SH-320A Multi-Parameter Water Quality Analyzer

Position: Home > > Environmental monitoring and analysis > Water Nutrient salt > Ammonia nitrogen determination apparatus > SH-320A Ammonia Nitrogen Multi-Parameter Water Quality Analyzer

SH-320A Ammonia Nitrogen Multi-Parameter Water Quality Analyzer

Product ID：HSYAad029

Price: Please inquire PDF Format

Supply Ability:50 SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberSH-320A

Brand NameSHENGAOHUA

Payment TermsTT，PAYPAL，Alibaba.com Pay

SH-320A Ammonia Nitrogen Multi-Parameter Water Quality Analyzer

Product Introduction
The SH-320A is a touchscreen multi-parameter water quality analyzer designed to measure chemical oxygen demand (COD), ammonia nitrogen, total phosphorus, pH, and dissolved oxygen (DO). Its integrated molded housing features acid- and corrosion-resistant properties, while the 5-inch full-color touchscreen provides convenient instrument operation.
The analyzer supports both cuvette and colorimetric tube measurement methods. It stores up to 100 calibration curves, including 15 standard curves and 85 user-expandable curves, allowing flexible application across different water samples and wastewater conditions. With an internal printer, large data storage capacity, and optional computer connectivity, the SH-320A is suitable for routine water quality analysis in laboratories and industrial environments.

Performance Features
• Multi-parameter testing: Measures COD, ammonia nitrogen, total phosphorus, pH, and dissolved oxygen.
• Dual colorimetric methods: Compatible with both cuvettes and colorimetric tubes.
• Flexible calibration: Stores 100 curves, including 15 standard curves and 85 expandable curves.
• Touchscreen operation: Features a 5-inch full-color touchscreen and one-touch selection of measurement items.
• Long-life light source: Uses a cold light source and narrow-band interference technology, with a stated service life of up to 100,000 hours.
• Stable optical measurement: Rear-mounted spectrophotometric design helps reduce interference from external light.
• Intelligent digestion: Automatically adjusts digestion power according to the number of samples, with intelligent temperature control and delay protection.
• Adjustable digestion settings: Temperature and time can be configured and saved.
• Data management: Stores up to 5 million data records and includes a built-in printer for current and historical results.
• Optional PC connection: USB interface supports computer-based operation and automatic chart generation (optional).

Working Principle
The SH-320A uses spectrophotometric colorimetry to measure color-forming reactions in prepared water samples. Its cold light source emits light across the 400–750 nm wavelength range. After passing through the sample, the transmitted light is measured by the optical system, and the instrument calculates the corresponding concentration using stored calibration curves.
For COD, ammonia nitrogen, and total phosphorus analysis, samples can undergo digestion or chemical pretreatment according to the selected method. The integrated digestion system provides adjustable temperature and time settings, with specified digestion conditions of 165°C or 123°C and digestion periods of 10 or 30 minutes.
The pH and dissolved oxygen parameters are measured within their respective measurement ranges. Results can be displayed, stored, printed, or transferred to a computer when the optional software is configured.

Technical Parameters

Parameter	Specification
Model	SH-320A
Measurement Parameters	COD, ammonia nitrogen, total phosphorus, pH, DO
Display	5-inch full-color touchscreen
COD Range	5–50 mg/L; 30–6,000 mg/L (segmented ranges)
Ammonia Nitrogen Range	0.01–100 mg/L (segmented ranges)
Total Phosphorus Range	0.001–8 mg/L (segmented ranges)
pH Range	0–14 pH
DO Range	0–20 mg/L
Measurement Accuracy	≤±5%
pH Accuracy	±0.02
DO Accuracy	±0.3 mg/L
Wavelength Range	400–750 nm
Calibration Curves	100 (15 standard curves and 85 expandable curves)
Data Storage	Up to 5 million records
Repeatability	≤±5%
Batch Processing Capacity	6, 9, 12, 16, 20, 24, 25, 30, 35, or 56 samples per batch
Colorimetric Methods	Cuvette and colorimetric tube
Chloride Interference Resistance	Cl⁻ <1,200 mg/L; Cl⁻ <4,000 mg/L
Light Source Service Life	Up to 100,000 hours
Optical Stability	≤0.001 A/10 min
Temperature Control Range	Ambient temperature to 200°C
Digestion Temperature	165°C / 123°C ±0.5°C
Digestion Time	10 / 30 minutes
Dimensions (L × W × H)	400 × 300 × 180 mm
Power Supply	AC 220 V ±10%, 50 Hz
Weight	5 kg

