HORIZON™ 704 Guided Wave Radar Level Transmitter DESCRIPTION The Horizon® 704 is a loop-powered, 24 V DC liquid-level transmitter based on the revolutionary Guided Wave Radar (GWR) technology. The electronics of the Horizon® 704 is integral mount on the GWR probe and allows local configuration via a 3 pushbutton keypad / LCD screen. The Horizon® 704 electronics are compatible with different types of GWR probes each encompassing different application challenges (coaxial or twin rod types). The aluminium or Lexan® housing can be removed for service under process conditions. Measures «REAL LEVEL» Horizon 704 with coaxial GWR probe F E AT U R E S * “REAL LEVEL”, measurement not affected by changing media variables eg. dielectrics, pressure, density, pH, viscosity, ... * Easy bench configuration - no need for level simulation. * 2-line x 8-character LCD / 3-pushbutton keypad or blind transmitter. * Two-wire, intrinsically safe loop powered level transmitter. * Housing can be easily removed without depressurizing the vessel. ® ® * HART /AMS digital communication. * Max process temperature: 200 °C (400 °F). * Max process pressure: 70 bar (1000 psi). * 4-20 mA output (meets NAMUR NE 43). * Integral mount electronics. MEDIA: Liquids or slurries; hydrocarbons to water-based media (dielectric 1,7 - 100). VESSELS: Most process or storage vessels up to rated probe temperature and pressure. CONDITIONS: All level measurement and control applications including process conditions exhibiting visible vapors, foam, coating / build up, surface agitation, turbulence and varying dielectric media or specific gravity. A P P L I C AT I O N S A G E N C Y A P P R O VA L S Agency Approval ATEX II 1 G Ex ia IIC T4 Ga, intrinsically safe FM/CSA Russian Authorisation Standards Other approvals are available, consult factory for more details Consult factory for proper model numbers and classifications TECHNOLOGY Horizon Guided Wave Radar is based upon the technology of TDR (Time Domain Reflectometry). TDR utilizes pulses of electromagnetic energy, which are transmitted down a probe. When a pulse reaches a liquid surface that has a higher dielectric than the air/vapor in which it is travelling, the pulse is reflected. An ultra high-speed timing circuit precisely measures the transit time and provides an accurate measure of the liquid level. Reflected Pulse Initial Pulse Air εr = 1 Transmitted Pulse Liquid εr > 1.7 Worldwide level and flow solutions PROBE OVERVIEW Choosing the proper Guided Wave Radar (GWR) probe is the most important decision in the application process. The probe configuration establishes fundamental performance characteristics. Coaxial and twin rod are the 2 basic configurations used today; each with specific strengths and weaknesses. COAXIAL TYPE GWR PROBE signal propagation Ideally suited for: - media ≥ 1,7 - mounting in by-pass cages - most efficient GWR probe end view Beware of: - clogging / buid up inside coaxial tube (max 500 cP) 2 TWIN ROD TYPE GWR PROBE signal propagation end view Ideally suited for: - media ≥ 2,5 - allows moderate build up (viscosity up to 1500 cP) Beware of: - bridging build up between the two rods A complete measuring system consists of: S E L E C T I O N D ATA 1. Horizon® 704 transmitter head/electronics 2. Horizon® 704 GWR probe 1. Order code for HORIZON 704 transmitter head/electronics BASIC MODEL NUMBER 7 0 4 Horizon 704 guided wave radar transmitter POWER 5 24 V DC, two wire OUTPUT 1 0 4-20 mA with HART® communication 4-20 mA only (requires local display and keypad - Accessories code A) MENU LANGUAGE (Hart® communication is only available in English language) 1 2 3 4 English Spanish French German ACCESSORIES A 0 Plug in digital display and keypad Blind transmitter (no display/keypad) – only available for units with HART® communication MOUNTING/APPROVAL 1 A Integral mount, Weatherproof Integral mount, ATEX II 1 G Ex ia IIC T4 Ga (needs cast aluminium housing) HOUSING / CABLE ENTRY 3 0 4 1 4 0 7 0 4 5 Lexan® plastic, 3/4" NPT cable entry (2 entries - cable gland and plug incl.) Cast aluminium, M20 x 1,5 cable entry (2 