MLSS Analyzers SS400G+SS300G

تماس بگیرید




  • Wide output ranges, 0-1000 mg/l to 0-20000 mg/l.
  • Output in different two ranges.
  • Abundant contact outputs.
  • Enhanced self-diagnosis functions including failure in light source.


  • Easy-to-maintain, lightweight, compact probe-like sensor.
  • Virtually no need for replacing light source and photodetector unit.
  • Pulse-driven light emission, eliminating effects of disturbing light.
  • Arrangement of optical system highly immune to effects of light reflecting from boundary surface.
  • Choice of jet cleaning unit.
  • Choice of various type of holders according to application needs.



Measuring objectConcentration of mixed liquor suspended solids (MLSS) in an aeration tank in a sewage or industrial wastewater treatment plant
Measuring methodTransmitted/scattered light comparison method
Measuring range۵۰۰ to 20000 mg/l
Output signalTwo outputs, 4 to 20 mA DC; maximum load resistance: 600 Ω
Output rangeMinimum 0 to 1000 mg/l
Maximum 0 to 20000 mg/l
Contact outputFour outputs
Contact inputVoltage-free contact for remote range selection and start of cleaning
Ambient temperature-۱۰ to 55℃
Relative humidity۱۰ to 90% RH (non-condensing)
ConstructionComplies with JIS C0920 watertight, IEC IP65 and NEMA 4X standards
Supply voltage۱۰۰ to 240 V AC, 50/60 Hz, 24 V DC
Power consumption۲۲ VA maximum (AC power)
۵ W maximum (DC power)
WeightApprox. 2.5 kg


ShapeProbe-like Sensor
Measuring objectConcentration of mixed liquid suspended solid (MLSS) in an aeration tank in a sewage or industrial wastewater treatment plant
Measuring principleScattered/transmitted light comparison method
Measuring range۵۰۰ to 20000 mg/l
Temperature of measured object۰ to 50℃
Pressure of measured object۰ to 200 kPa
Flow velocity۱ m/sec maximum
Cable length۳, ۵, ۱۰, ۱۵ or 20 m
Material of wetted part or junctionBody; Stainless steel (304SS or equivalent)
Window; glass
O-ring; nitrile rubber
Cable; PVC
WeightApprox. 0.5 kg plus N x 0.12 kg, where N is cable length
Cleaning unit (optional)Jet cleaning
Note: No cleaning unit can be used if the sensor is equipped with a floating ball holder.
Material of wiper cleaning unitNitrile rubber and 304SS (wetted part)
Material of jet cleaning unitPolypropylene, polyethylene and 304SS (wetted part)
Ambient temperature-۱۰ to 50℃
ConstructionComplies with JIS rainproof standard
















Linearity±۴٫۵ % F.S. (by stable kaolin)
Repeatability۲ % F.S. (by stable kaolin)
StabilityZero: ±۲ % F.S./day (by city water)
Span: ±۲ % F.S./day (by calibration kit)



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