Hubei, China
Business Type:
Manufacturer/Factory & Trading Company
Business Range:
Electrical & Electronics, Instruments & Meters
Management System Certification:
ISO9001:2015, ISO14001:2015, OHSAS18001:2007
Export Year:
OEM/ODM Service
Sample Available

SF6 Gas Analysis, sf6 gas purity analyzer, sf6 moisture analyzer manufacturer / supplier in China, offering SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD), GDM-16 Generator Characteristic Comprehensive Test System, GDJB-802 Three Phase Secondary Current Injection Relay Test Set and so on.

Diamond Member Since 2011
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Supplier Homepage Products SF6 Gas Test Set Dew Point Tester SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)
  • SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)
  • SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)
  • SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)
  • SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)

SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)

Min. Order / Reference FOB Price
1 Set US $4,535-9,292/ Set
Port: Shanghai, China
Production Capacity: 5000set/Year
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Customized: Customized
Portable: Portable
Gas: SF6
Type: Electrochemical Gas Analyzer
Measurement method (Humidity): Resistive and Capacitive measurement principle

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Basic Info.

Model NO.
Measurement range
dew point -80ºC--+20ºC(support ppmv)
Response time
+20→-20ºC Td 5s[45s];
± 0.5 ºC
Display unit
 ºC, ppm, ºCP20
Transport Package
Export Wooden Box
HS Code
SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)

GDSF-311WPD is ideal instrument when it is necessary to test water content, purity and decomposition products of SF6 gas. The core component of dew point test is DRYCAP series sensors produced by Finland Vaisala company. With professional hardware chips and excellent software algorithms of STMicroelectronics, we have produced a new generation of gas moisture test instrument.


Moisture monitoring of SF6 gas electrical equipment for electric power
SF6 gas cylinder gas quality test
High purity gas manufacturing
Semiconductor industry dry gas supply
Research and development use
Clean room/dry house monitoring
Metal heat treatment site and laboratory industrial gas humidity detection, such as air, CO2, N2, H2, O2, SF6, He, Ar and other inert gases.

  1. Better than ±1ºC measurement accuracy.
  2. All gas path with high polymer material design, ensures no water wall hanging phenomenon and guarantees the test speed.
  3. The oil-free stainless-steel body regulating valve is used to ensure the accuracy of the measured value.
  4. Advanced software algorithms improve the test accuracy of sensors.
  5. Combined chassis configuration solution, users can easily combine related instruments and accessories. The overall package is carried, which makes the user have a more relaxed experience.
  6. Startup test, no need to preheat and oscillate.
  7. Temperature conversion and pressure data correction.
  8. Fuzzy computing technology.
  9. High-power lithium battery power, realize AC and DC dual power supply. No on-site AC power is required. Lithium battery power supply continues to work for more than 8 hours without the need of an external power supply.
  10. Anti-electromagnetic interference circuit design to ensure product reliability.
  11. Large-capacity memory, which can realize 1000 sets of data storage functions.
  12. The test data is stable and can provide both standard dew point values and converted dew point values at 20ºC.
  13. The best test flow area shows that the user can adjust the gas flow intuitively and quickly. Reduce test time.
  14. The air inlet is designed with a miniature self-sealing joint, and the air path to be tested will not leak when the air path is disconnected.


SF6 Humidity

Measurement method

 Resistive and Capacitive measurement principle

Measurement range

 dew point -80ºC--+20ºC(support ppmv)



(when the dew point temperature is below 0 ºC, the sensor output is the frost point)

Response time

 63% [90%]

+20→-20ºC Td 5s[45s]

-20→-60ºC Td 10s[240s]




 ± 0.5 ºC

Display unit

 ºC, ppm, ºCP20(converted value at 20ºC)

Gas flow


Flow display

 0-1000mL digital flow meter

Sample gas pressure


SF6 Purity

Measurement method

 TCD technology.

Measuring range

 0 ~ 100% SF6.

Accuracy and repeatability

 ± 0.5%, nothing to do with the flow.

SF6 decomposition products


1 ~ 200ppm (standard)

SO21 ~ 100ppm (standard).
Gas flow 0.5±0.1L/min
Other features

Power supply

 220VAC±10%, 50Hz, AC/DC use, over-charge protection, continuous working is no lower than 8hours.

Use environment temperature


Environment humidity


Measurement value influence

 No effect of pressure and flow




 about 2kg

SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)
SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)
SF6 Gas Analysis Moisture & Purity Analyzer (GDSF-311WPD)

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