VicoMeter On-site Training

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Customer Profile

Zhejiang Xinjin Air Conditioning Equipment purchased the VicoMeter WKT-A9 Precision Karl Fischer moisture analyzer. The VicoMeter WKT-A9 Precision Karl Fischer trace moisture analyzer uses the coulometric Karl Fischer (coulometry) principle to rapidly measure trace moisture in samples, detecting water down to 0.001 ppm and determining trace moisture in solids, liquids, and powders within one minute. The built-in printer and storage for 500 data sets allow real-time query and printout. Innovative guided prompts and a built-in e-manual make operation simple. The WKT-A9 complies with multiple national and international moisture standards and provides eight built-in moisture calculation formulas and six determination methods to meet the moisture testing needs of every industry. Widely used in chemicals, petroleum, pharmaceuticals, power, food, research, and testing, it is a Karl Fischer moisture analyzer built 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
  

VicoMeter at the Customer Site

The customer purchased the VicoMeter WKT-A9 Precision Karl Fischer moisture analyzer mainly to test the moisture content in air-conditioning valves. Testing the moisture content in valves relies on carrier gas (99.999% high-purity nitrogen) to blow the moisture in the valve into the reaction vessel for reaction, thereby measuring the moisture content in the valve.

On arrival, the VicoMeter engineer first checked the accessories with the customer, then completed the installation of the Karl Fischer moisture analyzer, injected a small amount of deionized water (about 60 μL the first time) to let the cell equilibrate on its own, and installed the remaining accessories. The nitrogen pressure regulator was connected to the cylinder, the tubing was routed through a drying bottle (to dry the nitrogen further), then through a flow meter, and finally the outlet line was connected directly to the titration cell using a 1/8-to-1/8 gas adapter. Nitrogen pressure was set to 0.1 MPa and flow to 40 mL/min, the Karl Fischer injection delay was set to 150 s, and the analyzer was allowed to stabilize. The valve to be tested was connected at both ends with 1/8 tubing; the analyzer's start button was pressed and the tubing was quickly attached to the gas adapter, after which the instrument completed the test automatically. Three on-site tests all returned around 1500 μg — stable, repeatable results — and the customer was very satisfied with the training.

Customer Profile

Zhejiang Xinjin Air Conditioning Equipment

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Zhejiang Xinjin Air Conditioning Equipment

Zhejiang Xinjin Air Conditioning Equipment Co., Ltd. is located in Longquan, Zhejiang Province — China's automotive air-conditioning component industrial base, known as the home of celadon and sword-making. It is a modern enterprise integrating R&D, production, sales, and service of automotive air-conditioning thermal expansion valves, control valves, and other auto parts. Founded in 1999, the company covers 39,660 m² and operates a strong technology R&D center recognized by the Zhejiang Provincial Department of Science and Technology as a provincial high-tech R&D center. In August 2010 it acquired the complete expansion-valve production equipment of the former Parker (USA) business along with the related patents and technology. Its products are supplied to Ford, Caterpillar, Volvo Trucks, PACCAR, and Hummer overseas, and to Qingling, Shaanxi Auto, Geely, GAC, SGMW, Sichuan Hyundai, Dongfeng, Zotye, BAIC Huansu, Lifan, Foton, SAIC, Haima, Brilliance, Leopaard, Soueast, Changan, Great Wall, and FAW at home. Annual capacity has reached 8 million pieces, covering more than 90% of vehicle models worldwide. The company also actively supports national energy-saving and emission-reduction initiatives, has established partnerships with major domestic new-energy vehicle companies in recent years, and provides tier-2 supply services to thermal-management customers.