EF-NH3 Intelligent Ammonia Nitrogen Analyzer

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EF-NH3 Intelligent Ammonia Nitrogen Analyzer

Product ID：HSYAad025

Price: Please inquire PDF Format

Supply Ability:50SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberEF-NH3

Brand NameHFENFAN

Payment TermsTT，PAYPAL，Alibaba.com Pay

EF-NH3 Intelligent Ammonia Nitrogen Analyzer

Product Introduction
The EF-NH3 Intelligent Ammonia Nitrogen Analyzer is a laboratory water quality testing instrument designed for the rapid and quantitative determination of ammonia nitrogen in water samples. Developed using advanced imported technology and high-performance optical components, it offers stable measurement performance and helps reduce interference from stray light.
The analyzer uses the Nessler reagent spectrophotometric method in accordance with HJ 535-2009, with improvements and upgrades for water quality analysis. It features a color LCD with a Chinese-language interface, integrated calibration and measurement functions, and direct concentration readings for convenient operation.
With storage for up to 100 standard curves and 5,000 measurement records, the EF-NH3 supports routine laboratory testing and historical data review. Its USB interface allows measurement results and stored records to be transferred to a computer.

Performance Features
• Rapid Ammonia Nitrogen Measurement: Provides direct concentration readings for efficient water sample analysis.
• Standard-Based Detection: Uses the Nessler reagent spectrophotometric method in accordance with HJ 535-2009.
• High-Performance Light Source: Equipped with an imported, high-brightness light source with a service life of up to 100,000 hours.
• Stable Optical Performance: Designed to reduce stray-light interference, with optical stability of ≤0.001 A per 10 minutes.
• User-Friendly Display: Features a large color LCD with an intuitive Chinese-language operating interface.
• Standard Curve Storage: Stores up to 100 standard curves, with additional user calibration capability.
• Large Measurement Memory: Saves up to 5,000 measurement records, including date, time, parameter, and test data.
• Data Protection: Includes power-loss data protection and measurement record storage for later review.
• Curve Recovery Function: Supports restoration of factory settings if standard curves are lost.
• USB Data Transfer: Transfers current measurement data and stored historical records to a computer.
• Durable Housing: Features a metal sheet housing designed for durability and a professional appearance.

Working Principle
The EF-NH3 Intelligent Ammonia Nitrogen Analyzer uses the Nessler reagent spectrophotometric method to determine ammonia nitrogen concentration in water.
During analysis, ammonia nitrogen in the sample reacts with Nessler reagent to form a colored compound. The instrument measures the absorbance of the resulting solution using its optical system. The measured absorbance is compared with the stored or user-calibrated standard curve to calculate the ammonia nitrogen concentration.
The result is displayed directly on the color LCD, allowing users to read and record the measured concentration. Samples exceeding the instrument's measurement range can be diluted and measured again.

Technical Parameters

Parameter	Specification
Model	EF-NH3
Measurement Parameter	Ammonia Nitrogen (NH3-N)
Measurement Range	0.000–100.000 mg/L
Measurement Accuracy	≤±3% F.S.
Repeatability	≤±3%
Resolution	0.001 mg/L
Light Source Service Life	100,000 hours
Optical Stability	≤0.001 A / 10 min
Display	Color LCD
Measurement Method	Nessler Reagent Spectrophotometric Method
Detection Cell	Colorimetric tube
Standard Curve Storage	Up to 100 curves
Measurement Data Storage	Up to 5,000 records
Data Communication	USB
Power Supply	220 V AC
Dimensions	300 × 200 × 120 mm
Weight	2.65 kg
Applicable Standard	HJ 535-2009

Note: Samples exceeding the measurement range should be diluted before testing.

