Kotron® RF Point Level Switches D E S C R I P T I O N Kotron RF Capacitance Level Switches offer the industrial user a choice of alarm and control configurations. This amplifier utilizes extremely high radio frequency circuitry to minimize the effect of media build-up on the sensing probe. F E A T U R E S • Models available for single point narrow differential (alarm) and single point wide differential (pump control) • Integral or remote mount models allowing up to 5000 feet (1500 meters) between probe and electronics • User selectable fail-safe switch • Remote configurations available for high process temperature • High/low range selector allows for accurate calibration on both long and short length sensing probes, in both conductive and non-conductive media A P P L I C A T I O N S • Wide calibration range • Viscous liquids • Clean or dirty liquids • Light slurries • Probe lengths from 6 inches (150 mm) minimum to 150 feet (45 meters) maximum • Corrosive liquids • High temperature/pressure liquids • 0–3 second adjustable time delay (rising level), on narrow differential models, prevents relay chatter in turbulent applications • Available with a full range of rigid and flexible sensing probes to +1000° F (+538° C) and 5000 psig (345 bar) • Chemicals • Hydrocarbons and solvents • Acids and salts • Foods and beverages T E C H N O L O G Y The amount of capacitance developed in any vessel is determined by the size (surface area) of the probe, the distance from the probe to its ground, and the dielectric of the medium being measured. Considering that the probe’s mounting position is fixed, and that the dielectric value of the medium is constant, then the amount of capacitance developed in any vessel becomes dependent upon the amount of the probe which is covered by the media. ground also rises and falls. This change in capacitance is sensed by the electronics. As media rises and falls in the tank, the amount of capacitance developed between the sensing probe and the M O D E L The capacitance-controlled oscillator circuit, mounted on the probe, changes the capacitance signal to a variable frequency. This stabilized signal can then be sent to the main electronics located up to 5000 feet (1500 meters) away via standard shielded, twisted pair cable. Using standard twisted pair cable eliminates the costly coaxial or triaxial cable utilized by other manufacturers which limits the installation to 150 feet (45 meters) maximum distance. N U M B E R Models available for quick shipment, usually within one week after factory receipt of a purchase order, through the Expedite Ship Plan (ESP). Note: Delivery is ESP only if Model 80/81 and probe selected are both ESP. MOUNTING 80 81 Integral Remote HOUSING 52 80 NEMA 4X, carbon steel, 3⁄4" NPT single conduit NEMA 4X/7/9, aluminum, 3⁄4" NPT dual conduit TYPE 12 22 Single set point for alarm control with narrow differential Single set point for pump control with wide differential INPUT POWER 8 3 0 120 VAC 1 240 VAC 2 24 VDC 2 P R O B E S C A B L E A full range of rigid and flexible probes for conductive and non-conductive materials is available in various lengths and materials of construction. For further information on probe assemblies, refer to bulletin 50-125. Connecting cable should be shielded, twisted pair, 22-gauge stranded conductors and may be ordered using Magnetrol part number 009-7146-XXX (where XXX = length in feet). 10 feet (3 meters) min., 5000 feet (1500 meters) max. length. For lengths over 999 feet, use X009-7146-999 where X=total length in feet. 2 A G E N C Y A P P R O V A L S AGENCY MODEL FM 8X-80XX-3XX APPROVAL Class I, Div. 1, Groups C & D Class II, Div. 1, Groups E, F & G Note: This approval available with rigid insulated probes only Non-hazardous environments: NEMA 4X Class I, Groups C & D Class II, Groups E, F & G TYPE 4X (This approval excludes use with bare probes) Non-hazardous locations: TYPE 4X All models CSA S P E C I F I C A T I O N S 8X-80XX-3XX All models Supply voltage 120 VAC, 50–60 Hz (+10%, -15%) 240 VAC, 50–60 Hz (+10%, -15%) 