R95-510A-A30

Pulse Burst Radar Level Transmitter DESCRIPTION The Pulsar® Radar transmitter is the latest generation of loop-powered, 24 VDC, level transmitters. It has lower power consumption, faster response time and is easier to use than most loop-powered radar transmitters. This latest entry into the radar level measurement field is designed to provide unparalleled performance and ease of use. PULSAR non-contact radar is the perfect compliment to the Magnetrol® Eclipse® Guided Wave Radar. These transmitters offer the ultimate solution to the vast majority of process level applications. TECHNOLOGY The PULSAR Radar transmitter is based on pulse burst radar technology together with equivalent time sampling circuitry. Short bursts of 5.8 or 6.3 GHz microwave energy are emitted and subsequently reflected from the liquid level surface. Distance is calculated by the equation D = Transit time (round-trip)/2. Liquid level is then calculated by applying the tank height value. FEATURES • Two-wire, 24 VDC loop-powered level transmitter • PACTware™ PC Program using HART® communication for advanced configuration and troubleshooting. (see bulletin 59-101) • Performance not process dependent (changing specific gravity and dielectric have no effect) • 5.8/6.3 GHz operating frequency offers superior performance in the tougher applications of turbulence, foam, and heavy vapors • False Target setup is simple, intuitive and effective • Will reliably track extremely rapid rate of change up to 180 inches (450 cm)/minute • Antenna designs to +400° F (+204° C), -14.7 to 750 psig (-1.0 to 51.7 bar) • Range up to 65 feet (20 meters) • Quick connect/disconnect antenna coupling allows vessel to remain sealed (patent pending) • Extremely low output at antenna: < .01 mW (avg), < 2 mW (max); hundreds of times less than a cell phone • Safety Integrity Level (SIL) value of 1 (SFF 73.7%) APPLICATIONS MEDIA: Liquids and slurries; hydrocarbons to water based media (dielectric 1.7–100) VESSELS: Most process or storage vessels up to rated temperature and pressure. Pits and sumps as well as non-metallic tanks such as plastic, glass-lined and concrete. CONDITIONS: Virtually all level measurement and control applications including process conditions exhibiting varying specific gravity and dielectric, visible vapors, high fill/empty rates, turbulence, low to moderate foam and buildup. APPLICATIONS PULSE BURST AND RADAR INTERMEDIATE HOLDING TANKS STORAGE CONDITIONS – Calm Surfaces REACTORS CONDITIONS – Turbulence and Foam ENCLOSED SUMPS CONDITIONS – Turbulence, Foam, and Changing Dielectric 2 APPLICATIONS PULSE MIXERS BURST AND RADAR BLENDING VESSELS CONDITIONS – Turbulence, Foam, and Changing Dielectric CHAMBERS AND BYPASS PROBLEMATIC GUIDED WAVE APPLICATIONS ALTERNATIVE RADAR Some applications can be problematic for Pulse Burst Radar. The following are examples of when Guided Wave Radar is recommended. • Extremely low dielectric media (εr 1.0" None Light, < 0.5" Moderate, < 1.0" Heavy, > 1.0" Figure 5 3.0-10.0 10.0-100 Œ Minimum dielectric = 2.0 Figure 4 5 MOUNTING The PULSAR Radar transmitter can be mounted to a vessel using a variety of process connections. Generally either a threaded or flanged connection is used. LOCATION >18" (>45 cm) 1/2 Radius Ideally the Radar transmitter should be mounted 1⁄2 radius from center providing an unobstructed signal path to the liquid surface where it should illuminate (with microwave energy) the largest possible