SF6 Comprehensive Gas Analyzer Maintenance Equipment Technical Specifications
(1) Measurement range: Dew point: -80℃ to +20℃
Moisture content: 1~23700uL/L (ppm)
(2) Measurement accuracy: ±1℃ (-60℃ to +20℃)
±2℃ (-80℃ to -60℃)
(3) Resolution: Dew point: 0.01℃
Moisture content: 1uL/L (ppm)
(4) Response time (+20℃, 0.1Mpa): 63% in 5s, 90% in 45s (-60℃ to +20℃)
63% in 10s, 90% in 240s (+20℃ to -60℃)
(5) Sampling flow rate: 2~3L/min ±20%
(6) Pressure range: 0~1.0 Mpa
(7) Operating temperature: -20℃ to +60℃
(8) Ambient humidity: 0～100% RH
(9) Storage temperature: -20℃ to +80℃
(10) Overall dimensions: 490×350×210mm
(11) Overall weight: 4kg
SF6 Comprehensive Gas Analyzer Maintenance Equipment Working Principle
For instrument measurement, common methods include mirror method, gravimetric method, coulomb electrolysis method, capacitance method, etc. The first and second methods have high requirements for environmental conditions, long measurement time, and are afraid of contamination, etc., and are generally only used for arbitration analysis; the third method has large gas consumption during measurement, is afraid of contamination, and has long measurement time, etc., and requires powering on and drying gas the day before use, and has poor repeatability. The fourth method is currently the most widely used method because it has advantages such as short measurement time, low gas consumption, and resistance to contamination.
2. Measurement of H2 humidity by the instrument
Common measurement methods include ventilated dry-wet bulb method and coulomb 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 contamination, etc.
Based on the above reasons, we have innovated on the basis of absorbing the advanced technology and experience of some domestic and foreign humidity instrument manufacturers, and developed a micro-water measuring instrument with domestic leading level. It has advantages such as convenient use, short measurement time, high measurement accuracy, wide measurement range, and easy maintenance. Since the tester adopts advanced single-chip microcomputer technology, the instrument realizes automatic conversion among units such as dew point, PPmV, micro-water at ambient temperature of 20℃, absolute humidity, etc., 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.
Product Parameters:
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Moisture (Dew point) |
Measurement range |
-60 ℃ to +20 ℃ |
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Measurement accuracy |
±2℃ |
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Response time (+20℃) |
63% in 45 seconds, 90% in 90 seconds |
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Resolution |
0.1℃/1ppm, |
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Power supply |
AC 220V |
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Built-in rechargeable battery, can be used for 30 hours after charging |
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