MOLOSbob LF20 Continuous level measurement with Yo-Yo sensing system

The MOLOSbob LF20 enables simple level measurement in silos and bunkers up to 42 m. With the help of different sensing weights, the Yo-Yo system provides reliable measurement results regardless of the bulk solids properties and therefore without complex parameterization. The measured value is output as a 4-20 mA signal and visualized via display instruments.

Product features that will convince you too

Level measurement up to a silo height of 42 m

Unaffected by bulk material properties such as dust, conductivity

Measurement in silos with process temperatures up to +150 °C possible

Silo and container installations have no influence on the measurement

High measuring accuracy of the current fill level (±2.5 cm)

Menu-guided commissioning and operation with plain text display

Use in dust explosion-hazardous areas possible, category 1/2D

4-20 mA signal output and a maximum of 4 freely programmable relay outputs

Housing with IP67/IP66 protection class according to EN 60529

Compact yet robust device design with low weight

Measuring tape wiper prevent contamination of the housing interior

No draining into the silo outlet due to safety circuit

MOLOSbob LF20 All the facts at a glance

Housing / Lid
Aluminum coated RAL 7001 / pure
Tape run-off speed
0,16 … 0,25 m/s
Traction power
maximum 150 N
Angle of inclination
maximum 2°
Power supply
90 … 253 V AC, 50/60 Hz
20 … 28 V DC
Weight
11,5 kg including sensing weight
Dimensions
300 x 260 x 225 [HxBxD]
Process connection
Flange DN100 PN16 / 4" Aluminium
Wiper
Aluminum / steel or Stainless Steel (304)
Measurement tape
Stainless Steel (301, modified)
Measurement range
0 m … 42 m
Power consumption
max. 150 VA w/o heater
max. 170 VA with heater
(optional)
Ambient temperature
-40 °C … +60 °C
Process temperature
-20 °C … +150 °C
Pressure in the container
-0,5 … +1,0 bar
Explosion approvals
ATEX Dust II 1/2D IIIC
Terminals
maximum 2,5 mm²
Inputs
Input voltage 30 VDC
(active)
Contact load maximum 0,3 W
(passive)
Outputs
Current output 4 … 20 mA
(active)
Relay outputs maximum 250 VAC / 6A
Optocoupler output max. 30 VDC / 10 mA
(optional)
Type of protection
IP67 according EN 60529

MOLOSbob - reliable level measurement with solder system up to 42 m

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