1、 Measurement method

1. Initialization

Turn on the power switch of the instrument, and the instrument enters the initialization self verification process. This process8 minutes. After the system self calibration is completed, the software automatically switches to the main interface.

2. Check the battery level

When using DC power, please check the battery level displayed in the upper right corner. If the battery level is below about10% (battery indicator shows in red), please turn off and charge before continuing to use.

3. Connect SF6 equipment

Close the flow control valve on the instrument panel.

Insert one end of the quick connector on the test pipeline into the air inlet of the smart dew point meter; Connect the threaded end of the measuring pipeline to the measuring port switch connector and tighten it with a wrench.

Connect the exhaust pipe to the air outlet.

4. Start measuring

Slowly adjust the flow valve and adjust the flow toStart measuring at around 600-800ml/min.

5. Store data

After the equipment measurement is completed, the data can be saved in the instrument. The specific operation method is described in the next section.

6. Measure other equipment

After measuring with one device, close the regulating valve. Connect the adapter fromRemove from SF6 electrical equipment.

7. Measurement completed

After all equipment measurements are completed, turn off the instrument power.

2、 Typical application scenarios

GIS equipment inspection

someThe 500kV substation detected a sudden increase of 5 μ L/L in SF6 humidity and promptly replaced the adsorbent

Avoid partial discharge faults caused by moisture

Circuit breaker maintenance

online monitoringAnnual attenuation rate of gas density of 126kV circuit breaker (should be<0.5%)

Discovery of aging and leakage of seals（0.3%/year over threshold)

Recycling and Processing Center

detectionSF6 recovery equipment purity (requirement ≥ 99.99%)

Leakage rate detection（≤1×10 ⁻⁶ Pa·m³/s）

Scientific research experiment

Durability testing of new composite insulation materials（Humidity change after 1000 cycles of opening and closing

Simulate aging curves under different environments