Basic Water Quality Analyzer
Turbidity Meter

SMR10 series

Turbidity Analyzer

Turbidity Analyzer is connected directly via RS485 communication interface, providing simple, reliable, cost- saving process data with remote monitoring, calibration, configuration and diagnostics capabilities. The Turbidity Meter housing in a robust IP68 proof enclosure, 1500 N tensile strength Kevlar reinforced cable, up to 1.2 km digital data transmission, the transmitter is ideally used in water/wastewater industry.
  • Robust IP68 Water Submersible Enclosure, Solution Without Cabinet
  • Plug & Play, 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
SMR10 Turbidity Analyzer 
Type SMR10-1: 0~20 NTU
SMR10-2: 0~4,000 NTU
SMR10-4: 0~100,000 NTU (depending on the medium)
Measurement range ±3% of reading (0~4,000 NTU)
±5% of reading (4,000~100,000 NTU)
Resolution 0.001 NTU
Repeatability ±1% FS
Light source LED 880 nm
Process flow rate SMR10-1: Max 0.2l/min
SMR10-2; SMR10-4: Max. 3 m/s
Operation pressure Max.10 Kgf/cm2
Operating temperature 0~ 60 °C
Response time 1 sec
Protection IP68
Housing SMR10-1: POM
SMR10-2; SMR10-4: SS316L; Titanium (optional)
Dimension SMR10-1: 60(W) Χ 200(H) X 60(D) mm
SMR10-2: Φ34Χ226 mm (with wiper); Φ22Χ130 mm (no wiper)
SMR10-4: Φ39Χ249.5 mm
Weight SMR10-1: analyzer: approx. 350g
SMR10-2: analyzer: approx. 500g (SS316L), approx. 400g (Titanium)
SMR10-4: analyzer: approx. 800g (SS316L), approx. 600g (Titanium)
Cable: 80g/m
Typical Application
Drinking water, surface water, groundwater, industry, water treatment, wastewater
  • 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 V DC
  • Power: input: 3.6~12 V DC ±10%, 45 mA
  • Protection: polarity, overload, short circuit
  • This measuring device is a Nephelometic Turbidity Unit (NTU) according to ISO7027 (Formazin calibration solution)
  • Safety: CE, FCC
Typical Applications
  • Drinking water, surface water, groundwater,industry, water treatment, wastewater
Measurement Method
  • The turbidity transmitter consists of a light source, a sample cell, and a light detector (photo detector). 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 transmitter 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 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