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SF6Gas Insulated Switchgear (GIS)
SF6 Insulated Circuit Breakers
SF6 Insulated Pole-Mounted Switch
SF6 Insulated Transformer
SF6 Insulated Mutual Inductor
SF6 Gas Insulated Busbar Systems
The temperature compensator ensures greater accuracy of instrumentation pressure measurement.
Perfect mechanical and electronic combination, local indication and instrumentation control. The precise mechanical structure allows the electronic signal to be transmitted in real time.
RS485 bus interface, system expansion facilitating, remote control and remote control. High capacity for anti-electromagnetic interference.
Suitable for installation indoor or outdoor.
Hermetically sealed case of stainless steel AISI 304
AISI 316 stainless steel gas connecting tubes
The display value and output signals on the screen are independent of the external impact, such as altitude
To achieve a maximum of four switch contacts, an overpressure alarm, dual alarm or double locking and many other options make gas density monitor safer and more reliable
| Case diameter: | 100mm |
| Scale range: | -0.1 to 0.9MPa (customizable) |
| Accuracy: | (related to the measuring span; SF6 in gas phase) |
| a) At 20°C: | Class 1.0 or 1.5 |
| b) -40°C to +60°C: | Class 2.5 |
| Degree of protection: | IP65 |
| Ambient conditions: | -40°C to +60°C, relative humidity ≤95%RH |
| Leakage rate: | ≤ 1 × 10-9 Pa·m3/s (helium leak check) |
| Interface size: | M20 × 1.5 (customizable) |
| Installation method: | radial or axial |
| Electrical connection: | Plug-in connection M20 × 1.5 sealing head |
| cable size: | 1.5mm2 recommended, 2.5mm2 maximum |
| Insulation properties: | |
| Insulation resistance: | >100 MW (DC 500V) |
| Withstand voltage: | 2kV, 50/60 Hz 1 min |
| Contact type: | Magnetic snap-action switch |
| 80%Ag, 20%Ni, 10µm Au plated | |
| Impact rating: | 50g (oil-filled), 30g (non-oil-filled) |
| Contact electrical parameters: | 30W/50VA, 1A (maximum) |
| 220VDC/380V 50/60Hz (maximum) | |
| Watch glass: | Laminated safety glass |
| Weight: | 1.2kg |
| Pressure-sensitive component: | imported Bourdon tubes |
Main electrical performance indicators and specifications of the remote transmission part
| Power supply: | DC 24V |
| Power consumption: | < 2W |
| Communication mode: | RS485 |
| Protocol: | ModBus RTU |
| Baud rate: | 9600bps |
Anti-electromagnetic interference
| IEC61000-4-2: | level 4 (15kV) |
| IEC61000-4-3: | level 3 (10V / m) |
| IEC61000-4-4: | level 4 (4kV) |
| IEC61000-4-5: | level 3 (+/- 2kV) |
| IEC61000-4-6: | level 3 (10V) |
| IEC61000-4-8: | level 5 (100A / m) |
Power-frequency withstand voltage: 2.5kV 50/60 Hz 1min
Oil-filled
Measuring medium: SF6, Air, N2, SF6 + N2 and other gases
