product overview

G21 ammonia nitrogen rapid analyzer is a cost-effective water quality testing equipment that uses colorimetric measurement, advanced solid-state cold light source, narrowband interference technology, and microcomputer automatic data processing to directly display and print the concentration value of the sample.
The device is equipped with a 4.3-inch LCD screen and a flat UI design interface, which allows for more intuitive display of detection data. The guided detection mode reduces learning costs, and users can easily and quickly measure the ammonia nitrogen value of pollutants.

Detection Principle

The determination of ammonia nitrogen is carried out using Nessler's reagent colorimetric method. The water quality detection item is selected, and the imported cold light source emits a light source signal to the sensor. The data is processed by a RAM processor and directly fed back to the sample concentration value, which is displayed in mg/L.

Product Features

•Ammonia nitrogenThe determination is carried out in accordance with national environmental standardsHJ535-2009， Accurate and effective measurement results.

•Imported solid-state cold light source with stable optical performance, no need for light source preheating, and a light source lifespan of up to 10 years.
•Equipped with Glos water quality intelligent detection system and data averaging calculation dozens of times per second.
•Functions such as automatic printing of detection results and guidance of detection mode.
•Equipped with complete consumables and reagents, with low prices and minimal usage.
•4.3-inch high-definition color screen, flat UI design.
•ABS material, high-strength, corrosion-resistant, and high-temperature resistant shell.

Technical Parameter

PRODUCT MODEL	G21 ammonia nitrogen rapid analyzer
Detection parameters	Ammonia nitrogen
Measurement standards	HJ535-2009
measuring range	0-50mg/L
limit of detection	0.05mg/L
Dissolving temperature	No need to dissolve
detection time	5 minutes/25 samples
repeatability	≤± 5％
Indication error	≤± 5％
Optical stability	≤± 0.001Abs/20 minutes (100000 hours lifespan)
Colorimetric method	(16mm) colorimetric tube
printer	Micro thermal printer
intelligent detection	Equipped with Glos water quality intelligent detection system
screen display	4.3-inch high-definition color LCD screen
Equipment functions	Water quality analysis, photometric measurement, data management, USB upgrade
Batch processing volume	6/16/25 (default 16)
Instrument power supply	AC（220V±5%），50Hz
work environment	5-40 ℃, ≤ 85% non condensing
Instrument dimensions	300mm×222mm×88mm
Instrument weight	2.8kg

Determination steps for COD total phosphorus and total nitrogen

Ammonia nitrogen determination steps

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Using more efficient and stable pre made reagents The instrument comes standard with pre made reagents, which can be quickly detected by simply adding the water sample to the reagent tube, resulting in higher efficiency and stability. Gift of Finland BioHit pipette for more precise pipetting Green Kerry's full range of water quality testing equipment is equipped with Finland's BioHit by default Genex series pipettes 1-2 pieces (market price: 528 yuan)

Equipped with an intelligent Glos detection system The program adopts a flat card design style, with a clear and easy to understand interface. The overall operation is guided, allowing you to quickly get started and complete water quality testing.