A Product by Pulsar Process Measurement

Pulsar's Sludge Finder 2 is a versatile and reliable solution to measuring interface levels in primary or secondary settlement tanks and Sequencing Batch Reactor (SBR) systems. A self-cleaning transducer removes the need for regular inspection.


  • 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 a drop-down menu on a large clear display
  • Unit can track two different echoes with one transducer and output two 4-20mA signals one for each interface
  • Optional Radio Telemetry System may be fitted with a 3km (1.86miles) line-of-sight range. Up to 48 Nodes can be used using a 'Multihop' receiver installation.
Wall Mount:
External Dimensions: 235 x 184 x 120mm (9.25 x 7.24 x 4.72in)
Weight Nominal: 1kg (3.3lbs)
Enclosure material/description: Polycarbonate, flame resistant to UL94-5V
Cable entry detail: 10 cable entry knockouts, 5 x M20 and 1 x M16 underside, 4 x PG11 at rear
Transducer cable extensions: 2 x twin pair with overall screen
Maximum separation: 200m (656ft) from transducer to transceiver
IP Rating (Wall): IP65
Max. and min. temp. (electronics): -25ºC to +55ºC (-13ºF to +131ºF)
Accuracy: 0.25% of the measured range or 10mm (0.39in) (which ever is greater)
Resolution: 0.25% of the measured range or 10mm (0.39in) (which ever is greater)
Max.range: 10m (33ft)
Min. range: 0.3m (0.98ft)
Viper material: Body in black Valox 357 with a 316 wiper blade and shaft
Analogue output: 2 off Isolated output (to 150V) of 4-20 mA or 0-20 mA into 1kΩ. (user programmable and adjustable) 0.1% resolution
Serial output: Half Duplex RS232
Volt-free contacts: 6 form "C" (SPDT) rated at 5A at 110V AC
Display: 192 x 128 pixel illuminated graphical display. Fully programmable display options. Integral keypad with menu navigation keys
Maximum range:3km (1.86miles) line of site
Communication bus (optional): RS485 Modbus RTU/ASCII or Profibus DP V0 or V1
On-board programming: By integral keypad
PC programming: Via RS232 RJ11 port
Programming security: Via passcode (user selectable and adjustable)
Programmed data integrity: Non-volatile memory
Power supply: Universal 100-220VAC 50/60Hz DC 22-28V 14W maximum power (typically 11W) Fuse 2A slow blow