1、 Instrument Introduction

The TC-200B portable chemical oxygen demand rapid analyzer is an integrated analyzer specially designed for on-site COD measurement, which has been upgraded and modified by our company based on the 200A COD analyzer. This COD analyzer is equipped with PID automatic adjustment technology and functions such as curve self calibration and automatic zero adjustment, which enhances the accuracy and stability of the instrument; In addition, this COD analyzer can be used for both AC and DC, has a built-in high-power battery, and a built-in micro thermal printer, which greatly facilitates on-site use by laboratory personnel. Widely used in various industries such as laboratory testing, sewage treatment, colleges and universities, environmental monitoring, sewage treatment, as well as colleges and research institutions.

2、 Functional features:

1. The unique all-in-one design mode integrates digestion and measurement, making it easier to carry and measure;

2. Built in dual high-power lithium battery DC power supply, capable of conducting multiple batches of experiments on site; ★

3. The digestion and determination power supply systems are independently separated and do not interfere with each other, reducing external influence on the results; ★

4. Dual display screen, LCD backlit display, Chinese operation interface, concise and clear; ★

5. The measurement system adopts advanced optical systems and cold light sources, with high measurement accuracy, small drift, and good stability;

6. The digestion system adopts PID regulation technology, which has high temperature control performance, good stability, and saves energy consumption;

7. The system has a built-in measurement curve self calibration function, which can automatically zero;

8. Built in large capacity storage space, capable of storing 600 measurement results with time records;

9. Equipped with a data interface, it can be directly connected to a computer USB interface to upload experimental data; ★

10. Built in micro thermal printer, capable of real-time printing of measurement data;

11. Integrated suitcase design, easy to carry, no need for additional power supply, convenient to use;

3、 Technical indicators:

1. Measurement range: 5-150 mg/L, 100-5000 mg/L

2. Detection principle: Rapid digestion spectrophotometry

3. Optical stability: less than 0.003A/30min

4. Measurement error: ≤ ±5 %

5. Wavelength: 420nm and 610nm

6. Dissolving temperature: 165 ± 1 ℃ (up to 190 ℃);

7. Constant temperature accuracy: ± 0.5 ℃

8. T-field uniformity: ≤ 2℃；

9. Temperature error: ± 1 ℃;

10. Time error: ≤ 30S

11. Dissolving time: ≤ 15 minutes (freely adjustable from 0-720 minutes);

12. Dissolving quantity: 4 water samples (can be expanded to a maximum of 25 if used in the laboratory);

13. Anti chlorine interference: [CL-] ＜1000mg/ L； [CL -]<4000mg/L (optional);

14. Determination method: Rapid catalytic method (potassium dichromate method);

15. Storage: 100 curves, 30000 measurement results (customizable)

16. Usage environment: 5~40 ℃, relative humidity<85% (no condensation);

17. Working power supply: AC220V ± 10%/50Hz, lithium battery

4、 Instrument configuration

1. One host

2. Four digestion tubes

3. Four colorimetric dishes

4. One set of COD reagent

5. One power cord

6. One data cable

7. One certificate of conformity

8. One warranty card

9. One copy of the instruction manual