WESEN TECHNOLOGIES

SF6 Gas Density Monitor For SF6 Gas Insulated Switchgear (GIS)

Product variants

Case Diameter	100mm
Scale Range	-1 to 9 bar (customizable)
Accuracy	a) At 20°C: Class 1.0 or 1.5 b) -40°C to +60°C: Class 2.5 (related to the measuring span; SF6 in gas phase)
Degree of Protection	IP65
Ambient Conditions	-40°C to +60°C, relative humidity≤95%RH
Leakage Rate	≤1 × 10-9 Pa·m3/s （Helium leakage inspection)
Process Connection	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 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)
Pressure Element	Bourdon tube imported from Europe
Window Glass	Laminated safety glass
Weight	1 kg
Options	Oil-filled Full Range Indication: Class 1.0 Power-frequency withstand voltage: 2.5kV 50/60 Hz 1min Wide temperature range -60°C to +60°C Can detect SF6, Air, N2, SF6 + N2 and other gases

Applications Of SF6 Gas Density Monitor / Relay

The temperature compensation unit ensures greater accuracy of instrumentation pressure measurement.
Suitable for installation indoor or outdoor.
Hermetically sealed case of stainless steel AISI 304.
AISI 316 stainless steel gas connexion tubes.
The value on site and the output signals are not affected by the external environment (e.g. altitude factor).
Electric contact switch design ensures the accurate and stable gas monitoring system which monitors SF6 gas density.
Up to four gas density switch contacts can achieve overpressure alarm, dual alarm or double lock, and many other solutions to secure and reliable monitoring.

Drawing of WR-100 SF6 Gas Density Monitor / Relay