Fitur
- Sensor non-kontak memberikan masa pakai yang lama
- Menyediakan akses mudah ke sensor untuk membersihkan dan melepaskan gelembung udara
- Dua rentang yang dapat dipilih pengguna memberikan pengukuran mulai dari 100 hingga 55.000 uS/cm.
- Casing Delrin tidak akan menimbulkan korosi di air asin
- Perangkat lunak HOBOware Pro memungkinkan kalibrasi titik awal/akhir untuk mengkompensasi setiap pengotoran dan menyediakan konversi yang mudah ke konduktansi dan salinitas tertentu menggunakan Skala Salinitas Praktis 1978 (PSS-78)
- Antarmuka optik USB menyediakan pelepasan data salinitas berkecepatan tinggi dan andal di lingkungan basah
- Kompatibel dengan HOBO Waterproof Shuttle untuk pengambilan dan transportasi data yang mudah dan andal
Data logger Konduktivitas/Salinitas HOBO U24 memiliki sensor non-kontak dengan lapisan Titanium Pentoxide. Lapisan ini mencegah sensor bersentuhan dengan air, yang pada gilirannya mencegah noda atau korosi yang terkait dengan sensor elektroda tradisional. Lapisan sensor ini juga lembam, memungkinkan pengotoran mudah dibersihkan dari sensor.
Spesifikasi
Measurements: Actual Conductivity, Temperature, Specific Conductance at 25C (calculated), Salinity (calculated using PSS-78, the Practical Salinity Scale 1978)
Conductivity Measurement Range (Calibrated Range)
High range: 5000 to 55,000 uS/cm
Low range: 100 to 10,000 uS/cm
Over the range of 5 to 35C (41 to 95F)
Temperature Measurement Range: 5 to 35C (41 to 95F)
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; waters with greater variation can have substantially greater error (see Plot C)
Conductivity Resolution: 2 uS/cm
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 36C (28 to 97F) – 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 housing, 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.
CE compliance: The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).
Ulasan
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