Guided Wave Radar Liquid-Liquid Interface Transmitter

Transcription

1 Guided Wave Radar Liquid-Liquid Interface Transmitter TM 707 DESCRIPTION The Eclipse 707 Transmitter is a loop-powered, 24 V DC liquid-level transmitter based on the revolutionary Guided Wave Radar (GWR) technology. Encompassing a number of significant engineering accomplishments, this leading edge level transmitter is designed to provide both liquid level and liquid-liquid level measurement performance. The innovative enclosure is a first in the industry, orienting dual compartments (wiring and electronics) in the same plane, and angled to maximize ease of wiring, configuration, set-up and data display. Measures level and interface 2 wire FEATURES * Measures accurately liquid-liquid interface (min. difference dielectric between upper and lower liquid 10; eg. water and oil). * 4-20 ma output (as per Namur NE 43) for interface level. * Level and interface read out over /AMS Hart digital communication. * Two-wire, intrinsically safe loop powered level transmitter. * Measurement not affected by media variables eg. dielectrics, pressure, density, ph, viscosity,... * Easy bench configuration - no need for level simulation. * Two-line, 8-character LCD and 3-button keypad. * Integral or remote electronics. * 360 rotatable housing can be dismantled without depressurizing the vessel via Quick connect/disconnect probe coupling. APPLICATIONS MEDIA: Liquids or slurries; hydrocarbons to water-based liquids or slurries; hydrocarbons up to water based: upper liquid with dielectric 1,4-5,0 lower liquid with dielectric VESSELS: Most process or storage vessels up to rated probe temperature and pressure. CONDITIONS: Can measure all types of interfaces between media with a min dielectric difference of 10 providing that lower liquid is conductive and the upper medium is non conductive and the dielectric of the upper liquid is known. Emulsion layers need to be avoided a max layer of 12 mm (0.47") is typically acceptable. AGENCY APPROVALS Agency ATEX FM/CSA ➀ Approvals ATEX II 3 G EEx na II T6, non sparking ATEX II 1 G EEx ia IIC T4, intrinsically safe ATEX II 1/2 G EEx d[ia] IIC T6, explosion proof Non Incendive / Intrinsically safe / Explosion proof ➀ Consult factory for proper partnumbers Eclipse 707 with Coaxial 7MT GWR probe Worldwide level and flow solutions

2 TECHNOLOGY Eclipse Guided Wave Radar is based upon the technology of TDR (Time Domain Reflectometry). TDR utilizes pulses of electromagnetic energy transmitted down a wave guide (probe). When a pulse reaches a liquid surface that has a higher dielectric constant than the air (ε r of 1) in which it is traveling, the pulse is reflected. The travelling time of the pulse is measured via ultra speed timing circuitry that provides an accurate measure of the liquid level. Even after the pulse is reflected from the upper surface, some of the energy continues down the GWR probe through the upper liquid. The pulse is again reflected when it reaches the higher dielectric lower liquid, as shown in the illustration. Since the speed of the signal through the upper liquid is dependent on the dielectrics of the medium in which it is traveling, the dielectrics of the upper liquid must be known to accurately determine the interface level. In order to properly process the reflected signals, the Model 707 is specified for those applications where the thickness of the upper layer is > 50 mm (2"). The maximum upper layer is limited to the length of the 7MT GWR probe, which is available in lengths up to 3,6 m (12'). INTERFACE DETECTION The Eclipse 707, with 7MT coaxial GWR probe, is a transmitter capable of measuring both an upper liquid level and an interface liquid level. It is required that the upper liquid has a dielectric constant between 1.4 and 5, and the lower liquid has a dielectric constant greater than 15. A typical application would be oil over water, with the upper layer of oil being non-conductive (ε r ± 2,0), and the lower layer of water being very conductive (ε r ± 80). Upper level signal Reference signal > 50 mm (2") Air εr = 1 Low dielectric medium (eg. oil, εr = 2) EMULSION LAYERS As emulsion layers can decrease the strength of the reflected signal, the Eclipse Model 707 should only be utilized in those applications that have clean, distinct layers. Contact the factory for application assistance. Interface level signal Time < 50 mm (2") high dielectric medium (eg. water, εr = 80) CAGES Eclipse can be built into cages as small as DN 50 / 2". When a new cage is needed, it can be ordered together with the Eclipse. Magnetrol has a long tradition in offering cost effective cages. Magnetrol cages comply with PED regulations and are available with a wide variety of options. ➀ Measuring span cm (12-240") ➀ Materials of construction Carbon steel or 316 (1.4401) stainless steel Process connection sizes 3/4", 1", 1 1 /2", 2" Process connection ratings 150#-2500# ANSI Configurations Side-Side and Side-Bottom Process pressures Up to 345 bar (5000 psig) ➀ Process temperatures Up to +400 C (+750 F) ➀ Limitations are defined per selected GWR probe (see probe specifications in the various Eclipse 705/707/708 bulletins. AURORA Aurora is the innovative combination of the Eclipse Guided Wave Radar and a Magnetic Level Indicator (MLI). The MLI indicator rail offers the Eclipse a highly visible level indication that may obsolete the need for local indicators. The integration of these two independent technologies provides an excellent redundancy in one integrated design. With Aurora it is even possible to plan maintenance ahead. Maintenance becomes needed when build up in an installation has surpassed the allowable limit. Build up on the float inside the MLI cage will force it to sink deeper in the liquid while the measurement of the Eclipse will not see any build up until its both lead elements are completely clugged. In this way, the float will indicate a lower level versus the real level measured by the Eclipse. The degree of deviation between both read outs is a worthwhile tool to determine the real need for maintenance. For more details consult bulletin

