McVan ANALITE NEP9000 Series In-situ Turbidity Sensors

The ANALITE NEP9000 and NEP9500 series of turbidity probes are an enhanced version of our successful ANALITE 190 and 195 series probes. They offer better performance and greater ease of deployment yet are available in exactly the same mechanical package (G version).

The ANALITE NEP9000 and NEP9500 series of turbidity probes are designed for monitoring and process applications where turbidity levels of up to 3,000NTU may be encountered. Standard ranges are 100NTU, 400NTU and 1,000NTU, but custom ranges are available up to 3,000NTU.

Specifically the ANALITE NEP9000 probes are designed for applications where bio-fouling will not build up to obscure the optics such as in short monitoring deployment or placement in fast and cold running water. The ANALITE NEP9500 probes however, with their integral wiper assembly, are designed for operation where biofouling or sedimentation buildup is likely. The standard ANALITE NEP9000 and NEP9500 series of probes with its 316 stainless housing may be submerged to a depth of 100 meters (approx. 330 feet). An optional PVC housing is available for applications in salty or acidic water where crevice corrosion may occur in stainless steel. Its depth rating is 30 meters.

The ANALITE NEP9000 and NEP9500 probes use 90° optics and employs infrared light in accordance with ISO7027. All probes use a unique modulation technique that ensures almost total rejection of ambient light conditions as well as a unique microprocessor controlled differential sample and hold circuit for enhanced performance particularly at low turbidity levels.

The applications suited to the ANALITE NEP9000 and NEP9500 probes are so extensive and too numerous to elaborate on but generally they include:

1. Monitoring of streams and rivers.
2. Monitoring of water storage bodies including stratification studies.
3. Intermediate and final effluent treatment monitoring.
4. Hydrological run off studies.
5. Ground and bore water analysis.
6. Drinking water filtration efficiency.
7. Industrial process monitoring.
8. Sludge and dredge monitoring.

Which model (and option) is best used is dependent on the application, the measuring environment, the logging equipment and the monitoring period (deployment times) required.