This SF6 gas density monitor checks SF6 gas density and pressure in real time. It features high accuracy, strong sealing and anti-vibration performance. Fit for all common SF6 high voltage power equipment.
（1）Multi-port integration: The charging port, micro-water test port, calibration port, and gas shut-off valve port are combined into one for this SF6 gas density monitor.
（2）Reduced leakage risk: Minimizes potential leakage points by eliminating multiple connection points, greatly improving sealing reliability with low leakage performance for SF6 switchgear.
（3）Error-proof operation: Direct calibration of the SF6 gas density relay without extra gas circuit opening and closing steps, avoiding misoperation for RMU and GIS equipment.
（1）Integrated welding construction: Fully automatic argon arc welding makes the SF6 density monitor solid and unified in structure.
（2）Helium mass spectrometer leak detection: All units pass strict helium leak testing, keeping leakage rate ≤ 1×10⁻⁸ mbar·l/s and maintaining long-term low leakage performance.
（3）Advanced sealing technology: Special seal design for dial glass and contact leads stops oxidation, prolongs service life, and keeps stable sealing and testing accuracy for high voltage SF6 equipment.
（1）Compact form factor: Small size design allows this SF6 gas density relay to fit most common SF6 electrical equipment.
（2）Extensive specification range: Over 40 standard types are available, matching most local and imported RMU, GIS and high voltage switchgear models.
（3）Customizable contact configuration: 1~3 pairs of contacts (up to 4 pairs optional), with NO and NC types optional, to fit different control system needs of power facilities.
（1）High accuracy and compensation: Adopts high precision design with Class 1.0 accuracy at 20°C and Class 1.6 accuracy from -40°C to +65°C, offering stable temperature compensation for outdoor and indoor use.
（2）Vibration and shock resistance: This SF6 density monitor withstands 20 m/s² vibration and 50g impact, with good anti vibration ability for harsh industrial working environments.
（3）Integrated control and indication: Combines real-time SF6 pressure and density display with electric contact control, easy for daily operation and maintenance of high voltage power equipment.
| Parameter | Details |
|---|---|
| Accuracy Class | Class 1.0 (at 20°C); Class 1.6 (at -40°C ~ +65°C) |
| Contact Rating | AC/DC 250V, 100VA/50W (Micro-switch Type) |
| Sealing Performance | ≤ 1×10⁻⁸ mbar·l/s (Helium Leak Test) |
| Dielectric Strength | Power Frequency Withstand Voltage: 2kV, 1min (Contacts to Ground) |
| Vibration Resistance | 20 m/s² |
| Shock Resistance | 50g |
| Contact Quantity | 1~3 pairs (up to 4 pairs optional), Normally Open/Normally Closed configurable |
| Protection Grade | IP65 |
Custom OEM/ODM services for SF6 gas density monitors are available at Xizi Energy. We support customized pressure settings, contact types, dial designs, and brand logos to match your switchgear specifications. Contact us for tailored solutions.
1. SF6 Pressure Gauge with Alarm Contacts: Our mechanical SF6 pressure gauges are designed for continuous pressure monitoring in RMU and GIS switchgear, available with custom alarm and lockout set points.
2. SF6 Gas Density Relay for GIS Switchgear: High-precision density relays optimized for GIS applications, featuring temperature compensation and dual contact outputs.
3. Guide to SF6 Gas Monitoring in Medium Voltage Switchgear: Read our technical blog to learn more about SF6 density monitoring principles, common applications, and maintenance best practices.
