Low-Cost ConduCtivity LeveL switCh systems For Liquids only All products shown smaller than actual size. LVC551 LVC512 LVC521 LVC511 LVC-E11 electrode a single control module, plus LVC Series 2 electrodes and a tank reference, is required. When several applications or levels are necessary within a single tank, an LVC-N3-SS, SS threaded electrode is needed for multi-electrode assembly shown smaller than each level (plus tank actual size. reference), plus a U No Moving Parts multi-electrode holder for Long Life and a control module K for each differential or U Wide Chemical single-level application. Compatibility Typically, potable U Works for water, condensate, Conductive Liquids acids, and water- based chemicals (inorganic The LVC500 Series electronic level chemicals) have sufficient controls should be used whenever a conductivity. Non-aqueous liquid level needs to be maintained, liquids, such as oils and such as pumping down an industrial other hydrocarbons, cannot sump, or indicated, such as a be measured. holding tank high-level alarm. A system consists of 3 components: (1) cut-to-length threaded electrode rods (2) single or multi-electrode holder (3) remote electronic module(s). Note: The LVC500 Series operates on Always treat hazardous areas with respect If the electrodes or float switch is located in a simple conductance principle a hazardous area, an intrinsically safe control module must be used. Intrinsically safe controls must be installed by experienced personnel familiar with intrinsic safety wiring, and whereby a small electrical current installation must be in accordance with the National Electrical Code (NEC). The control must is passed through the conductive be mounted in a non-hazardous location with the wiring to the level probes or float switch liquid between 2 electrodes or an going into the hazardous atmosphere. Intrinsically safe wiring must be separated from electrode and a metallic tank wall. non-intrinsically safe wiring, and the length of your 14 or 16 gage copper wire must not exceed the specifications listed in the current installation manual. Consult your local For applications that require a electrical code inspector for further details. separate start and stop point, K-Xelectronics modules All products shown smaller than actual size. mounting Assemblies LVC521 LVC551 U SPDt Relay Output U Fully Field Selectable U t ransparent Case for Viewing Relay Status LVC512 Low-voltage probe circuit SPDT relay output Interface to pumps, valves, LVC-E11 or alarm systems electrode LVC511 Field-selectable latching/ non-latching operation Field-selectable high/low alarm, pump-up/pump-down Differential Service: LVC510 Series: For fill or drain applications. When the liquid rises to the electrode on See-through Lexan case for terminal H, the control energizes, viewing relay status LED changing the state of the load Plug-in module, socket included contacts. The control remains Screw terminal connections energized until the liquid level for easy wiring MOuNtINg ASSEMBLIES recedes below electrode on Single Electrode: terminal L. The control then de- LVC512 Model: The LVC-S Series comprises single energizes, returning load contacts Field-settable sensitivity to match electrode holders with exposed to original state. a variety of liquids connection. UL-approved rubber boots Required f or distilled water Inverse Mode: are available for connection protection. (1 M max) Shipping Weight: Control energizes with power, LVC-S unit, 170 g (6 oz) changing the state of the load LVC521 Model: Overall Length: 82.6 mm (3.25 ) contacts. All other responses are Open circuit board construction Multiple Electrodes: the opposite of the response given Low cost, OEM style The LVC-N and LVC-F mounting by direct-mode operation. Inverse Spade terminal connections assemblies feature a gasketed, mode is normally used for pump-up 1 epoxy-coated, die-cast aluminum Designed to mount on 16 or high-level alarm applications. junction box, and include the proper backplate with supplied number of electrode holders. plastic standoffs See chart below for additional information. Relay status LED SPECIFICAtIONS Electrodes Supply Voltage: 102 to 132 Vac LVC550 Series: The LVC-E electrodes come standard (110 to 132 Vac for LVC552), 50/60 Hz in 316 SS, but are available in a wide standard 240 and 24 Vac optional) Intrinsically safe range of materials. Electrodes thread Ambient temperature: Approved for Class I and II, into couplings on LVC-S, LVC-N, and -40 to 65C (-40 to 150F) Division 1, Groups A through G LVC-F mounting assemblies. Switch-Point Hysteresis: 8 A relay output 1 1 Electrode Diameter: 6.35 mm ( 4 ) 1.6 mm ( 16 ) LVC551: FM approved 1 1 4 thread length LVC552: UL approved Relay time Delay: 2 second delay on Electrode Weight: Can be used with any rising level See chart below for additional information. 0.25 g/mm (0.167 lb/ft) non-powered switch closure Electronic Modules Dimensions: mm (inch) Shipping Weight Electronics Operation Direct LVC Power H W L g (oz) Model Consumption Mode Single-Level Service: 511 4.5 W 88.9 (3.5) 50.8 (2) 58.7 (2.31) 487 (20) Single-Level Service: 512 4.5 W 88.9 (3.5) 63.5 (2.5) 66.7 (2.62) 487 (20) 521 4.5 W 34.9 (1.37) 63.5 (2.5) 55.6 (2.19) 487 (20) For high or low alarms or cutoffs. 551 4.0 W 54 (2.12) 85.7 (3.37) 111.2 (4.18) 765 (27) When the liquid rises to the 552 1.7 W 54 (2.12) 85.7 (3.37) 111.2 (4.18) 765 (27) electrode on terminal H, the control energizes, changing the state of the Multiple Electrode Assemblies load contacts. The control remains Housing Dimensions: mm (inch) No. of Housing energized until the liquid level LVC Model Electrodes H W L Conduit Size recedes below electrode on NX-BR/FX-BR 1 57.2 (2.25) 57.2 (2.25) 57.2 (2.25) NPT terminal H. The control then NX-BR/FX-BR 2 to 4 82.6 (3.25) 82.6 (3.25) 60.4 (2.37) NPT de-energizes, returning load contacts to original state. NX-BR/FX-BR 5 to 7 101.6 (4.0) 101.6 (4.0) 63.5 (2.5) NPT K-X