Shen ChangHongShen ChangHong

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laboratory analytical instruments in China.

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CHNH-812 Portable Ammonia Nitrogen Analyzer

CHNH-812

[Product Overview]

Ammonia nitrogen is a key indicator of water pollution. Excessive concentrations can severely damage aquatic ecosystems and ultimately affect human health. Our ammonia nitrogen water quality analyzers are designed to rapidly and accurately measure ammonia nitrogen concentrations in water samples, providing reliable data support for environmental monitoring agencies, wastewater treatment plants, industrial enterprises, and research institutions.

[Application Area]

Product Details
Custom Matching


Technical Specifications

Measuring range

Ammonia Nitrogen: 0.00-25.00mg/L (dilute if excess the measuring range)

Measuring accuracy

0.01 mg/L

Indication error

≤±3 %

Repeatability

≤±2%

Optical stability

Absorbance drift ≤0 .002A/20min; Light source lifespan 100,000 hours

Testing standard

HJ/T 535-2009  

Analytical method

Nessler Spectrophotometry Method (Colorimetric Tubes)

Curve and Storage

250 factory calibration curves, 749 user-defined curves; Can store 9999 records.

Display

2.4-inch 240*160 LCD screen

Power

10W   

Dimensions

Instrument:88mm*230mm*52mm      Carrying case:457mm*370mm*188mm

Weight

Instrument:0.45kg    Carrying case and accessory:1kg

Charge & Data interface

Type C

Working environment

(1) Ambient temperature: 5~40℃ ⑵ Relative humidity: ≤85% ⑶ Power supply: Instrument: Rechargeable lithium battery or AC (220±22)V; (50±0.5) Hz (4) No significant vibration and electromagnetic interference, avoid direct sunlight.

 

 

 

 

Functional Features

 

    Utilizes cold light and monochromatic light sources, ensuring exceptional optical stability without interference from various light sources.


    Simple operation with high measurement accuracy, meeting the latest discharge standards.


    Large LCD screen; all settings, calibration, and record operations are performed within the integrated environment.


    Strong anti-interference capabilities using V/F conversion, software redundancy, and software traps.


    Can store working curves and historical records; users can calibrate and store their own curves, with data retention even during power outages.


    Can store 150 factory curves and 1000 records, with data retention even when powered off.


    The main unit casing is made of post-mold ABS material, offering excellent corrosion resistance.

 

 

Packing List

 

Main Unit: 1 piece

Colorimetric tube: 10 tubes (16*110mm)

Tube rack: 1 piece

Reagent: 1 kit

Power Cord: 2 piece

Manual: 1 copy

Certificate of Conformity: 1 copy

Warranty Card: 1 copy

 

 


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