The HD25.2 is a digital turbidity meter for laboratory and mobile use, suitable for measurements in drinking water, beverages, waste water and process liquids. The working principle is based on the nephelometric (90° scattered light sensor) and ratiometric method. It is equipped with three light detectors and two LED light sources (white and infrared) which are permanently kept under control in order to guarantee long-term stability. The instrument performs measurements according to the standards EPA 180.1, ISO-NEPH (ISO 7027), EBC and ASBC. It is also able to carry out measures of transmission factor percentage of white and infrared light. Stabilized power supply and advanced electronics garantee optimal performances over time. The HD25.2 is a datalogger that stores up to 999 samples. The data can be transferred from the instrument connected to a PC via the multi-standard RS232C serial port and USB 2.0. The RS232C serial port can be used to transfer the acquired measurements to a 24 col- umn printer. The dedicated software DeltaLog11 allows instrument management and data processing on PC.
