Microwave barrier
- In conformity with ATEX, IECEx, CSA and EAC

The FQR56/FDR56 microwave barrier is used for the non-contact and wear-free point level detection of all types of bulk solids, as well as for counting and checking piece goods. It can be installed on containers, conduits, shafts or on free fall shafts. It is possible to take a measurement through non-metallic container materials from the outside. By metallic containers it is recommended to use microwave-permeable windows made of glass, ceramic or PTFE.

The function of the microwave barrier is largely independent of the process conditions, such as the temperature and pressure in containers, aggressive or abrasive media, dust, mist, smoke and sediment deposits.

In addition to a switching output, the microwave barrier also has an analog 4-20 mA current output, using which deposits and filter contamination can be detected. Furthermore, the switching point can also be determined in the downstream system.

• Building materials industry: Cement, plaster, lime, expanded clay, wood chips etc.
• Chemical industry: Fertilizers, plastic powder and granules, silica etc.
• Food industry: Coffee, tea, tobacco, cereals, malt, animal feeds etc.
• Energy generation: Coal, carbon dust, coke etc.

• Robust and reliable at different process conditions
• High profitability as it is wear and maintenance free
• Easy installation and commissioning without special tools
• Flush mounting, contactless installation possible
• Electronics housing can be rotated by 360° after installation, allowing orientation into optimum position
• Compact design
• Indication of signal strength by 10 digits LED bargraph
• Selectable output signal: relay, solid-state-relay or current output 4-20 mA
• Integrated power supply and signal output, therefore no further switching amplifier required
• Many settings such as sensitivity, hysteresis, limit function, switching delay, attenuation
• Simulation mode allows the simulation of an output signal independent of the process to set, for example, a downstream PLC or data logger
• Easy mounting using R 1½, G 1½ or 1½ NPT thread, mounting bracket, installation flange, high-temperature adapter, high-pressure adapter and more
• Conforms to ATEX, IECEx, CSA and EAC