Are you looking for reliable level measurement of powder, granulates and bulky solids, even in a dusty atmosphere?

With 20 years of experience in manufacturing FMCW radar level transmitters, and an antenna specifically designed to prevent deposit of dust, KROHNE offers the appropriate solution for solid measurement: OPTIWAVE 6300 C.

State-of-the-art instrument for solid applications

Contactless radar level measurement of powder granulates and bulk solids in buffer silos, hoppers, bulk storage containers and on conveyor belts. Ideal for a large number of industries, such as mineral and mining (cement, lime, calcium carbonate, coke), food (salt, sugar), chemicals (plastic granulates), pulp and paper (woodchips) and power (fly ash).

The 24…26 GHz FMCW radar sends a powerful wave signal into silos for clear vision even through severe dust conditions. The FMCW radar, due to its continuous wave generation, does not require expensive antenna aiming kits. Its innovative drop antenna made of plain PP or PTFE minimizes product build-up; making purging systems obsolete and the device maintenance free.

The OPTIWAVE 6300 C is the only contactless 2-wire 24…26 GHz FMCW level radar for solids applications. Even 4- or 5-wire instruments cannot compete: customers thereby avoid the cost for extra wiring.


All antennas can be retrofitted with extensions. For drop antennas in corrosive atmosphere, a flange protection made of PP or PTFE is also available. Purging systems are standard with horn antennas. Minimum process connection:  sizes from 1½NPT, G1½ and DN 80 upwards. The device is ATEX certified. FM/CSA approval is pending.


  • Minerals & Mining
  • Chemical
  • Food
  • Iron, Steel & Metals
  • Pulp & Paper


  • Storage
  • Silos
  • Hoppers

Top Stories:
OPTIWAVE 6300 C – FMCW radar level meter for solids
True Gold secures up to US$120m financing to fully fund Karma project construction
ANC plans Zimbabwe-style mining buyout in South Africa