surface area. Do not install in center of tank top or within 18 inches (45 cm) of tank wall. Tank walls may produce reflections that must be minimized during field configuration (Orientation). Refer to Figure 6. BEAM ANGLE The various antenna designs exhibit different beam patterns. Figure 8 shows the beam angles for all PULSAR antennas. Ideally the beam pattern should illuminate the maximum liquid surface with a minimum striking other objects in the vessel including the tank wall. Use these drawings to determine the optimum installation location. OBSTRUCTIONS Figure 6 Almost any object that falls within the beam pattern will cause reflections that may be misinterpreted as a false liquid level. Although PULSAR has a powerful False Target Rejection routine, all possible precautions should be taken to minimize false target reflections with proper installation and orientation. Refer to Figures 7 & 8. ∝ W D ∝ W Beam Spread, W @-3dB; ft (m) Antenna Beam Angle (∝) Distance, D 10 (3) 20 (6) 30 (9) 40 (12) 50 (15) 60 (18) 65 (20) 4.5 (1.37) 8.9 (2.71) 13.3 (4.05) 17.8 (5.43) 22.2 (6.77) 26.6 (8.11) 28.9 (8.81) 4.5 (1.37) 8.9 (2.71) 13.3 (4.05) 17.8 (5.43) 22.2 (6.77) 26.6 (8.11) 28.9 (8.81) 3.0 (0.91) 6.0 (1.83) 9.0 (2.74) 12.0 (3.66) 15.0 (4.57) 18.0 (5.49) 19.5 (5.95) Dielectric Rod 25° 4" Horn 25° 6" Horn 17° Figure 7 6 Figure 8 MOUNTING NOZZLES Improper installation in a nozzle creates “ringing” which will adversely affect measurement. The antenna should always be mounted so the active section of the antenna is a minimum of 0.5" (12 mm) below the nozzle (be sure to include any nozzle dimension inside the vessel). Refer to Figure 9. Antenna extensions are offered to allow the PULSAR transmitter to work reliably in nozzles with “L” dimensions of 1" (25 mm), 4" (100 mm), 8" (200 mm) or 12" (300 mm). Standard antennas are shown below for reference. ∅ D Inactive Area Dielectric Rod Antenna Coupling 2" (50 mm) Minimum Diameter Horn Antenna " L " Dimension 8" (200 mm) 0.50" (13 mm) Minimum 2" (50 mm) 2" (50 mm) 0.68 (17) Thread Engagement 2.8 (55) DIELECTRIC RODS C ∅ A D Model # 8th Digit 0 B Antenna Extension (maximum “L” dimension) 1" (25 mm) 4" (100 mm ) 8" (200 mm) 12" (300 mm) All Dim A 2.2 (56) All Dim B 11.1 (282) BSP Dim C 3.0 (76) 5.9 (150) 9.9 (251) Antenna Extension O.D. Dimension D TFE Rod PP Rod All-Plastic Rod ∅ 1.625 (41) ∅ 1.50 (38) ∅ 1.625 (41) 1 2 3 5.1 (130) 14.0 (356) 9.1 (231) 18.0 (457) 13.1 (333) 22.0 (559) 13.9 (353) HORNS Model # 3 (76) 8th Digit 0 1 Antenna Extension (maximum “L” dimension) 1" (25 mm) 4" (100 mm ) 8" (200 mm) 12" (300 mm) 3" Horn Dim H 2.7 (51) 4" Horn Dim H 6" Horn Dim H 4.6 (117) N/A 8.4 (213) 12.4 (315) 2.95" (75 mm) 3.75" (95 mm) 8.3 (211) 12.4 (315) 5.75" (146 mm) H 2 3 ∅ Aperture Aperture Figure 9 7 STANDPIPES AND STILLWELLS PULSAR can be mounted in a standpipe or stillwell but certain considerations should be given: • Metal stillwells only: Sizes 3–8 inches (80–200 mm). • Diameter must be consistent throughout length; no reducers. • Use only horn antennas sized to pipe ID; 3–6" (80–150mm); 8" pipe can use a 6" horn. • Stillwell length must cover complete range of measurement (i.e., liquid must be in stillwell). • Welds should be smooth. • Vents: holes 0. • There will be a slight reduction in Maximum Range based on the table at right. PIPE I.D. inch 3 4 6 8 mm 80 100 150 200 Propagation Speed Factor 0.915 0.955 0.98 0.99 Maximum Range feet 60.0 62.7 64.3 65.0 meters 18.3 