Application Scenarios
• Environmental monitoring: Routine testing of surface water, groundwater, and wastewater.
• Wastewater treatment plants: Monitoring COD, ammonia nitrogen, and total phosphorus.
• Industrial laboratories: Water quality testing in chemical, steel, pharmaceutical, textile, printing and dyeing, and electroplating industries.
• Food and beverage production: Monitoring process water and wastewater quality.
• Research institutions: Laboratory analysis and water quality research.
• Third-party testing laboratories: Multi-parameter water sample analysis.
• Municipal and agricultural applications: Water quality assessment in municipal services and aquaculture.

Comparison: Multi-Parameter vs. Single-Parameter Water Quality Instruments

Feature	SH-320A Multi-Parameter Analyzer	Single-Parameter Analyzer
Measurement Items	COD, ammonia nitrogen, total phosphorus, pH, and DO	Typically one parameter
Calibration Curves	Stores up to 100 curves	Depends on instrument
Colorimetric Methods	Cuvette and colorimetric tube	Depends on instrument
Digestion Function	Integrated adjustable digestion system	Depends on model
Data Storage	Up to 5 million records	Depends on model
Data Output	Built-in printer and optional USB computer connection	Depends on model
Typical Use	Multi-parameter water quality testing	Dedicated measurement of a specific parameter

Frequently Asked Questions
1. Which water quality parameters can the SH-320A measure?
It measures five parameters: COD, ammonia nitrogen, total phosphorus, pH, and dissolved oxygen (DO).
2. What is the COD measurement range?
The specified COD ranges are 5–50 mg/L and 30–6,000 mg/L, using segmented measurement ranges.
3. Can the SH-320A measure both cuvettes and colorimetric tubes?
Yes. It supports both measurement methods, providing flexibility for different sample preparation and testing requirements.
4. How many calibration curves can the instrument store?
It can store 100 curves, comprising 15 standard curves and 85 expandable curves.
5. Does the analyzer include a digestion function?
Yes. It features an integrated digestion system with adjustable temperature and time settings. The specified digestion temperatures are 123°C and 165°C ±0.5°C, with 10- or 30-minute digestion periods.
6. How much measurement data can be stored?
The instrument supports storage of up to 5 million data records. Its built-in printer can print current measurements and retrieve historical data for printing.
7. Can the SH-320A connect to a computer?
Yes. It has a USB interface, and optional computer software supports data management and automatic chart generation.
8. What industries can use the SH-320A?
It is suitable for environmental monitoring, wastewater treatment, chemical and pharmaceutical manufacturing, steel production, food processing, textiles, electroplating, aquaculture, municipal services, and research laboratories.

Frequently Asked Questions
1. Which water quality parameters can the SH-320A measure?
It measures five parameters: COD, ammonia nitrogen, total phosphorus, pH, and dissolved oxygen (DO).
2. What is the COD measurement range?
The specified COD ranges are 5–50 mg/L and 30–6,000 mg/L, using segmented measurement ranges.
3. Can the SH-320A measure both cuvettes and colorimetric tubes?
Yes. It supports both measurement methods, providing flexibility for different sample preparation and testing requirements.
4. How many calibration curves can the instrument store?
It can store 100 curves, comprising 15 standard curves and 85 expandable curves.
5. Does the analyzer include a digestion function?
Yes. It features an integrated digestion system with adjustable temperature and time settings. The specified digestion temperatures are 123°C and 165°C ±0.5°C, with 10- or 30-minute digestion periods.
6. How much measurement data can be stored?
The instrument supports storage of up to 5 million data records. Its built-in printer can print current measurements and retrieve historical data for printing.
7. Can the SH-320A connect to a computer?
Yes. It has a USB interface, and optional computer software supports data management and automatic chart generation.
8. What industries can use the SH-320A?
It is suitable for environmental monitoring, wastewater treatment, chemical and pharmaceutical manufacturing, steel production, food processing, textiles, electroplating, aquaculture, municipal services, and research laboratories.