Micro Water Tester/SF6 Gas Detector Features
1. Short measurement time and low gas consumption
2. Anti-pollution
3. Data storage and query function
4. Wide measurement range and high accuracy
5. Long-term stability and good repeatability
6. Automatic conversion of micro water value to standard micro water value at 20℃
Micro Water Tester/SF6 Gas Detector Product Structure
It adopts world-advanced sensor technology, the AS2 humidity sensor from ALPHA Company in the UK. It uses thin-film sensing technology, which is anti-condensation, anti-dust particles, and unaffected by gasoline and most gases.
Product aliases:
Dew point meter, moisture meter, SF6 micro water tester, SF6 dew point meter
Working Principle
For instrument measurement, common methods include mirror method, gravimetric method, coulometric electrolysis method, capacitance method, etc. The first and second methods have relatively high requirements on environmental conditions, long measurement time, and fear of pollution, so they are generally only used for arbitration analysis. The third method consumes a large amount of gas during measurement, is afraid of pollution, and has a long measurement time. When using the equipment, it needs to be powered on and ventilated for drying one day in advance, and the repeatability is poor. The fourth method is currently the most widely used because it has the advantages of short measurement time, low gas consumption, and resistance to pollution.
2. Measurement of H2 humidity by the instrument
Common measurement methods include ventilation dry-wet bulb method and coulometric electrolysis method. The first method is greatly affected by ambient temperature and humidity, and the measured value is high; the second method, in addition to the aforementioned disadvantages, is also afraid of pollution.
Based on the above reasons, we have innovated on the basis of absorbing the advanced technology and experience of domestic and foreign humidity instrument manufacturers, and developed a micro water measuring instrument with domestic leading level. It has the advantages of convenient use, short measurement time, high measurement accuracy, wide measurement range, and easy maintenance. Because the tester adopts advanced single-chip microcomputer technology, the instrument realizes automatic conversion among dew point, PPmV, micro water at ambient temperature of 20℃, absolute humidity and other units, without manual table lookup and conversion. The circuit part of the instrument is advanced and reliable. In order to meet the needs of field operations, the instrument adopts AC/DC dual use, and the built-in battery can work continuously for more than 20 hours, broadening the scope of use and greatly facilitating users.
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