Krohne Radar level transmitters / OPTIFLEX 6200 C/F

VFAB401110211610310L1A006 - (level transmitter for solids from granulates to powders)

The OPTIFLEX 6200 uses Time Domain Reflectometry (TDR), a guided radar technology, to measure the level of solids by emitting low-intensity electromagnetic pulses down a probe. These pulses reflect off the surface of the material, and the device measures the travel time of the reflected pulse to calculate the distance to the material's surface. This method is suitable for various solids, including powders, granulates, and liquids, and is unaffected by dust, foam, vapor, or changes in pressure, temperature, or density.

How it Works

1. Pulse Emission: A low-intensity electromagnetic (EM) pulse is transmitted by the device's converter.
2. Pulse Propagation: The pulse travels along a rigid or flexible probe (single rod or cable) at the speed of light.
3. Reflection: When the pulse hits the material's surface, it is reflected back to the transmitter.
4. Time Measurement: The device measures the time interval from when the pulse is transmitted to when it is received.
5. Distance Calculation: Half of this elapsed time is converted into the distance from the device's reference point to the material's surface.
6. Signal Output: This distance value is then converted into a standard output signal, such as a 4...20 mA current or a digital signal.

Key Features & Benefits

• TDR Technology: This guided radar technology is reliable and accurate for level measurement.
• Robust Probes: The single rod or cable probes are strong and can withstand high traction loads, making them ideal for solids in silos.
• Versatile Applications: The OPTIFLEX 6200 is suitable for various materials, including powders like cement and starch, as well as solids like plastic granulates, tobacco, and coffee powder.
• Insensitive to Environmental Factors: Its performance is not affected by dust, foam, vapor, agitation, or changes in pressure, temperature, or density.

 Full Datasheet

Transmitter & Antenna Feature  

• Manufacturer :  Krohne - OPTIFLEX 6200
• Product No. :   VFAB401110211610310L1A006
• VFAB  - OPTIFLEX 6200 C/F Guided Radar (TDR) level transmitter for solids from granulates to powders up to 40 barg (580 psig) and +200°C (+392°F)
• Special number : 40  Special manufacture
• Regional directives or approvals: 1  - Europe
• Ex approval: 1 - ATEX II 1/2 G Ex ia IIC T6…T* Ga/Gb + II 1/2 D Ex ia IIIC T85°C…T*°C Da/Db 2
• Industry / safety: 1 - SIL2/3 – only available for the compact version (C)
• Construction : 0 - Without
• Converter version (Housing material / IP class): 2 - C / Compact version (aluminium housing - IP66/IP68)
• Outputs: 1 - 2-wire / 4...20 mA passive HART®
• Cable entry / cable gland: 1 - M20×1.5 / without
• Display / Housing orientation: 6 - Display / Horizontal side
• Display - Documentation language: 1 - English 
• Special number : 0  Special manufacture
• Process seal / gaskets: 3  --1...40 barg (-14.5…580 psig) / -50°C...+150°C (-58…+302°F) / Single PTFE process seal system seal with EPDM gasket
• Probe / Probe end / Material: 1 - Single rod Ø16 mm (0.63¨) / none / 316L - 1.4404 / 0.6...4 m (1.97. 13.12 ft)
• Special number : 0
• Process connection : Size / Pressure class / Sealing face: L1A - 3¨ 150 lb - RF (ASME B16.5 flanges ①O)
• Calibration certificate: 0 - Without (accuracy ±2 mm (0.08¨) up to 10 m (32.81 ft))
• Special number : 0
• Accessories / Tag plate: 6 - Weather protection + stainless steel tag plate (18 characters max.)

There are several Model of pressure transmitters, for more details read the PDF below 

Basic Ordering Information Transmitter