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119 view(s) How to Calibrate the Hach LDO Probes
Let us first look at the probe. The Hach dissolved oxygen probes are equipped with a measuring LED that emits a pulse of blue light and a photodiode as a light detector. The probes are also equipped with a sensitive luminescent coated spot that is exposed to the sample.
The measuring LED emits a pulse of blue light which irradiates the back of the oxygen-sensitive spot. The coating mate...
