Krohne Radar level transmitters / OPTIFLEX 7200 C SFA901100312410MN0HH1000

Krohne Radar level transmitters / OPTIFLEX 7200 C

 SFA901100312410MN0HH1000 - (level transmitter for liquids in storage and process applications)

The OPTIFLEX 7200 works using Time Domain Reflectometry (TDR) (guided radar) technology, which sends low-intensity electromagnetic pulses down a probe and measures the time it takes for them to reflect off the liquid's surface. The measured time is converted into a continuous level measurement, providing accurate readings for various liquids in demanding industrial applications like the chemical and oil & gas industries, even with conditions such as steam, foam, or changing pressures.

How it Works

1. Pulse Emission: A low-intensity electromagnetic pulse is sent along the device's rigid or flexible probe.
   Reflection: When the pulse reaches the surface of the liquid, it is reflected back towards the device. The intensity of the reflection depends on the liquid's dielectric constant.
2. Time Measurement: The device precisely measures the time between the transmission of the pulse and its return.
3. Distance Calculation: Since the pulse travels at the speed of light, half of this measured time is equivalent to the distance from the probe's reference point (the flange) to the liquid surface.
4. Signal Conversion: This time value is then converted into a 4-20 mA current output or other digital signals for the control system.

Key Features and Benefits

• TDR Technology: Utilizes guided radar for accurate and reliable measurement.
• Wide Application: Suitable for liquids with diverse dielectric properties, including hydrocarbons, acids, and cooling water.
• Harsh Environment Capabilities: Handles difficult conditions like steam, foam, agitated surfaces, and changing pressure/temperature.
• Dynamic Gas-phase Compensation (DGC): Features patented technology for accurate measurements even when the gas composition above the liquid changes rapidly.
• Versatile Probe Options: Offers a wide choice of probe types and materials to suit various process requirements and corrosive media.
• Hazardous Area Approvals: Designed with approvals for use in potentially explosive environments.

 Full Datasheet

Transmitter & Antenna Feature  

• Manufacturer :  Krohne - OPTIFLEX 7200
• Product No. :   SFAA901100312410MN0HH1000
• SFAA  - OPTIFLEX 7200 C/F/S/D TDR Guided Radar l(TDR) level transmitter for liquids in storage and process
  applications up to 100 barg (1450 psig) and +250°C (+482°F)
• Special number : 90  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: 0 - Without
• Construction: 0  - Without
• Converter version (Housing material / IP class): 3 - SC / Compact version (stainless steel housing - IP66/IP68)
• Outputs: 1 - 2-wire / 4...20 mA passive HART®
• Cable entry / cable gland: 2 - M20×1.5 / 1 × plastic + plug Ⓐ
• Display / Housing orientation: 4 - Display / Vertical top
• Display - Documentation language: 1 - English ①O
• Enhanced functions: 0 - Without
• Process seal / gaskets: M - 1...100 barg (-14.5…1450 psig) / -50°C...+150°C (-58…+302°F) / Single ceramic process seal system with EPDM gasket
• Probe / Probe end / Material: N - Coaxial Ø22 mm (0.87¨) / none / HASTELLOY® C-22® / 0.3...6 m (0.98…19.69 ft)
• Sensor extensions ("S" and "D" converter versions only): 0 - Without
• Process connection : Size / Pressure class / Sealing face: HH1 - DN50 PN63 - Type B1 ①2 (EN 1092-1 flanges ①4)
• Calibration certificate: 0 - Without (accuracy ±2 mm (0.08¨) up to 10 m (32.81 ft))
• Options: 0 - Without
• Accessories / Tag plate: 0 - Without

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

Basic Ordering Information Transmitter