Table 2. Improvements to Innocor gas analyser rise time.
| Condition | Mean T90 (ms) | SD T90 (ms) | N repeats | Mean (SD) FGD (ms) | ||
| 1 | Standard system (170 cm gas sample line) | 154.6 | 0.95 | 41 | 1376 (3.7) | |
| 2 | Oxigraf removed | 125.5 | 1.2 | 19 | 1026 (2.3) | |
| 3 | Nafion gas sample line length | 150 cm | 121.1 | 1.96 | 25 | 932 (2.6) |
| 130 cm | 119.0 | 2.12 | 23 | 860 (3.7) | ||
| 105 cm | 115.9 | 2.36 | 44 | 782 (3.3) | ||
| 90 cm | 113.6 | 2.11 | 20 | 708 (2.2) | ||
| 4 | Custom-optimised connectors | 88.6 | 1.6 | 28 | 671 (3.6) | |
| 5 | Photoacoustic gas analyser only | 55.9 | 0.65 | 8 | - | |
Effect of modifications to Innocor hardware on rise time (T90) and flow gas delay of SF6 signal. Steps were performed sequentially in the numbered order. FGD - flow gas delay.