The AFGUARD® is a measurement system, which supervises the quality of Jet Fuels. The AFGUARD® is recommended for insitu measurement of particulate matter in Jet Fuel like free water. The AFGUARD® is a scattered light sensor and is designed to provide inline control solution for a variety of processes.

The aviation industry has used the gravimetric and apperance test methods from its very earliest beginnings. There is no doubt that the use of these methods coupled with very conservative limits and well specified procedures to achieve them, Have given the industry the very highets levels of confidence in supplying fuel that is fit-for-purpose. Due to the ever present possibility that these procedures may break down and developments in sensing technology, the indsutry has evealuting other cleanliness assessment methods. API and EI have also published API/EI 1598 which provides recommendations for the use of electronic sensors than can detect low levels of free water in aviation fuels. Electronic sensors will detct and measure continuously real time producing objective assesment of cleanliness.

The AFGUARD free water sensor reflects the next generation of aviation fuel monitoring and is an important contribution to aviation safety. Its' innovative sensor technology meets the advanced demands of today and tomorrow. Proper use will prolong the service life of 2" monitor elements to 3 years. This translates into less maintenance and down time for fuelling vehicles, and is a huge cost saver. Some of the innovative features are:

• Intrinsically safe
• Dual channel scattered light turbidity sensor
• Continuous monitoring of aviation fuel flow
• Detection/monitoring the performance of filter/water separators & monitors
• Reduction of faulty areas in aviation fuel filtration
  AFGUARD uses a light scattering/light blocking method
• Very low maintenance
• Long durability

The AFGUARD® is a measurement system, which supervises the quality of Jet Fuels. The AFGUARD® is recommended for insitu measurement of particulate matter in Jet Fuel like free water. The AFGUARD® is a scattered light sensor and is designed to provide inline control solution for a variety of processes. Functionality: A precisely defined, constant light beam penetrates the process medium. Scattered light from particles (un dissolved liquids like free water or gas bubbles) in the medium is detected by photo diodes. It is also possible to determine a water slug in Jet Fuel. The AFGUARD® can be used perfectly to detect the functionality of Filter Water Separators or to measure the water absorbing performance of Filter Monitors. This can be done by measuring the level of free water detected by AFGUARD® sensors, placed at the vessel inlet and outlet. Free water will be detected and, with AFGUARD® in place, the monitors are under constant surveillance to insure their proper function. Extended service life for FAUDI Aviation Elements could be a result – provided that the indicated differential pressure range is observed.

Technical data

- Measurement range 0 to 50 ppm or 0 to 100 ppm
- Accuracy +/- 3 ppm
- Linear analogue output signal 4 to 20 mA
- Contact Load DC 24 V DC
- Available variants intrinsically safe / safe area version
- Hazardous area approvals
- ATEX Ex II 1/2G Ex ib [ia] IIB T4
- ATEX Ex II 1/2G Ex ia IIB T4
- ATEX Ex II 3G Ex ic IIB T4
- Ingress protection IP 67
- Operating temperature -30 to + 60 °C
- Storage temperature -30 to + 70 °C
- Relative humidity 10 to 90 %
- Pressure range 10, 16 bar
- Wrench size AF 36
- Torque 50 Nm