In our company, we frequently engage with global clients, engineers, and procurement specialists about SF₆ gas density monitoring. Here are the most common questions we receive, along with detailed answers to help you make informed decisions.

Q1: What is the key difference between a gas density monitor and a standard pressure gauge? Why does it matter?

A: A standard pressure gauge only reads the instantaneous pressure inside the vessel, which fluctuates significantly with temperature changes. A Gas Density Monitor, like our FXM100 Series, incorporates a built-in temperature compensation mechanism (Bourdon tube or diaphragm system). It automatically corrects for temperature, displaying the density (P₂₀ value) – a direct indicator of the actual mass of SF₆ gas per unit volume. This is critical because the insulating and arc-quenching capability of SF₆ depends on its density, not just pressure. A density reading tells you the true state of your insulation, regardless of whether the equipment is hot from load or cold from ambient conditions.

Q2: We operate in regions with extreme temperatures, from desert heat to arctic cold. Will the FXM100 Gas Density Monitor function reliably?

A: Yes, absolutely. The FXM100 is specifically engineered for this challenge.

• Wide Operating Range: Its -40°C to +60°C specification ensures functionality in virtually all terrestrial climates.

• Temperature-Compensated Accuracy: The core density reading remains accurate across this entire range (e.g., ±2.5% F.S. from -40°C to 60°C). You won't get false alarms from temperature swings.

• Robust Construction: Seals and materials are selected to withstand thermal cycling, and the IP66 rating protects against dust, sand, and moisture in harsh environments.

Q3: What international certifications does the FXM100 hold for export to markets like the EU, the Middle East, or North America?

A: Our products are designed for global deployment. Standard certifications for the FXM100 series typically include:

• CE Marking: Demonstrates compliance with EU health, safety, and environmental protection standards.

• IEC/EN Standards: Conforms to relevant International Electrotechnical Commission standards for electrical measuring equipment.

• Other Region-Specific Certs: Depending on the target market, we can provide or guide you on certifications such as UL/cUL (North America), EAC (Eurasian Customs Union), or GCC (Gulf Cooperation Council). We recommend discussing your specific target markets with our sales team for precise certification details.

Q4: Is the FXM100 suitable for use with gas mixtures like SF₆/N₂?

A: The standard FXM100 is calibrated for pure SF₆ gas. Its temperature compensation curve is optimized for SF₆'s specific properties. If you are using a known, stable gas mixture, custom calibration is possible and must be specified at the time of order. It is crucial to provide the exact gas mixture ratio to ensure accurate density indication and correct alarm triggering.