3 REPLACEMENT OF DISPLACER TRANSMITTER Eclipse has proven to be the perfect replacement for existing torque tube transmitters. In hundreds of applications around the globe, customers have found Eclipse Guided Wave Radar superior to torque tube transmitters: Cost: A new Eclipse costs only slightly more than rebuilding an aging torque tube. Installation: No field calibration is necessary; it can be configured in minutes with no level movement. Pre-configuration from factory is free of charge. Non-ANSI proprietary flange Non-ANSI proprietary flange Performance: Eclipse is not affected by changes in specific gravity or dielectric. Ease of replacement: Proprietary flanges are offered so existing chamber/ cages can be used. Selecting the GWR probe length versus displacer length Below table helps to define the GWR probe length based upon the length of the most common displacer transmitters. Consult factory for those brands/types not enlisted. Manufacturer Type Process connection Displacer length inches (mm) Probe length mm (inches) Magnetrol ➀ Modulevel ANSI/DIN flange 17" (432) Displacer (8.5) EZ & PN ANSI/DIN flange standard 14" (356) 820 (32.22) Masoneilan Series 1200 Proprietary flange standard 14" (356) 840 (32.23) ANSI/DIN flange 16" (406) Displacer (8) Fisher series 2300 & B, 259B, 249C cages Proprietary flange standard 14" (356) 14" (356) 610 (24) Displacer (10) other cages ANSI flange 14" (356) consult factory Tokyo Keiso ➀ FST-3000 ANSI/DIN flange H = 11.8" (300) 820 (32.40) ANSI/DIN flange H = 19.7" (500) displacer (9.8) ➀ Standard 14" displacer transmitters from Magnetrol and Tokyo Keiso require the top hat flange connection (see part number selection of GWR probe). The additional 143 mm (5.56") length for this connection is already included in the recommended GWR probe length as per above table. 100 % Displacer GWR probe 0 % min 25 mm (1") Recommended to confirm this distance 3

4 SELECTION DATA A complete measuring system consists of: 1. Eclipse transmitter head/electronics 2. Eclipse 707 GWR probe 3. OPTION: HART communicator Magnetrol P/N (EURO plug)/ (UK plug) 1. Order code for ECLIPSE 705 transmitter head/electronics BASIC MODEL NUMBER Eclipse 707 guided wave radar transmitter for level/interface measurement POWER 5 24 V DC, two wire SIGNAL OUTPUT ma with HART communication ma only (requires local display and keypad - Accessories code A) MENU LANGUAGE (Hart communication is only available in English language) 1 English default selection for blind transmitters 2 Spanish 3 French 4 German ACCESSORIES A Digital display and keypad 0 Blind transmitter (no display/keypad) only for units with HART communication MOUNTING/CLASSIFICATION (Consult factory for FM/CSA approvals) 1 Integral, General Purpose (& I.S. FM/CSA) 2 Remote, General Purpose (& I.S. FM/CSA) A Integral, ATEX II 1 G EEx ia IIC T4 B Remote, ATEX II 1 G EEx ia IIC T4 C Integral, ATEX II 1/2 G EEx d[ia] IIC T6 D Remote, ATEX II 1/2 G EEx d[ia] IIC T6 E Integral, ATEX II 3 G EEx na II T6 F Remote, ATEX II 3 G EEx na II T6 MATERIAL OF CONSTRUCTION 1 Cast aluminium dual compartiment housing 2 Stainless steel dual compartiment housing CABLE ENTRY 1 M20 x 1.5 (2 entries - one plugged) 0 3/4" NPT (2 entries - one plugged) complete order code for ECLIPSE 707 transmitter head/electronics 4

