Integrated SF6 Gas Tester | 3-in-1 Comprehensive Analyzer | XHJL309
This all-in-one instrument integrates a micro-moisture meter, a purity tester and a decomposition product analyzer, replacing three separate devices with one compact unit. One on-site test is enough to complete three indicator detections, slashing gas consumption by two-thirds per measurement and improving work efficiency greatly.
SF6 gas is the insulating and arc-extinguishing medium of high-voltage switchgear, circuit breakers, gas-insulated switchgear (GIS) and gas-insulated transmission lines (GIL). The integrated tester measures the dew point, the SF6 purity and the concentration of decomposition products (H2S, SO2 and CO) through a single gas connection, giving a complete assessment of gas quality that supports equipment condition evaluation and preventive maintenance planning.
Designed for fast field work, the instrument measures the dew point in 5 minutes and the purity and decomposition products in 2 minutes. The original German imported self-locking connectors guarantee a leak-free connection, while the built-in 4Ah rechargeable lithium battery supports 10 hours of continuous operation, making it a reliable companion for inspection teams working through a full day of testing.
Applications & Target Audience: Designed for offshore wind farm operators maintaining SF6 equipment on offshore substations, high-voltage equipment condition monitoring system integrators, UHV AC substation maintenance teams testing 1000kV GIS gas, gas-insulated transmission line (GIL) operation teams, smart substation retrofit and condition-based maintenance service providers, and industrial park incremental distribution network operators managing GIS substations.
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
One compact unit replaces micro-moisture meter, purity tester and decomposition product analyzer
Fast and gas-saving: dew point in 5 minutes, purity and decomposition products in 2 minutes, two-thirds gas saving per measurement
Original German imported self-locking connectors ensure no gas leakage
Can store 200 sets of test data for trend comparison and condition assessment
Large screen displays the dew point measurement process as a curve
Built-in 4Ah rechargeable lithium battery, 10 hours continuous operation
SF6 Equipment Where the Analyzer Works
SF6 is used across a wide range of high-voltage equipment. The integrated tester serves every type of SF6-insulated apparatus with the same simple connection and the same complete three-indicator measurement.
| Equipment Type |
SF6 Application |
Testing Focus |
| GIS (gas-insulated switchgear) |
Complete substation bays insulated with SF6 |
Dew point, purity and decomposition after any gas top-up or internal fault |
| SF6 circuit breakers |
Arc extinguishing and insulation in the interrupter chamber |
Decomposition products indicate arcing wear and internal discharge |
| GIL (gas-insulated transmission line) |
Long-distance high-voltage power transmission in SF6-filled pipes |
Purity and moisture monitoring over long pipe sections |
| SF6 instrument transformers |
Insulation of CT and PT primary windings |
Moisture is critical for insulation reliability of these sealed units |
| SF6 ring main units (RMU) |
Distribution network switchgear insulation |
Routine gas quality check during distribution network inspection |
| SF6 load break switches |
Medium-voltage switching in industrial and utility networks |
Fast dew point check to prevent condensation flashover |
On-site Testing Workflow
Identify the equipment and gas port, and confirm the gas compartment pressure is normal
Connect the analyzer to the equipment gas port with the German self-locking connector, ensuring a leak-free joint
Start the dew point measurement and watch the measurement curve on the large screen; record the stabilized value after about 5 minutes
Switch to the purity and decomposition product mode; read the SF6 purity and the H2S, SO2 and CO concentrations after about 2 minutes
Store the results in the 200-set memory with the equipment identification for later comparison
Disconnect the connector and close the equipment gas port according to the operating procedure
Data Management & Maintenance
The 200-set data storage records the test history of each equipment, supporting trend analysis of gas quality degradation
Compare the latest measurement with the previous values to detect slow moisture ingress or discharge activity
Recharge the built-in lithium battery after each working day; the 4Ah capacity supports 10 hours of continuous operation
Keep the connectors clean and protected; inspect the sealing O-rings regularly to maintain leak-free performance
Store the instrument in the carrying case in a dry environment when not in use
FAQ
Q1: What is the integrated SF6 gas tester?
It is an all-in-one instrument integrating a micro-moisture meter, a purity tester and a decomposition product analyzer. One on-site test completes three indicator detections, replacing three separate devices and saving two-thirds of the gas consumption per measurement.
Q2: What parameters can it measure?
It measures the SF6 purity (0% ~ 100% ±0.5%), the dew point (-80 °C ~ +20 °C ±0.5 °C) and the decomposition products H2S (0 ~ 200 ppm), SO2 (0 ~ 200 ppm) and CO (0 ~ 1000 ppm).
Q3: How fast is the measurement?
Dew point measurement takes about 5 minutes, and purity and decomposition product measurement takes about 2 minutes. The large screen displays the dew point measurement process as a curve.
Q4: Which equipment can it test?
It tests all SF6-insulated equipment including GIS, SF6 circuit breakers, gas-insulated transmission lines (GIL), instrument transformers, ring main units and load break switches in substations, power plants, offshore platforms and industrial networks.
Q5: How long does the battery last?
The built-in 4Ah rechargeable lithium battery supports 10 hours of continuous operation, enough for a full day of on-site testing. The instrument operates at -40 °C ~ +60 °C with 0 ~ 100% RH ambient humidity.
Every integrated SF6 gas tester 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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