Data logger pH ini dirancang untuk pemantauan jangka panjang di estuari, danau, sungai, dan laut. Dengan teknologi Bluetooth dan aplikasi HOBOconnect, proses pengaturan, kalibrasi, dan pengunduhan data menjadi lebih cepat dan mudah melalui perangkat mobile atau komputer. Logger yang ringkas dan terjangkau ini menghasilkan data beresolusi tinggi serta memungkinkan akses data dari mana saja melalui MX Data Plan dan platform LI-COR Cloud.
Housing PVC yang kokoh
Sistem deteksi air
Elektroda pH potensiometrik dengan bodi plastik, elektrolit gel, dan junction kain ganda
Baterai, elektroda pH, dan pelindung tembaga anti-biofouling dapat diganti oleh pengguna
Akurasi ±0,10 unit pH dalam rentang ±10°C dari suhu saat kalibrasi
pH Sensor |
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| Specifications | pH | mV |
| Range | 2.00 to 12.00 pH | -512 to 512 mV |
| Accuracy | ±0.10 pH units within ±10°C of temperature at calibration | ±0.20 mV |
| Resolution | 0.01 pH | 0.02 mV |
| Response Time | 1 minute typical to 90% at constant temperature in stirred water | |
| Sample Ionic Strength | ≥ 100 µS/cm | |
Temperature Sensor |
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| Range | -2° to 50°C (28.4° to 122°F) | |
| Accuracy | ±0.2°C (±0.36°F) | |
| Resolution | 0.024°C at 25°C (0.04°F at 77°F) | |
| Response Time | 7 minutes typical to 90% in stirred water | |
Logger |
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| Operating Range | -2° to 50°C (28.4° to 122°F) — non-freezing | |
| Depth Rating | IP68; waterproof to 40 m (131 ft) | |
| Water Detection | Water conductivity level of 100 µS/cm or greater is necessary for reliable detection of water. Deionized water or water below 100 µS/cm may not be detected. The water conductivity circuit may not reliably detect water that has frozen around the electrodes, i.e. below 0°C (32°F). |
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| Radio Power | 1 mW (0 dBm) | |
| Transmission Range | Approximately 30.5 m (100 ft) line-of-sight in air | |
| Wireless Data Standard | Bluetooth Low Energy (Bluetooth Smart) | |
| Logging Rate | 1 second to 18 hours | |
| Logging Modes | Fixed interval (normal, statistics) or burst | |
| Memory Modes | Wrap when full or stop when full | |
| Start Modes | Immediate, push button, date & time, or next interval | |
| Stop Modes | When memory is full, push button, date & time, or after a set logging period | |
| Time Accuracy | ±1 minute per month at 0° to 50°C (32° to 122°F) | |
| Battery Type | One AA 1.5 Volt, user-replaceable | |
| Battery Life | 1 year typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always On selected in software. 2 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Off Water Detect enabled in software. 3 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off selected in software. Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life. |
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| pH Electrode Typical Minimum Life | 6 months in sample with ionic strength ≥ 100 µS/cm | |
| Memory | 152 KB (43,300 measurements, maximum) | |
| Full Memory Download Time | Approximately 60 seconds; may take longer the farther the mobile device is from the logger | |
| Dimensions | Approximately 60 seconds; may take longer the farther the mobile device is from the logger | |
| Weight | 268.2 g (9.46 oz) | |
| Buoyancy | Fresh water: 13.6 g (0.48 oz) negative Salt water: 19.6 g (0.69 oz) negative |
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| Wetted Materials | Logger: PVC housing and sensor end cap, polycarbonate closure caps and mounting end cap with a TPE switch pH electrode: plastic-bodied with Pellon® junctions and gel electrolyte, glass pH sensor bulb |
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The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). | |
