Coulometric (coulometry) principle; 5.7-inch display with keypad operation and automatic calculation; measuring range 1 ppm–100%; 200 automatically stored results with history query at any time; complies with multiple national standards and suits virtually every industry.
5 moisture determination methods to cover your everyday sample testing
Dual-CPU data processing design for stable, precise computation
Instrument status, error, and fault self-check functions help users handle unexpected situations
Overview
Technical Specifications
| Model | WKT-A3 |
| Measuring Principle | Karl Fischercoulometric（coulometric） |
| Measurement Speed | 34 μg H2O/s (max) |
| Measuring Range | 1 μg H2O to 200 mg H2O |
| Measurement Accuracy | Error ≤ ±1 μg for water content below 10 μg; error ≤ ±1 μg for 10–1000 μg water (injection error excluded); standard deviation ≤ 0.2% |
| Resolution | 0.1μg H2O |
| Water Content (Concentration Range) | 0-100% |
| Electrolysis Current | 0–400 mA adjustable |
| Moisture Concentration Resolution | 0.001 |
| Water Content (Concentration Range) | 1ppm-10000ppm（0.0001%-1%） |
| Stirring Speed | Stepless knob adjustment |
| Drift/Blank Subtraction | Automatic subtraction |
| Special Functions | Automatic drift compensation, reagent expiry alert, user-defined determination parameters, and self-diagnostic fault alerts |
| Display & Operation | 5.7-inch LCD with keypad operation |
| Sample ID | Freely configurable sample IDs |
| Stored Records | 200 records |
| Printing | Built-in low-power high-speed thermal printer, 56 mm paper width |
| Printout | Displays different content according to the user's measurement formulas and results |
| Calendar/Clock | Current time, date, and test time/date displayed and printed |
| Endpoint Indication | Screen prompt / printout / audible alarm / end-point lamp |
| Operating Environment | Temperature 2 ℃–50 ℃, humidity <90% |
| Power Consumption | ≤50W |
| Unit Dimensions | 360mm*265mm*50mm |
| Power Supply | 220V 50HZ 150W |
| Weight | Main unit net weight 5 kg |
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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