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New radar generation
KROHNE OPTIWAVE

Radar Transmitter with 80 GHz for the industrial market.

KROHNE OPTIFLEX
Compact and reliable
Radar Transmitters


Reliability tested on OPTIFLEX 1300 / 2200

KROHNE OPTIWAVE 15XX
80 GHz radar level and
flow transmitters

For simple liquid and bulk solid applications

KROHNE BM 26
Visual and radar level together

Magnetic bypass Level Indicator (MLI) for general-

purpose applications

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KROHNE guided radar transmitters work by using the Time Domain Reflectometry (TDR) principle, where they send low-power, high-frequency pulses along a probe submerged in the process media. When a pulse hits the liquid's surface, part of its energy is reflected back to the device, and the transmitter calculates the level by measuring the time difference between sending the pulse and receiving the reflection.

KROHNE OPTIWAVE radar level transmitters work on the frequency-modulated continuous wave (FMCW) principle, emitting a high-frequency radar signal that increases in frequency during measurement. This signal reflects off the surface of the liquid or solid, and the time delay is used to calculate the distance to the surface. The frequency difference (\(\Delta f\)) between the transmitted and received signal is directly proportional to this distance, which is then converted into a level measurement. 

KROHNE Guided radar (TDR) - Level Transmitter OPTIWAVE Series (Continuous, contact)

KROHNE Radar Level Transmitter OPTIWAVE Series (Continuous, no contact)

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KROHNE OPTIFLEX 8200 C/F - for liquids at high temperature and pressure - OPTIFLEX Series (164)

OPTIFLEX 8200 C/F - level transmitter for liquids at high temperature and pressure - Part number VFAC401110211610K10H1A006 / Process fitting / Material - 2¨ 150 lb - RF, 316L stainless steel / Electronics - 4–20 mA with HART / Display - Display / up to 320 barg (4641 psig) and +315°C (+599°F)

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KROHNE OPTIFLEX 6200 C/F - for solids from granulates to powders - OPTIFLEX Series (165)

OPTIFLEX 6200 - level transmitter for solids from granulates to powders - Part number VFAB401110211610310L1A006 / Process fitting / Material - 3¨ 150 lb - RF (ASME B16.5 flanges ①O) / Electronics - 4–20 mA with HART / Display - Display / Horizontal side / up to 40 barg (580 psig) and +200°C (+392°F)

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KROHNE OPTIFLEX 3200 C/F - for liquids with hygienic requirements - OPTIFLEX Series (166)

OPTIFLEX 3200 -level transmitter for liquids with hygienic requirements - Part number VFAD401110211610410GFT006 / Process fitting / Material - DN40 DIN 11851①4) / Electronics - 4–20 mA with HART / Display - Display / Horizontal side /up to 40 barg (580 psig) and +150°C (+302°F)

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KROHNE OPTIFLEX 7200 C - for liquids in storage and process applications - OPTIFLEX Series (167)

OPTIFLEX 7200 C - level transmitter for liquids in storage and process applications - Part number SFA901100312410MN0HH1000 / Process fitting / Material - DN50 PN63 - Type B1 ①2 (EN 1092-1 flanges ①4) / Electronics - 4–20 mA with HART / Display - Display Vertical top / up to 100 barg (1450 psig) and +250°C (+482°F)

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KROHNE OPTIFLEX 1300 C - for heavy-duty and interface applications - OPTIFLEX Series (168)

OPTIFLEX 1300 C - Level Transmitter for heavy-duty and interface applications - Part number VF714004200C001210000000 / Process fitting / Material - 4¨ 150 lb RF ASME B16.5 / Electronics - 4–20 mA with HART / Display - Display Vertical top / up to 1316L (1.4404) / 40 barg (580 psig) Standard / -40…+150°C (-40…+302°F) / FKM/FPM

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KROHNE OPTIFLEX 1100 C - Continuous level measurement of liquids and solids - OPTIFLEX Series (169)

