SF6 Gas Comprehensive Analyzer | 3-in-1 Tester | XHJL309
Boasting the combined capabilities of a micro-moisture meter, a purity analyzer and a decomposition product detector, this all-in-one SF6 gas comprehensive analyzer eliminates the need for three individual instruments. A single on-site measurement can finish three indicator tests, which not only saves two-thirds of the gas consumption per test but also ramps up work efficiency remarkably.
Sulfur hexafluoride (SF6) is the most widely used insulating and arc-extinguishing medium in high-voltage switchgear, circuit breakers and gas-insulated switchgear (GIS). Its quality directly determines the safe operation of the equipment. The analyzer measures the dew point (micro-moisture content), the gas purity and the concentration of decomposition products including hydrogen sulfide (H2S), sulfur dioxide (SO2) and carbon monoxide (CO) in a single connection, giving maintenance engineers a complete picture of the gas condition.
With original German imported self-locking connectors ensuring no gas leakage, a built-in 4Ah rechargeable lithium battery supporting 10 hours of continuous operation, and a large screen displaying the dew point measurement process as a curve, the instrument is fully equipped for fast, reliable and gas-saving on-site testing in substations and switchgear rooms.
Applications & Target Audience: Designed for SF6 gas suppliers and gas filling and recovery service companies, magnesium and aluminum smelting and casting enterprises using SF6 as molten metal protection gas, power environmental protection and greenhouse gas management departments, UHV DC converter station maintenance teams, power grid material quality inspection centers performing new gas acceptance tests, and professional SF6 gas testing and equipment condition monitoring service providers.
Key Specifications
| Parameter |
Specification |
| Purity Measurement |
0% ~ 100%, accuracy ±0.5% |
| Dew Point Range |
-80 °C ~ +20 °C, accuracy ±0.5 °C (-80 °C ~ -60 °C) |
| Dew Point Response |
63% in 10 seconds, 90% in 240 seconds / 63% in 5 seconds, 90% in 45 seconds |
| H2S Measurement |
0 ~ 200 ppm, accuracy ±0.5%, resolution 0.1 ppm |
| SO2 Measurement |
0 ~ 200 ppm, accuracy ±0.5%, resolution 0.1 ppm |
| CO Measurement |
0 ~ 1000 ppm, accuracy ±0.5%, resolution 1 ppm |
| Test Speed |
Dew point in 5 minutes; purity and decomposition products in 2 minutes |
| Data Storage |
200 sets of test data |
| Display |
Large screen with dew point measurement curve |
| Connectors |
Original German imported self-locking connectors, no gas leakage |
| Built-in Power Supply |
4Ah rechargeable lithium battery, 10 hours continuous operation |
| Ambient Temperature |
-40 °C ~ +60 °C |
| Ambient Humidity |
0 ~ 100% RH |
Product Features
Three-in-one design combines micro-moisture meter, purity analyzer and decomposition product detector
Fast and gas-saving: dew point measurement in 5 minutes, purity and decomposition products in 2 minutes, saving two-thirds of the gas consumption per test
Original German imported self-locking connectors ensure no gas leakage during measurement
Can store 200 sets of test data for comparison and trend analysis
Large screen displays the dew point measurement process as a curve
Built-in 4Ah rechargeable lithium battery for 10 hours of continuous operation
Why SF6 Gas Quality Matters
SF6 gas quality degrades gradually during equipment operation. Moisture enters through seals and gaskets, decomposition products are generated by internal discharges and arcing, and the purity decreases through leakage and contamination. Any of these changes can threaten the insulation and interruption performance of the switchgear.
| Gas Indicator |
Risk When Abnormal |
Detection Value |
| Micro-moisture (dew point) |
Moisture condenses on insulators and contacts, causing flashover and insulation failure, especially at low temperature |
Dew point -80 °C ~ +20 °C with ±0.5 °C accuracy |
| Purity |
Low purity weakens the insulation strength and arc-extinguishing capability; foreign gases may indicate contamination |
Purity 0% ~ 100% with ±0.5% accuracy |
| H2S and SO2 |
Decomposition products indicate internal discharge, arcing or partial discharge activity; they also corrode metal parts |
0 ~ 200 ppm with 0.1 ppm resolution |
| CO |
Elevated CO suggests decomposition of organic materials such as seals and insulation inside the equipment |
0 ~ 1000 ppm with 1 ppm resolution |
Three-in-One vs Three Separate Instruments
| Item |
Three Separate Instruments |
SF6 Comprehensive Analyzer |
| Instruments to carry |
Micro-moisture meter, purity analyzer, decomposition product detector |
One single instrument |
| Gas consumption per test |
Three separate gas draws, high total consumption |
One connection, saves two-thirds of the gas consumption |
| Test time |
Separate setups and connections for each test |
Dew point in 5 minutes, purity and decomposition in 2 minutes |
| Wiring and connectors |
Multiple hoses and adapters, higher leakage risk |
German imported self-locking connectors, no gas leakage |
| Work efficiency |
Repeated connection and disconnection |
One on-site measurement finishes three indicator tests |
Measurement Guide
Dew point measurement
Connect the analyzer to the equipment gas port using the self-locking connector
Start the dew point measurement; the large screen displays the measurement process as a curve
Wait for the reading to stabilize (about 5 minutes) and record the dew point value
Compare the result with the equipment standard to judge whether the moisture content is acceptable
Purity and decomposition product measurement
Switch to the purity and decomposition product test mode
The analyzer measures the SF6 purity and the H2S, SO2 and CO concentrations simultaneously
Read the values after about 2 minutes and store the results in the 200-set memory
Review the historical data to track the gas quality trend of the equipment
FAQ
Q1: What does the SF6 gas comprehensive analyzer test?
It combines a micro-moisture meter, a purity analyzer and a decomposition product detector in one instrument, measuring the dew point, the SF6 gas purity, and the H2S, SO2 and CO concentrations of SF6 gas in high-voltage switchgear in a single on-site measurement.
Q2: How much gas does it save compared with separate instruments?
A single on-site measurement finishes all three indicator tests with one connection, saving two-thirds of the gas consumption per test compared with using three individual instruments.
Q3: How fast is the measurement?
Dew point measurement takes about 5 minutes, while purity and decomposition product measurement takes about 2 minutes. The large screen displays the dew point measurement process as a curve for real-time monitoring.
Q4: Is the instrument suitable for field use?
Yes. The built-in 4Ah rechargeable lithium battery supports 10 hours of continuous operation, the original German imported self-locking connectors ensure no gas leakage, and the instrument operates at -40 °C ~ +60 °C with 0 ~ 100% RH ambient humidity.
Q5: How is test data managed?
The analyzer can store 200 sets of test data. Historical results can be reviewed on site to track the gas quality trend of each equipment, supporting condition-based maintenance decisions.
Every SF6 gas comprehensive analyzer is delivered with the main unit, self-locking connectors, gas hoses, charging adapter and operation manual, and is backed by one-year free warranty and lifetime technical service. For ordering, training and after-sales support, please contact our sales team.
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