SludgeWatch Ultra

Continuous Sludge Blanket Level Monitoring

The SludgeWatch Ultra utilises the industry accepted look down ultrasonic or 'sonar' method of detecting and tracking the interface between sludge and water in water, wastewater and industrial effluent settlement tanks and clarifiers. The easy to use system has been specifically designed for these applications and makes use of an easy drop down menu structure to allow hassle free site configuration. The self-cleaning transducer can monitor the interface in applications where the sludge has a density of 0.5% or more. The cleaning wiper operates automatically to remove dirt and air bubbles that can interfere with the measurement.

By monitoring the position of the sludge/water interface the user can make process adjustments to ensure that their plant is operating at the optimum efficiency whilst ensuring that water quality is preserved. If a blanket is allowed to rise too high in the tank there is a danger of carry-over to the effluent channel or the next processing stage, additionally strain may be placed on the scrapper mechanism. If there is too little sludge in the tank the settling process cannot work effectively, this leads to problems with sludge processing, returned sludge concentrations and again carry-over to the effluent channel. Automated sludge blanket detection removes the need for time consuming manual checks, ensuring reliable process control everyday and during unexpected weather or load conditions.

Applications

  • Final Settlement Tanks
  • Clarifiers
  • Primary Settlment Tanks

Features

  • Self Cleaning Sensor
  • Low Cost of Ownership
  • Continuous Output

Technical Specification

Physical

Dimensions (HxWxD)Monitor: 235 x 184 x 120 mm
Transducer: 78 mm Diameter, 185 mm long
WeightMonitor: 1.5 kg
Transducer: 1.0 kg (inc 10 metres of cable)
Enclosure RatingElectronics IP65, Sensor IP68
Enclosure MaterialMonitor: Polycarbonate
Sensor: Black Valox
Cable Entries5 x M20, 1x M16
Cable Size5 mm OD
Cable Length10 metres standard, 200 metres maximum

Environmental Data

Operating Temperature Monitor -20 to 50ºC, Sensor 0-60ºC
Storage Temperature -20 to 50ºC
Location Field

Electrical

Power Supply100 to 240 VAC 50/60 Hz
22 to 28 VDC
Power Rating20W maxmimum, 11W typcial

Measurement Principle

PrincipleUltrasonic

Measurement Characteristics

Accuracy+/- 0.25% or measured range or 30 mm whichever is the greater
Resolution+/- 0.25% or measured range or 10 mm whichever is the greater
Response Time0.5 seconds, damping configurable in monitor
Maximum Range10 metres
Minimum Range0.3 metres

User Interface

Display192 x 128 pixek illuminated graphical display
Setupvia membrane keypad
Units of Measurementmetres
PC Programmingvia RS232 RJ11 port
Information to Download
Measurement Links