HACH Hash Trace Dissolved Oxygen Analyzer

NegotiableUpdate on 02/12

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Trace dissolved oxygen analyzer is an indispensable instrument in the water quality analysis system of the power industry. The Hach 2582sc trace dissolved oxygen analyzer consists of an SC4500 controller and a market tested Hach trace dissolved oxygen sensor. Adopting a consistent product design platform, familiar touch screen design, skilled sensor assembly experience, and the same installation size as the 9500 controller, the 2582sc is easier to install, integrate, and debug.

Product Details

The measurement of dissolved oxygen is based on the well-known Clark battery principle. The oxygen permeable membrane isolates the water sample from the electrode, so there is no need to adjust the water sample.

Other reducing or oxidizing ions do not interfere as they cannot pass through the breathable membrane.

Apply a constant voltage to two electrodes and maintain a constant potential for each electrode. The gold working electrode (cathode) will reduce dissolved oxygen to hydroxide ions:

O2+2H2O+4e--->4OH

The oxidation reaction occurs on the surface of a large silver electrode (anode):

4Ag++4Br--->4AgBr+4e-

The oxidation-reduction reaction generates a diffusion current, which is proportional to the concentration of dissolved oxygen.

Electrochemical reactions and diffusion rates are temperature sensitive. Therefore, the measurement unit is equipped with a temperature sensor that can automatically perform temperature compensation.