Test SF6 Purity, Moisture Content, Byproducts with DILO 3-038R-R303

DILO 3-038R-R303 Zero Emission SF6 AnalyzerSulfur-hexafluoride (SF6) is used as a dielectric in high power gas insulated equipment such as breakers, switches, transformers and transmission lines, and is normally a very stable, non-reactive gas, even in the presence of high energy discharge.


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SF6 alone is desired within gas insulated equipment however, it is possible for water vapor to permeate the internal components of the apparatus. While water vapor and SF6 are normally non-reactive with each other, in the presence of a high-energy discharge, the hydrogen and oxygen of the water vapor may react with the sulfur and fluorine of the SF6 creating compounds that are corrosive to the internal workings of the equipment.

Since SF6 with low water vapor content significantly reduces the potential for the formation of corrosive compounds, an SF6 gas analyzer is a critical component to any preventative maintenance program for gas insulated equipment.

The DILO 3-038R-R303 Zero Emission SF6 Analyzer with gas return system is a user-friendly and compact device which allows determination of up to six parameters with only one measurement. No SF6 gas is released into the atmosphere.

With the DILO 3-038R-R303 Zero Emission SF6 Analyzer the following parameters are measured:

  • SF6concentration (%)
  • Moisture concentration
  • SO2concentration (ppmv )
  • Option: HF concentration, H2S concentration, CO concentration (in ppmv each)

Related electrical test equipment available for rent from Protec:

DILO SF6 Analyzer Adapter Kit

DILO SF6 Cylinder Heating Blanket HB 120A

DILO 3-033-R002 SF6 Gas Leak Detector

This electrical test equipment is available for rent, lease, or purchase from Protec Equipment Resources. We are here to help you with your testing equipment needs.

Protec’s Calibration Lab offers accurate and affordable calibration services for all makes and models of electrical test and measurement equipment. Contact us today for a quote.


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