Level indication with MAFA Linradar
MAFA linradar is suitable for bulk or free-flowing materials like pellet fuel, powder, granulate and feed. MAFA Linradar works as the TDR (Time Domain Reflectometry)-principle, well known from measuring cable interruptions.
Micro pulses are sent through a wire with the velocity of light. When the pulse reaches the material surface, it is reflected back to the level transmitter. The distance to the material is directly proportional to the pulse time. The TDR technique is independent of the material and the space above. The signal is converted to a 4-20 mA current and a HART-signal for further processing.
Specifications:
Two-wire TDR level transmitter. Probe in stainless steel.
Range: max. 24 m.
Output: 4…20 mA with HART
Accuracy for powder- and bulk material: ± 20 mm length 15 m)
Power supply: 18…35 V DC
Ingress protection (std): IP65 / NEMA 4, FPM
EX approval: ATEX x II 1/2 D T 100°C
For factory assembled silos the Linradar is preinstalled on the silo complete with electric cables, termination box circa 2 m up on the supporting leg.
Linradar is also easy to install on an existing silo.