Mollet DF11W1 MOLOSroto level limit switch

MOLOSroto level limit switch

Füllstandtechnik
GmbH
M LLET
Rotary blade level indicator Level limit switch for bulk goods
DF11
By use in explosive hazardous read and follow the instructions.
Read and follow these safety instructions first andareas take notice of the
operating
Safety instructions
special conditions and instructions for safe application
1.
The installation, initial operation and maintenance may be done by a qualified expert with electrical know-how only.
2.
The connection of the single components as like as measuring blade, anti-buckling protection, shaft extention are
permissible only with the attached pins.
of the attached
3.
For the electrical connection take notice of the local and statutory rules and regulations and/or the VDE 0100.
4.
Before electrical connection compare the supply voltage with the details at the data plate.
5.
A fuse (with max. 4A) has to be connected in series to the voltage supply.
6.
Protect the signal contacts from voltage peaks when inductive loads are connected.
7.
The device may put into operation if it is closed, only.
8.
Switch off the power supply, before opening the device. (touchdangerous voltage)
explosive protection information
first and take notice of the operating instructions.
The assemblage of the seperate parts, e.g. measuring blade, anti bucking protection, shaft extension and
pendulum shaft is permitted only with the attached pins.
Operating instructions 1.
Description
1.3 Function
1.1 Intended use The electromechanical level limit switch is monitoring the filling level of bulk goods in silos, bunkers,
containers, hoppers, weighers, etc.
1.2 Construction control head (housing with motor and switch)
The rotating measuring blade, projecting into the silo or container, is driven by a gearmotor.
If the bulk material is reaching the measuring blade, the rotation will be hindered and it will be stopped.
The return torque turns the pivoted motor from its end position and actuates the signal switch.
A second switch turns the motor off.
If the filling level of the bulk material sinks, the blade becomes freely again and a spring will turn the motor
back into its original end position.
Thereby the motor will be turned on again and the signal switch will be switched back.
1.4 Technical data cable gland
Manufacturer Address Name
process connection
jib
blade shaft
Type Bulk goods temperature Ambient temperature Pressure range Measuring blade speed
Response delay Maintenance
MOLLET Füllstandtechnik GmbH Industriepark RIO 103 74706 Osterburken rotary blade level
indicator DF Ts -25 °C ... +80 °C Ta -20 °C ... +70 °C p -0,5 bar ... +1 bar
1 U/min approx. 1.20 sec.
none
1.5 Materials measuring blade 001-0700
MOLLET D-74706 Osterburken Tel. +49 6291 6440-0 Fax +49 6291 9846
Housing Process connection Blade shaft Measuring blade Measuring blade TK
Operating instruction
aluminium aluminium stainless steel 1.4301 stainless steel 1.4301 plastics
08/10 08/10© by©MOLLET by MOLLET
DF11-BA DF11-BAD
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