WIKA FLR - Manual (Page 4)

GB
4 WIKA operating instructions level sensors model RMG
13442163.01 06/2010 GB/D/F
1. Functional description
The level transmitter model RMG is used for remote measuring of the
level of liquid media.
It operates according to the float principle with magnetic transmission
in three-wire potentiometer circuit. A reed measuring network (reed
contacts + resistors) built into the slip pipe (5) is actuated by a perma-
nent magnet built into the float (6). This provides a proportional resis-
tance signal for evaluation. Evaluation may take place for example with a
series-connected resistance transmitter.
2. Area of application
Level transmitters serve exclusively for monitoring the level of liquid
media. All materials which come into contact with the media must be
suitably resistant. The medium to be monitored may not be heavily
contaminated. It may not have a tendency to crystallize.
The level transmitters must be operated on safety barriers or an intrinsi-
cally safe control circuit for use in „e“ areas of zone 1 or 2.
3. Assembly
Install WIKA level transmitters according to their model (flange or thread
(3)). Fit a suitable gasket (4) for sealing. Make sure they are installed in
the right position.
1. Functional description ... 3. Assembly