Siemens MAG 1100, Operating Instructions Manual, Page: 242 / 665

Page 68 MultiRanger 100/200 – INSTRUCTION MANUAL 7ML19981FB05
Rak
e
(S
cr
een)
Cont
ro
l
MR
20
0
Rake (Screen) Control [MR 200]
This feature is only available on the MultiRanger 200.
Screens or rakes are mounted on the inflow channel of the wastewater treatment plant
to prevent debris from clogging the equipment.
When material builds up on the screen, a level differential is created, and the water level
is higher in front of the screen than behind it. When this differential reaches the
programmed setpoint, the MultiRanger activates a relay to operate mechanical rakes that
clean the screen and ensure a steady flow.
Setting a Rake Control
Transducer
Two
Transducer
One
Rake
P007 (3)
Max differential
between Point 1 and
Point 2 reading also
sets 100% scale for
bargraph and mA
output.
Transducer[1]
P006[1]
h[1]
Rake
Debris Conveyer
Transducer[2]
P006[2]
P007[2]
Water Level
h[2]
P007[1]
Flow
Point Three: Level Distance = h[1] –h[2]
Note: transducers may be mounted at variant heights.