ECHOTEL® 961 Ultrasonic level switches FOR HYGIENIC USE DESCRIPTION Echotel® 961 ultrasonic level switches require no calibration to detect the presence of any liquid in less than 1s. Foam is ignored by technology, so that the unit only detects the presence or absence of liquid. The pulsed wave technology permits the unit to resist turbulence, aeration, suspended solids and build up. Echotel® 961 has both 3A and EHEDG approval for use in hygienic applications. Echotel® 961 offers either current shift or relay output. For LIQUID LEVEL switching applications F E AT U R E S • No calibration • 2-wire loop powered with mA output, AC/DC line powered with integrated relays. • Continuous selftest with selectable error output • LED identification for: - process alarm - error of transducer, electronics or electrical noise interference - wet/dry status of transducer • Push buttons for manual testing of alarm and error signals • Adjustable time delay up to 45 s • Suitable sensor design for CIP/SIP cleaning • Model 961 suited for SIL 1 and SIL 2 loops (full FMEDA report available) FE T Y I NT SA EGRITY FEBRUARY 2003 V EL LE A P P L I C AT I O N S MEDIA: Any liquid. VESSELS: Any mounting position. CONDITIONS: Unaffected by - shifting dielectric, density, or PH - presence of foam, turbulence, visible vapours - fast drain/fill rates - vacuum conditions. A G E N C Y A P P R O VA L S Agency TNO Approval Hygienic Machinery Directive 98/37/EC annex 1, section 2.1 EN 1672 part 2, Hygienic requirements EHEDG doc. 2 (second edit. March 2000) and doc. 8 (July 1993) Other approvals are available, consult factory for more details Refer to bulletin BE 51-137 for ATEX/FM/CSA approved units. Worldwide level and flow solutions TECHNOLOGY The Echotel® 961 operates on a two crystal pulsed or “transmit-receive” principle which applies a high frequency electronic burst to the transmit crystal. The signal is then converted into ultrasonic energy and transmitted across the sensing gap towards the receiver crystal. When there is air in the gap, the high frequency ultrasonic energy will be attenuated, thereby not allowing the energy to be received. When there is liquid in the gap, the ultrasonic energy will propagate across the gap and the output will indicate a reception of the signal. Air/Gas Dry gap Liquid Wet gap MOUNTING High alarm Low alarm Filling line High alarm Low alarm Pump protection Pump 2 ELECTRONICS Line powered 961 Loop powered 961 FUNCTIONS Adjustable time delay: The Echotel® 961 provides a fast response time of typically 0,5 s. In applications with turbulent or boiling surfaces, this may lead to scattering of the output. For these applications, the user can adjust via a potentiometer a time delay from 0,5 to 45 s and avoid false switching. Pushbuttons for manual check: The alarm output and the error signal of the Echotel® 961 can be manually checked via pushbuttons. For loop powered units, the loop test pushbutton will sequentially check the shift of loop current. For relay operated units, the level test pushbutton will make the relay change from energized to de-energized status or vice versa. Pressing the fault/malfunction pushbutton stops all transmit pulses, which simulates an electronics failure, and tests the selected output signal. LED identification: The «Wet» LED reports liquid in the gap. An additional «Level» LED on the 961 with relay output reports alarm. With the current shift version, the corresponding 8 or 16 mA LED will report alarm or safe condition. «Fault» LED reports a malfunction of the unit. The blinking sequence of the LED identifies the failure (electronics, transducer or electrical noise interference). «Malfunction» LED (only for units with relay) confirms that the malfunction relay is energized in normal operation Selectable error signal: The error signal of loop powered units can be set for either 3,6 or 22 mA. The separate malfunction relay of the 961 can be set for independent or joint operation with the alarm relay. ELECTRICAL WIRING Loop powered Line powered V AC/DC power 2-wire, loop powered NC C NO Process alarm DPDT Malfunction SPDT 3 S E L E C T I O