5 2. Order code for ECLIPSE 707 Coaxial GWR probe BASIC MODEL NUMBER 7 M T Overfill safe Coaxial GWR probe for level/interface measurement MATERIAL OF CONSTRUCTION - wetted parts (including process connection flange when applicable) A 316/316L (1.4401/1.4404) stainless steel PROCESS CONNECTION - SIZE/TYPE (consult factory for other process connections) Threaded 1 1 3/4" NPT thread 2 2 1" BSP (G1) thread ANSI flanges 2 3 1" 150 lbs. ANSI RF 2 4 1" 300 lbs. ANSI RF 2 5 1" 600 lbs. ANSI RF /2" 150 lbs. ANSI RF /2" 300 lbs. ANSI RF /2" 600 lbs. ANSI RF 4 3 2" 150 lbs. ANSI RF 4 4 2" 300 lbs. ANSI RF DIN flanges B A DN 25, PN 16 DIN 2527 form B B B DN 25, PN 25/40 DIN 2527 form B B C DN 25, PN 64/100 DIN 2527 form E C A DN 40, PN 16 DIN 2527 form B C B DN 40, PN 25/40 DIN 2527 form B C C DN 40, PN 64/100 DIN 2527 form E D A DN 50, PN 16 DIN 2527 form B D B DN 50, PN 25/40 DIN 2527 form B D D DN 50, PN 64 DIN 2527 form E D E DN 50, PN 100 DIN 2527 form E Top Hat (Modulevel type) flanges in carbon steel 4 R 2" 150 lbs ANSI Raised Face flange 4 S 2" 300 lbs ANSI Raised Face flange 5 R 3" 150 lbs ANSI Raised Face flange 5 S 3" 300 lbs ANSI Raised Face flange 4 5 2" 600 lbs. ANSI RF 5 3 3" 150 lbs. ANSI RF 5 4 3" 300 lbs. ANSI RF 5 5 3" 600 lbs. ANSI RF 6 3 4" 150 lbs. ANSI RF 6 4 4" 300 lbs. ANSI RF 6 5 4" 600 lbs. ANSI RF E A DN 80, PN 16 DIN 2527 form B E B DN 80, PN 25/40 DIN 2527 form B E D DN 80, PN 64 DIN 2527 form E E E DN 80, PN 100 DIN 2527 form E F A DN 100, PN 16 DIN 2527 form B F B DN 100, PN 25/40 DIN 2527 form B F D DN 100, PN 64 DIN 2527 form E F E DN 100, PN 100 DIN 2527 form E Top Hat (Modulevel type) flanges in stainless steel 4 W 2" 150 lbs ANSI Raised Face flange 4 Y 2" 300 lbs ANSI Raised Face flange 5 W 3" 150 lbs ANSI Raised Face flange 5 Y 3" 300 lbs ANSI Raised Face flange Torque tube mating flanges with top hat ➀ Torque tube mating flanges ➀ T V 600 lbs Fisher (249B/259B) with top hat in carbon steel T T 600 lbs Fisher (249B/259B) in carbon steel T W 600 lbs Fisher (249C) with top hat in stainless steel T U 600 lbs Fisher (249C) in stainless steel U V 600 lbs Masoneilan flange with top hat in carbon steel U T 600 lbs Masoneilan flange in carbon steel U W 600 lbs Masoneilan flange with top hat in stainless steel U U 600 lbs Masoneilan flange in stainless steel ➀ Always check dimensions if no ANSI/DIN flanges are used. PROCESS SEAL - MATERIAL ➁ 0 Viton GFLT seal - for universal use / steam applications Min. -40 C (-40 F) 1 EPDM (Ethylene Propylene) - for e.g. caustic soda applications Min. -50 C (-60 F) 2 Kalrez 4079 seal - for aggressive media Min. -40 C (-40 F) ➁ Viton GFLT and Kalrez are rated to a max. process temperature of +200 C (+400 F) / EPDM is rated to +125 C (+250 F). Consult factory for alternative seal materials INSERTION LENGTH specify per 1 cm (0.39") increments min 0.6 m (24") insertion length max 3.6 m (142") insertion length Note: Add 143 mm (5.62") to the probe insertion length to obtain the complete GWR probe length for units with top hat process connection. 7 M T A complete code for ECLIPSE 7MT Coaxial GWR probe 5

