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Accuracy of the measuring instruments.
| Measure object | Instrument | Accuracy |
|---|---|---|
| Velocity | 3-D Cobra probe | ±0.5 m/s |
| Reference velocity | Pitot-tube and Micro-manometer ( DMP301N22) | ±0.1Paa |
| SF6 concentration | INNOVA 1303 and 1412i, 7620 software | ±2% |
For the reference velocity, the corresponding accuracy in “m/s” is ±0.03 m/s.
