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Ex protection

Calibration of ultra-high pressures over the entire measuring range

Jing Lyu | Applications
Calibration of ultra-high pressure

The calibration of ultra-high pressures is a challenge. This is because conventional test instruments are only designed for pressures up to 1,000 bar. In many applications, however, sensors work with several times this value, for example in the automotive industry. If …

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Switch with “CCC Ex” for the Chinese market

Iris Benkstein | Know-how
Switch with CCC Ex

CCC - without proof of China Compulsory Certification, many industrial goods are denied access to the "Middle Kingdom". Since 1st October 2020, this compulsory marking has also extended to products with explosion protection. Therefore, all WIKA instruments that fall …

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Safe filter monitoring with differential pressure gauges

Jing Lyu | Applications
Filter monitoring with differential pressure gauges

Filter monitoring is a core task of differential pressure gauges - the differential pressure increases as soon as the filter becomes clogged. The measuring instruments thus signal when the filter needs to be cleaned or replaced. The efficiency of such a solution can be …

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Natural gas: On-site calibration optimised at the metering skid

Jing Lyu | Applications
On-site calibration with the CPH8000 multi-functional calibrator

On-site calibration of measuring instruments is often very time-consuming and expensive. This is especially true for applications with several measurands. One example of this is the metering skid, a system for the custody transfer measurement of the amount of natural …

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Ex protection – The difference between the Zone and Division model

Jens Bargon | Know-how
The zone and the division model

“The product is suitable for use in Zone 1, as well as for use in Class 1, Div 1.” This statement is heard or read again and again in the descriptions for products for use in hazardous areas. But what is the difference between Zone 1 and Class 1, Div 1? Let's …

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