6 0 % 100 % TRANSMITTER SPECIFICATIONS FUNCTIONAL/PHYSICAL Description Specification Power (at terminals) General Purpose / ATEX Intrinsically Safe: 11 to 28,6 V DC ATEX Explosion Proof (with Intrinsically Safe electronics) 13,5 to 36 V DC Signal Output Interface 4-20 ma or 4-20 ma with HART /AMS 3,8 to 20,5 ma useable (meets NAMUR NE 43) Level and interface HART /AMS digital communication Span 150 to 3600 mm (6" to 120") Resolution Analog: 0,01 ma Display: 0,1 cm (inch). Difference between display/analog: max 0,05 ma Loop Resistance Intrinsically Safe/General Purpose: ,5 ma - 24 V DC (see tables at page 12) Explosion Proof (with Intrinsically Safe probe): ,5 ma - 24 V DC Damping Adjustable 0-45 s Diagnostic Alarm Adjustable 3,6 ma, 22 ma, HOLD (3,6 ma is not valid if unit includes both digital display and HART ) User Interface 3-button keypad and/or HART communicator Display 2-line x 8-character LCD Menu Language English/Spanish/French/German Housing Material IP 66/Aluminium A356T6 (< 0.20 % copper) or stainless steel Approvals ATEX II 1G EEx ia II C T4, ATEX II 1/2G EEx d[ia] II C T6, ➀ ATEX II 3G EEx na II T6, FM and CSA Electrical Data Ui = 28,6 V, li = 140 ma, Pi = 1 W Equivalent Data Ci = 2,1 nf, Li = 385 µh Shock/Vibration Class ANSI/ISA SA1 (Shock), ANSI/ISA VC2 (Vibration) Net and Gross Weight 2,70 kg net; 3,20 kg gross Overall Dimensions H 214 mm (8.43") x W 111 mm (4.38") x D 188 mm (7.40") ➀ ATEX, explosion proof units use EEx d bushing material BARTEC (part n ) PERFORMANCE ➀ Description Reference Conditions with a 1,8 m (72") coaxial type GWR probe Specification Linearity < 13 mm (0.5") Reflection from liquid, with dielectric in center of selected range, at +20 C (70 F) Measured error Upper liquid: ± 25 mm (1") Lower liquid ± 25 mm (1") Resolution ± 2,5 mm (0.1") Repeatability < 13 mm (0.5") Hysteresis < 13 mm (0.5") Response Time Warm-up Time Ambient Temp. Operating Temp. Effect < 1 second < 5 seconds -40 C to +80 C (-40 F to +175 F) blind transmitter -20 C to +70 C (-5 F to +160 F) with digital display -40 C to +70 C (-40 F to +160 F) for EEx ia and EEx d[ia] with blind transmitter -20 C to +70 C (-5 F to +160 F) for EEx ia and EEx d[ia] with digital display Approx. +0,02 % of probe length/ C for probes 2,5 m (8') ➀ Humidity 0-99 %, non-condensing Electromagnetic Compatibility Meets CE requirements (EN , EN ) and NAMUR NE 21 Accuracy may degrade slightly < 2,5 m (8') (max 1 mm/ C) ELECTRICAL WIRING Power supply GP / intrinsically safe: min 11 V DC Explosion proof: min 13,5 V DC Standard shielded twisted cable (recommended but not needed when wired as per NAMUR NE 21 for field strenghts up to 10 V/m). Galvanic Barrier max 28,6 V 140 ma for intrinsically safe units (not needed for GP and explosion proof models). Ex Non Ex 6