24 VDC (±10%) Power consumption 3 watts maximum Zero range 0 pF minimum, 3000 pF maximum Differential range (wide differential) High range: 4 pF minimum 1500 pF maximum Low range: 2 pF minimum 500 pF maximum Fixed minimum differential (narrow differential) 0.5 pF minimum Output relays (DPDT) AC: 10 amp @ 120/240 VAC resistive DC: 10 amp @ 24 VDC resistive Time delay (narrow differential) 0–3 seconds Response time 100 milliseconds Ambient temperature at electronics -40° to +160° F (-40° to +71° C) Operating pressure/ temperature Dependent upon probe selection; refer to probe bulletin 50-125 Temperature coefficient of output -40° to +160° F +0.02 pF per degree F (-40° to +71° C) (+0.036 pF per degree C) D I M E N S I O N A L I N C H E S ( m m ) 1 Rotation clearance S P E C I F I C A T I O N S B A B Rotation clearance 2.63 (66) A 3/4" NPT Conduit connection E C Rotation clearance 3.00 (76) 7.42 (188) Plugged G G Optional mounting flange D F 3.00 (76) Optional mounting flange 2.37 (60) 2 Holes .38 (10) diameter I.L. 1/2" NPT (opt.) 3/4" NPT (std.) Transducer/Amplifier cable connection 3.75 (95) 4.87 (124) 1.25 (32) 2.00 (51) .75 (19) Optional Anchor Assembly P/N 032-8814-001 3.50 (89) .50 (13) .625 (16) Integral Mount with Rigid Probe NEMA 4X housing, 3⁄4" NPT single conduit Optional Weight P/N 004-4355-001 Remote Mount with Flexible Probe NEMA 4X/7/9 housing, 3⁄4" NPT dual conduit Standard Rigid Probe Housing .1875 (5) .2500 (6) 2.95 5.50 (75) (141) Flexible Probe Conduit Connection A B C D E F C D E F G NEMA 4X Carbon steel 3.38 (86) 4.69 (119) 9.04 (230) 2.29 (58) 11.67 (296) 4.04 (103) 10.48 (266) 3.73 (95) 11.67 (296) 4.04 (103) ⁄4" NPT single conduit NEMA 4X/7/9 Aluminum 5.25 (133) 5.81 (148) 11.26 (286) 2.40 (61) 13.81 (351) 4.15 (105) 12.70 (323) 4.67 (119) 13.81 (3.51) 4.15 (105) 3 ⁄4" NPT dual conduit 3 3 Q U A L I T Y The quality assurance system in place at Magnetrol guarantees the highest level of quality throughout the company. Magnetrol is committed to providing full customer satisfaction both in quality products and Magnetrol’s quality assurance system is registered to ISO 9001 affirming its commitment to known international quality standards providing the strongest assurance of product and service quality available. quality service. E S P Expedite Ship Plan Several Kotron RF Point Switches are available for quick shipment, usually within one week after factory receipt of a purchase order, through the Expedite Ship Plan (ESP). To take advantage of ESP, simply match the color coded model number codes (standard dimensions apply). ESP service may not apply to orders of ten units or more. Contact your local representative for lead times on larger volume orders, as well as other products and options. W A R R A N T Y All Magnetrol electronic level and flow controls are warranted free of defects in materials or workmanship for one full year from the date of original factory shipment. If returned within the warranty period; and, upon factory inspection of the control, the cause of the claim is determined to be covered under the warranty; then, Magnetrol will repair or replace the control at no cost to the purchaser (or owner) other than transportation. Magnetrol shall not be liable for misapplication, labor claims, direct or consequential damage or expense arising from the installation or use of equipment. There are no other warranties expressed or implied, except special written warranties covering some Magnetrol products. For additional information, see Instruction Manual 50-605. 5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com 145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306 Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93 Regent Business Ct r., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317 Copyright © 2008 Magnetrol International, Incorporated. All rights reserved. Printed in the USA. Performance specifications are effective with date of issue and are subject to change without notice. BULLETIN: 50-135.13 EFFECTIVE: April 2008 SUPERSEDES: April 2001