1、 Product Overview

The design performance of this detector meets the requirements of environmental protection industry standards. It combines traditional methods with computer technology and applies microcomputer optoelectronic colorimetric detection principles to replace traditional visual methods, greatly improving measurement resolution. The automation of the measurement process has been achieved. 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. It can be widely applied to the detection of wastewater from various industries (industrial wastewater, urban sewage, domestic sewage, and surface water in rivers and lakes).

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.

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

4. Calibration mode from 1:00 to 7:00, automatically calculating slope, intercept, and correlation coefficient, measuring height.

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

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. It can be connected to a computer to export measurement data, and the built-in printer can directly print measurement data.

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: Built in printer, directly printing measurement results;

6. Communication method: RS232， The measurement results can be uploaded to a computer for user statistical analysis (with standard analysis software);

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; The 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, absolute error ≤± 5 mg/L; 100 mg/L to 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: 0-50mg/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.

Total nitrogen index

1. Measurement method: photometric colorimetric method;

2. Measurement range: ≤ 100mg/L； Measurement error: ≤ ±5 %

3. Dissolution temperature: 125 ± 1 ℃; Dissolving time: 30 minutes.

Nitrate nitrogen index

1. Determination method: Chromogenic acid colorimetric method;

2. Measurement range: 0.01mg/L to 100mg/L (segmented measurement for>20mg/L, dilution measurement for excess range);

3. Measurement error: ≤ ±5 %；

Nitrite nitrogen index (optional)

1. Determination method: N - (1-naphthyl) - ethylenediamine photometric method;

2. Measurement range: 0.01mg/L to 12mg/L (segmented measurement when>0.3 mg/L, dilution measurement for excess range);

3. Measurement error: ≤ ±5 %；

Suspended solids index (optional)

1. Measurement method: spectrophotometric method;

2. Measurement range: 0-500mg/l (>500mg/l can be diluted for measurement);

3. Measurement error: ≤ ±5 %；

Turbidity index (optional)

1. Measurement method: spectrophotometric method;

2. Measurement range: 0-400 NTU (segmented measurement when>100 NTU, dilution measurement for excess range);

3. Measurement error: ≤ ± 5%.

Chromaticity index (optional)

1. Measurement method: spectrophotometric method;

2. Measurement range: 0-500 degrees (>500 degrees can be diluted for measurement);

3. Measurement error: ≤± 5%;