Basic Water Quality Analyzer
Sludge Density Analyzer

SMR12 series

Suspended Solids Analyzer

Suspended Solids 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.
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DM (3.5 MB)
  • All-in-One Compact Housing, Built-in Transmitter and Sensors
  • Robust IP68 Water Submersible Protection, Directly Installed in the Field, No Cabinet Required
  • Plug & Play, On-line Realtime Measurement
  • Ultra Low Power Consumption, Ideal for Outdoor Applications
  • 1500 N Tensile Strength Kevlar Reinforced Cable
  • Surge Protection for Power and RS485 Communication
  • RS485 Digital Communication, Minimize Cabling and Engineering Cost
  • Standard Modbus RTU Protocol, Direct Connected with PLC, HMI
  • Sapphire Glass Windows to Prevent Scratch
  • Innovative Nano Coating to Remain Window Clean
  • Auto Cleaning Wiper, Less Maintenance
  • Onboard Memory Allowing Users Easily Calibrate and Configure Sensor at Lab and Distribute to Various Fields Sites
  • AQCFG Software Tool for Data Monitoring, Calibration , Configuration and Diagnosis
  • IECEx/ATEX Ex ia IIB T5 Ga Explosive Proof Certification
Drinking water, surface water, industry, water treatment, wastewater
Measurement Method
The turbidity analyzer consists of a light source, a sample cell, and a light detector (photodetector). Incident light is scattered by the particles in the sample, and the scattered light is 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 analyzer uses a long life near infrared LED (880 nm) and the 90° scattered light method which complies with DIN ISO 7027 or EPA method 180.1. An automated mechanical wiper is to remain surface clean and remove air bubbles from the optical window in order to maximize the accuracy and minimize the maintenance requirement.

Submersible, flow through, pipe insertion

SMR12 Suspended Solids Analyzer 
Output Signal Output Signal: RS485 (Modbus RTU protocol), 19,200 bps, 8 data bits, no parity, 1 stop bit; 4~20 mA
Data Resolution 16 bits (0.001% FS)
Surge Protection 4000 VDC
Power input: 5~12 VDC, 300 mA
Protection Polarity, Overload, Short circuit
This measuring device is a Nephelometric Turbidity Unit (NTU) according to ISO7027 (Formazin calibration solution)
Safety CE, FCC
Suspended Solids
Measurement range SMR12-2: 0~15/150/1,500/15,000 mg/L (depending on sample), auto range SMR12-3: 0~15/150/1,500/15,000/30,000 mg/L (depending on sample), auto range
Accuracy SMR12-2: ±3% measured value ±1 mg/L (0~1,500 mg/L), ±5% measured value (1,500~15,000 mg/L)
SMR12-3: ±3% measured value ±1 mg/L (0~1,500 mg/L), ±5% measured value (1,500~30,000 mg/L)
Resolution 0.001 mg/L
Repeatability ±1% measured value
Light source LED 880 nm
Process flow rate Max. 3 m/s
Operation Pressure Max.10 Kgf/cm²
Operating Temperature 0~60 °C
Response Time 3 secs
Protection IP68
Connection 3/4”-14 PT; 5-pin M12 plug
Housing Material SS316L; Titanium
Membrance Material SS316L; Titanium
Dimension Φ 42Χ196 mm
Weight analyzer: approx. 200g (SS316L) ; 400 g (Titanium) ; Cable: 80 g/m