OPTIFLEX 1100 C - Continuous level measurement of liquids and solids - Part number VF2541A522100 / Process fitting / Material - ¾ NPT (ASME B1.20.1) / Electronics - 4–20 mA with HART / Display - With an integrated display / up to -50...+100°C and -1...16 barg / -58...212°F and -14.5...232 psig

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KROHNE OPTIFLEX 1100 C - Continuous level measurement of liquids and solids - OPTIFLEX Series (170)

OPTIFLEX 1100 C - Continuous level measurement of liquids and solids - Part number VF25413522100 / Process fitting / Material - ¾ NPT (ASME B1.20.1) / Electronics - 4–20 mA with HART / Display - With an integrated display / up to -50...+100°C and -1...16 barg / -58...212°F and -14.5...232 psig

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KROHNE OPTIWAVE 5200 C - for liquids in storage and process applications - OPTIWAVE Series (171)

OPTIWAVE 5200 C - Level Transmitter for liquids in storage and process applications - Part number SF50921LD3GP2A14C10000121/ Process fitting / Material - 6¨ 300 lb RF / Electronics - 4–20 mA with HART / Display - With an integrated display / up to -40...+200°C (-40…+392°F) / -1...40 barg (-14.5…580 psig) / FKM/FPM / Metaglas® for

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KROHNE OPTIWAVE 5200 C - for liquids in storage and process applications - OPTIWAVE Series (172)

OPTIWAVE 5200 C - Level Transmitter for liquids in storage and process applications - Part number VF5041B0TH0H1A1AB16000000 / Process fitting / Material - 2¨ 150 lb RF ⑧ / Electronics - 4–20 mA with HART / Display - With an integrated display / 50...+150°C (-58…+302°F) / -1...40 barg (-14.5…580 psig)

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KROHNE OPTIWAVE 5200 C - for liquids in storage and process applications - OPTIWAVE Series (173)

OPTIWAVE 5200 C - Level Transmitter for liquids in storage and process applications - Part number VF43410H8GP011B10060000 / Process fitting / Material - G 1½ A / Electronics - 4–20 mA with HART / Display - With an integrated display /

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KROHNE OPTIWAVE 7500 C - for liquids in narrow tanks with internal obstructions - OPTIWAVE Series - (174)

OPTIWAVE 7500 C- Level Transmitter for liquids in narrow tanks with internal obstructions - Part number VFDF40W500211480240MC7000/ Process fitting / Material - DN100 PN01 / Electronics - 4–20 mA with HART / Display - Plug-in display (cover with window)

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Technical Feature Krohne Radar Transmitters

Advantages   Disadvantages 
  • Non-contact measurement: Radar transmitters provide a non-contact method, which is beneficial for corrosive or abrasive materials.
  • High accuracy: They offer high accuracy and reliability, even in challenging conditions like foam, vapor, or turbulent surfaces.
  • Versatile installation: Non-contact FMCW radar can measure through closed tank roofs and some types of grids and sieves, which is ideal for applications where cutting into a tank is not possible or desirable.
  • Minimal disturbance: Some KROHNE models, particularly those using flush-mounted lens antennas, can be installed on small nozzles, allowing for a "dead zone" (area where measurement is not possible) as small as a few millimeters, enabling the tank to be filled almost to the antenna.
  • Maintenance-free: Some models, like the OPTIFLEX 7200, are maintenance-free, reducing long-term costs.
  
  • Cost: Installation and maintenance costs can be high due to the need for specialized expertise and potential long-term maintenance.
  • Substance limitations: Accuracy can be affected by the dielectric constant of the material. Substances with a low dielectric constant or a highly agitated surface can make measurement difficult.
  •  Guided wave radar probe limitations: For guided wave radar (GWR) with probe versions, there are risks of leaks at the installation point, and the tank may need to be emptied for maintenance or if the probe needs to be removed.
  • Antenna or probe build-up: With some models, material can adhere to the probe or antenna, requiring cleaning to ensure accurate readings. 

 

 

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