The Analite 390 series of microprocessor based turbidity probes are designed for monitoring and process applications where turbidity levels of up to 1,000NTU may be encountered.

The ranges available are 40NTU, 100NTU, 400NTU and 1,000NTU that can be set by the user. There are four probes available in the 390 series - the NEP390, NEP391, NEP395 and NEP396.

The NEP390 and NEP391 probes are designed for applications where bio-fouling is not be a problem such as short monitoring deployment or placement in fast and cold running water. The NEP395 and NEP396 probes with their integral wiper assembly are designed where bio-fouling or sedimentation build-up is likely. Wiping can be initiated automatically (periodically) via a direct RS232 command or manually as required.

The probes can be submerged to a depth rating of 100 meters (approx. 330 feet); this pressure rating applies to static (non-flowing) water. The 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.

The SDI12 or 4-20mA versions are ideal to use with our FROG or Hawk series of data loggers in groundwater, river, tidal/estuary and effluent quality applications.