ECHOTEL® 335 Ultrasonic non contact transmitter for level, volume or open channel flow DESCRIPTION The Echotel® 335 is an integral mount, high performance ultrasonic non contact transmitter for liquid level, volume and open channel flow measurement. Advanced digital signal processing routines enable the 335 to perform in applications involving in-tank obstructions, light foam and agitation. Non contact liquid level measurement F E AT U R E S • Temperature compensation over full range of transducer • LED indication for the strength of the echo • Plug in custom / 6 digit LCD module - for easy set up - with bar graph display for liquid level % or echo strength • 4-20 mA output and SPDT relay for level control, alarm, diagnostics or remote flow totalization • Fixed target suppression to eliminate interference from intank obstructions • 2 separate totalizers for flow: - daily resettable - continuous totalizer • Max level range: 8 m (26 ft) • 60 kHz transducer A P P L I C AT I O N S • Water and waste water: tank - open channel flow measurement • Paper and pulp • Paint, ink and solvent tanks Model 335 Model 335 Level 4-20 mA Maximum range 8 m (26') General industry Oil and chemical storage Thick and viscous media Food and beverage Batch and day tanks Model 335 Dead band 35 cm (14") minimum Liquid • • • • • Flow Liquid Parshall Flume Volume standard shapes and 32 point strapping table Open channel flow pre-configured flumes and weirs Worldwide level and flow solutions P R I N C I P L E O F O P E R AT I O N The level measurement is accomplished by emitting an ultrasonic pulse from the transducer face and measuring the travelling time between sending this pulse and its reflected echo from the liquid surface. Since the speed of sound is temperature dependant, the transducer also measures ambient temperature to compensate for the changing velocity. Measurement Range Calculations Ultrasonic non-contact measurement transmitters are typically rated for their max. rangeability. Depending process conditions, their maximum range needs to be reduced for getting an optimal measuring result. Use below chart to calculate the realistic rangeability of your application. 8 m (26 ft) x Performance multiplier as per described process condition. OPERATING PARAMETER SURFACE AGITATION: Surface agitation or waves can degrade the performance. Moderate agitation results in only slight degradation of performance. The worst case is when the surface is a good reflector, but in the wrong direction. VAPORS AND STEAM: Vapors can cause problems when the liquid process temperature is well above the temperature of the airspace. The greater the difference, the more expected vapor problems. The problems result from condensation or layering in the sound path, both of which attenuate the sound signal, and degrade performance. If a vent is used, be sure that it is well away from the transducer. BEAM SPREAD INTERFERENCE: It is recommended that no obstructions, such as ladder rungs, fill pipes, support struts, etc, be allowed within the 7° ultrasonic beam. If an obstruction is unavoidable, make it as far as possible from the transducer. Interference from agitator blades is only an intermittent interference that usually has little effect on performance. A special software algorithm can also help suppress false echoes from agitator blades that are within the beam angle. FOAM: Foam can attenuate the ultrasound and render the system inoperative. If possible, moving the transducer to an area in the tank where there is less foam will improve the performance. Thick, heavy-density foams can sometimes produce a reflection from the top of the foam. The multipliers shown at right are general guidelines. For further assistance consult the factory. Beam spread interference Vapors Foam Surface agitation CONDITION PERFORMANCE MULTIPLIER Smooth, glass-like surface . . . . . . . . . . . . . . . . . . . . 1.0 Slight agitation, choppiness . . . . . . . . . . . . . . . . . . . . 0.9 Heavy agitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 Slight vortex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7 No condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 Little condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9 Much condensation/ foggy appearance . . . . . . . . . . . 0.8 No interference within 3.5° half beam angle . . . . . . . 1.0 Agitator at speed less than 60 RPM . . . . . . . . . . . . . 1.0 Agitator at speed greater than 60 RPM . Consult factory Interference outside 2°, far from transducer (in bottom third of range) . . . . . . . . . . . . . 0.8 Interference outside 2°, near to transducer (in top third of range) . . . . . . . . . . . . . . . . 