The standard of micro-moisture content in SF6 circuit breaker gas during operation:
Micro-moisture range: -60～+20℃, accuracy: ±2℃.
Response time (+20℃): -60～+20℃, 5s (63%) 45s (90%), +20～-60℃, 10s (63%) 240s (90%) .
SF6 gas micro-water meter adopts the latest sensor technology of the world's most advanced British ALPHA company. It uses DRYCAP-thin film sensing technology, compound thin film moisture-sensitive materials, and has three world patents.
Mylar probe DRYCAP is resistant to condensation, dust particles, and is not affected by gasoline and most gases. Advantages: TPGSM series gas moisture meter adopts the principle of resistance-capacitance method and uses capacitive polymer film humidity sensor. It has the advantages of high accuracy, good repeatability and small drift.
Extended information
Precautions for using SF6 circuit breakers:
1. The instrument should be placed in a safe location to prevent it from falling and severe vibration.
2. The probe should be cleaned and calibrated after a certain period of use. It is recommended that the calibration interval should be one year. When verification is required, please contact our company.
3. When adjusting the gas flow, the control needle valve should be opened slowly so that the flow rate is displayed at 0.5-0.6 liters/minute.
4. After the instrument has been used for a period of time (using the battery), it should be charged in time. When charging, you only need to connect the power cord to the 220V socket. There is no need to turn on the power switch. The instrument will charge automatically. The charging time is generally 5 For more than an hour, the charging indicator light changes from green to red when the instrument is fully charged.
Baidu Encyclopedia-SF6 gas micro-water meter