DEVICE FOR DETERMINATION OF OXIDIZED SUBSTANCES Russian patent published in 1997 - IPC

FIELD: measurement technology. SUBSTANCE: device has sequentially installed reservoir for reagent with dosing facility, mixer, reagent indicator positioned in drain pipe line, dosing facility of medium being analyzed, second indicator of reagent, reaction cell, time relay, and indication unit. Input of analyzed liquid dosing facility is coupled with main line of analyzed medium, and its output is connected to mixer input. Output of reagent dosing facility is connected to second input of mixer, and its input is coupled to reagent reservoir. Mixer output is coupled to input of reaction cell the output of which is connected to drain line. One of reagent indicators is positioned in reagent reservoir and second, at reaction cell output. At the same time both indicators are connected to indication unit, and dosing facilities, to time relay. Device has also second reservoir for reagent, second reagent dosing facility, the output of which is coupled to auxiliary reservoir, and output is connected to reaction cell input. In addition, device has third indicator of reagent located between mixer output and point of connection of auxiliary dosing facility. Reagent indicators are made as electrodes, and dosing facilities are manufactured as peristaltic pumps. EFFECT: higher measurement accuracy. 5 cl, 1 dwg