AUTOMATION P R O D U C T S G R O U P, I N C. Operator’s Manual FLE Series Magnetic Float Sensors Rev. A3, 10/08 Doc. 9002273 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.
FLE Series Rev. A3, 10/08 Table of Contents Warranty ......................................................................................... 3 Description ...................................................................................... 4 Installation ................................................................................... 5-6 Wiring .............................................................................................. 7 Circuit Protection .......................................
Rev. A3, 10/08 FLE 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.
FLE Series Rev. A3, 10/08 • Description The FLE series instruments contain reed switches in the stem and permanent magnets in the floats. As the float rises or falls with the level of the liquid, the magnet inside the float act on the reed switch inside the stem to provide the SPST switching action. Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications 4 Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.
Rev. A3, 10/08 • FLE Series Installation - Unpacking When unpacking the instrument, exercise care not to subject the instrument to mechanical shock. After unpacking, visually inspect the instrument for damage. - Environment The FLE series sensors should be installed in an area which meets the following conditions: 1. Non-hazardous area. 2. The medium temperature does not exceed -140F to 1850F (-100C to 850C). 3.
FLE Series Rev. A3, 10/08 • Installation - Location Do not locate the FLE series sensor near inlets/outlets. If there is surface wave action, then use a time-delay relay or stilling tube. If a stilling tube is used, drill vent holes in the tube and use a centering spacer on the bottom of the stem to assure the float has free travel inside the tube. Wave action may cause switch to chatter. Use a stilling tube or time-delay relay to prevent switch chatter.
Rev. A3, 10/08 FLE Series • Wiring - Wiring for 1 to 3 switches Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.
FLE Series Rev. A3, 10/08 • Circuit Protection WARNING! DO NOT EXCEED CONTACT RATINGS! When an inductive load is used (e.g. a motor, a coil, or an electromagnetic relay), a back electromotive force of several hundred volts (energy stored in the inductance) arises when the contacts are opened. This results in considerable decrease in contact life. The same result arises even when a resistive load is used with a high voltage or a large current.
Rev. A3, 10/08 FLE Series • Inspection and Maintenance Periodic inspection is necessary to keep your FLE unit in good working order. CAUTION! Do not remove the housing cover until the power supplied to the unit is turned off. Keep the sensor clean. Never leave the housing cover off (for units equipted with a housing). If the cover becomes damaged or is misplaced, order a replacement immediately. If sediment or other foreign matter is trapped between the stem and the float, detection errors may be caused.
FLE Series • Rev. A3, 10/08 FLE Specifications Maximum Number Switching Points 3 Resolution +/- 1/16” (2mm) Field Adjustable Actuation Levels No Maximum Length 48 in. Maximum Process Temperature -140 to 1850 F (-100 to 850 C) Housing Material (optional) Aluminium (IP68, NEMA 4X), Stainless Steel ((NEMA 4X) Nylon (IP 65) Hazardous Rating None Contact Rating: Switch Max. contact capacity Max. switching current Max. Voltage Code A 20 VA 0.5A AC 220 VAC Code B 50 VA 0.
Rev. A3, 10/08 FLE Series Notes Automation Products Group, Inc. APG...Providing tailored solutions for measurement applications Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.
AUTOMATION P R O D U C T S G R O U P, I N C. 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.
