5B-3B(V8) Intelligent Multi-Parameter Water Quality Analyzer
Product Introduction
The 5B-3B(V8) Intelligent Multi-Parameter Water Quality Analyzer is designed for efficient water quality testing across four key parameters: chemical oxygen demand (COD), ammonia nitrogen, total phosphorus, and turbidity. It combines multiple measurement functions in one instrument, enabling users to obtain direct readings and manage test data through a large color LCD.
With automatic calibration curve generation, 219 built-in curves, intelligent temperature control for digestion, and storage for up to 12,000 measurement records, the 5B-3B(V8) supports streamlined water quality analysis in laboratories, environmental monitoring departments, wastewater treatment facilities, and industrial applications.
Performance Features
• Multi-Parameter Measurement: Measures COD, ammonia nitrogen, total phosphorus, and turbidity using one integrated analyzer.
• Large Color LCD: Displays measurement results on a 320 × 240-resolution color screen for convenient operation and data review.
• Automatic Calibration Curves: Calculates and stores calibration curves using standard samples, reducing the need for manual curve creation.
• 219 Built-In Curves: Includes 166 standard curves and 53 regression curves, which can be selected according to testing requirements.
• Large Data Storage Capacity: Stores up to 12,000 measurement records, including test dates, times, instrument parameters, and results.
• Convenient Data Transfer: Supports USB communication and optional infrared wireless transmission for transferring current and historical data to a computer.
• Intelligent Digestion Temperature Control: Automatically adjusts digestion power according to the load and provides delayed protection.
• Professional Reagent Support: Supplied with professional consumable reagents to simplify testing procedures and help improve measurement consistency.
• Flexible Batch Testing: Supports different sample batch capacities depending on the selected measurement parameter.
Working Principle
The 5B-3B(V8) uses parameter-specific analytical methods to measure water quality. COD, ammonia nitrogen, and total phosphorus are measured using colorimetric analysis with compatible colorimetric tubes or cuvettes. Turbidity is measured using a cuvette-based optical method.
For parameters requiring digestion, the instrument works with a digestion process supported by intelligent temperature control. After sample preparation and reaction, the analyzer evaluates the analytical signal, calculates the concentration using the selected calibration curve, and displays the result. Measurement data can then be stored internally or transferred to a computer for further analysis and reporting.
Technical Parameters
|
Parameter |
COD |
Ammonia Nitrogen |
Total Phosphorus |
Turbidity |
|
Measuring Range |
2–10,000 mg/L, segmented |
0.02–100 mg/L, segmented |
0.002–5 mg/L, segmented |
0.5–400 NTU |
|
Measurement Accuracy |
≤±10% below 50 mg/L; ≤±5% above 50 mg/L |
≤±10% |
≤±5% |
≤±5% |
|
Minimum Detection Limit |
0.1 mg/L |
0.01 mg/L |
0.001 mg/L |
0.1 NTU |
|
Measurement Time |
20 min |
10–15 min |
35–50 min |
1 min |
|
Batch Capacity |
16 samples |
20 samples, expandable |
16 samples |
Unlimited, according to the supplied specifications |
|
Repeatability |
≤±5% |
≤±5% |
≤±5% |
≤±5% |
|
Colorimetric Cell |
Colorimetric tube or cuvette |
Colorimetric tube or cuvette |
Colorimetric tube or cuvette |
Cuvette |
|
Chloride Interference Resistance |
Specified limits: below 1,000 mg/L and below 4,000 mg/L; confirm applicable test conditions with the manufacturer |
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General Specifications
|
Item |
Specification |
|
Equipment Name |
Multi-Parameter Water Quality Analyzer |
|
Model |
5B-3B(V8) |
|
Data Storage |
12,000 measurement records |
|
Built-In Calibration Curves |
219 total: 166 standard curves and 53 regression curves |
|
Display |
Color LCD, 320 × 240 resolution |
|
Communication Interface |
USB; infrared transmission optional |
|
Power Supply |
220 V AC |
|
COD Light Source Life |
100,000 hours, as specified |
|
Ammonia Nitrogen Optical Stability |
Optically stable, as specified |
|
Total Phosphorus Optical Stability |
≤±0.005 A over 20 minutes, as specified |
Note: The supplied source lists optical stability details under the parameter columns. Confirm the exact parameter-to-specification mapping with the manufacturer before publishing formal technical documentation.
Application Scenarios
• Environmental Monitoring: Routine analysis of surface water, groundwater, and other environmental water samples.
• Wastewater Treatment Plants: Monitoring COD, ammonia nitrogen, total phosphorus, and turbidity during treatment processes.
• Industrial Wastewater Testing: Supporting water quality checks in manufacturing and industrial discharge management.
• Laboratories: Multi-parameter testing for environmental research, sample analysis, and water quality assessment.
• Municipal Water Management: Supporting water quality monitoring and process evaluation where the selected measurement ranges are suitable.
• Educational and Research Institutions: Conducting water analysis experiments and laboratory testing.
5B-3B(V8) vs. Single-Parameter Water Quality Instruments
|
Comparison Item |
5B-3B(V8) Multi-Parameter Analyzer |
Single-Parameter Instruments |
|
Measurement Capability |
COD, ammonia nitrogen, total phosphorus, and turbidity |
Usually dedicated to one parameter |
|
Calibration Management |
219 built-in curves with automatic curve calculation and storage |
Depends on the individual instrument |
|
Data Storage |
Up to 12,000 records |
Varies by model |
|
Data Transfer |
USB; optional infrared transmission |
Depends on model and interface |
|
Workflow |
Consolidates multiple analytical functions in one system |
May require separate instruments for different parameters |
|
Batch Testing |
Parameter-specific batch capacities |
Depends on the instrument |
|
Typical Use |
Multi-parameter laboratory and water quality testing |
Dedicated testing or specialized applications |
Frequently Asked Questions
1. What parameters can the 5B-3B(V8) measure?
It measures chemical oxygen demand (COD), ammonia nitrogen, total phosphorus, and turbidity.
2. What is the measuring range for COD?
The COD range is 2–10,000 mg/L, using segmented measurement ranges.
3. How many calibration curves are built into the analyzer?
The instrument stores 219 curves, including 166 standard curves and 53 regression curves.
4. Can the analyzer transfer test data to a computer?
Yes. It supports USB data transfer, while infrared wireless transmission is available as an optional function.
5. How much measurement data can the instrument store?
It can store up to 12,000 records, including the test date, detection time, instrument parameters, and measurement results.
6. How long does each measurement take?
The specified measurement times are 20 minutes for COD, 10–15 minutes for ammonia nitrogen, 35–50 minutes for total phosphorus, and approximately 1 minute for turbidity. Actual total workflow time may depend on sample preparation and digestion requirements.
7. Does the 5B-3B(V8) support batch testing?
Yes. The specified batch capacities are 16 samples for COD, 20 samples for ammonia nitrogen with expansion available, and 16 samples for total phosphorus. Turbidity capacity is listed as unlimited in the supplied specifications.
8. What display and power supply does it use?
It features a 320 × 240 color LCD and operates on a 220 V AC power supply.
9. Does the instrument automatically generate calibration curves?
Yes. It can calculate and store curves based on standard samples, reducing the need for users to create calibration curves manually.
10. Is the 5B-3B(V8) suitable for wastewater testing?
It can support wastewater monitoring and treatment-process analysis when the target parameters and concentrations fall within the instrument's specified measurement ranges.










