• W3130 Zinc On-Line Analyzer
W3130 Zinc On-Line Analyzer
W3130 Zinc On-Line Analyzer
• Based on a 24-bit high-resolution A/D converter
• Automatic sampling analysis and auto-calibration
• Measuring cycle time adjustable
• Wet chemistry analysis with Cuprizone method

• Quantitative syringe pump to dose small volumes of fluid extremely accurately
• Sampling valve can resist high temperature, corrosion, acid and alkaline
• Self-diagnosis & friendly calibration setting
• User-friendly graphical interface
• Highly stable and accurate with a wide measuring range
• 7” LCD color touch panel display
• Reagents free and cost-saving
• Language support in English and Chinese
• Automatic data storage with capacity up to 5000 historical records.
(User could expend memory by using 32GB/64GB flash disk.)
• Predicting alarm for shortage of chemical reagents


Zinc has a silver-white appearance and is mainly used for galvanizing. It plays an important role in battery manufacturing in modern industry. Also, another typical appilcation is "galvanized iron sheet", which is widely used in automobiles, electric power, electronics and construction. The presence of zinc ions cannot be distinguished by the naked eye, so the detection should rely on analytical instruments. Chemmit W3130 Zinc Analyzer is designed for industries, especially the electroplating industry and the metal processing industry, which produces enormous amount of zinc in effluent water. This analyzer uses Zinlon method to determine the concentration of zinc in the solution. It offers a fast, cheap and clean analysis, with fully automatic calibration and user adjustable reaction time and analysis cycle. This Analyzer is self-monitoring, ensuring the wastewater follows the EPA standard all the time.

Application Principle

This analyzer uses Zinlon method to determine the concentration of zinc in the solution. The Zinc ion reacts with Zinlon producing a yellow or orange substance, and it use specific wavelength to monitor the concentration based on absorbance. The reaction rate is quite rapid at room temperatures, so buffers must be used to maintain the analytical liquid between pH 8.5 and 9.5. Analytical samples and medicaments are quantitatively extracted by automatic pump. It can accurately control the dosing ratio. Programmatic control and reaction time settings, combined with specific wavelength LED monitoring, can accurately detect the Zinc concentration in the water.
General Specifications
Function Wet Chemistry Analyzer for Measurement of Concentration of Zinc in Water, following the Colorimetric Detection via Zinlon Method.
Model W3130
Installation Freestanding Type
Protection Class IP65
Dimensions H1250* W550* D430mm
Range 0-1mg/L , 0-5mg/L (Option up to 0-50mg/L)
Accuracy F.S ±3 %
Repeatability F.S ±3 %
Optical Module Special LED, dual beams, auto gaining design, 24-bit high-resolution A/D converter, long life span, auto compensation of light intensity, and with system automatic light source abnormal judgment
Response Time 35 minutes per measurement
Measuring Cycle Time User selectable 0 to 1,000 minutes per measuring cycle
Auto Cleaning User selectable 1 to 3 times. Every time lasts for 15 minutes
Auto Calibration Automatic calibration. Can switch to manual calibration, high- and low- point
Shutdown Alarm • Concentration abnormal alarm (adjustable of high-point)
• System error alarm
Display 7” LCD color touch panel display
Self-Diagnosis The system is continuously self-diagnosis. The error management helps to identify problems. (Display errors and save historical data)
Electrical Conditions Power supply ranges:115 / 230 VAC, 50 / 60 Hz,<500 Watt
Certification CE Mark (Certificate No. 3X180605.KSIUN08)
Language Support Chinese, English
Sample Conditions • Sample temperature: 0 to 45 °C
• Sample flow: Continuous, 50 to 1,000 ml/min
• Sample consumption: 10ml/ analysis nominal
• Sample connection: use external pump connect with 4.75mm Teflon tube
• Suspended solids: 200 microns or less
• Ambient operating temperature: 0 – 60 °C 
• Ambient operating humidity: Up to 95 % RH non-condensing
Analog Outputs 1x isolated current output, 4-20mA range. With option of RS485
Relay Outputs 1x alarm reply. With the option of extending up to 4 fully user-assignable relays
Data Storage Automatic data storage with capacity up to 5000 historical records. (User could expend memory by using 32GB/64GB flash disk.)