Application Scenarios
The EF-NH3 ammonia nitrogen analyzer is suitable for ammonia nitrogen determination in a wide range of water quality testing applications.
• Surface Water Monitoring: Measurement of ammonia nitrogen in rivers, lakes, and reservoirs.
• Groundwater Analysis: Routine ammonia nitrogen testing of groundwater samples.
• Drinking Water Testing: Water quality analysis in drinking water laboratories.
• Wastewater Treatment Plants: Monitoring ammonia nitrogen levels in domestic and industrial wastewater.
• Environmental Monitoring Laboratories: Routine water pollution assessment and analytical testing.
• University Laboratories: Water chemistry experiments, teaching, and research.
• Industrial Laboratories: Water quality testing for production processes and environmental management.

EF-NH3 vs. Conventional Ammonia Nitrogen Testing

Comparison Item	EF-NH3 Intelligent Analyzer	Conventional Manual Colorimetric Testing
Measurement Method	Nessler reagent spectrophotometry	Colorimetric analysis
Result Display	Direct digital concentration reading	Manual calculation or instrument reading
Standard Curves	Stores up to 100 curves	Depends on the laboratory procedure
Data Storage	Up to 5,000 records	Depends on manual or external recording
Data Transfer	USB connection to computer	Depends on available equipment
Measurement Operation	Integrated calibration and measurement interface	More manual operation may be required
Light Source	Imported high-brightness light source	Depends on the instrument

Frequently Asked Questions
1. What does the EF-NH3 Intelligent Ammonia Nitrogen Analyzer measure?
It measures ammonia nitrogen (NH3-N) concentrations in water samples, including surface water, groundwater, drinking water, domestic wastewater, and industrial wastewater.
2. Which analytical method does the EF-NH3 use?
It uses the Nessler reagent spectrophotometric method in accordance with HJ 535-2009.
3. What is the measurement range of the EF-NH3?
The measurement range is 0.000–100.000 mg/L, with a resolution of 0.001 mg/L. Samples above the range should be diluted before measurement.
4. How accurate is the ammonia nitrogen analyzer?
The stated measurement accuracy is ≤±3% F.S., and repeatability is ≤±3%.
5. How many standard curves and measurement records can be stored?
The instrument can store up to 100 standard curves and 5,000 measurement records, including date, time, parameter, and measurement data.
6. Can users create their own calibration curves?
Yes. In addition to the built-in standard working curves, users can calibrate curves according to their analytical requirements.
7. Can measurement data be transferred to a computer?
Yes. The instrument has a USB interface for transferring current measurement data and stored historical records to a computer.
8. What is the service life of the light source?
The imported high-brightness light source has a stated service life of up to 100,000 hours.
9. Is the EF-NH3 suitable for wastewater treatment laboratories?
Yes. It is suitable for routine ammonia nitrogen testing in domestic and industrial wastewater, as well as environmental monitoring and water quality research laboratories.

Frequently Asked Questions
1. What does the EF-NH3 Intelligent Ammonia Nitrogen Analyzer measure?
It measures ammonia nitrogen (NH3-N) concentrations in water samples, including surface water, groundwater, drinking water, domestic wastewater, and industrial wastewater.
2. Which analytical method does the EF-NH3 use?
It uses the Nessler reagent spectrophotometric method in accordance with HJ 535-2009.
3. What is the measurement range of the EF-NH3?
The measurement range is 0.000–100.000 mg/L, with a resolution of 0.001 mg/L. Samples above the range should be diluted before measurement.
4. How accurate is the ammonia nitrogen analyzer?
The stated measurement accuracy is ≤±3% F.S., and repeatability is ≤±3%.
5. How many standard curves and measurement records can be stored?
The instrument can store up to 100 standard curves and 5,000 measurement records, including date, time, parameter, and measurement data.
6. Can users create their own calibration curves?
Yes. In addition to the built-in standard working curves, users can calibrate curves according to their analytical requirements.
7. Can measurement data be transferred to a computer?
Yes. The instrument has a USB interface for transferring current measurement data and stored historical records to a computer.
8. What is the service life of the light source?
The imported high-brightness light source has a stated service life of up to 100,000 hours.
9. Is the EF-NH3 suitable for wastewater treatment laboratories?
Yes. It is suitable for routine ammonia nitrogen testing in domestic and industrial wastewater, as well as environmental monitoring and water quality research laboratories.