entries - 1 plugged) Cast aluminium, 3/4" NPT cable entry (2 entries - 1 plugged) complete order code for HORIZON 704 transmitter head/electronics X = product with a specific customer requirement 3 MOUNTING 7MR/7MB min 150 mm (6") max level max level min 150 mm (6") High level shutdown / Overfill protection Special consideration is necessary in any application where guided wave radar is to be used for high level shutdown / overfill protection. To ensure proper measurement, the guided wave radar probe should be installed so the maximum overfill level is a minimum of 150 mm (6") (for 7MB only) below the process connection. This may include utilizing a nozzle or spool piece to raise the probe. No special precautions are required for the 7MR probe. 7MR GWR probe only max level DIMENSIONS in mm (inches) 115 (4.53) 99 (3.90) Blind: 166 (6.54) With display: 175 (6.91) 115 (4.53) Aluminium housing 103 (4.04) 137 (5.39) Probe Insertion Length 1" BSP (G 1") Process Conn. 4 Lexan® housing 95 (3.74) 168 (6.61) Ø 22,5 O.D. (0.88) Probe Insertion Length Probe Insertion Length 3/4" NPT Process Conn. Horizon 7MR with threaded connection Probe Insertion Length 2" BSP (G 2") Process Conn. 153 (6.00) 144 (5.68) 22,5 (0.88) 103 (4.04) 95 (3.75) Coaxial GWR Probe, End View Horizon 7MR with flanged connection 129 (5.08) 126 (4.96) Probe Insertion Length Probe Insertion Length 2" NPT Process Conn. Horizon 7MB with threaded connection Ø 8 (0.31") 22,2 (0.875) Ø 13 (0.50) Rods 41,3 (1.63) Horizon 7MB with flanged connection Twin Rod GWR Probe, End View 2. Order code for HORIZON 704 Coaxial or Twin rod GWR probe BASIC MODEL NUMBER 7 M R 7 M B Overfill safe coaxial GWR probe Twin rod GWR probe (dielectric range: ≥ 1,7) (dielectric range: ≥ 2,5) MATERIAL OF CONSTRUCTION - wetted parts (including process connection flange when applicable) A B C 316/316L (1.4401/1.4404) stainless steel with Teflon® spacers Hastelloy C (2.4819) with Teflon® spacers Monel (2.4360) with Teflon® spacers PROCESS CONNECTION - SIZE/TYPE (consult factory for other process connections) 7MB – Threaded 7MR – Threaded 1 1 2 2 3/4" NPT 1" BSP (G 1") 2 2 2 3 3 3 4 4 4 3 4 5 3 4 5 3 4 5 1" 1" 1" 1 1/2" 1 1/2" 1 1/2" 2" 2" 2" B B C C D D D D B C B C A B D E 7MR – ANSI flanges 150 300 600 150 300 600 150 300 600 lbs lbs lbs lbs lbs lbs lbs lbs lbs 7MR – EN (DIN) flanges DN DN DN DN DN DN DN DN 25 25 40 40 50 50 50 50 PN PN PN PN PN PN PN PN ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI 16/25/40 63/100 16/25/40 63/100 16 25/40 63 100 EN EN EN EN EN EN EN EN Type Type Type Type Type Type Type Type A B2 A B2 A A B2 B2 PROCESS SEAL - MATERIAL 0 8 2" NPT 2" BSP (G 2") 5 5 5 6 6 6 3" 3" 3" 4" 4" 4" 7MR/7MB – ANSI flanges RF RF RF RF RF RF RF RF RF 1092-1 1092-1 1092-1 1092-1 1092-1 1092-1 1092-1 1092-1 4 1 4 2 3 4 5 3 4 5 lbs lbs lbs lbs lbs lbs ANSI ANSI ANSI ANSI ANSI ANSI 7MR/7MB – EN (DIN) flanges E E E E F F F F A B D E A B D E Viton® GFLT seal - for universal use Aegis PF 128 seal - for aggressive media / steam Consult factory for alternative seal materials Max +150 °C (+300 °F) for use on steam 150 300 600 150 300 600 DN DN DN DN DN DN DN DN 80 80 80 80 100 100 100 100 PN PN PN PN PN PN PN PN 16 25/40 63 100 16 25/40 63 100 RF RF RF RF RF RF EN EN EN EN EN EN EN EN 1092-1 1092-1 1092-1 1092-1 1092-1 1092-1 1092-1 1092-1 Type Type Type Type Type Type Type Type A A B2 B2 A A B2 B2 Min. -40 °C (-40 °F) / +200 °C (+400 °F) Min. -20 °C (-4 °F) / +200 °C (+400 °F) INSERTION LENGTH – Specify per cm (0.39") increment 0 6 0 4 9 0 7 M min 60 cm (24") max 490 cm (192") complete order code for HORIZON 704 Coaxial or Twin Rod GWR probe X = product with a specific customer requirement 5 P R O B E S P E C I F I C AT I O N S Description Materials Probe Process seal Probe diameter Mounting 7MR: coaxial GWR probe 7MB: twin rod GWR probe Inside rod: 8 mm (0.315") – Outer tube: 22,5 mm (0.88") Two 13 mm (0,5") Ø rods – 22,2 mm (0.875") CL to CL 316/316L (1.4401/1.4404), Hastelloy® C (2.4819) or Monel® (2.4360) Teflon® with Viton® GFLT or Aegis PF 128 (Consult factory for alternatives) External cage and/or