How-to: Calibrate – WTW Turb PLUS 2000 turbidity analyzer series

How to calibrate the WTW Turb PLUS 2000 turbidity analyzer?

After a measuring range change, the analyzer must be calibrated for the newly selected measuring range. Suitable calibration kits are available for each measuring range.

For the calibration itself, the calibration cuvettes must first be indexed. To do this, the calibration cuvettes are rotated in measuring mode until the lowest measured value is reached. This position is marked on the calibration cuvette by means of a ring to define the correct orientation. 

During the actual calibration, the instrument requests those standards that are included in the corresponding calibration kit. In order to achieve the best possible calibration and a correspondingly accurate measurement, care must be taken to ensure the cleanliness of the calibration cuvettes.