China 63mm 2.5 Dia SF6 Gas Density Monitor -0.1 to 0.1 MPa - China Suppliers Factory for High-Voltage Equipment Manufacturer, Factory

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The SF6 Gas Density Monitor, also known as the SF6 gas density indicator or manometer, is a high-precision instrument designed specifically for monitoring the density of SF6 gas in high-voltage electrical equipment. This device features advanced automatic temperature compensation, dual alarm systems, and lockout functions, making it ideal for applications in Gas Insulated Switchgear (GIS), circuit breakers, and transformers. As a leading product among suppliers in China, our factory ensures that each unit meets stringent quality standards.

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Monitoring gas density is vital for the safe operation of high-voltage switchgear systems. Insufficient gas density can compromise the reliability of electrical plants. Our SF6 gas density measuring instruments provide accurate detection of gas volume changes, allowing for the identification of leaks—even in extreme environmental conditions.

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Designed for durability, the SF6 gas density monitor is hermetically sealed and temperature-compensated. This ensures that fluctuations and inaccuracies caused by variations in ambient temperature or atmospheric pressure are minimized. Users can conveniently read the pressure based on 20 °C [68 °F] directly on the on-site display, making it an essential tool for electrical equipment maintenance and safety. Choose our SF6 gas density monitor for reliable performance and peace of mind from a trusted China factory.

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Product Description

Product Specifications
Nominal size: 63mm
Scale range: -0.1 to 0.1 MPa (customized range as per request)
Accuracy: 20℃: Class 1.0 or 1.6
-20℃ to +60℃: Class 2.5
-30℃ to -20℃: Class 3.0
Degree of protection: IP65
Ambient conditions: -30℃ to +60℃
Leakage rate: < 1*10-9 Pa.m³/s (Helium mass spectrometer)
Pressure connector: G1/4'', NPT 1/4'', M20*1.5 (customized)
Location: Center back
Electrical connection: Compact plug cable box with M20*1.5 cable gland
Cable size: 1.5mm; 2 recommended; 2.5mm maximum
Insulation properties: Insulation resistance >100 MΩ (500V DC)
Withstand voltage 2kV, 50/60 Hz 1 min (to case)
Contact type: Pointer driven magnetic snap action signal contacts
80%Ag, 20%Ni, 10μm Au plated
Contact ratings: 30W/50VA, 1A max; 220VDC/380V 50/60Hz max
Window: Safety glass or instrumental glass
Weight: 0.5 KG
Core Characteristics and Advantages
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Temperature Compensation Automatically adjusts for thermal effects using bi-metal strips or digital sensors, providing stable readings at varying temperatures.
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Dual Set Points Configurable alarm and lockout contacts trigger signals when gas density drops below preset thresholds, enabling timely maintenance or system shutdown.
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Robust Design Available in all-stainless steel construction with optional oil filling for enhanced shock and vibration resistance.
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Correctly Reflect Density Changes By detecting whether SF6 gas is leaking. When a gas chamber leaks, the density indicated by the gas density meter decreases, triggering an alarm signal, alerting the operators to take timely measures to ensure operational safety.
Typical Application Fields
High-Voltage Circuit Breakers
Gas-Insulated Switchgear (GIS)
Transformers & Instrument Transformers
Guarding Electric Power Safety
Chemical Industry
Petroleum Industry
Pharmaceutical Industry
Frequently Asked Questions (FAQ)
Q What is the standard nominal size of this SF6 gas density meter?
The standard nominal size is 63mm. This compact form factor makes it suitable for installation in a wide range of switchgear and high-voltage equipment without requiring significant space modifications.
Q How does the temperature compensation feature work?
The gas density meter uses bi-metal strips or digital sensors to automatically compensate for temperature-induced pressure variations. This ensures accurate density readings regardless of ambient temperature fluctuations within the rated range of -30℃ to +60℃.
Q What protection rating does this gas density meter carry, and what does it mean?
The meter is rated IP65, meaning it is fully dust-tight and protected against low-pressure water jets from any direction. This makes it reliable for use in outdoor substations and industrial environments where dust and moisture may be present.
Q Can the pressure connector type and scale range be customized?
Yes. The pressure connector is available in G1/4'', NPT 1/4'', and M20*1.5 configurations, with further customization available upon request. The scale range (-0.1 to 0.1 MPa as standard) can also be tailored to meet specific application requirements.
Q What happens when SF6 gas leaks in a gas chamber?
When SF6 gas leaks from a gas chamber, the gas density decreases. The density meter detects this change and triggers an alarm signal via the dual set-point contacts. This alerts operators to take immediate corrective action, helping to maintain safe and reliable operation of the electrical system.
Q What industries and equipment types is this gas density meter suitable for?
This gas density meter is widely used in high-voltage circuit breakers, gas-insulated switchgear (GIS), transformers, and instrument transformers for electric power safety. Beyond power systems, it is also applicable in the chemical, petroleum, and pharmaceutical industries where accurate gas density monitoring is critical.

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