Monitor SF₆ Gas Density with Precision and Reliability: Introducing the FXM100 Series Gas Density Relay
In the world of high-voltage electrical infrastructure, maintaining the integrity of SF₆ gas insulation is critical. A drop in gas density can lead to reduced insulation strength, potential equipment failure, and costly unplanned outages. The FXM100 Series SF₆ Gas Density Monitor is specifically designed to solve this core problem: continuous, accurate monitoring of SF₆ gas density in sealed compartments. It ensures operational safety and reliability by providing real-time density readings and triggering alerts before performance is compromised. This essential device is widely used in SF₆-insulated equipment such as Gas-Insulated Switchgear (GIS), circuit breakers, pole-mounted switches, and current transformers.
Beyond Just a Gauge: Intelligent Monitoring for Critical Assets
Unlike a simple pressure gauge, the FXM100 incorporates a built-in temperature compensation mechanism. This key feature allows it to display the true density (P₂₀ value) directly on its dial, regardless of ambient temperature fluctuations. This means operators get an accurate picture of the actual gas mass inside the vessel, not just a pressure reading that changes with temperature.
Engineered for Demanding Environments
Built to perform in tough conditions, the FXM100 boasts an IP66 protection rating, making it resistant to dust and powerful water jets. It operates reliably across a wide temperature range of -40°C to +60°C, even in high humidity (≤95% RH). Its robust construction ensures excellent resistance to vibration and shock, guaranteeing stable performance in substations or on electrical distribution networks.
Clear Alerts for Proactive Maintenance
The core function of the relay is to monitor and alert. When the SF₆ gas density falls to a pre-set threshold, its internal magnetic latching contact switch changes state, sending a clear electrical signal. This signal can be integrated into SCADA systems or local control panels, immediately notifying maintenance teams of a potential gas leak or density loss. This enables proactive scheduling of refilling or maintenance, preventing unexpected downtime.
Key Specifications at a Glance:
Measurement Range: -0.1 to 0.9 MPa (customizable)
Accuracy: High precision at 20°C, with reliable performance across the full temperature range.
Electrical Contacts: Magnetic latching type, suitable for signals up to 1A, 220V DC / 380V AC.
Leakage Rate: Exceptionally low seal leakage, ensuring long-term monitoring stability.
Interfaces: Standard M20×1.5 or G½ (customizable).
The FXM100 Series SF₆ Gas Density Relay is more than a component; it's a guardian of system integrity. By providing accurate, temperature-compensated density data and reliable alarm signals, it forms a vital part of any predictive maintenance strategy for SF₆-insulated high-voltage equipment, ensuring safety, reliability, and grid stability.
