Operating instructions
1. Description
1.1 Intended use
The level indicator observes the filling level as a limit switch in silos
and vessels. It can be used as full, demand and empty indicator for
dusty and powdery, granulated and grainy bulk goods with a max.
grain size up to 30 mm and with a bulk density of 0.3 t/m³ ... 1.0 t/m³.
1.2 Function
The bulk goods presses with its weight against the membrane.
A tappet directly transfers the pressure from the membrane to the
micro switch. When the bulk goods are decreasing, pressure is taken
off the membrane and the switch will be interconnected.
1.3 Dimensions
M LLET
Füllstandtechnik
GmbH
Hole- in the vessel max. 80mm
Ø
04/13
MFA-BA
©
by MOLLET
01
Safety instructions
1.
The installation,
2.
Comply with the local and statutory rules and regulations and/or the VDE 0100.
3.
Take notice of the temperature specifications at the data plate.
4.
A fuse (with max. 4A) has to be connected in series to the voltage supply.
5.
Protect the signal contact from voltage peaks when inductive loads are connected.
6.
The device may put into operation if it is closed, only.
7.
Switch off the power supply, before opening the device. (touchdangerous voltage)
initial operation and maintenance may be done by a qualified expert with electrical know-how only.
Read and follow these safety instructions first and take notice of the operating instructions.
MOLLET D-74706 Osterburken Tel. +49 6291 6440-0 Fax +49 6291 9846 Operating instructions
002-0200
*
1.4 Tchnical data
Manufacturer
Füllstandtechnik GmbH
Adress
Industriepark RIO 103
74706 Osterburken
Name
Membrane level indicator
Type
MFA
Temperature range
-10 °C ... +60 °C
Signal contact
change-over contact, potentialfree
Capacity of the contact
2 A / 250 V AC
Switching voltage
24 V ... 250 V AC
or
12 V ... 65 V DC
Response delay
none
Sensitivity
20 g … 60 g adjustable
Cable connection
Flat connection 4.8x0.8
Cable entry
Cable gland M12x1.5
Type of protection
IP44
acc. to DIN EN 60529
Overpressure safety
up to 0.5 bar
Weight
200 g
Maintenance
none
Mounting position
any position
1.5 Materials
Housing
ABS
Membrane
Nitrile caoutchouk
MOLLET
5.2
*
LK 90
103
50
6
M12x1.5
Ø 83
T
a
Contact
IP
Membrane level indicator
MFA
