Technical Parameter

1、 Measurement method: GB7493-87 "Water quality - Determination of nitrite nitrogen - spectrophotometric method".

2、 Measurement range: 0-1mg/L (segmented).

3、 Detection limit: 0.02mg/L.

4、 Dissolving temperature: No need for digestion.

5、 Colorimetric method: Colorimetric tube for color comparison.

6、 Resolution: 0.001mg/L.

7、 Accuracy: The indication error shall not exceed 5%.

8、 Repeatability: The relative standard deviation shall not exceed 3%.

9、 Optical stability: ≤ 0.001A/20 minutes.

10、 Size: 270mm * 220mm * 120mm.

11、 Power supply: AC (220V ± 5%), 50Hz.

12、 Environmental temperature: 5-40 ℃.

13、 Environmental humidity: ≤ 85% without condensation

14、 Weight: The host weighs less than 1.3kg.

main features

According to HJ670-2013, the research and development have been improved, and the measurement results are accurate and effective.

2. Adopting imported high brightness and long-life cold light source, with good optical performance and a light source lifespan of up to 100000 hours.

3.5-inch large LCD screen with full Chinese display, direct data reading, simple and time-saving operation.

4. It can save 20 standard curves and 200 measured values (date, time, parameters, test data).

5. Memory standard working curve, users can also calibrate the curve according to their needs.

6. It has a curve coverage interference function, which can prevent accidental operation from covering the curve.

7. It has data storage and power-off protection functions, making it convenient to query historical measurement data and prevent data loss.

Instrument selection

Standard List