AUTOMATION P R O D U C T S GROUP, INC. Operator’s Manual LFE Series Industrial OEM Low Cost Liquid Level Switches Rev. A1, 4/07 Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • E-mail: sales@apgsensors.
LFE Series Rev. A1, 4/07 Table of Contents Warranty .............................................................................................................3 Introduction ......................................................................................................4 Specification......................................................................................................4 Installation Location .......................................................................................
Rev. A1, 4/07 LFE Series • Warranty and Warranty Restrictions APG warrants its products to be free from defects of material and workmanship and will, without charge, replace or repair any equipment found defective upon inspection at its factory, provided the equipment has been returned, transportation prepaid, within 24 months from date of shipment from factory.
LFE Series Rev. A1, 4/07 • Introduction The miniature magnetic level sensors are used for liquid level detection. They have been designed for reliable operation in small tanks and containers. Their rugged design and careful engineering make them the optimum solution for OEM and large volume applications. • Specifications Operational Versions LFE-11P-0A ........................................ for water - PP, 10 VA, NC LFE-11P-0B .........................................
Rev. A1, 4/07 LFE Series • Specifications (continued) Characteristics Switch Rating (resistive load) (50 VA): Max contact rating .......................... 50 VA AC; 50 W DC Max current ........................................ 0.5 A AC; 0.5 A DC Max voltage........................................ 300 V AC; 300 V DC Life expectancy ................................. 107 operations (at 12 VDC, 5 mA) Switch Rating (resistive load) (10 VA): Max contact rating ..........................
LFE Series Rev. A1, 4/07 • Installation Location Locate the LFE at the position where the liquid level variation will actually make contact with it. DO NOT locate near liquid inlets/outlets. If there is turbulence, use a time delay relay to dampen the switch action. Figure A Figure B LFE-XXX-XA (Switch closes as level falls), see Figure A LFE-11R LFE-12R LFE-11P Close as level falls 18 28 15 Open as level rises 16.5 26.5 13.5 LFE-12P 23 21.
Rev. A1, 4/07 LFE Series • Wiring Wiring shall be in accordance with all local codes. Lead wires are #22 AWG, UL listed (UL1430). APG recommends the use of solderless lugs for Black Black Yellow Yellow Switch Rating (Resistive) • Max capacity 50 VA, 50 W • Max current 0.5 A AC, 50 A DC • Max voltage 300 VAC, 300 VDC Switch Rating (Resistive) • Max capacity 10 VA, 10 W • Max current 0.2 A AC, 0.3 A DC • Max voltage 3100 VAC, 100 VDC Note: Max pull load of the lead wire is 19.6 N.
AUTOMATION P R O D U C T S GROUP, INC. APG...Providing tailored solutions for measurement applications Automation Products Group, Inc. Tel: 1/888/525-7300 1/435/753-7300 Fax: 1/435/753-7490 e-mail: sales@apgsensors.com www.apgsensors.com Automation Products Group, Inc. 1025 W. 1700 N.
