HOBO Salt Water Conductivity/Salinity Data Logger U24-002-C
https://loggerindo.com/produk/salt-water-conductivitysalinity-data-logger-hobo-u24-002-c
deskripsi
HOBO U24-002-C adalah pencatat data yang hemat biaya untuk mengukur salinitas, konduktivitas, dan suhu di lingkungan air asin dengan perubahan salinitas yang relatif kecil (± 5.000 μS / cm) seperti teluk air asin, atau untuk mendeteksi peristiwa salinitas seperti upwelling , hujan badai, dan peristiwa pelepasan. Data dari logger dapat digunakan dengan data dari HOBO U26 Dissolved Oxygen Logger untuk memantau persen saturasi oksigen terlarut.
Catatan: Saat memantau salinitas di perairan dengan variasi lebih dari ± 5.000 uS / cm, lihat keakuratan yang ditunjukkan di Plot C dalam spesifikasi produk untuk menentukan apakah akurasi dapat diterima untuk kebutuhan Anda. Pembacaan kalibrasi bidang bulanan biasanya diperlukan untuk mencapai akurasi terbaik.
fitur
- Non-contact sensor provides long life
- Provides easy access to sensor for cleaning and shedding air bubbles
- Two user-selectable ranges provide measurements from 100 to 55,000 uS/cm.
- The Delrin housing will not corrode in saltwater
- HOBOware Pro software enables start/end-point calibration to compensate for any fouling and provides easy conversion to specific conductance and salinity using the Practical Salinity Scale 1978 (PSS-78)
- USB optical interface provides high-speed, reliable salinity data offload in wet environments
- Compatible with the HOBO Waterproof Shuttle for easy and reliable data retrieval and transport
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
HOBO Fresh Water Conductivity Data Logger U24-001
deskripsi
Logger data konduktivitas tinggi ini adalah cara yang hemat biaya untuk mengumpulkan data kualitas air. HOBO U24 mengukur dan mencatat konduktivitas dan suhu di aliran, danau, dan sumber air tawar lainnya. Logger ini direkomendasikan untuk memantau akuifer untuk intrusi air asin dan limpasan jalan dan pertanian. Akses terbuka produk ini ke sensornya menyederhanakan pembersihan dan pemeliharaan. Sensor non-kontak HOBO U24 meminimalkan kesalahan pengukuran terkait dengan penyimpangan. Selain itu, logger fitur kompensasi drift berbasis perangkat lunak.
Logger data HOBO U24 Conductivity dilengkapi sensor non-kontak dengan lapisan Titanium Pentoxide. Lapisan ini mencegah sensor dari kontak dengan air, yang pada gilirannya mencegah tarnishing atau korosi yang terkait dengan sensor elektroda tradisional. Lapisan sensor ini juga lembam, memungkinkan pengotoran dengan mudah dibersihkan dari sensor.
fitur
- Non-contact sensor provides long life and less measurement drift
- Provides easy access to sensor for cleaning and shedding air bubbles
- HOBOware Pro software enables start/end-point calibration to compensate for any fouling and provides easy conversion to specific conductance and salinity
- USB optical interface provides high-speed, reliable data offload in wet environments
- Compatible with the HOBO Waterproof Shuttle for easy and reliable data retrieval and transport
Negara asal untuk produk ini adalah Amerika Serikat. Untuk melihat spesifikasi lengkap untuk produk ini, silakan lihat manual produk kami yang ditemukan di bawah tab dokumentasi jika tersedia
spesifikasi
| Measurements | Actual Conductivity, Temperature, Specific Conductance at 25°C (calculated) |
| Conductivity Calibrated Measurement Ranges | Low Range: 0 to 1,000 µS/cm Full Range: 0 to 10,000 µS/cm |
| Conductivity Calibrated Range – Temperature Range | 5° to 35°C (41° to 95°F) |
| Conductivity Extended Ranges | Low Range: 0 to 2,500 µS/cm Full Range: 0 to 15,000 µS/cm |
| Temperature Measurement Range | -2° to 36°C (28° to 97°F) |
| Specific Conductance Accuracy (in Calibrated Range) | Low Range: 3% of reading, or 5 µS/cm, and Full Range: 3% of reading, or 20 µS/cm, whichever is greater, using Conductivity Data Assistant and calibration measurements |
| Conductivity Resolution | 1 µS/cm |
| Temperature Accuracy | 0.1°C (0.2°F) at 25°C (77°F) |
| Temperature Resolution | 0.01°C (0.02°F) |
| Conductivity Drift | Less than 3% sensor drift per year, exclusive of drift from fouling |
| 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 | 3.6 Volt lithium battery |
| Battery Life | 3 years (at 1 minute logging) |
| Maximum Depth | 70 m (225 ft) |
| Weight | 193 g (6.82 oz), buoyancy in freshwater: -59.8 g (-2.11 oz) |
| Size | 3.18 cm diameter x 16.5 cm, with 6.3 mm mounting hole (1.25 in. diameter x 6.5 in., 0.25 in. hole) |
| Wetted Housing Materials | Delrin®, epoxy, stainless steel retaining ring, polypropylene, Buna rubber O-ring, titanium pentoxide (inert coating over sensor) |
| Environmental Rating | IP68 |
| The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). |