VicoMeter On-site Training

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Customer Profile

Jiangsu Yawei Transformer Co., Ltd. first purchased the VicoMeter WKT-A5, later switching to the latest WKT-A9 Karl Fischer moisture analyzer (coulometric) due to site conditions. Using the coulometric Karl Fischer principle, the WKT-A9 rapidly determines trace moisture down to 0.001 ppm in solids, liquids and powders within one minute. The instrument features built-in printing, storage for 500 data sets, and real-time query and printing. Innovative guided prompts and a built-in electronic manual make operation simple. Compliant with multiple national and international moisture determination standards, the WKT-A9 includes eight moisture calculation formulas and six measurement methods for all industries, and is widely used in chemical, petroleum, pharmaceutical, power, food, research and testing sectors—a Karl Fischer moisture analyzer for mid-to-high-end applications.

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
  

WKT-A5 Karl Fischer Trace Moisture Analyzer Coulometric

WKT-A5 Karl Fischer Trace Moisture Analyzer Coulometric

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
  

VicoMeter at the Customer Site

Upon arrival, the VicoMeter engineer checked the WKT-A5's accessories with the customer; nothing was missing or damaged, and installation and commissioning went smoothly. However, pure-water verification showed poor repeatability and inaccurate values. After the engineer sent site photos and details to our technical department, the team concluded that the site was too humid for the WKT-A5, whose ambient-moisture compensation could not cope: there was standing water on the floor and visible dampness on benches, and the customer was measuring moisture in oil at only around 10 ppm. Such high humidity combined with such low moisture required the WKT-A9. After the situation was explained, the customer switched instruments, and subsequent measurements with the WKT-A9 were stable and repeatable.

Measurement accuracy depends not only on the instrument but also on the environment and human factors. Achieving high precision in a poor environment requires a more capable instrument.

Customer Profile

Jiangsu Yawei Transformer

(Click image to enlarge)

Jiangsu Yawei Transformer

Jiangsu Yawei Transformer Co., Ltd., founded in March 1992, has achieved leapfrog development through more than a decade of hard work. Today it is a mid-size transformer manufacturer with over 50 engineering technicians, more than 500 employees, 120,000 m² of floor space and annual sales of RMB 600 million. Honors include Jiangsu Quality-Trustworthy Enterprise, Nantong High-Tech Enterprise, Nantong Advanced Collective for quality, metrology, equipment, environmental protection and contract compliance, Nantong Civilized Unit, and Hai'an County Industrial Growth Enterprise. The company has strong production capacity and an efficient marketing team. Its products include 110 kV and 220 kV large EHV power transformers and, below 35 kV, dry-type, oil-immersed and amorphous alloy transformers, prefabricated substations, and special transformers such as box-type, furnace, rectifier and mining transformers. All products have passed routine, type and special tests by the National Transformer Quality Supervision and Inspection Center and the Wuhan High Voltage Research Institute of the State Grid.