Coulometric (coulometry) principle, ideal for trace moisture testing; 5-inch touchscreen operation, automatic calculation, 300 automatically stored results with history query at any time; complies with multiple national standards and suits virtually every industry.
2 built-in moisture calculation formulas
One-touch start for reliable results
Multiple end-point indicators: screen display, printout, audible alarm, and end-point lamp
Overview
Technical Specifications
| Model | WKT-A5 |
| Measuring Principle | Karl Fischercoulometric（coulometric） |
| Electrolysis Rate | 2.4 mg water/min |
| Electrolysis Current | 0–430 mA automatic control |
| Display Measuring Range | 0.01 μg H2O–200 mg H2O |
| Water Content Range | 0.0001%（1ppm）—100% |
| Sensitivity | 0.01 μg H2O |
| Accuracy | Error ≤ ±3 μg for water content of 100–1000 μg |
| Display | Bilingual (Chinese/English) touchscreen LCD |
| Blank Handling | Blank current automatically compensated by the microprocessor, ensuring accurate blank subtraction during the 10-minute sample enrichment period |
| Drift Compensation | Microprocessor automatic control |
| Stirring Speed | Adjustable control |
| Endpoint Indication | Screen display / printout / audible alarm / end-point lamp |
| Data Input | Touchscreen input |
| Sample ID | Freely configurable sample IDs |
| Stored Records | 300 records |
| Printing | Built-in low-power high-speed thermal printer, 56 mm paper width |
| Printout | μg/ppm/mg/L / sample ID / operator / date |
| Calendar/Clock | Current time, date, and test time/date displayed and printed |
| Power Consumption | Under 40 W |
| Operating Environment | Temperature 5 ℃–40 ℃, humidity <85% |
| Unit Dimensions | 309×302×175mm |
| Power Supply | AC220V±10% 50HZ±2.5HZ |
Applicable Industries
| Liquid | Chemical industry: alcohols, ethers, acids, benzenes, phenols, organic solvents, and other products suited to Karl Fischer determination. Petroleum and power: insulating oil, transformer oil, and other oils. Pharmaceutical industry: pharmaceutical raw materials, etc. Pesticide industry: emulsifiers, etc. Other industries: lithium battery electrolytes, etc. |
| Solid | Freely soluble solids such as various inorganic salts and citric acid |
| Gas | Gases such as nitrogen, SF6, natural gas, liquefied petroleum gas, Freon, and butadiene |
The following industries require a Karl Fischer oven | |
| Insoluble Solids | Lithium batteries, plastics, medical, ceramic powders, metal powders, etc. |
| Other Insoluble Solids | Insoluble solids, easily contaminated and cross-contaminating samples (lubricating greases, aldehydes and ketones), samples that react with Karl Fischer reagent, and samples with slow moisture release |
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