Rake (Screen) Control [Mr 200]; Setting A Rake Control - Siemens MAG 1100 Operating Instructions Manual

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
One
Transducer[1]
P006[1]
P007[1]
h[1]
Rake
Point Three: Level Distance = h[1] –h[2]
Page 68 MultiRanger 100/200 – INSTRUCTION MANUAL
Transducer
Rake
Note: transducers may be mounted at variant heights.
Debris Conveyer
Water Level
Two
P007 (3)
Max differential
between Point 1 and
Point 2 reading also
sets 100% scale for
bargraph and mA
output.
Transducer[2]
P006[2]
h[2]
P007[2]
Flow
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