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A Team of Experts

• Achim Bletz
• More than 20 years of experience in sensor
  development, out of which he spent more than
• 15 years with KROHNE
• Since 15 years he holds RD and management
  positions for Pulse and FMCW
• level sensor development
• Projects BM100 (first TDR level sensor on the
  market), BM102 (first 2-wire TDR sensor),
• Optiflex, Optiwave, KFA1, KFA2 and KFA3
• Ralf Quattländer
• More than 10 years of experience in Product
  Management, RD (mechanics, HMI design),
• Patents and marketing/sales for level sensor
  with EndressHauser and KROHNE
• Projects Liquiphant FTL20, Optiwave, Optilevel,
  KFA1, KFA2, KFA3
• Outstanding experience with label agreements
• Florian Stengele
• More than 15 years of experience in Product
  Management and executive positions in
• level measurement Head of Marketing Level
  Measurement, Director of Level Switches
• (responsible for the entire innovation process
  including RD, marketing, quality, etc. for EH
• Vice President at KROHNE, in charge of entire
  Level Measurement business, CEO of KROHNE SAS

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Vibex Technology
Measurement Principle
Vibrating Fork Technology Natural resonant
frequency is the same as a tuning fork.
Frequency depends on dimensions, shape and
material The natural resonant frequency of
Vibex is 1,200 Hz Frequency avoids interfaces
with plant vibration, and optimizes size
of fork
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Vibex Technology
Measurement Principle

• If the vibrating fork is covered by liquid, its
  natural resonant frequency changes, which is
  detected by the sensor and converted into a
  switching output signal. If the vibrating fork is
  not covered by liquid any more, its natural
  resonant frequency changes back and so does the
  state of the switching output.

U
U
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Vibex Unique Features

• Simple, compact design
• Extremely reliable
• Setup without adjustment or calibration
• Independent of liquid properties and
  installation conditions
• No moving parts, thus wear and maintenance free

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Vibex Advantages

• Floats
• No moving parts inside the tank, i.e. no
  maintenance required
• Independent of the density of the liquid, i.e.
  one sensor for all types of liquids
• No problems with turbulence, aerated
  liquids/air bubbles, foaming, coating
  liquids/build-up, slurries, solid particle
  content
• Conductivity
• Independent of the conductivity of the liquid,
  i.e. one sensor for all types of liquids...works
  well in oil
• Capacitance
• Independent of the dielectric constant of the
  liquid, i.e. one sensor for all types of liquids
  and no (re-)calibration necessary... works well
  in oil

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Vibex LSV1
Technology Vibrating Fork Technology
Application Point Level Detection in Liquids in Non-Hazard Areas
Output Switching Outputs Transistor or Contact-less Electronic Switch
Process Connection 3/4 or 1 (NPT or G)
Hysteresis 2mm
Temperature F -40 to 212 or -40ºF 302º C -40 to 100 or -40 to 150
Pressure -1...64 bar
Protection NEMA 6, IP67 (with M12x1 plug)
Housing 316L
Surface Roughness Ra lt3,2µm
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Tracer Technology
Measurement Principle

• TDR (Time Domain Reflectometry) Technology
• low-energy, high-frequency electromagnetic
  impulses, generated by the sensors circuitry,
  are propagated along the probe which is immerged
  in the liquid to be measured.
• When these impulses hit the surface of the
  liquid, part of the impulse energy is reflected
  back up the probe to the circuitry which then
  calculates the fluid level from the time
  difference between the impulses sent and the
  impulses reflected.
• The sensor can output the analyzed level as a
  continuous measurement reading through its analog
  output, or it can convert the values into freely
  positionable switching output signals.
• TDR-Sensors are also known as Guided Radars or
  Guided Wave Radars.

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Tracer Technology
Measurement Principle
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Tracer Technology
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Level Technology Comparison Points

• TDR vs. Through the Air Radar Ultrasonic
• No influence of the tank geometry or obstacles
  in the tank, i.e. great flexibility for mounting
  the sensor and robust/reliable measurement under
  all conditions
• Very small inactive zones (area at top or
  bottom of the measurement range where sensors
  usually do not measure correctly), i.e. very
  suitable for small tanks
• Immune against changes in the tank atmosphere
  such as pressure, temperature or dust, i.e.
  robust and reliable measurement under all
  conditions

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Level Technology Comparison Points