0.5 No foam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 Light froth, less than 6 mm (0.25") thick . . . . . . . . . . 0.8 Light foam, less than 12 mm (0.5") thick . . . . . . . . . . 0.5 Light foam, more than 25 mm (1") thick . . . . . . . . . . 0.1 EXAMPLE: A heavily agitated tank, without condensation, no interference and a light froth on the surface. Max recommended range: 8 m x 0.8 x 1.0 x 1.0 x 0.8 = 5.12 m 2 S E L E C T I O N D ATA A complete measuring system consists of: 1. One order code for Echotel® 335 transmitter. 1. Order code for Echotel® 335 transmitter BASIC MODEL NUMBER 3 3 5 Echotel® 335, ultrasonic non contact transmitter - 8 m (26 ft) range POWER A D 1 A A 1 24 V DC 85 to 255 V AC ACCESSORIES A Plug in LCD / programming module TRANSDUCER G G G G 3 3 5 1 A A G 5 B 5 B P P K K Polypropylene (PP) sensor Polypropylene (PP) sensor Kynar® (PVDF) sensor Kynar® (PVDF) sensor - 2" 2" 2" 2" NPT process connection BSP (G 2") process connection NPT process connection BSP (G 2") process connection complete order code for Echotel® 335 transmitter X = product with a specific customer requirement P H Y S I C A L / E L E C T R I C A L S P E C I F I C AT I O N S Description Power Output Specification Continuous Relays Measuring range Damping Diagnostic alarm User interface Keypad Display LED status indication Menu language Housing material Net and gross weight Overall dimensions 24 V DC 85 to 255 V AC 4-20 mA, max 600 Ω loop resistance one SPDT relay 3 A @ 250 V AC one SPDT relay 1 A @ 30 V DC 8 m (26 ft) with 350 mm (14") dead zone 0, 3, 6, 10, 30 or 60 s – field selectable 3,6 mA, 22 mA, Hold last output or via relay 4 button menu-driven data entry Removable 6 digit LCD module with dual function bar graph Echo strength English IP 67, Aluminium (2 x M20 x 1,5 and 2 x 1/2" NPT - all plugged) 2 x M20 x 1,5 cable gland separately included 1,6 kg (3.5 lbs) Height: 228 mm (8.98") x dia: 128 mm (5.04") P E R F O R M A N C E / T R A N S D U C E R S P E C I F I C AT I O N S Description Resolution Accuracy <2m >2m&<5m >5m&<8m Transducer materials Beam angle Ambient temperature Process temperature Process pressure Specification ± 1 mm ± 2 mm ± 5 mm ± 0.2 % of the measured distance + 0.05 % of the range (under optimal conditions) IP 68, Polypropylene (PP) or Kynar® (PVDF) 7° – radius @ 5 m = 30,6 cm / @ 7 m = 42,8 cm (radius @ 15 ft = 11.0" / @ 20 ft = 14.7") - 30 °C to + 60 °C (- 22 °F to 140 °F) - 30 °C to + 90 °C (- 22 °F to 195 °F) max 3 bar (43.5 psi) 3 B E A M W I D T H v s D I S TA N C E DISTANCE D (m) WIDTH W (cm) DISTANCE D (ft) WIDTH W (inch) 4 50 12 17.6 100 24 35.2 2 25 6 6 75 8 8.8 18 26.4 D W DIMENSIONS in mm (inch) 89 (3.50) The inside of the nozzle should be smooth. The inner rim at the end of the nozzle should be rounded. 100 (3.94) M20 x 1,5 2 entries L (mm) D min (mm) 200 75 150 148 (5.83) 1/2" NPT 2 entries 250 100 350 125 300 2" NPT or BSP 80 (3.15) L 75 125 ØD 54 (2.13) QUALITY ASSURANCE - ISO 9001:2008 THE QUALITY ASSURANCE SYSTEM IN PLACE AT MAGNETROL® GUARANTEES THE HIGHEST LEVEL OF QUALITY DURING THE DESIGN, THE CONSTRUCTION AND THE SERVICE OF CONTROLS. OUR QUALITY ASSURANCE SYSTEM IS APPROVED AND CERTIFIED TO ISO 9001:2008 AND OUR TOTAL COMPANY IS COMMITTED TO PROVIDING FULL CUSTOMER SATISFACTION BOTH IN QUALITY PRODUCTS AND QUALITY SERVICE. :2008 PRODUCT WARRANTY ALL MAGNETROL ELECTRONIC AND ULTRASONIC LEVEL CONTROLS ARE WARRANTED FREE OF DEFECTS IN MATERIALS AND 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® INTERNATIONAL 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 THE EQUIPMENT. THERE ARE NO OTHER WARRANTIES EXPRESSED OR IMPLIED, EXCEPT, SPECIAL WRITTEN WARRANTIES COVERING SOME MAGNETROL® PRODUCTS. ® BULLETIN N°: EFFECTIVE: SUPERSEDES: UNDER RESERVE OF MODIFICATIONS Heikensstraat 6, 9240 Zele, België -Belgique Tel. +32 (0)52.45.11.11 • Fax. +32 (0)52.45.09.93 • E-Mail: [email protected] DEUTSCHLAND Alte Ziegelei 2-4, D-51491 Overath Tel. +49 (0)2204 / 9536-0 • Fax. +49 (0)2204 / 9536-53 • E-Mail: [email protected] INDIA C-20 Community Centre, Janakpuri, New Delhi - 110 058 Tel. +91 (11) 41661840 • Fax +91 (11) 41661843 • E-Mail: [email protected] ITALIA Via Arese 12, I-20159 Milano Tel. +39 02 607.22.98 • Fax. +39 02 668.66.52 • E-Mail: [email protected] RUSSIA 198095 Saint-Petersburg, Marshala Govorova street, house 35A, office 343 Tel. +7-812.702.70.87 • E-Mail: [email protected] U.A.E. UNITED KINGDOM DAFZA Office 5EA 722 • PO Box 293671 • Dubai Tel. +971-4-6091735 • Fax +971-4-6091736 • E-Mail: [email protected] Unit 1 Regent Business Centre, Jubilee Road Burgess Hill West Sussex RH 15 9TL Tel. +44 (0)1444 871313 • Fax +44 (0)1444 871317 • E-Mail: [email protected] www.magnetrol.com BENELUX FRANCE OUR NEAREST REPRESENTATIVE BE 51-138.2 OCTOBER 2013 April 2010