ViSolid ViSolid ViSolid
ViSolid ViSolid ViSolid

ViSolid 700IQ Suspended Solids Probe

The WTW IQ Sensor Net ViSolid® Suspended Solids Probe uses optical sensors for the in-situ use to measure suspended solids via scattered light and direct back-scattering with ultrasonic cleaning system. 

Water | Water Quality Measurement | Xylem Water

Product Features:

  • Digital suspended solids sensor
  • Ultrasonic cleaning without mechanics
  • Extremely low-maintenance
  • Highly accurate factory calibration
  • High operational safety (sensor check function)
  • Sea water sensor available

The ultrasonic cleaning system ensures the low-maintenance and continuously reliable measuring operation of the sensors, which are therefore very suited for extreme applications, such as wastewater treatment plants.

With higher particle concentrations, the procedures of turbidity measurement are only suitable in some cases; here, you will need special measuring techniques to determine the concentration. WTW uses two procedures, which are used depending on the suspended solids concentration: With low concentrations, a scattered light measurement is used; for higher concentrations, the direct back-scattering yields optimal results.

The sea water model includes the sensor for use in special media: All wetted parts are made of titanium and plastic and are therefore extremely resistant to corrosion.

  ViSolid 700IQ ViSolid 700IQ SW
Measuring Method Procedure for measuring scattered light Procedure for measuring scattered light
Measuring range: g/l SiO2 % SiO2 0 ... 300 g/l SiO2 0 … 30% SiO2 0 ... 300 g/l SiO2 0 … 30% SiO2
Measuring range: g/l TSS % TSS 0 ... 1000 g/l TSS 0 … 100% TSS 0 ... 1000 g/l TSS 0 … 100% TSS
Resolution: g/l SiO2 % SiO2 Automatic according to measuring range 0.1 mg/l ... 1 g/l Automatic according to measuring range 0.001 % ... 0.01 % Automatic according to measuring range 0.1 mg/l ... 1 g/l Automatic according to measuring range 0.001 % ... 0.01 %
Resolution: g/l TSS % TSS Typical sludge characteristics stored: matrix type 1, matrix type 2 Calibration by user: adjustment via correction factor, 1-point or multi-point calibration possible Typical sludge characteristics stored: matrix type 1, matrix type 2 Calibration by user: adjustment via correction factor, 1-point or multi-point calibration possible
Cleaning System Ultrasound cleaning system Ultrasound cleaning system
SensCheck Contamination detection of optical window; failure of cleaning system Contamination detection of optical window; failure of cleaning system
Pressure Resistance 10 bar (incl. sensor connection cable) 10 bar (incl. sensor connection cable)
Certifications CE CE