VicoMeter On-site Training

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Customer Profile

Zhejiang Donghai New Materials purchased the VicoMeter WKT-A9 Precision Karl Fischer moisture analyzer. Working on the coulometric Karl Fischer principle, the WKT-A9 quickly measures the moisture content of liquids, solids, and gases and is widely used in chemicals, pharmaceuticals, plastics, food, lithium batteries, testing, petroleum, power, pesticides, and academic research.

WKT-A9 Karl Fischer Trace Moisture Analyzer Coulometric

WKT-A9 Karl Fischer Trace Moisture Analyzer Coulometric

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
  

VicoMeter at the Customer Site

Zhejiang Donghai New Material purchased the VicoMeter WKT-A9 Precision Karl Fischer moisture analyzer mainly to test the moisture content of chemical raw materials at each process stage, so the instrument is used frequently and the moisture content varies constantly. After arriving at the customer's site, the VicoMeter technical engineer first unpacked the instrument together with the customer and checked the instrument's accessories, which were complete.

The VicoMeter engineer then carried out the standard installation procedure. After installation, the instrument was first verified with pure water, then tested with the customer's samples. Since even the customer did not know the samples' moisture content, the engineer injected a small amount with a 1 mL syringe; the instant the sample touched the reagent, the reagent turned pale yellow, indicating very high water content. The engineer immediately stopped the injection, removed the syringe, weighed the injected sample, entered the mass into the instrument, and waited nearly ten minutes for the reaction to finish — the moisture result was 3.7%, and repeated measurements all came out around 3.7%.

About an hour later, a freshly drawn sample measured roughly 3000 ppm, and a third sample taken about three hours after that measured roughly 300 ppm. Because the customer's testing runs alongside production, each batch involves about 50 samples and the instrument stays busy, which is hard on the electrodes. On the engineer's recommendation, the customer bought an additional electrode set and titration cell to use in rotation, reducing the load on the electrodes.

Customer Profile

Zhejiang Donghai New Materials

(Click image to enlarge)

Zhejiang Donghai New Materials

Zhejiang Donghai New Materials Technology Co., Ltd. was established on October 12, 2004, with Chen Apan as its legal representative. Its business scope covers R&D of new chemical materials; R&D and sales of methyl oxyphenylacetate and ethyl oxyphenylacetate; production of hydrochloric acid (by-product, per the safety production license); sales of composite antioxidants; and the manufacture and processing of sulfuric acid (by-product, 13%–17% only), pigments, dyes, dye intermediates, ammonium sulfate, esters, aqueous color pastes, coating color pastes, base inks, and masterbatches (excluding hazardous chemicals and drug precursors, as listed above), plus import and export trade.