Air Laut
Data logger yang ekonomis untuk mengukur salinitas, konduktivitas, dan suhu di lingkungan air laut dengan perubahan salinitas relatif kecil (±5.000 μS/cm).
| Measurements | Actual Conductivity, Temperature, Specific Conductance at 25°C (calculated), Salinity (calculated using PSS-78, the Practical Salinity Scale 1978) |
| Conductivity Measurement Ranges | Low range: 100 to 10,000 µS/cm High range: 5,000 to 55,000 µS/cm |
| Conductivity Calibrated Range – Temperature Range | 5° to 35°C (41° to 95°F) |
| Conductivity Extended Ranges | Low range: 100 to 10,000 µS/cm High range: 5,000 to 55,000 µS/cm (Readings below these ranges reported as 0) |
| Temperature Measurement Range | -2° to 36°C (28° to 97°F) |
| Specific Conductance Accuracy (in Calibrated Range using Conductivity Assistant and Calibration Measurements) | Low range: 3% of reading or 50 µS/cm, whichever is greater
High range: 5% of reading, in waters within a range of ±3,000 µS/cm; |
| Conductivity Resolution | 2 µS/cm (typical) |
| Temperature Accuracy | 0.1°C (0.2°F) at 25°C (77°F) |
| Temperature Resolution | 0.01°C (0.02°F) |
| Conductivity Drift | Up to 12% sensor drift per month, exclusive of drift from fouling. Monthly start- and end-point calibration should be used with the HOBOware Conductivity Assistant to achieve the specified Specific Conductance accuracy. |
| Response Time | 1 second to 90% of change (in water) |
| Operating Range | -2° to 36°C (28° to 97°F) – non-freezing |
| Memory | 18,500 temperature and conductivity measurements when using one conductivity range; 11,500 sets of measurements when using both conductivity ranges (64 KB total memory) |
| Sample Rate | 1 second to 18 hrs, fixed or multiple-rate sampling with up to 8 user-defined sampling intervals |
| Clock Accuracy | +/- 1 minute per month |
| Battery Life | 3 years (@ 1 min logging) |
| Maximum Depth | 70 m (225′) |
| Weight | 193 gm (6.82 ounces), buoyancy in freshwater: -59.8 gm (-2.11 ounces) |
| Size | 3.18 cm diameter x 16.5 cm, with 6.3 mm mounting hole (1.25″ diameter x 6.5″, ¼” hole) |
| Wetted Housing Materials | Delrin®, epoxy, stainless steel retaining ring, polypropylene, Buna rubber O-ring, titanium pentoxide (inert coating over sensor) – all materials are suitable for long-term use in saltwater. |
| Environmental Rating | IP68 |
