1、 Product Usage:

AD-1A/AD-2AZ/AD-2AH (seawater) is suitable for detecting ammonia nitrogen concentration in large, medium, and small water plants, industrial and mining enterprises, domestic or industrial water, in order to control the ammonia nitrogen in water to meet the specified water quality standards.

2、 Product principle:

This instrument applies the principle of microcomputer photoelectron colorimetric detection to replace the traditional visual colorimetric method. Eliminating human error, the measurement resolution is greatly improved.

The blue model is AD-1A (digital display type)

★The black model is AD-2AZ (upgraded waterproof type)

★The black model is AD-2AH (seawater specific)

3、 Technical parameters:

Measurement range: 0-10mg/L

Minimum indication: 0.001mg/L

Repeatability: ≤ 2%

Basic error: ≤±5%FS

Power supply voltage: DC 9V

4、 Product features:
1. Microcomputer, touch sensitive keyboard, clear LCD digital display, easy to use.
2. The photoelectric colorimetric principle of spectrophotometry is adopted, which is convenient for the application of reagents. After the water sample is put into the reagent for reaction, it can be read and the measured value can be displayed digitally within a few minutes.
3. Our company's specially designed LED light source automatic control circuit ensures stable light source and solves the problem of preheating during startup. Its light source has a lifespan of up to 20 years and can be used directly without preheating when turned on.
4. The host is equipped with a high-power battery, which can be used for quantitative measurement in the field. It can be used continuously for 4 hours and is ready to charge.
5. The instrument stores calibration curves within the full range, with power-off protection, and calibration data will not be lost. It can automatically zero and calibrate at 5 points, with non-linear processing and data smoothing functions. The minimum reading of the instrument is 0.001mg/L.
6. Advanced technology, in compliance with the national standard GB5749-2006 for drinking water hygiene.