Interface Level Transmitter – SludgeWizard Pro


The SLUDGEWIZARD PRO’s unique sonar transducer is immersed in the liquid, emitting a high powered acoustic pulse which is reflected from the interface density selected. The pulse reflects from the interface of the denser material back to the transducer face. The reflected signal is processed using the echo processing algorithms to identify the sludge interface level by a specially developed digital echo processing techniques found to this unit. This echo is analyzed by the controller unit providing a depth reading and an analog output proportional to the height of the interface
above the tank bottom.


  • Continuous single or dual channel level control choice
  • Self-cleaning transducer removes need for regular inspection
  • SBR tank applications can be monitored
  • Easy set up, via drop down menu on large clear display
  • Reliable monitoring down to 0.5% density
  • Two independent transducer channels with the option of combining Sludge Interface Transducers and/or Ultrasonic Level Transducers
  • ‘Hot Key’ Functions with easy menu driven programming
  • Reduces maintenance costs.
  • Easy installation and set-up.
  • Fully automated system with reliable interface/blanket level monitoring.
  • The self-cleaning system function prevents incorrect values caused by transducer clogging.
  • Ability to actuate pumps automatically with the alarm or pump control function.


  • Sumps, Lagoons, Settling Ponds
  • Primary and Secondary Settling Tanks
  • Clarifiers
  • Stationary and Travelling Bridge Applications
  • Gravity Thickeners
  • Reactor Clarifiers
  • DAF Thickeners
  • Sequencing Batch Reactor Tanks
  • Industrial Process Thickeners

sludgepro_app1 sludgepro_app2 sludgepro_app3


Technical Details
Accuracy ±0.25% of measured range or 30 mm (whichever is greater)
Resolution ±0.25% of measured range or 10 mm (whichever is greater)
Operating Temperature -20 °C to 50 °C
Display 192 x 128 Pixel Illuminated Multi-functional Backlit Graphical Display
Robust user Interface Keypad
Outputs Analog Output - 2 x (4-20mA or 0-20 mA) Isolated Output @ 0.1% resolution
Relay Output - 6 form “C” x SPDT rated @ 5A @ 240 Vac
Fully programmable and adjustable diagnostics
Serial Output – Half Duplex RS232
Communications RS485, Modbus RTU/ASCII, Profibus DP V0 or V1
Maximum Range 500 m line of site
Housing Material Polycarbonate
Enclosure Protection IP65
Weight 1 kg. (2.2 lbs.)
Power Supply UNIVERSAL (100 - 240Vac 50/60 Hz) ; 22 – 28 Vdc
Cable Entry 10 cable entry knock outs - 5 x M20 and 1 x M16 underside, 4 x PG11 at rear
Measurement Range 0.30 – 10 m maximum
Operating Frequency 700 KHz transducer
Operating Temperature -20 °C to 70 °C
Housing Material Black Valox 357
Wiper Material Stainless Steel 316 blade and shaft
(Consult FLOTECH for availability of other material)
Enclosure Protection IP68
Process Connection 1” BSP Thread
Cable 2 twisted pair 0.5 mm2 with overall screen
Approvals 2004/108/EC EMC approval; 2006/95/EC low voltage directive
Other Information
Transducer/Transmitter Separation 200 m
Recommended Insertion Length 200 mm
Optional Use flex-arm assembly when a surface skimmer is present
On-board programming By integral keypad
PC programming Via RS232 RJ11 port
Programming security Via password (user selectable and adjustable)
Programmed data integrity Non-volatile memory
Note: Specifications are subject to change without prior notice.

More Products / Systems