N D ATA A complete measuring system consists of: 1. ECHOTEL® electronics 2. ECHOTEL® transducer 1. Order code for Echotel® electronics BASIC MODEL NUMBER Electronics with mA or relay output 9 6 1 - 5 0 A 9 6 1 - 2 D A 9 6 1 - 7 D A 24 V DC 2-wire loop powered electronics with current shift output 18 – 32 V DC line powered electronics with 5 A gold flash relay output 102 – 265 V AC line powered electronics with 5 A gold flash relay output ACCESSORIES 0 1 Blind housing cover Housing cover with glass window MOUNTING / HOUSING MATERIAL / APPROVAL Integral mount electronics 304 SST – IP 67 0 7 Weatherproof Other housing materials / approvals are available; refer to bulletin BE 51-137 Consult factory for FM, CSA or other approvals CABLE ENTRY 5 9 6 4 A 0 7 5 M20 x 1,5 (2 entries – 1 plugged) complete order code for Echotel® electronics X = product with a specific customer requirement 2. Order code for Echotel® transducer BASIC MODEL NUMBER 9 M 1 Transducer with single setpoint TRANSDUCER MATERIAL (0,5 µm Ra (20 Ra) surface finish) S 316/316L (1.4401/1.4404) stainless steel PROCESS CONNECTION – SIZE/TYPE 3 4 B C D V T T S S S V A A A A A A 1 1/2" Tri-clamp 2" Tri-clamp® DN 25 DIN 11851 DN 40 DIN 11851 DN 50 DIN 11851 DN 65 Varivent® type N ® Consult factory for other process connections (NEUMO BioControl®, G1A, …) ACTUATION LENGTH – Specify per cm (0.39") increment Total insertion length = actuation length + 6 mm (0.25") 0 0 5 3 3 0 9 M 1 S A Minimum 5 cm (2") Maximum 330 cm (130") complete order code for Echotel® transducer X = product with a specific customer requirement 5 DIMENSIONS IN mm (inches) 52 (2.05) 58 (2.28) 60 (2.36) 125 (4.92) Cable entry 43° 109 (4.28) 43° View 35 (1.38) 29 (1.14) Actuation Length Ø 22,9 (0.90) 6 (0.25) 6 (0.25) Tri-Clamp® 6 Actuation Length Ø 22,9 (0.90) 46 (1.81) Actuation Length Ø 22,9 (0.90) 6 (0.25) DIN 11851 Varivent® E L E C T R O N I C S S P E C I F I C AT I O N S Description mA - version Relay - version Power Consumption Input Voltage Output Time delay Indication Selftest Housing material mA - version Relay - version Automatic Manual Approvals SIL (Safety Integrity Level) Shock/Vibration Class Net weight PERFORMANCE Description Response time Repeatability Ambient Temperature Humidity Electromagnetic compatibility Specification 2 wire loop powered, 12 - 35 V DC 102 - 265 V AC 50/60 Hz or 18 - 32 V DC < 3 Watt (relay version) – < 1 Watt (mA version / AS-i version) 8 mA (safe), 16 mA (alarm) ± 1 mA ≤ 3,6 or ≥ 22 mA error signal one 5 A DPDT level alarm relay, one 5 A SPDT malfunction relay 0,5 to 45 s adjustable (in addition to transducer response time) LED’s for process alarm status, malfunction (error of transducer, electronics or electrical noise interference) and wet/dry status of transducer (961 with relay) Continuously verifies electronics, transducer and noise interference Via pushbutton for checking alarm output(s) and error output/function. 304 stainless steel, IP 67 EHEDG (per TNO) and 3A certification Functional safety to SIL 2 as 1oo1 in accordance to IEC 61508 – SFF of 91,4 % (mA - version) and 92 % (relay - version). Full FMEDA report and declaration sheets available at request ANSI/ISA-S71.03 Class SA1 (shock), ANSI/ISA-S71.03 Class VC2 (vibration) 1 kg (2.2 lbs) – electronics only Specification 0,5 s typical ± 2 mm (0.078") -40 °C to +70 °C (-40 °F to +160 °F) 0-99 %, non-condensing Meets CE requirements (EN 61326: 1997 + A1 + A2) and NAMUR NE 21 T R A N S D U C E R S P E C I F I C AT I O N S Description Material Surface finish Process connection Transducer diameter Transducer length Process temperature Max. process pressure Specification Max Min Max Min 316/316L (1.4401/1.4404) 0,5 µm Ra (20 Ra) Tri-Clamp®, DIN 11851, Varivent® 22,9 mm (0.90") 330 cm (130") 5 cm (2") +165 °C (+325 °F) -40 °C (-40 °F) 103 bar @ +40 °C (1500 psi @ +100 °F) 103 bar @ +165 °C (1500 psi @ +325 °F) Note: max. process pressure is downrated to the design pressure of the selected process connection 7 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 427 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 51-132.6 FEBRUARY 2014 May 2012