19.1 19.6 19.8 Index Mark Figure 10 MOUNTING ORIENTATION The PULSAR transmitter utilizes a linearly polarized, microwave beam that can be rotated to improve its performance. Proper orientation can minimize unwanted target reflections, decrease sidewall reflections (multipath) and maximize direct reflections from the liquid surface. The index mark located on the side of the launcher is oriented in the same direction as the polarization. Refer to Figure 11. The index mark is also present for reference (1 dot: GP/IS or 2 dots: XP). The launcher is considered to be at 0° when the index mark is closest to the tank wall. rk x ma inde 45° Set Screw Universal Connector Figure 11 8 AGENCY AGENCY APPROVALS PROTECTION METHOD AREA CLASSIFICATION MODEL FM RX5-5X0A-1X0 Intrinsically Safe RX5-5X0A-3X0 Explosion Proof Non-Incendive Œ Intrinsically Safe  RX5-5X0A-XX0 CSA RX5-5X0A-1X0 RX5-5X0A-3X0 Explosion Proof  Non-Incendive Œ Intrinsically Safe Ž Explosion Proof  RX5-5X0A-XX0 ATEX R05-5X0A-AX0 R05-5X0A-CX0 Class I, Div. 1; Groups A, B, C, & D Class II, Div. 1; Groups E, F, & G Class III, NEMA 4X, T4 @80°C Entity Class I, Div. 1; Groups B, C & D Class II, Div. 1; Groups E, F, & G Class III, NEMA 4X, T5 @80°C Class I, Div. 2; Groups A, B, C, & D Class II, Div. 2; Groups F & G Class III, NEMA 4X Class I, Div. 1; Groups A, B, C, & D Class II, Div. 1; Groups E, F & G Class III, Type 4X, T4 @80°C Entity Class I, Div. 1; Groups B, C & D Class II, Div. 1; Groups E, F, & G Class III, Type 4X, T5 @80°C Class I, Div. 2; Groups A, B, C, & D Class II, Div. 2; Groups E, F, & G Class III, Type 4X, T4 @80°C ATEX II 1G EEx ia IIC T4 @70°C IEC Ex ia IIC T4@70°C ATEX II 1/2G EEx d IIC T6 @70°C Œ Measured media inside vessel must be non-flammable only.  The antenna complies with Canadian Electrical Code requirements of ANSI/ISA 12.27.01-2003 as a single seal device. Ž Ex ia When an insulated probe is used in a potentially explosive atmosphere caused by gas, damp or a non-conducting liquid, precautions must be taken to avoid ignition due to hazardous electrostatic charges.  Ex d When the transmitter enclosure that is made of aluminum alloy is installed in a potentially explosive atmosphere, requiring the use of apparatus of equipment category 1G, it shall be installed so that in the event of rare incidents, an ignition source due to impact or friction between the enclosure and iron/steel is excluded. The transmitter’s antenna shall be installed so that electrostatic discharges are prevented. Special conditions for safe use: These units have been tested to EN 61326: 1997+A1+A2 and are in compliance with the EMC Directive 2004/108/EC. ATEX/IEC Entity Parameters Vi li Pi Ci Li 28.4VDC 120mA 0.84w 430µH 2.2nF SIL PULSAR SIL Model RX5 1 as 1oo1 B 73.7% 9.72E-04 FITS Fail Dangerous Undetected Fail Dangerous Detected Safe 222 308 314 Annual 1.94E-03 2.70E-03 2.75E-03 COMMUNICATIONS APPROVALS Region US Canada Europe Agency FCC IC RTTE Frequency 6.3 Ghz 6.3 Ghz 5.8 Ghz Instrument Type SFF PFDavg 9 TRANSMITTER SPECIFICATIONS FUNCTIONAL/PHYSICAL System Design Measurement Principle Input Measured Variable Span Output Type Range Resolution Loop Resistance Diagnostic Alarm Damping User Interface Keypad Indication Digital Communication Power (Measured at instrument terminals) General Purpose Intrinsically Safe Explosion Proof Housing Material Cable Entry Ingress Protection Net/Gross Weight Overall Dimensions Aluminum 316 Stainless steel Cast aluminum A356T6 (