SF6 Gas Density Monitor, DN63
Sheet No.: 1-992 GB
The gas density monitor is used where
a specific density is needed to make a “stand
alone” sealed system function according to
the performance of the system. During
installation and filling of the system the
temperature of the gas and the instrument
should be almost equal.
Practical use of the monitor:
Sealed pressurised casings for high voltage
switchgear, high power transformers and
submerge power and telecommunication
cables filled with gas i.e. SF6-gas.
Accuracy:
1% at ambient temperature +20°C
2.5% at ambient temperature -20 to +60 °C
With calibration pressure in accordance with reference isochor
(Reference diagram Sulphur Hexafluoride by Dr. Döring 1979)
Range:
-1 to +1 bar
Permissible ambient temperature:
Operating temperature: -20+60°C
Storage temperature: -50+60°C
Contact:
Switch point 0,016 MPa
Maximum switching voltage: 250V
Switching power: 30V/50VA max 1A
High voltage test:
2kV, 50Hz, 1s (wiring against case)
Wiring:
Classification: ETIM 5.0
Class-ID: EC000104,ETIM 5.0
Conductor design: Fine wire according to DIN EN 60228 (VDE 0295), class 5 / IEC60228 class 5
Torsion application in WTG: TW-0 & TW-1, refer to appendix T0
Minimum bending radius: Occasional flexing: 10 x outer diameter
In power chains: 15 x outer diameter
Fixed installation: 4 x outer diameter
Temperature range: Occasional flexing: -15°C to +70°C
In power chains: -5°C to +70°C
Fixed installation: -40°C to +80°C
Nominal voltage: U0/U: 300/500 V
Test voltage: 4000 V
Pressure system leak test:
Leak tightness < 1 x 10^-7 mbar x l/s Helium leakage detection test.
Process connection:
Dilo coupler
