1、 Instrument Introduction

The DS-901B series COD rapid digestion analyzer is a heating device for rapid determination of chemical oxygen consumption. Sample digestion pretreatment can be performed for COD, total phosphorus, total nitrogen, and other parameters.

This instrument can automatically complete the constant temperature timing time, with a time setting of 1-720 minutes. After the temperature constant time is reached, the instrument has an automatic sound alarm function and automatically shuts down without manual intervention. Small temperature drift and high constant temperature accuracy. It adopts a new type of PID temperature controller, time controller, fast heating speed, small temperature buffer, and constant and uniform temperature. It is easy to operate and is a new experimental instrument product. Compared with the current reflux device for determining chemical oxygen demand using potassium dichromate method, it has the characteristics of small volume, water saving, electricity saving, and good constant temperature performance. Suitable for heating and rapid determination of chemical oxygen demand (COD), the obtained data corresponds perfectly to classical methods and can be used in industries such as environmental protection, higher education, medicine, health, food, tap water, chemical industry, sewage treatment, papermaking, petrochemicals, metallurgy, printing and dyeing, making COD measurement efficient, fast, and economical.

2、 Main technical indicators

1. Temperature control: 45 ℃~190 ℃;

2. Dissolving time: 0 minutes to 720 minutes;

3. Temperature indication error: ± 2 ℃;

4. Temperature field balance: ≤ 2 ℃;

5. Operating environment temperature: 5-40 ℃

6. Operating environment humidity: ≤ 85RH

7. Supply voltage: AC220V ± 10% (50Hz ± 2Hz)

8. Dimensions: 280 * 240 * 120mm

9. Weight: 5kg

10. Dissolvable sample quantity: 12 (standard) (optional 9/25 wells)