SF6 Comprehensive Analyzer
Supply Manufacture Price for SF6 Comprehensive Analyzer
Company Profile
Our company has specialized in the production and manufacturing of SF6 Comprehensive Analyzer for 20 years, with a modern intelligent factory covering an area of over 10000 square meters, staffed by 51 professional technicians, and hold CE certification. 35 patents, 10+ software copyrights，Currently, we have over 150 stable distributors worldwide and established more than 10 service offices overseas.
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What is SF6 Comprehensive Analyzer?
The SF6 Gas Analyzer is a portable, multifunctional testing instrument designed specifically for the power industry. It is primarily used for on-site testing and maintenance of multiple key parameters of sulfur hexafluoride (SF6) gas in electrical equipment ( GIS and circuit breakers), enabling rapid diagnosis of latent faults within the equipment and ensuring the safe operation of power systems.
The following three parameters are primarily tested:
1. SF₆ Purity
The percentage of actual SF₆ in the gas.
2. Trace Moisture (Dew Point)
The moisture content in the gas; excessive moisture can cause corrosion and equipment breakdown.
3. Decomposition Products
Such as SO₂, H₂S, CO, SOF₂, etc.
These are toxic and harmful gases generated by internal discharges, overheating, and equipment malfunctions.
Working Principle
1. Principle of SF6 Purity Measurement
Method: Non-dispersive infrared (NDIR) sensor
Different gases absorb infrared light at different wavelengths.
SF6 exhibits characteristic absorption peaks at specific infrared wavelengths.
By detecting changes in light intensity, the volume percentage concentration of SF6 is calculated.
2. Principle of SF6 Trace Moisture (Dew Point) Measurement
Technology: Polymer Thin-Film Capacitive Humidity Sensor
The thin film adsorbs water molecules → capacitance changes → converted to dew point temperature or volume fraction (μL/L).
This directly reflects the dryness of the gas.
3. Principle of SF6 Decomposition Product Measurement
Technology: High-Precision Electrochemical Sensor
Mainly detects:SO₂;H₂S;CO;SOF₂
Operation Process
An SF6 gas analyzer essentially integrates multiple high-precision sensors into a single gas flow system. An air pump draws SF6 gas, which flows sequentially through the various sensors, simultaneously measuring multiple parameters.
1. Sampling
The instrument is equipped with a built-in miniature vacuum pump that draws gas from SF6 electrical equipment (such as circuit breakers and GIS).
2. Pressure Stabilization, Flow Stabilization, and Filtration
The gas undergoes pressure stabilization, filtration, and drying to ensure measurement stability.
3. Parallel/Sequential Multi-Sensor Detection
The gas flows simultaneously or sequentially through:
Purity sensor;Trace moisture (dew point) sensor;Decomposition product sensor.
4. Signal Processing and Display
Sensor output → ADC acquisition on the mainboard → CPU calculation → Results displayed on the screen.
5. Data Storage, Printing, and Upload
Data can be saved, printed, or uploaded to a computer.
Main Application
The SF6 Comprehensive Analyzer is primarily used for gas quality testing, fault diagnosis, and safe operation and maintenance of SF6 electrical equipment. It serves as a core instrument for preventive testing, maintenance, and acceptance inspections of high-voltage equipment in power systems.
- GIS (Gas-Insulated Switchgear) equipment, SF6 circuit breakers
- Switch stations, substations
- Chemical plants, semiconductor manufacturing, etc.
- Universities and research institutes: Research on SF6 gas properties
- Switchgear, ring main units, GIS rooms
- Rail transit, industrial and mining enterprises
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15.Goldhome HMZH‑5 SF6 Multi‑Function Gas Analyzer
Major Brands
International
DILO (Germany)
A global leader in SF6 gas treatment and detection, offering a full product line ranging from portable and online devices to recovery and purification systems. Known for top-tier accuracy and reliability, though priced on the higher side.
01
Cambridge Sensotec (UK)
Specializes in infrared gas analysis technology, delivering high accuracy in SF6 purity, trace moisture, and decomposition product detection. Ideal for high-precision laboratory and metrological calibration applications.
02
RH Systems (USA)
Leader in trace moisture (dew point) detection technology; the humidity measurement module in its SF6 comprehensive analyzers delivers outstanding performance and is suitable for harsh environments.
