Portable SF6 Gas Density Monitors

SF6 density monitors provide reliable warnings against dangerously low gas levels, even in extreme environmental conditions.

What is SF6 Gas Density Monitoring?

Gas density is a vital operating structure for high-voltage equipment. If the required gas density is not present, safe operation of the present working environment cannot be guaranteed. This is exactly why SF6 gas density monitoring is a necessary component in providing a safe and secure working environment.

How do SF6 Density Monitors Operate?

Gas density is often indirectly determined by the gas pressure using manometers or pressure sensors. As the pressure in the hermetically closed volume varies enormously with temperature, such devices need temperature compensation. SF6 gas density monitors provide this compensation and operate through electrical switch contacts. Once gas levels reach an unacceptable level the electrical contact switches are triggered, and a warning is relayed to an operator.


SF6 Gas Density Monitoring Experts

Solon Manufacturing Company’s portable SF6 gas density monitors are a reliable and economical way to monitor SF6 gas density and leakage over a wide temperature range. Temperature-compensated pressure switches automatically adjust their settings to follow temperature changes for all SF6 density levels including mixed gases. These switches are primarily used to measure the density of SF6 in high voltage circuit breakers.

Additional Ambient Temperature SF6 Gas Density Monitoring Options 

For years, Solon Mfg. technology has provided a reliable defense against leaking circuit breakers. Well-known for its legacy product, the temperature-compensated (TC) pressure switch, Solon offers additional options for modular SF6 gas density monitoring. Solutions include the sophisticated Watchman AutoFill, with the unique feature that automatically replenishes the depleted SF6 supply, which means eliminating the risk of costly circuit breaker lockouts and alarms.

Depending on your needs and your budgetary considerations, Solon offers various levels of bulb density switch SF6 monitoring assurance, with and without digital feedback options.

Remote Bulb Density Switch

Bulb-style density switch controls use a liquid filled temperature sensor (bulb) that is attached to the switch with a capillary tube; enabling the switch body to be in one area, while the bulb is mounted up to 16 ft away. Bulb designs are useful when the temperature surrounding the switch body will be different from the gas temperature.

Pressure Switch Options

Base Model TC Pressure Switches

These premium valve coupling SF6 gas density monitors measure and regulate gas density and leakage. Some of the other features include:
  • Provides alarm at the reserve, prompting user to react 
  • Includes a lockout feature
Additional Information: Case Study: Solon® TC Density Switches for High Voltage Circuit Breakers

Watchman SF6

This unique device contains all the features of the pressure switch and smart switch models plus other beneficial qualities, including:
  • Portability—the configuration of the Watchman SF6 gives users the ability to plug and play as needed among multiple units in service
  • Identify SF6 gas leaks and monitor repairs
  • 24/7 remote access via the communication module
  • Condition monitoring—perform preventive maintenance during scheduled shutdowns.
  • Eliminates unexpected nuisance alarms and the potential for lockout

Design Confidence

Solon’s design team provides efficient, low-cost density monitoring solutions for your sulfur hexafluoride monitor needs. Our engineers continually modify and enhance the designs of our pressure switches to meet the demands of the application. Our quality assurance and testing facilities ensure we produce the highest quality standards in the industry. Continuous improvement in engineering, production, and inspection techniques result in tighter controls in production and enhancements in the quality and consistency of our products.

Contact Solon Manufacturing Co.

Contact us for more information on our portable SF6 gas density monitor needs, or request a quote.