• TDR vs. Float Magneto-restrictive
• No moving parts inside the tank, i.e. no
  maintenance required
• Independent of the density of the liquid, i.e.
  one sensor for all types of liquids
• No problems with turbulence, aerated
  liquids/air bubbles, foaming
• TDR vs. Pressure
• Independent of the density of the liquid, i.e.
  one sensor for all types of liquids
• TDR vs. Capacitance
• Independent of the dielectric constant of the
  liquid, i.e. no (re-)calibration necessary by the
  customer...works well in oil

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TDR Products Tracer 1000 Tracer 2000
Tracer 1000
Tracer 2000
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Tracer 1000
Technology TDR (also Known as Guided Wave Radar)
Applications Level Measurement of Liquids and Light Solids
Lengths of Probe Single Rod 1.5 240 Coaxial Probe 1.5 240 Cable Proble 1.5 780
Material Exposed to Tank Atmosphere 316 SS Rod 1.4404 / 316L and PEEK Cable Probe 1.4401 / 316 and PEEK Coaxial 1.4401 / 316L, PEEK O-ring Gasket at connection thread Klingersil C-4400, 0.2cm thick
Process Temperature -40ºF 302ºF
Accuracy .012
Process Connection ¾ NPT
Electronic Input 4-wire
Output 4-20mA HART and switch output DC PNP
Housing Aluminum
Protection IP68, NEMA6P
Approvals II 1/2G Ex ia/d IIC T6 II 1/2D Ex iaD/tD A20/21 IP68 T86ºC
Communication HART
Patents Registered
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Tracer 2000
Technology TDR (also Known as Guided Wave Radar)
Applications Level Measurement of Solids
Lengths of Probe Single Rod 1.5 240 Cable Proble 1.5 780
Material Exposed to Tank Atmosphere 1.4404/316L and Peek
Process Temperature -40ºF 302ºF
Accuracy .012
Process Connection 1 NPT
Electronic Input 4-wire
Output 4-20mA HART and switch output DC PNP
Housing Aluminum
Protection IP68, NEMA6P
Approvals II 1/2G Ex ia/d IIC T6 II 1/2D Ex iaD/tD A20/21 IP68 T86ºC
Communication HART
Patents Registered
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Tracer System Components
Tracer 1000
Tracer 2000
Cartridge
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Probe Comparison Tracer 1000 Tracer 2000
Max. rod length Rod diameter Max. rope length Rope diameter Max. load Temperature Pressure
Tracer 1000 20ft .25 65.6ft .25 1100lb -40ºF to 302ºF -14.5 to 580 psi
Tracer 2000 20ft .25 65.6ft .25 2200lb -40ºF to 302ºF -14.5 to 580 psi
Tracer 1000
Tracer 2000
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Design of Feedthroughs
Tracer 1000
Tracer 2000
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Applications
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Tracer 1000 Frequently Asked Questions

• What are the process characteristics?
• - Liquid or Solid
• What output do you need?
• - Limit switch or continuous
• What connections are available?
• - Flange, nozzle, connections, etc...
• What medium is inside the tank?
• What is the tank material?
• What are the process conditions?
• - Pressure and temperature
• - Corrosiveness, dielectric constant
• - Turbulences
• - Foam

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Tracer 1000 Applications

• Small Atmospheric Tanks and Vacuum Tanks
• Sticky Fluids with Extreme Colds and Hot
  Atmosphere
• Process Reactors and Blending Vessels
• Stilling Wells
• Difficult Tank Geometries
• All Types of Processing and Storage Applications
• Exceptional Performance in Liquids with Low
  Dielectric Constant

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Tracer 1000 Applications
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Tracer 1000 Applications
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Tracer 1000 Applications
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Tracer 1000 Applications
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Tracer 1000 Applications
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Tracer 1000 Applications
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Tracer 2000 Applications

• Solid Applications (i.e. grains, sugar, plastic
  pellets, fly ash, lime, cement, coal bunkers)
• Mount in Any Tank Height
• Difficult Tank Geometries
• Difficult Ambient Conditions (i.e. dust, vapor,
  vacuum, steam-condensing humidity)

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Radar Technology Advantages
There are many choices for level and none work on
every application... But there are many
applications where Guided Wave Radar (TDR) is the
best fit!
Advantages Measures level directly No moving
parts Handles changing density / dielectrics /
conductivity Handles heavy vapors and
condensation Best fit for small tanks,
difficult tank geometry Small connection sizes
(3/4), and threaded nozzles Easy swap -
displacer capacitance replacer Handles foams
differently than non-contacting principles
Works in turbulence/ low dielectric
applications Can measure solids, powders,
granules
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Tracer 1000 Main Features

