Gas density monitoring
Trafag gas monitoring devices measure the gas density directly, i.e. SF6 gas density monitors, with the unique gas density reference principle or the patented quartz tuning fork technology, i.e. SF6 gas density sensors, or by combining both principles, i.e. SF6 hybrid gas density monitors. They thus offer the most reliable solution on the market by directly measuring the SF6 gas density. Trafag guarantees outstanding accuracy and operation in the widest temperature range on the market.
Product range overview
Monitoring and measurement devices
Trafag’s product range of gas density measuring devices splits into three different product groups: The mechanically working gas density monitor, the electronic gas density sensor and the hybrid gas density monitor, monitoring both mechanically and electronically. All three types have one thing in common: They are suitable for SF6 and the complete range of alternative insulating gases.
Gas density monitors
Absolute SF6 and alternative gas density monitoring with reference gas comparison
The gas density monitor is based on the principle of reference gas comparison and therefore no temperature compensation is necessary. It works electromechanically and is thus independent of electrical energy supply. Since no recalibration of switchpoints is needed, it operates maintenance-free. The operating temperature ranges are from -60°C up to +80°C.
Gas density sensors
Electronic absolute SF6 and alternative gas density measurement with patented quartz tuning fork
The gas density sensor uses a quartz tuning fork to measure gas density directly – a unique technology patented by Trafag. With the delivery of continuous output signals (analogue or digital) from this electronically operating sensor, Trafag opens new paths for the energy distribution industry. Comprehensive density trend analysis of pressurized compartments is implemented easily.
Hybrid gas density monitors
Combined mechanical monitoring and electronic measurement of SF6 and alternative gas density
The hybrid gas density monitor combines the advantages of both, the mechanical gas density monitor and the electronic gas density sensor in a compact all-in-one apparatus. With its continuous measurement output it is ideal for insulating gas management trending systems, but it also has a local gas pressure indication and robust switchpoint alarm contacts.
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