7 PROBE SPECIFICATIONS Description 7MT: coaxial GWR probe for interface Materials Probe 316/316L (1.4401/1.4404) Process seal TFE with Viton GFLT, EPDM or Kalrez 4079 (Consult factory for alternatives) Probe diameter Inside rod: 8 mm (0.3125") Outer tube: 22 mm (0.875") Mounting In-tank mounting / external cage mounting overfill safe Process Connection Threaded: 3/4" NPT or 1" BSP (G1) Flanged: Various ANSI, DIN or torque tube mating flanges Probe length From 600 mm to 3600 mm (24" to 144") Transition Zone ➀ Top 0 mm (0") Bottom εr: 1,4 = 150 mm (6")/εr: 80 = 25 mm (1") Process Temp max bar ( psi) min bar ( psi) Process Pressure max C ( F) see table at page 12 Max. Viscosity Dielectric Range min vacuum service (not +200 C (+ 400 F) 500 cp Upper layer thickness min 50 mm (2") Emulsion layer thickness max 50 mm (2") 1,4 to 5,0 upper liquid 15 to 100 lower liquid DIMENSIONS in mm (inches) (4.00) 83 (3.28) 105 (4.12) View Proprietary flanges Ø 229 (9.0) Ø 184 (7.25) 60 (2.37) 51 (2.00) 89 (3.50) 2 cable entries 76 (3.00) 2 holes 95 (3.75) 840 (33.00) 108 (4.25) 126 (4.94) 214 (8.43) Ø 22 (.875) 32 (1.125) 133 (5.23) 6 (.22) Fisher 249B/259B (600 lbs), carbon steel 111 (4.38) Eclipse Housing, ( View) Ø 143 (5.625) Ø 121 (4.750) Ø 11 (.438) 29 (1.125) 83 (3.28) 105 (4.12) 83 (3.28) 105 (4.12) 83 (3.28) 105 (4.12) 86 (3.375) 5 (.188) Fisher 249C (600 lbs), 316 stainless steel (4.00) (4.00) (4.00) Ø 191 (7.50) Ø 149 (5.875) 256 (10.08) 256 (10.08) 256 (10.08) 2 cable entries 2 cable entries 2 cable entries Ø 22 (.875) 29 (1.125) 144 (5.68) 137 (5.39) Mounting Flange 168 (6.61) 317 (12.48) (4.00) 6 (.25) Masoneilan (600 lbs), 316 carbon steel 143 (5.62) Probe Insertion 3/4" NPT Process Conn. Probe Insertion 1" BSP (G1) Process Conn. 7MT with threaded connection Probe Insertion 7MT with flanged connection Add 143 (5.62) for complete probe insertion length 7MT with top hat flanged connection Ø 22 O.D. (0.88) Ø 8 (0.31") Coaxial GWR Probe, End View 7

8 TEMPERATURE-PRESSURE RATING FOR ECLIPSE PROBE SEALS Process Pressure (bar) Process Temperature ( C) 7MT: coaxial GWR probe for interface LOOP RESISTANCE Ω ma 23 ma Ω ma 23 ma Vdc Vdc GENERAL PURPOSE (GP) INTRINSICALLY SAFE (IS) Vdc 13, Vdc EXPLOSION PROOF (XP) QUALITY ASSURANCE - ISO 9001:2000 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 9001:2000 AND OUR TOTAL COMPANY IS COMMITTED TO PROVIDING FULL CUSTOMER SATISFACTION BOTH IN QUALITY PRODUCTS AND QUALITY SERVICE. :2000 PRODUCT WARRANTY ALL MAGNETROL ELECTRONIC AND ULTRASONIC LEVEL CONTROLS ARE WARRANTED FREE OF DEFECTS IN MATERIALS AND WORK- MANSHIP FOR ONE FULL YEAR FROM THE DATE OF ORIGINAL FACTORY SHIPMENT. IF RETURNED WITHIN THE WARRANTY PERIOD; AND, UPON FACTORY INSPEC- TION 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. UNDER RESERVE OF MODIFICATIONS BENELUX Heikensstraat 6, 9240 Zele, België Tel. +32 (0) Fax. +32 (0) info@magnetrol.be DEUTSCHLAND Alte Ziegelei 2-4, D Overath Tel / Fax / vertrieb@magnetrol.de FRANCE 40-42, rue Gabriel Péri, Le Plessis Bouchard Tél Fax magnetrolfrance@magnetrol.fr ITALIA Via Arese 12, I Milano Tel. (02) (R.A.) Fax. (02) mit.gen@magnetrol.it UNITED Unit 1 Regent Business Centre, Jubilee Road Burgess Hill West Sussex RH 15 9TL KINGDOM Tel. (01444) Fax (01444) sales@magnetrol.co.uk INDIA E-22, Anand Niketan, New Delhi Tel. 91 (11) Fax 91 (11) magnetrolindia@vsnl.com OUR NEAREST REPRESENTATIVE BULLETIN N : BE EFFECTIVE: DECEMBER 2003 SUPERSEDES: November 2002