Portable Water Quality Analyzer

I. Product Overview

The instrument is an integrated portable ammonia nitrogen analyser based on spectrophotometry. Measurement and data transmission are combined: a high-precision optical system and preset standard curves, together with dedicated pre-made reagents, allow fast and accurate one-key determination of ammonia nitrogen. The design fully meets the demands of on-site analysis of complex water quality and is mainly used for whole-process monitoring in industrial wastewater treatment and municipal sewage management, providing immediate data support for process optimisation and compliant discharge. A high-capacity battery and thermal printer enable standalone field work, while 4G/Wi-Fi, GPS and the cloud platform complete the loop from on-site testing to data traceability.

II. Applicable Standards

1. HJ 535-2009 Water quality — Determination of ammonia nitrogen — Nessler reagent spectrophotometric method

2. HJ 536-2009 Water quality — Determination of ammonia nitrogen — Salicylic acid spectrophotometric method

3. HJ 1448-2026 Water quality — Determination of ammonia nitrogen — Nessler reagent portable photometric method

4. HJ 1449-2026 Water quality — Determination of ammonia nitrogen — Salicylic acid portable photometric method

5. JJF 2289-2025 Calibration specification for ammonia nitrogen analysers

III. Measuring Principle

The instrument performs quantitative water quality analysis by spectrophotometry. Its light source system operates at 420 and 700 nm, ensuring specificity and accuracy. With the supplied pre-made reagents, once the colour reaction is complete the colorimetric tube or measuring bottle is placed in the measuring chamber; the highly stable optical path and sensor then measure the absorbance at the specific wavelength and, strictly following the Lambert-Beer law, automatically apply the stored standard curve to calculate the ammonia nitrogen concentration.

IV. Applications

Ammonia nitrogen is a core monitoring parameter of water quality management and is widely used in pollution source control, treatment process optimisation and environmental assessment. In industrial wastewater (such as chemical and aquaculture operations) and municipal sewage treatment, ammonia nitrogen data directly guide the operation of nitrogen removal processes and discharge compliance; in environmental supervision the indicator is used to identify domestic pollution and assess the ecological safety of water bodies.

V. Key Features

1. Android 7.1.1 smart operating system for a smoother interactive experience, faster response and greater stability.

2. Built-in 6-position digester with a 6-position cooling fan, independently controlled for rapid digestion and cooling.

3. Detection, digestion and cooling can run simultaneously, greatly improving efficiency.

4. Portable all-in-one design with a built-in high-capacity lithium battery: digestion and measurement can both be completed in the field.

5. Factory-prepared reagents: simply add the water sample to the tube to start the measurement.

6. Built-in thermal printer with automatic and batch printing, editable print content and QR code support.

7. Built-in instructional videos: users can follow the demonstration while operating, which makes learning much easier.

8. Wi-Fi and 4G modules for wireless data upload.

9. Data cloud platform that receives measurement data for online storage and short- and long-term trend analysis.

10. GPS positioning shows the longitude, latitude and landmark of the measuring point in real time; the position is saved with the data and can be uploaded to the cloud platform.

VI. Technical Parameters

Performance parameters

Physical parameters

Operating environment