Research Article
Year-Round Experimental Analysis of the Productivity of Vapour-Based Multistage Solar Still: A Developmental Study
Table 1
Error data for instruments used.
| Instrument name | Make/model | Range | Accuracy | Error (%) |
| (1) 12 channels temp, data logger | BTM-4208SD | −50 to 999.9°C | | 1.5 | (2) Thermocouples | (2.1) Surface probes | Type K | −100 to 250°C | 0.1°C | 0.5 | (2.2) Immersion probes | SJ-100/K505B3 | −190°C to 260°C | 0.1°C | 0.5 | (3) Wireless weather station | (3.1) Wind speed | HP2000 | 0 to 50 m/s | 1 m/s (speeds <5 m/s) 10% (speeds >5 m/s) | 4.3 | (3.2) Ambient air temperature sensor | −30 to 65°C | 1°C | 2.1 | (3.3) Solar radiation | 0 to 3157 W/m2 | 15% | 3 | (4) Graduated cylinder | Simax | 0 to 1000 ml | 10 ml | 10 |
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