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  • SF6 gas density controller

879X series

Article: 00051679

SF6 gas density controller

Gas density controllers operate mechanically without any external power. Bellows system allows the sample gas density to be compared with that of reference gas chamber. If the density of the target changes, micro switches are triggered. The controller works reliably even at temperature fluctuations of over 135°C. These controllers are used all over the world, in gas-insulated high voltage power switchgear. They work electronically and the resonant frequency of a quartz oscillator in vacuum is compared with an identical quartz in the sample gas.

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