HKC Group
The customer purchased the VicoMeter WKT-C9 and WKT-A9 automatic Karl Fischer moisture analyzers together with the WKT-V1 Karl Fischer oven, capable of testing the moisture content of the vast majority of samples on the market. The WKT-A9 "Exquisite" Karl Fischer trace moisture analyzer uses the coulometric Karl Fischer principle to rapidly determine trace moisture down to 0.001 ppm, while the WKT-C9 "Fully Automatic" Karl Fischer moisture analyzer uses the volumetric Karl Fischer principle to rapidly determine moisture down to 10 ppm.
The VicoMeter WKT-C9 fully automatic Karl Fischer moisture analyzer uses the volumetric Karl Fischer principle to rapidly determine moisture down to 10 ppm, measuring solids, liquids, and powders within 30 seconds. Its built-in RS232 port connects printers, balances, computers, and other peripherals, and it stores 200 data sets with real-time query. A further upgrade of the Victor smart-series moisture analyzer, the C9 delivers a higher level of automation and precision. It complies with multiple national and international moisture standards as well as pharmacopoeia requirements and is widely used in chemicals, petroleum, pharmaceuticals, power, food, batteries, plastics, research, and testing.
Coulometric (coulometry) principle, ideal for trace-level testing; 5-inch color touchscreen with smart operation, automatic result calculation, and freely configurable sample IDs; complies with multiple national standards and suits virtually every industry.
8 moisture calculation formulas, 6 determination methods, and 8 end-point detection algorithms
Automatic drift compensation, automatic subtraction of ambient and background moisture, and self-diagnostic fault alerts
One-touch start for reliable results
Outstanding automation — connects seamlessly to the Karl Fischer oven for difficult samples
RS232 interface for connection to a PC, printer, PLC, or LIMS
When measuring moisture with a Karl Fischer analyzer, most samples can be added directly to the generator cell/titration cell for simple, accurate testing. Some samples, however, cannot be added directly because their moisture is not released naturally or they undergo side reactions with the Karl Fischer reagent — for example powders, granules, pastes, and oxidizing inorganic salts.
For samples that cannot be added directly to the cell, pairing the WKT-V2 Karl Fischer oven for gas-phase extraction is the perfect solution. The sample is placed in a vial and moved onto the oven, heated to a specific temperature (up to 300˚C), and the moisture is extracted and carried into the cell by dry air or nitrogen, then measured perfectly.
It was already afternoon when the VicoMeter technical engineer arrived at the customer's site, so he decided to inspect the site first and install the next day. On site, he found that the customer did not use bottled nitrogen but a plant-wide nitrogen pipeline. Installing the Karl Fischer oven requires a 1/8" fitting, but the customer provided a 1/4" fitting. The engineer informed the customer, who promptly arranged the correction.
The next day, the VicoMeter engineer went straight to installation. With many instruments to install, the work took two days. After installation, the engineer tested the instruments with samples and found that the WKT-A9 and WKT-C9 each measured accurate moisture values individually, but results were inaccurate when paired with the Karl Fischer oven. The cause turned out to be substandard nitrogen purity: when a Karl Fischer moisture analyzer is used with an oven, nitrogen purity requirements are very high, and insufficient purity seriously affects testing.
HKC Group started in display manufacturing in 1997. From an obscure small factory, it rose to become a top-three domestic display maker within three years thanks to advanced technology and solid quality. Building on that platform, HKC entered the power supply field and became a top-three domestic PC power supply maker in four years. With a pioneering, forward-looking entrepreneurial spirit, HKC has continued to expand into chassis, speakers and color TVs, achieving industry-leading positions in each.
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