The VM-S550Zn Zinc Analyzer (Heavy Metals) is a professional water quality testing instrument designed and manufactured by VicoMeter specifically for industrial wastewater testing. Developed in accordance with the xylenol orange method (an EPA-recognized method), it rapidly determines zinc content in industrial wastewater with stable and reliable results, making it a trusted assistant for industrial wastewater testing.
The VM-S550Zn Zinc Analyzer integrates VicoMeter's proven water quality analysis technologies into a more complete analysis system. Its multi-channel design, integrated digestion-and-colorimetry tube, mature colorimetric technology, and stable system combined with proprietary algorithms make operation simpler, testing faster, and results more stable and reliable.
VicoMeter is an expert in analysis and testing, providing fast, targeted industry solutions for different users.
Product Details
VM-S550Zn Total Zinc (Zinc Ion) Analyzer
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The VM-S550Zn Zinc Analyzer (Heavy Metals) is a professional water quality testing instrument designed and manufactured by VicoMeter specifically for industrial wastewater testing. Developed in accordance with the xylenol orange method (an EPA-recognized method), it rapidly determines zinc content in industrial wastewater with stable and reliable results, making it a trusted assistant for industrial wastewater testing.
The VM-S550Zn Zinc Analyzer integrates VicoMeter's proven water quality analysis technologies into a more complete analysis system. Its multi-channel design, integrated digestion-and-colorimetry tube, mature colorimetric technology, and stable system combined with proprietary algorithms make operation simpler, testing faster, and results more stable and reliable.
VicoMeter is an expert in analysis and testing, providing fast, targeted industry solutions for different users.
This instrument is widely used in emergency monitoring, industrial wastewater, domestic sewage, wastewater treatment, pharmaceuticals and chemicals, food, beverages, textile printing and dyeing, electroplating, papermaking, petroleum and metallurgy, river treatment, research institutes, universities, and other fields.
The interactive human-machine interface features prompt functions that indicate the next step, intelligently guiding users through the operation with direct readout of test results.
For each data set, the instrument measures the water sample 10 times, removes outliers, and averages the results to reduce measurement error, while flagging any abnormal results.
Mature colorimetric technology and a stable system combined with proprietary algorithms minimize the impact of dirty, scratched, or flawed glass tubes (including fingerprints) on results. Paired with VicoMeter's dedicated integrated digestion-colorimetric tubes, stability is no longer a challenge.
Equipped with one Ethernet port, one USB port, and one MiZn USB interface for easy connection to a PC for data upload; data can also be uploaded over the LAN via the Ethernet interface, facilitating routine water quality management and analysis and providing data support for the stable operation of wastewater treatment;
The favorite programs function lets users add frequently used test programs to their user programs for quick access, avoiding the inefficiency of searching through program lists.
Built-in fast measurement and stable measurement modes allow users to freely choose between speed and accuracy.
The instrument features printing and data storage, allowing instant printing of results or retrieval and printing of historical records. With built-in storage for 30,000 sets of historical test data readily accessible at any time, data can also be uploaded to a PC for unlimited permanent storage.
VicoMeter's integrated digestion-colorimetric tubes work seamlessly with the rapid water quality analyzer and are compatible with φ16 mm and φ25 mm cuvettes.
● Testing complies with national, industry, or international standards.
● Built-in standard test programs, expandable later, including but not limited to the following parameters
- COD (Chemical Oxygen Demand)
- CODmn (Permanganate Index)
- Ammonia Nitrogen (NH3-N)
- Total Phosphorus (TP)（TP）
- Total Nitrogen (TN)（TN）
- Turbidity (NTU)
- Total Chromium (TCr)
- Hexavalent Chromium（Cr 6+）
- Copper (Cu)
- Nickel (Ni)
- Zinc (Zn)
- Iron (Fe)
……
VM-S550Zn Working Principle Diagram
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1. Multi-Channel Light Source System
The multi-channel light source system uses fixed wavelengths, eliminating the need for wavelength adjustment, with no mutual interference between light sources.
2. Integrated Digestion-Colorimetric Tube
Digestion and reading share a single tube, eliminating the need to transfer liquid into a cuvette for measurement—simple, safe, and worry-free.
3. Interference Elimination
Excellent tube uniformity and light transmittance minimize the impact of dirty, scratched, or flawed glass tubes (including fingerprints) on results.
4. Ten Measurements with Outlier Removal
Each data set is measured 10 times; after outliers are removed, the result is calculated using a dedicated algorithm to reduce measurement error.
5. Data Analysis
Sample concentration values are displayed directly, with prompts for abnormal results. Test results can be printed or stored.
6. Data Processing
Data can be uploaded to a computer via USB or LAN, facilitating daily management and analysis and providing data support for the stable operation of wastewater treatment;
WKT-30S Dual-Temperature-Zone Intelligent Digestion Unit
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The WKT-30S multi-parameter dual-temperature-zone intelligent digestion unit is a water pollutant digestion device designed by VicoMeter specifically for enterprise pollution sources. Users can operate one or both digestion modules independently; the temperature zones are controlled separately without mutual interference, allowing simultaneous digestion of COD, total phosphorus, total nitrogen, total chromium, and other parameters. This solves the challenge of differing digestion temperatures and times across parameters and more than doubles water sample testing efficiency. The instrument includes built-in standard digestion modes for COD, total phosphorus, total nitrogen, and total chromium—no user setup required, just one-touch start. A custom mode also lets users freely set digestion temperature and time as needed, truly delivering multi-functionality in one unit.
1. Standard 30-position dual-zone digestion unit; optional 16- or 25-position digestion units are available to better meet user needs.
2. Intelligent PID temperature control and dual over-temperature protection deliver safe, uniform, and fast heating.
3. Built-in standard digestion programs with one-touch design—simply press OK to complete the entire digestion process.
4. Custom mode support allows freely setting digestion temperature and time for one-touch digestion in the desired mode.
5. Suitable for the digestion of COD, total phosphorus, total nitrogen, total chromium, and other parameters.
Technical Specifications
| Measured Parameters | Zinc (Zn) |
| Measuring Range | 0-15mg/L |
| Detection Limit | 0.05mg/L |
| Digestion Conditions | No Digestion Required |
| Measurement Error | ≤±5％ |
| Repeatability | ≤±5% |
| Optical Stability | ≤±0.001A/20 min (100,000-hour service life) |
| Colorimetric Method | Colorimetric tube (digestion & colorimetry combined) |
| Data Processing | 30,000 records and 96 curves (supports user-defined calibration) |
| Data Transfer | USB cable, LAN, etc. |
| Printer | Built-in thermal printer |
| User Interface | Chinese/English (optional) |
| Power Supply | AC(220V±10%)，50Hz |
| Display | 5-inch color LCD |
| Power | 5W |
| Ambient Temperature | 5~40℃ |
| Ambient Humidity | ≤85%, non-condensing |
| Unit Dimensions | 348mm*250mm*145mm |
| Instrument Weight | Main unit < 2.6 kg; digestion unit: 6 kg |
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