Krohne Radar level transmitters / OPTIFLEX 8200 C/F

VFAC401110211610K10H1A006 - (level transmitter for liquids at high
temperature and pressure)

The OPTIFLEX 8200 works by using Time Domain Reflectometry (TDR) to emit low-intensity electromagnetic pulses along a probe, which are reflected by the product surface. By measuring the transit time of the pulses and using an algorithm called Dynamic Gas-phase Compensation (GDC), the device determines the liquid level or interface with high accuracy, even under extreme conditions like high pressure, temperature, and changing gas compositions.

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 8200
• Product No. :   VFAC401110211610K10H1A006
• VFAC  - OPTIFLEX 8200 C/F/S Guided Radar (TDR) level transmitter for liquids at high temperature and pressure up to 320 barg (4641 psig) and +315°C (+599°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 
• Enhanced functions: 0 - Without
• Process seal / gaskets: K   -1...320 barg (-14.5.....4641 psig) / -40°C...+200°C (-40…+392°F) / Single ceramic process seal system with FKM/FPM gasket
• Probe / Probe end / Material 1 - Single rod Ø8 mm (0.32¨) / none / 316L - 1.4404 / 0.6...4 m (1.97. 13.12 ft)
• Sensor extensions: 0 - without
• Process connection : Size / Pressure class / Sealing face: H1A - 2¨ 150 lb - RF
• Calibration certificate: 0 - Without (accuracy ±2 mm (0.08¨) up to 10 m (32.81 ft))
• Options: 0 - without 
• 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