Pulsar® Model R86 26 GHz Pulse Burst Radar Level Transmitter D E S C R I P T I O N The Pulsar® Model R86 radar transmitter is the latest generation of Magnetrol® 24 VDC, loop-powered, noncontact radar transmitters. Enhanced performance, proactive diagnostics, and various configuration wizards bring simplicity to an often complex technology. This latest entry into the radar level measurement field is designed to provide unparalleled performance and ease of use. The 26 GHz Pulsar Model R86 is the perfect complement to the 6 GHz Pulsar Model R96 and Eclipse® Model 706 GWR transmitters. Together, this transmitter family offers the ultimate solution set to those difficult industrial process level applications. T E C H N O L O G Y The Pulsar Model R86 radar transmitter is based on pulse burst radar technology combined with equivalent time sampling circuitry. Short bursts of 26 GHz microwave energy are emitted and subsequently reflected from the liquid level surface. Distance is first measured by the equation: D = Transit time (round-trip)/2. Liquid level is then calculated based on transmitter configuration. A P P L I C A T I O N S MEDIA: Liquids and slurries; hydrocarbons to waterbased media (dielectric 1.7–100, 1.4 in stillwell) VESSELS: Most process or storage vessels up to rated temperature and pressure. Pits and sumps as well as glass-lined tanks. 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. F E A T U R E S • Multivariable two-wire, 24 VDC loop-powered transmitter for level, volume, or flow • Performance not process dependent (changing specific gravity and dielectric have no effect) • 26 GHz operating frequency offers superior performance with better accuracy and enhanced resolution • Antenna designs to +750 °F (+400 °C), -14.7 to 2320 psi (-1.0 to 160 bar) • Range up to 130 feet (40 meters) • Quick connect/disconnect antenna coupling allows vessel to remain sealed • 4-button keypad and graphic LCD display allow for convenient viewing of configuration parameters and echo curve • Proactive diagnostics advise not only what is wrong, but also offer troubleshooting tips • Convenient Setup and Echo Rejection Wizards (Echo Rejection setup is simple, intuitive, and effective) • SIL 2 suitable (93.2% SFF, with full FMEDA report available) • PACTware™ PC Program and enhanced DTMs for advanced configuration and troubleshooting • Available with HART® or FOUN

The Pulsar R86 is a top-mounted, downward-facing pulse burst radar operating at 26 GHz. Unlike true pulse devices (e.g., Eclipse Guided Wave Radar) which transmit a single, sharp (fast rise-time) waveform of wide-band energy (Figure 1), Pulsar emits short bursts of 26 GHz energy (Figure 2) and measures the transit time of the signal reflected off the liquid surface. Distance is measured utilizing the equation: Distance equals the Speed of light multiplied by the transit time divided by two (Distance = C × Transit Time/2). Level is then calculated by factoring in tank height and other configuration...

Radar applications are characterized by three basic conditions: • Dielectric (process medium) Sensor Reference Point • Distance (measuring range) • Disturbances (turbulence, foam, false targets, multiple reflections) Safety Zone The PULSAR R86 Radar transmitter is offered with several horn antenna sizes and configurations: Sensor Level Distance Measurement Region Tank Height Level = Tank Height – Distance • 3" (75 mm) • 4" (100 mm) Bottom Blocking Distance Maximum measuring range (distance) is measured from the sensor reference point (bottom of NPT thread, gasket face of BSP thread, or gasket...

M O U N T I N G The Pulsar Model R86 Radar transmitter can be mounted on a vessel using a variety of process connections. Generally either a threaded or flanged connection is used. Ideally, the Radar transmitter should be mounted 1⁄2 radius from center of the tank providing an unobstructed signal path to the liquid surface where it can illuminate (with microwave energy) the largest possible surface area. A conservative recommendation is to 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....

Improper installation in a nozzle creates “ringing” (undesired signals) which can adversely affect measurement. The antenna should always be mounted such that the active section of the antenna is a minimum of 0.5" (13 mm) below the nozzle. Be sure to include any nozzle dimension that may extend down inside the vessel. Refer to Figure 10. Antenna extensions are offered to allow the Pulsar Model R86 transmitter to work reliably in nozzles with an “L” dimension up to 72" (1.8 m). " L " Dimension (Nozzle Height) The Pulsar Model R86 transmitter utilizes circular polarization. This means that the...

T E M P E R A T U R E / P R E S S U R E Pressure Ratings – Standard Horn Antennas Pressure Ratings – Isolation Antennas ALUMINA SEAL PTFE SEAL Standard Seal 10th digit = 0, 2, 8 or A A: Standard Seal, PTFE B: Standard Seal with Extension D: HTHP Seal with Extension With Temperature Extention Part No. 032-6922-001 Max. Max. Max. Max. Temp. of Ambient T-code Temp. of Ambient T-code Process Temp. Process Temp. +70 °C +130 °C +42 °C HTHP Seal 10th digit = N Safe Operating Regions Pressure (psig) Pressure (psig)

STORAGE HOLDING CONDITIONS – Calm Surfaces CONDITIONS – Turbulence, Foam, and Changing Dielectric REACTORS CONDITIONS – Turbulence and Foam MIXING AND BLENDING VESSELS CONDITIONS – Turbulence, Foam, and Changing Dielectric Extensive Selection of Primary Flow Elements With a total of 35 flume and weir curves stored in the electronics, it would be hard to find an open channel flow application that cannot be handled by the R86 transmitter. Unusual flow applications can readily be accomplished through the use of either the 20-point Custom Table or the Generic Discharge Flow Equation which allows...