• All Liquid Applications requiring excellent
  accuracy, durability and fast response times (70
  times faster than the competition)
• Eliminates sticking problems which affects
  floats, capacitance rods and pressure sensors.
• Low Cost (price points lower than ultrasonics)

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Tracer 2000 Main Features

• Strong rugged design can withstand over 2200 ft
  lb. of pulling force
• Reliable signal response with uneven surface
  conditions (i.e. rocks, gravel, sand)
• Low cost (priced lower than through the air
  radar or plumb bobs)

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Tracer 2000 Advantages

• Main Advantages of the TDR technology in solid
  applications
• Independent from moisture content or dust
  properties
• No moving parts ??maintenance-free
• Independent from filling noise or dust even
  during pneumatic filling
• Independent from surface properties
• Main Advantages for TDR against ultrasonic and
  free space radar in solid applications
• No mirror effect at fine-grained bulk solids
• Perfect for smooth inclined surface
• Very small required space for the measuring
  beam (only 11.8
  around the probe)
• Perfect for narrow silo with fixtures and
  fittings

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Sustainable Competitive Advantage

• Fast delivery time due to local assembly we can
  deliver within 24 hours.
• More attractive price We offer the Tracer 1000
  and Tracer 2000 at least 30 cheaper than other
  comparable radar products.

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Technique and Installation
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Sensor Components

• Tracer 1000 2000 consist of three major
  components
• Housing
• Feedthrough
• Probe
• Parts exposed to tank
• - Probe and the part of the feedthrough
  below the hexagon
• Housing
• - Contains the sensors electronics and
  input/output terminals
• Feedthrough
• - Mounted into the bottom of the housing and
  serves two main purposes its outer threaded
  metal bushing securely connects the sensor to the
  tank and its inner components guide the
  high-frequency measurement signal from the
  electronics through the tank wall into the tank
  and back.
• Probe
• - Mounted onto the bottom of the
  feedthrough the high-frequency measurement
  signal is propagated along the probe.

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Probe Design

• To meet various application requirements,
  Tracer 1000 has three different probe types a
  single rod probe, a cable probe and a coaxial
  probe
• The probe design of Tracer 1000 Tracer 2000
  is fully modular, i.e. the probe types are
  interchangeable
• The single rod probe actually forms the inner
  conductor of the coaxial probe
• A standard ?" tube is mounted over the single
  rod probe and tightened with a very simple, yet
  safe, ferrule/locknut-style connection similar
  to the ones widely used in standard tube fittings

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Cable Probe

• Single Rod / Cable Probe
• Suitable for a very wide range of applications
  
• The signal has a wider detection radius around
  the cable
• Thus, it is more responsive for measurement
  signal disturbances which can be easily overcome
  by observing a few mounting considerations and
  making simple configuration adjustments to the
  sensor
• The single rod probe is also recommended for
  installation in bypass chambers and stilling
  wells, which basically act together with the rod
  as a big coaxial probe.

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Coaxial Probe

• In the coaxial probe, the high-frequency
  measurement signal is completely contained within
  the outer tube.
• Immune against any external conditions and
  interfering objects outside its tube
• Ideal solution for a hassle-free drop-in
  anywhere installation ensuring reliable
  measurement under almost any application
  condition.
• Ideal choice for measuring low reflectivity
  liquids (i.e. low dielectric constant) such as
  oils and hydrocarbons.
• Recommended for the use with clean liquids
  only
• NOT recommended with viscous, crystallizing,
  adhesive, coating, or sticky liquids fibrous
  liquids, sludge, slurry, pulp any liquids
  containing solid particles. Such liquids might
  cause build-up, bridging or clogging inside the
  coaxial probe.

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Configuration

• Basic configuration of the Tracer can be done
  directly on the device via a DIP switch, a single
  push button and visual feedback from an LED
• All settings required to get Tracer 1000/2000
  fully operational can be performed directly on
  the device
• Or Tracer 1000/2000 can be ordered completely
• pre-configured
• For greater convenience, remote configuration,
  and extensive diagnostics a simple Microsoft
  EXCEL spread sheet is provided through which the
  configuration can be done
• A standard HART modem is required for
  communication between computer and sensor
• Communication happens via a digital HART
  signal that is superimposed onto the analog
  4-20mA signal of the current output

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TDR Q A
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