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878x

878x Hybrid Gas Density Monitor with analogue output

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Main features

Exact switching following isochore at all temperatures
No contact bouncing
Independent, galvanically separated circuits
Continuous analogue output signal for gas density
Long term drift free sensor output signal

About

The hybrid gas density monitor combines self-acting monitoring with high-performance microswitches and continuous density measurement of insulating gases in one device. It covers demanding applications and maintains highest accuracy over a very wide temperature range. Trend analysis helps to detect possible leakages sooner, provides data for preventive maintenance measures and therefore facilitates compliance with greenhouse gas regulations. This precise and maintenance-free hybrid density monitor is reliable in operation over decades for indoor and outdoor applications.

Technical Data

More Information
Product code	878x
Designation	Hybrid Gas Density Monitor with analogue output
Measuring principle	Mechanical monitoring: Principle: Reference gas measurement Electronic monitoring: Principle: Oscillating quartz measurement
Designation of application	Gas Density Monitor for SF6 and other gases with output signal for continuous monitoring
Output signal	Mechanical monitoring: floating change-over contact Electronic monitoring/Sensor: analogue: 6.5...20 mA current loop Output signal 6.5...20 mA current loop 0...0.85MPa absolute SF6 @ 20°C 0...56.1 kg SF6 /m3
Ambient temperature	-40°C ... 80°C