03
EMT (Germany)
An expert in industrial-grade gas analysis, offering SF6 analyzers with exceptional stability, suitable for long-term monitoring in industrial settings such as power generation and chemical plants.
04
WIKA (Germany)
A long-established manufacturer of pressure and gas detection equipment, offering highly integrated SF6 analyzers that balance measurement accuracy with field durability.
05
Domestic
Goldhome Hipot (Wuhan)
A specialized manufacturer of power testing equipment, focusing on portable, multifunctional SF6 analyzers. These devices integrate purity, trace moisture, and decomposition product detection, featuring touchscreen operation, built-in pump recirculation, and data storage and printing capabilities. They are well-suited for on-site inspections and emergency repairs at substations, offering outstanding value for money.
Guodian Xigao (Wuhan)
A well-known brand in power testing equipment. The GDSF series of SF6 comprehensive analyzers (such as the GDSF-413PPD) are three-in-one or four-in-one models that support rapid on-site testing and data export.
Henan Hitachi Xin (Zhiyi)
A long-established domestic SF6 testing company, with a product line covering portable and online models. Their mature technology is suitable for preventive testing and equipment operation and maintenance in power systems.
Hanzheng Electric
Specializing in power testing instruments, their SF6 comprehensive analyzers offer comprehensive functionality, supporting simultaneous measurement of multiple parameters, and are suitable for both field and laboratory applications.
FAQ
Q: 1. What does an SF6 gas analyzer measure?
A:It primarily measures three key parameters of the gas in SF6 electrical equipment:SF6 purity;Trace moisture (dew point);Decomposition products (SO₂, H₂S, CO, etc.).It is used to identify potential hazards such as moisture ingress, electrical discharge, overheating, and insulation degradation.
Q: 2. How long does a single measurement take?
A: it takes 5 to 10 minutes to complete measurements of all parameters.
Once the instrument has stabilized after startup, measurements are fast and gas consumption is low.
Q: 3. Does the instrument require preheating?
A:Yes. Preheat for 3 to 5 minutes after startup to allow the sensors to reach a stable operating state and ensure measurement accuracy.
Q: 4. Will gas leak during measurement?
A: Genuine products use quick-lock connectors, which provide reliable connections and excellent sealing; no gas leaks occur during normal operation.
Q: 5. Does the instrument require regular calibration?
A:Yes.We recommend calibrating once a year.
For metrology or third-party testing applications, calibration can be performed every six months. Models such as Goldhome support on-site open calibration, eliminating the need to return the unit to the factory.
Q: 6. Can the instrument be used while charging?
A:Yes. The instrument supports dual power modes: AC 220V and built-in lithium battery, allowing for measurement while charging without affecting operation.
Q: 7. Can measurement data be saved, printed, or uploaded?
A:Yes.Mainstream models generally feature:
Data storage (several hundred sets)
Built-in printer
USB/RS232 data upload to a computer
Q: 8. Can it be used outdoors or in rainy weather?
A: The instrument is a portable field model and can be used outdoors,
but it must not be exposed to rain or water ingress; it should be operated in a dry environment.
Q: 9. Which equipment requires an SF6 comprehensive analyzer?
A:GIS (Gas-Insulated Switchgear)
SF6 high-voltage circuit breakers
SF6 current/voltage transformers
SF6 gas-insulated switchgear and ring main units
Suitable for substations, power plants, and high-voltage switchgear manufacturers.
Q: 10. What should I do if the instrument displays unstable data?
A: Common causes: Unstable gas flow;Sensor not fully warmed up and stabilized;Residual gas interference in the gas line
Solution:
Rinse the gas line again → Stabilize the flow → Re-measure.
Q: 11. What is the difference between an SF6 comprehensive analyzer and an SF6 leak detector?
A: SF6 comprehensive analyzer: Measures gas quality (purity, trace moisture, decomposition products)
SF6 Leak Detector: Detects gas leaks and locates leak points
They serve different functions and are typically used in conjunction.
Q: 12. What is the service life of the instrument?
A:Under normal use and with proper maintenance:
Main unit: 5–8 years
Electrochemical sensor lifespan: 2–3 years (consumable, replaceable)
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