VTSYIQI Turbidity Meter Tester Kit Turbidimeter With Vials Range 0~1100 NTU/FNU 0~275 EBC 0~9999 ASBC For Light Tap Water Turbidity Meter Tester Sewage Treatment
Easy-to-use portable turbidity meter comes with a standard carrying case. 2 to 5 points push-button calibration using the Formazin Standards. Selectable 4 turbidity units, including the NTU, FNU, EBC and ASBC. Single measurement mode automatically recognizes and holds the stable reading. Continuous measurement mode can be used for indexing or matching the sample vials. Auto-Power Off effectively conserves battery life. Setup menu allows setting the 7 parameters, including the number of calibration points, resolution, date and time, etc. Reset feature automatically resumes all settings back to factory default options. Expanded memory stores and recalls up to 100 data sets. Stored data can be transferred into computer by USB communication interface. Multi-mode power scheme (battery, power adapter or USB port) ensures that use the meter smoothly.
Operating Principles
portable turbidimeter operates on the nephelometric principle of turbidity measurement and is designed to meet the criteria specified in ISO 7027.
The following figure shows basic optical system of the meter. It includes a light source and a detector to monitor the light scattered at 90 degree with respect to the incident beam.