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 mg/L.

4、 Dissolving temperature: No need for digestion.

5、 Resolution: 0.001 mg/L.

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: 190mm * 150mm * 95mm.

10、 Power supply: 2800mA rechargeable power supply.

11、 Environmental temperature: 5-40 ℃.

12、 Environmental humidity: ≤ 85% without condensation.

13、 Weight: The host weighs less than 1.4kg.

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. It has the function of curve coverage interference to prevent accidental operation of covering curves.

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

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

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

10. Optional printing function, which can print the measured values immediately or query historical records for printing.

11. Equipped with a large rechargeable battery, the standby time can reach 168 hours.

Standard List