Technical Parameter

1、 Measurement method: HJ535-2009 "Determination of Ammonia Nitrogen in Water Quality - Nessler's Reagent spectrophotometric method".

2、 Measurement range: 0-50mg/L (segmented measurement).

3、 Detection limit: 0.05 ppm.

4、 Dissolving temperature: No need for digestion.

5、 Resolution: 0.001 ppm.

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

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

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

9、 Instrument size: 310mm * 230mm * 150mm.

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

11、 Environmental temperature: 5-40 ℃.

12、 Environmental humidity: ≤ 85% without condensation.

13、 Weight: The host weighs less than 3kg.

main features

1. Using EPA approved methods that comply with HJ535-2009 standards, the measurement is 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 80 standard curves and 1800 measured values (date, time, parameters, test data).

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

6. One click factory reset, which can quickly recover in case of curve loss caused by misoperation.

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

8. Equipped with a USB interface, data can be transferred to the computer for permanent storage.

9. It has a printing function, which can immediately print the measured values or query historical records for printing.

Standard List