What Is SF6 Environmental Gas Density Meter?

Sep 12, 2025

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What is SF6 Environmental Gas Density Meter?

 

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The density monitor employs a spring tube and a bimetallic strip (temperature compensation) as its primary sensing components. It is designed to control and monitor the density of gas in sealed containers, enabling on-site display of the gas density inside the equipment. Widely applicable in SF6 circuit breakers, ring main units, gas-insulated switchgear, eco-friendly gas-insulated cabinets, pole-mounted switches, and transformers, it ensures the safe operation of the equipment.

 

 

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• Featuring a stainless steel exterior and gas path connectors, the product boasts an aesthetically pleasing appearance and a high protection rating.

• Equipped with imported temperature-sensing components, it ensures high accuracy and stable performance.

• Utilizing silver brazing and laser welding techniques, it undergoes helium mass spectrometry leak detection to guarantee superior sealing performance.

• With multiple interface connection options, it is compatible with various self-sealing valves and suitable for diverse SF6 and eco-friendly gas-insulated switchgear equipment domestically and internationally.

 

Technical Parameters

Parameter

Specification

Measuring Range

Gauge Pressure: -1.0 to 1.0 bar
Absolute Pressure: 0 to 2.0 bar

Accuracy Class

Class 1.5 (at 20°C)
Class 2.5 (from -40°C to 60°C)

Connection Thread

M24x1.5

Operating Environment

-40°C to 60°C

Relative Humidity

≤ 95%

Protection Level

IP67

Impact Resistance

300 m/s²

Vibration Resistance

20 m/s²

Dielectric Strength

AC 2000 V/min, 50/60 Hz

Insulation Resistance

≥ 100 MΩ

Annual Leakage Rate

≤ 1×10⁻⁹ bar·m³/s

Contact Capacity

AC/DC 250V, 50 VA / 30 W

Maximum Operating Voltage

AC 380 V

 

 

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Conclusion

The SF6 eco-friendly gas density gauge is a precision device that integrates pressure sensing, temperature compensation, and electrical signal output. Its core function is to continuously monitor the density of insulating gas in sealed electrical equipment, ensuring that the insulation strength remains above safe levels. It promptly issues alarms and lockout signals when density falls below the threshold, making it an indispensable "guardian" for ensuring the safe and stable operation of power systems.