The Alert colorimeter for manganese uses differential absorbance colorimetry (DAC) methodology to prevent background sample colour or turbidity affecting the analysis of spring and mineral water.
It has a working range of 10-100ug/l with a cycle time of around 20 minutes.
The running costs are kept to a minimum by low reagent use - typically 1ml per analysis for each reagent - and minimal consumables.
The Alert can be configured for continual operation, with warning beacons as well as feedback to the process.
Manganese is naturally occurring in many spring and mineral waters at much higher levels than permissible.
This is removed by treatment with ozone and settling.
If allowed to get through to the bottling plant, the manganese can cause discolouration and tainting of the water.
