Basic Water Quality Analyzer
Sludge Density Analyzer

SMR12 series

Suspended Solids Density Analyzer

Suspended Solids Density Analyzer is connected directly via RS485 communication interface, providing simple, reliable, cost- saving process data with remote monitoring, calibration, configuration and diagnostics capabilities. Sludge Density Meter housing in a robust IP68 proof enclosure, 1500 N tensile strength Kevlar reinforced cable, up to 1.2 km digital data transmission, the Sludge Density Analyzer, is ideally used in water/wastewater industry.
  • Robust IP68 Water Submersible Enclosure, Solution Without Cabinet
  • On-line Realtime Measurement
  • Ultra Low Power Consumption, Ideal for Outdoor Applications
  • High Reliability, Drift Free
  • Surge Protection for Power and RS485 Communication
  • 1.2 Km RS485 Digital Communication, Minimize Cabling and Engineering Cost
  • Software Configuration Calibration and Data Monitoring
  • Standard Modbus RTU Protocol, Direct Connected with PLC, HMI, Eliminate I/O Module Cost
  • Innovative Nano Coating to Remain Window Clean
  • Optional Auto Cleaning Wiper, Almost No Maintenance
  • Onboard memory allowing users to easily calibrate and configure sensor at lab and distribute to various fields sites
SMR12 Total Suspended Solids (TSS) Analyzer  
Type SMR12-2: 0~50,000 mg/L
SMR12-3: 0~500,000 mg/L (depending on the medium)
Measurement range ±3% of reading (0~5,000 mg/L)
±5% of reading (5,000~500,000 mg/L)
Resolution 0.001 mg/L
Repeatability ±1%FS
Light source LED 880 nm
Process flow rate Max. 3 m/s
Operating pressure Max. 10 Kgf/cm2
Operating temperature 0~60 °C
Response time 1 sec
Protection IP68
Housing SS316L; Titanium
Dimension SMR12-2: Φ 34 Χ 226 mm (with wiper)
Φ 22 X 130 mm (no wiper)
SMR12-3: Φ 39X249.5 (with wiper)
Weight SMR12-2: analyzer: approx. 500 g (SS316L); approx. 400 g (Titanium)
SMR12-3: analyzer: approx. 800 g (SS316L); approx. 600 g (Titanium)
cable: 80 g/m
Typical Application
Drinking water, surface water, industry, water treatment, wastewater
  • Output Signal: RS485 (Modbus RTU protocol), 19,200 bps, 8 data bits, no parity, 1 stop bit; 4~20 mA (optional)
  • Data Resolution: 16 bits (0.001% FS)
  • Surge Protection: 4000 V DC
  • Power: 3.6~12 V DC & plusmn;10%, 45 mA
  • Protection: polarity, overload, short circuit
  • Safety: CE, FCC
Typical Applications
  • Drinking water, surface water, industry, water treatment, wastewater
Measurement Method
  • The suspended solid transmitter consists of one light source and photo detectors. Incident light is scattered by the particles in the sample, and the scattered lights are measured by the detector. The amount of scattering depends on the amount of material in the sample, the wavelength of light used and the size and composition of the suspended particles. The transmitter uses a long life near infrared LED (880 nm) and the 90o scattered light method in accordance with ISO 1027 /EN27027 to assure accurate turbidity measurement. The total suspended solids value is then derived from turbidity measurement. An automated mechanical wiper is to remain surface clean and remove air bubbles of the optical window in order to maximize the accuracy and minimize the maintenance requirement.
Standard cable length is 3 m, customized length is available upon request