANICAL RELAY INSIDE CAN BE MADE INTRINSICALLY SAFE WHEN PROPERLY WIRED TO AN INTRINSICALLY SAFE RELAY SWITCH, SUCH AS OMEGA’S LVC 550 SERIES INTRINSICALLY SAFE RELAYS. THEY MUST BE INSTALLED IN ACCORDANCE WITH THE NATIONAL ELECTRIC CODE (NEC) BY PERSONNEL EXPERIENCED WITH INTRINSIC SAFETY WIRING. 2. WIRING THE LV-1101/1102 W/OPTION ‘D’ WITH STRAIN REL
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Figure 1: Wiring Schematic for power applied to the load when the liquid level is LOWER than the set point (power to the load is interrupted when the liquid level is ABOVE the set point). Figure 2: Wiring Schematic for power applied to the load when the liquid level is HIGHER than the set point (power to the load is interrupted when the liquid level is BELOW the set point). 5
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Notes 7
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Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors Infrared Pyrometers PRESSURE/STRAIN FORCE Transducers & Strain Gauges Load Cells & Pressure Gauges Displacement Transducers Instrumentation & Accessories FLOW/LEVEL Rotamet
