JH-TD300 Three in One Multi Parameter Water Quality Tester

1、 Product Overview

This product combines classic colorimetric methods with computer technology, using microcomputer optoelectronic colorimetric detection principles to replace traditional visual colorimetric methods, greatly improving measurement resolution and achieving automation of the measurement process. It can be widely applied to the monitoring of sewage outlets of factories and mining enterprises, the monitoring of imports and exports of urban sewage treatment plants, the monitoring of water quality of Rivers and Lakes, and the process control of sewage treatment facilities.

2、 Performance characteristics

1. Large screen LCD backlit display, pure Chinese operation interface, user-friendly program design.

2. The measurement range is wide and can be switched according to the actual situation of the water sample.

The calibration mode from point 3.1 to 7 automatically calculates slope, intercept, and correlation coefficient, with high measurement accuracy.

4. Intelligent design for fault self diagnosis makes instrument management and maintenance simple and convenient.

5. Large capacity data storage with power-off protection design ensures that the instrument is not damaged and data records are not lost.

6. Strong anti-interference ability, suitable for industrial sites.

7. It can be widely used for monitoring surface water and pollution sources.

8. Using semiconductor cold light source emitters, the light source has a long lifespan.

9. Can be connected to a computer to export measurement data, and can be connected to a printer to automatically print measurement data (optional).

10. Low reagent usage, low operating costs, and strong anti-interference ability.

3、 Technical parameters

1. Curve parameters: 100 measurement curve parameters can be set;

2. Calibration: 1-7 point calibration mode, automatically correcting curve values;

3. Clock: Built in real-time clock, with a monthly cumulative error of less than 10 seconds;

4. Record storage: It can store 30000 measurement results without losing data when powered off;

5. Printing: Portable printer, directly print measurement results (optional);

6. Communication method: RS232, which can upload measurement results to a computer for user statistical analysis;

7. Display: 240 * 128 large blue backlit display, Chinese operation interface;

8. Environmental temperature: (5~40) ℃; Environmental humidity: relative humidity<85% (no condensation);

9. Dimensions: 270 * 200 * 120mm; total weight of the machine is 1KG;

10. Working power supply: AC220V ± 10%/50Hz.

COD index

1. Determination method: Rapid catalytic method (chromium method);

2. Measurement range: 5-10000 mg/L (segmented or diluted measurement when>1000 mg/L);

3. Dual wavelength measurement: 5-150mg/L low wavelength; 100～10000mg/L, High wavelength;

4. Measurement error: 5-100 mg/L, error ≤± 5 mg/L; 100 mg/L～10000 mg/L， Relative error ≤ ± 5%;

5. Dissolution temperature: 165 ± 1 ℃; Dissolving time: 15 minutes;

6. Anti chlorine interference: [CL -]<1000mg/L (>1000mg/L can be diluted for measurement).

Ammonia nitrogen index

1. Determination method: Nessler's colorimetric method;

2. Measurement range: 0.01mg/L to 50mg/L;

3. Measurement error: ≤± 5%.

Total phosphorus index

1. Determination method: ammonium molybdate spectrophotometric method;

2. Measurement range: 0.01mg/L to 24mg/L;

3. Measurement error: ≤± 5%;

4. Dissolution temperature: 120 ± 1 ℃; Dissolving time: 30 minutes.

Note: This product can be used as a two in one detector that combines any two indicators of COD, ammonia nitrogen, and total phosphorus