Mollet DF21 MOLOSroto level limit switch

MOLOSroto level limit switch

Rotary blade level indicator
Füllstandtechnik
GmbH
M LLET
DF21
Level limit switch for bulk goods
Operating instructions 1.
Description 1.4 Technical data
1.1 Intended use The electromechanical level limit switch is monitoring the filling level of bulk goods in silos, bunkers,
containers, hoppers, weighers, etc..
Manufacturer Address
1.2 Construction Name control head (housing with motor and switch)
cable gland
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 see data plate Ta -20 °C ... +70 °C p see data plate 1 U/min
approx. 1.20 sec.
none
1.5 Electrical data process connection
jib
blade shaft
measuring blade 001-0706
1.3 Function 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.
MOLLET D-74706 Osterburken Tel. +49 6291 6440-0 Fax +49 6291 9846
Supply voltage Power consumption
see data plate
ply AC 4 VA Sup
DC 4 W cable gland M20 x 1.5
IP IP 66 acc. to DIN 60529 max. 1.5 mm² change-over contact tact potentialfree
n o C Switching voltage 4 V DC ... 250 V AC Capacity of the contact 1mA ... 2A
Cable entry Type of protection Connection clamps Signal contact
The signal contact is a multivoltage and multicurrent switch. It is suitable for use in circuits with low currents
and low voltages as well as for medium currents with control voltages up to 250 V ~AC.
Caution!
During the whole working life, the switch may be used in the same kind of circuit types, only.
When the switch has been used once with medium switching capacity, it cannot be used any more for the
low switching capacity.
1.6 Materials aluminium or stainless steel 1.4401 aluminium Process connection
or stainless steel 1.4301 stainless steel 1.4301 Blade shaft stainless steel 1.4301
Blade shaft stainless steel 1.4301 Measuring blade Sealing ring (order code) R0 NBR, black
R1 Viton/Teflon/VA R2 NBR, white, FDA conform R5 Teflon Housing
Operating instruction
08/10
© by MOLLET
DF21-BA
03