Product Details

Precision SF6 Dew Point Meter Sulfur Hexafluoride Moisture Meter Precautions:

1. Before powering on, the operator should be familiar with the operating instructions and strictly follow the startup and shutdown procedures of the instrument.

2. Do not place the probe gun on the ground, keep the probe hole free of dust, and avoid dropping or damaging it to prevent affecting the instrument's performance.

3. Do not disassemble the probe gun and the chassis to avoid affecting the normal operation of the instrument.

4. The instrument probe has been calibrated; do not adjust it arbitrarily. The normal operation of the instrument is determined by the self-calibration readings.

5. Pay attention to the maintenance of the vacuum pump and ensure the solenoid valve operates normally and maintains sealing, as the proper functioning of the vacuum pump and solenoid valve affects the use of the instrument.

6. When changing the oil of the vacuum pump, the instrument must be disconnected from the power supply to avoid electric shock.

7. During transportation, the instrument must not be placed upside down or subjected to severe vibration.

Precision SF6 Dew Point Meter Sulfur Hexafluoride Moisture Meter Working Principle

For the measurement of the instrument, common methods include the mirror method, gravimetric method, coulometric electrolysis method, capacitance method, etc. The first and second methods have high requirements for environmental conditions, long measurement times, and are prone to contamination, so they are generally only used for arbitration analysis. The third method consumes a large amount of gas, is prone to contamination, and has long measurement times. When using the equipment, it needs to be powered on and ventilated for drying a day in advance, and the repeatability is poor. The fourth method is currently the most widely used due to its advantages of short measurement time, low gas consumption, and resistance to contamination.

2. Measurement of H2 humidity

    Common measurement methods include the ventilated wet and dry bulb method and the coulometric electrolysis method. The first method is greatly affected by ambient temperature and humidity, resulting in higher readings; the second method, in addition to the aforementioned disadvantages, is also prone to contamination.

Based on the above reasons, we have innovated by absorbing the advanced technology and experience of domestic and foreign humidity instrument manufacturers, and developed a micro-water measurement instrument with domestic leading level. It has the advantages of convenient use, short measurement time, high measurement accuracy, wide measurement range, and easy maintenance. The tester adopts advanced microcontroller technology, so the instrument can automatically convert between units such as dew point, ppmV, micro-water at ambient temperature of 20°C, and absolute humidity, without the need for manual table lookup. The circuit part of the instrument is advanced and reliable. To adapt to field operations, the instrument uses AC/DC dual power supply, and the built-in battery can work continuously for more than 20 hours, broadening the scope of use and greatly facilitating users.

Product Parameters:

Features

1. Short measurement time and low gas consumption    

2. Resistant to contamination                

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°C

Product Structure

Adopts world-leading sensor technology, the AS2 humidity sensor from UK ALPHA company, which uses thin-film sensing technology, resistant to condensation, dust particles, and unaffected by gasoline and most gases.



Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.