in-tank mounting Process Connection Threaded: 3/4" NPT or 1" BSP (G 1") Flanged: Various ANSI or EN (DIN) flanges Probe length Transition Zone Top Process Temp. Max Bottom Max Process Pressure Max Viscosity Min Dielectric Range Vacuum service Media coating From 60 cm to 490 cm (24 to 192") 0 mm (0") εr: 2,0 = 150 mm (6") / εr: 80 = 25 mm (1") +200 °C @ 18,6 bar (+400 °F @ 270 psi) -40 °C @ 51,7 bar (-40 °F @ 750 psi) 70 bar @ +20 °C (1000 psi @ +70 °F) In-tank mounting only. Twin rod probe must be used in metallic vessel or stillwell > 25 mm (1") from any surface or obstruction. Threaded: 2" NPT or 2" BSP (G 2") Flanged: Various ANSI or EN (DIN) flanges εr ≥ 2,5 = 150 mm (6") εr: 2,5 = 150 mm (6")/εr: 80 = 25 mm (1") +150 °C @ 27,6 bar (+300 °F @ 400 psi) 500 cP 1500 cP Not recommended in case of media coating Film: 3% error of coated length, bridging not recommendedz 1,7 to 100 Negative pressure but not hermetic seal 2,5 to 100 P R E S S U R E / T E M P E R AT U R E R AT I N G – P R O B E S E A L S Process pressure (bar) 7MR probes Process pressure (bar) 7MB probes Process temperature (°C) Process temperature (°C) Transition Zone (zone with reduced accuracy) is dielectric dependent; εr = dielectric permitivity. It is recommended to set 4-20 mA signal out- 6 side transition zones. See graphs. z Bridging is defined as continuous accumulation of material between the probe elements. T R A N S M I T T E R S P E C I F I C AT I O N S FUNCTIONAL/PHYSICAL Description Specification Output 4-20 mA or 4-20 mA with HART® 3,8 to 20,5 mA useable (meets NAMUR NE 43) Power (at terminals) Span Resolution Loop Resistance (see graph at page 8) Damping Diagnostic Alarm User Interface Display Menu Language Housing Material Approvals Electrical Data Equivalent Data Shock/Vibration Class Net weight Overall Dimensions PERFORMANCE 12 to 28,4 V DC 150 to 4900 mm (6 to 192") Analog: 0,01 mA Display: 0,1 cm (inch) 550 Ω @ 24 V DC (20,5 mA) Adjustable 0-10 s Adjustable 3,6 mA, 22 mA, HOLD last output (3,6 mA is not valid if unit includes both digital display and HART®) 3-button keypad and/or HART® communicator 2-line x 8-character LCD English/Spanish/French/German IP 67/Aluminium A356T6 (< 0.20 % copper) or Lexan® Thermoplastic ATEX II 1 G Ex ia IIC T4 Ga Other approvals are available, consult factory for more details Ui = 28,4 V, li = 94 mA, Pi = 0,67 W Ci = 20 nF, Li = 400 µH ANSI/ISA-S71.03 Class SA1 (Shock), ANSI/ISA-S71.03 Class VC2 (Vibration) Aluminium: 1,6 kg (3.5 lbs) – electronics only Lexan®: 0,7 kg (1.5 lbs) – electronics only Aluminium (blind): H 166 mm (6.54") x W 99 mm (3.90") x Ø 115 mm (4.53") Aluminium (with display): H 175 mm (6.91") x W 99 mm (3.90") x Ø 115 mm (4.53") Lexan®: H 153 mm (6") x W 95 mm (3.75") x Ø 115 mm (4.53") Description Specification Linearity 7MR GWR probe: ± 6,3 mm (0,25") 7MB GWR probe: ± 12,7 mm (0,50") Reference Conditions Resolution Repeatability Hysteresis Response Time Warm-up Time Ambient Temp. Process Dielectric Effect Operating Temp. Effect Humidity Electromagnetic Compatibility Reflection from water at +20 °C (+70 °F) with 183 cm (72") coaxial GWR probe ± 4 mm (0.15") < 4 mm (0.15") < 4 mm (0.15") < 1 second < 5 seconds blind transmitters transmitters with LCD -40 °C to +80 °C (-40 °F to +175 °F) – Aluminium housing -40 °C to +70 °C (-40 °F to +160 °F) – Lexan® housing -20 °C to +70 °C (-5 °F to +160 °F) < 13 mm (0.5") within selected range Approx. ± 0,03 % of probe length/°C for probes ≥ 2,5 m (8') 0-99 %, non-condensing Meets CE requirements (EN-61326: 1997 + A1 + A2) (twin-rod probe must be used in metallic vessel or stillwell) 7 L O O P R E S I S TA N C E 1200 1000 Ω 800 20,5 mA 600 550 400 200 0 0 10 12 24 Vdc 20 30 INTRINSICALLY SAFE (IS) 40 Vdc ELECTRICAL WIRING 0% Connect shield to ground 100 % Standard shielded twisted cable Galvanic Barrier (only needed for intrinsically safe units): max 28,4 V DC @ 94 mA Ex Non Ex 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. PRODUCT WARRANTY :2008 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. 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