Aquas - Model SMR12 Series -Suspended Solids Density Analyzer

• All-in-One Compact Housing, Built-in Transmitter and Sensors
• Robust IP68 Water Submersible Protection
• 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
• Software Tool for Data Monitoring, Calibration , Configuration and Diagnosis

• Type: 0~20,000 mg/L (depending on sample)
• Measurement range:
• ±3% measured±1 mg/L (0~2,000 mg/L)
• ±5% measured (2,000~20,000 mg/L)
• Resolution: 0.001 mg/L
• Repeatability: ±1% measured value
• 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: 3 secs
• Protection: IP68
• Housing: SS316L
• Dimension:
• Φ 34 Χ 226 mm (with wiper)
• Φ 22 X 130 mm (no wiper)
• Weight:
• analyzer: approx. 500 g
• cable: 80 g/m

• 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.

• 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.