Pulsar Sludge Finder 2 Blanket Level Detector

Sludge Level Sensor Finder 2 provides reliable and continuous sludge blanket level measurement. The two-part system has been purposely designed for sludge blanket level measurement, operating ultrasonically through a liquid.

Sludge Level Sensor General Information

The Sludge Finder 2 uses proven echo processing algorithms to identify the sludge interface level using state of the art technology only found in this unit!

Sludge blanket level control is a crucial aspect of any process that includes primary settlement tanks, secondary settlement tanks, tertiary settlement tanks either with stationary or traveling bridges, clarifiers, gravity thickeners, or sequencing batch reactor systems. Sludge blanket level measurement works by measuring the distance between the sludge blanket surface and the water level. Once the sludge has reached the required density, the accompanying controller will then switch on the pumps and pump the sludge through into digesters, ready for the next treatment stage.

Read More : Pulsar Continuous Level and Volume Measurement

Effective sludge blanket level measurement can help treatment plants or industrial processes to generate their own electricity, ensure that pumps are being used efficiently, ensure that excess sludge is not being pumped into our local water sources, aids with compliance to health, safety, and environmental regulations, and finally, ensures that further sludge handling processes such as thickeners and dewatering equipment are all performing to their maximum with the correct concentration of sludge.

Sludge Level Sensor Pulsar Finder 2 Features

Self-Cleaning Viper Sludge Sensor

The Viper sludge transducer can be positioned up to 200m (656ft) from the controller and has a measurement range of 0.3m to 10 metres (0.98 – 32.8ft) – accuracy is 0.25% of the measured range. A tight 6° beam angle makes confined or cluttered applications easy and the self-cleaning face removes the need for regular inspection and maintenance – meaning you can avoid that unhygienic and hazardous task you hate!

Easy Set-up

The Sludge Finder 2 controller is easy to install by following the on-screen menu driven set-up – simply follow the screen prompts to enter your application parameters and then the system automatically tracks the sludge blanket interface.

Flexible – User Specific

Sludge Finder 2 offers a wealth of different options depending on requirements for your application.

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Sludge Level Sensor Pulsar Finder 2 Specifications


Dimensions: 235 x 184 x 120mm (9.25 x 7.24 x 4.72in) Wall mount only
Weight: Nominal 1kg (2.2lbs)
Enclosure material/description: Polycarbonate, flame resistant to UL94-5V
Cable entry detail: 10 cable entry knock outs, 5 x M20 and 1 x M16 underside. 4 x PG11 at rear
Transducer cable extensions: 2 twisted pair 0.5mm2 with overall screen
Maximum separation: 200m (656ft)


Enclosure protection: IP65 / NEMA 4X
Max. and min. temperature (electronics): -20°C to +50°C (-4°F to +122°F)


CE approvals: 2014/30/EU & 2014/35/EU – EMC Directive. Standards applied: EN 61010-1:2010 / EN 61326- 1:2013 / EN 55011 / EN 61000 (3-2 / 3-3 / 4-2 / 4-3 / 4-4 / 4-5 / 4-6 / 4-7 / 4-11
ATEX approval: Controller must be within a safe area


Analogue outputs: 2 off isolated (to 150V floating) output of 4-20mA or 0-20mA into 1kΩ (user programmable and adjustable) 0.1% resolution
Digital output: Half duplex RS232
Volt-free contacts, number & rating: 6 form “C” (SPDT) rated at 5A at 115V ac
Display: 192 x 128 pixel illuminated graphical display showing a variety of screens including echo profile. Fully programmable display options, integral keypad with menu navigation keys.
Radio modem (optional): 4-20mA using wireless exempt frequencies. Maximum range 500m (1640ft) line-of-sight
Communication bus (optional): RS485 Modbus RTU/ASCII or Profibus DPV0 or DPV1 (slave device)


On-board programming: By integral keypad.
PC programming: Via RS232
Programming security: Via passcode (user selectable and adjustable)
Programmed data integrity: Via non-volatile memory
PC software: Sludge Finder PC within PC Software Suite – compatible with XP (service pack 3), Windows 7/8/10


Operating voltage: Universal 100-240V ac 50-60Hz, 22-28Vdc.
Power consumption: 20W maximum power (typically 11W)
Fuse: 2A slow blow

Download Datasheet: Sludge Finder 2 Pulsar Sludge Blanket Level Detector

Reference : pulsarmeasurement.com

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