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MWF

Microwave level measurement

M   LLET

Füllstandtechnik

GmbH

MOLLET   D-74706 Osterburken  Tel.  +49  6291 6440-0  Fax  +49  6291 9846               Operating instruction

03/20

  ©

 by MOLLET

     MWF-BA-07     

07

Protruding nozzle diameter

 

[G]

  



100 mm

Installation in consideration of filling 

Protruding nozzle height 

[H]

  

200 mm

Installation with protruding nozzle

Choose the mounting position in such a way that the probe will not be 
touched by the filling stream. 

By use of thermally insulated vessels the nozzle should be also insulated 
in order to avoid condensation.

The protruding nozzle should be short and inside flush with the silo roof.

Installation in silos made of concrete

In case of installation in a concrete floor the process connection should 
be flush with the bottom edge of the floor.

Fixing of the wire rope probe could be necessary, when:

-  wire rope probe touches sometimes the silo wall, the cone, internal 
  installations or other metallic parts, 

Smaller diameters and heights >200 mm could restrict the measuring 
capability. 

-   wire rope probe gets closer than 500 mm to a concrete wall.

For fixing a threat M12 is provided at the bottom of the tensioning weight.

-  rope starts swinging due to vibrations,

The rope must be loose in order to avoid a heavy tensile load and with it 
the danger of a rope breakage and

Installation with fastened wire rope probe

In silos made of concrete a minimum distance 

[A]

 of 500 mm between 

the concrete wall and the probe should be kept. A distance of at least 
1000 mm is recommended.

either reliably grounded or reliably isolated.

17. Installation advices



200

 



200

 

002-1006

002-1008

002-1009

002-1007

Reliably grounded fixing

Reliably isolated fixing

Mounting 
brackets 
provided 
on site

M12

Plastic rope

Summary of Contents for MOLOSwave MWF2 Series

Page 1: ...measuring data 04 Maximum forces Mounting position 06 Installation advices 07 Connection plan Switching sequence Electrical connection Potential compensation 09 Installation advices Preparation of mounting Mounting 08 Troubleshooting Returns 10 Page M LLET Füllstandtechnik GmbH 03 20 by MOLLET MWF BA 01 01 MOLLET D 74706 Osterburken Tel 49 6291 6440 0 Fax 49 6291 9846 Operating instruction Operati...

Page 2: ...d are sealed 1 5 Consider the data of the name plate on the device 1 4 For the electrical connection take notice of the local and statutory rules and regulations and or the VDE 0100 Please read and obey these safety instructions and the complete operating manual Prior to the use of the device in potentially explosive atmospheres please read and obey the and observe the operating instruction Specia...

Page 3: ...sensor electronic the process connection with the feed through low lateral forces at the probe and liquids electronic through the feed through to the probe in the vessel with the filling good and returned The high frequency measuring signal will be transmitted by the sensor MOLLET D 74706 Osterburken Tel 49 6291 6440 0 Fax 49 6291 9846 Operating instruction 03 20 by MOLLET MWF BA 03 03 5 Applicati...

Page 4: ...e rope rod Measuring range analog M 4 mA lower current value uMG down 150 mm 10 mm Probe length L Reference point R to end of probe up 120 mm 120 mm 10 Technicalmeasuringdata max measuring range probe length 20 mA upper current value oMG Factory setting uMG 4 mA Top edge tensioning weight up to 3 0 m at 0 3 m of filling level 1 m s or max 0 03 of measured value or depending on customers request Me...

Page 5: ... Pressure in container p 1 bar 40 bar Bulk goods temperature Dielectric constant εr 1 8 below 1 8 on request Probe length Wire rope probe LS 1 0 m 20 0 m Rod probe LW 0 5 m 3 0 m SM2E G1 50 8 G2I 1 4301 SM3E G1 55 8 G3I 1 4301 Art No Thread For thread code SM1E G1 41 6 G1I 1 4301 G2I G1 50 Delivery including seals G3I G1 55 13 Process connection thread Thread code Thread G1I G1 46 14 Hexagonal nut...

Page 6: ... way that distance remains to plane metallic walls A 100 mm to concrete walls A 500 mm outside of plastic containers D 300 mm to metallic hoppers and bottoms E 150 mm Exception Probe will be fixed The probe must not touch metallic walls and bottoms By distances C D 300 mm a disturbance signal suppression has to be done see parameterisation manual Disturbance signal scan Mounting position should be...

Page 7: ...ottom edge of the floor Fixing of the wire rope probe could be necessary when wire rope probe touches sometimes the silo wall the cone internal installations or other metallic parts Smaller diameters and heights 200 mm could restrict the measuring capability wire rope probe gets closer than 500 mm to a concrete wall For fixing a threat M12 is provided at the bottom of the tensioning weight rope st...

Page 8: ...unted vertically into the silo or vessel 1 2 Screw the bush of the probe on the thread of the feed through MWF has to be mounted into empty silos or vessels in order to make sure that wire rope probe hang vertically and don t knot Use for handling and wearing of the MWF the hexagon or the lower section of the housing 18 Preparation of mounting In most cases the MWF is delivered completely preassem...

Page 9: ...urement device MWF can be recycled 26 Disposal Disposal of the MWF is subject to the environmental legislation of the respective country in effect for the operator s premises Check the terminal assignments for correctness and the cable glands for tightness Switch on the power supply Adaption of parameters only by changed process conditions and after consulting MOLLET recommended 24 Commissioning A...

Page 10: ...d make sure that the distance to them is sufficient Cornice near the probe Remove cornice near the probe Bridges in the silo Remove bridges in the silo and avoid bridge building Larger caking to the probe Remove larger caking and clean the probe Probe buckled Straighten the probe or renew it Probe released from the device Install probe or renew it Tensioning weight released from the rope Install t...

Page 11: ...e Dokumente TDR Sensor zur kontinuierlichen Füllstandmessung TDR sensor for continuous level measurement Typ Type MWF conforms with the following European directives D 74706 Osterburken Mikrowellen Füllstandanzeiger Microwave level indicator Qualitätssicherung Osterburken den 03 03 2020 Wolfgang Hageleit DIN EN IEC 60079 0 2019 DIN EN 60079 11 2012 DIN EN 60079 31 2014 Geschäftsführer managing dir...

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