The ORCA Sonar Bed Level System will measure up to two density interfaces simultaneously. Typically, these are bed levels / RAS blanket and floc / fluff layers. The sonar produces a high-power concentrated beam and provides critical plant control to optimize performance.

The ORCA Sonar Bed Level transducer emits a high-powered acoustic pulse, which is reflected from the interface density selected. The reflected signal is processed using specially developed software algorithms, that eliminate lighter floating densities and stratified layers, allowing measurement of RAS or BED levels. It can be calibrated to measure lighter densities like FLOC or one of the outputs could be used for a CLARITY output, similar to a basic turbidity transmitter measuring solids in suspension. By choosing the correct sonar transducer frequency, the ORCA sonar guarantees the optimized performance when measuring both light and heavy-density interfaces.

Applications

• Sewage Plant
• Tank or Vessel
• Mining
• Water and Wastewater

Features

• Dual independent analogue outputs to track two different interfaces, or clarity simultaneously, with the one sonar sensor.
• Easy calibration to track specific density interfaces, e.g.: floc / fluff layer – 1g/l, Bed 10g/l+
• Industrial scum cleaning mechanisms, that do not require maintenance.
• No wiper blade assemblies

Specifications

• Accuracy: +/- 0.25%
• Maximum Range: 24m (82ft)
• Remote Electronics: -40°C to 70°C (-40¼F to 158¼F)
• Sonar Transducer FRP Fibreglass: -40°C to 80°C. (-40¼F to 176¼F)
• Electronic Actuator: 0°C to 80°C (0¼F to 176¼F) (recommend cover / heating for subzero environments)
• Operating Temp: -40°C to 70°C (-40°F to 158°F)

The HAWK Sultan Sonar uses Advanced Sonar Technology to measure and control Wastewater Clarifiers and Thickeners. The system is easy to use, and the innovative design provides critical plant control to optimize performance. In the water, wastewater industry process conditions will vary greatly between a primary sedimentation tank, secondary/final clarifier, and a gravity thickener. Thickener bed levels, secondary RAS blanket, flocculent blanket, etc, all have different densities and the water above these interface levels are subject to different process conditions that change.

Principle of Operation

To optimize performance in each interface application under all process environments HAWK has developed a powerful low frequency transducer that penetrates through the suspended solids. It is capable of measuring the sludge bed level at the bottom of a clarifier or the lightest flocculent layer. Optimize performance under all process environments in each interface application. HAWK uses one transducer with a frequency and power level that is applicable to the density of the interface and process conditions expected in the tank. HAWK can guarantee performance for controlling pumps etc, rather than for monitoring purposes only.

Application

• Sewage Plant
• Channel or Flume

Features

• Improved efficiency and control of the treatment process
• Fully automated plant systems with reliable sludge blanket level monitoring
• Advanced warning of biological upset or hydraulic imbalance
• Reduced maintenance with 5 year cleaning mechanism warranty (no blades to replace)
• Reduced site operational costs significantly with improved process control for downstream operations
• Improved health and safety on site with compliance to OSHA regulations (no manual dips required).

Specifications

• Accuracy: +/- 0.25%
• Maximum Range: 15m (50ft)
• Operating Temp: Remote Electronics -40°C (-40°F) to 80°C (176°F)
• Sonar Transducer: -40°C (-40°F) to 50°C (122°F)
• Communications: GosHawk, Modbus, HART, Profibus DP, DeviceNet, Foundation Fieldbus, Profibus PA.