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Measures rainfall to determine rainfall rates, times, and duration; for deployment with most standard tipping-bucket rain gauges.
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Measures rainfall to determine rainfall rates, times, and duration; for deployment with most standard tipping-bucket rain gauges. Efficiently gather and store momentary contact events and temperature data. Additionally, gain access to detailed event data, which is only stored at the time of event, for better memory usage. For accurate temperature measurement in sunlight, a solar radiation shield is required (assembly-required RS1 Solar Radiation Shield or pre-assembled M-RSA Solar Radiation Shield).
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Highlighted Features
For a self-contained rainfall logger, see the HOBO RG3 which includes a data logger integrated into a tipping-bucket rain gauge.
In what environment does this data logger operate?
This data logger operates in indoor and outdoor environments.
What measurements does this data logger support?
The UA-003-64 data logger supports the following measurements: Event, Rainfall and Temperature
| External Event Input | |
| Event Sensor: | Two-wire interface suitable for measuring mechanical and electrical contact closures |
| Maximum input frequency: | 1 Hz (1 pulse per second) |
| Lockout time: | 500 ms |
| Minimum pulse width: | 1 ms (hardware debounce) |
| Input/output impedance: | 100 kΩ |
| Edge detection: | Falling edge, contact closure, or Schmitt-trigger buffer |
| Preferred switch type: | Normally open. For maximum battery life, the event input should be used with its preferred switch type. The logger will work with normally closed switches, but battery life will be compromised. |
| Open circuit input voltage: | Battery voltage; nominally 3.0 V |
| Maximum input voltage: | Battery voltage + 0.3 V |
| User connection: | 24 AWG, 2 leads: white (+), black (-) |
| Temperature Measurement | |
| Measurement range: | -20° to 70°C (-4° to 158°F) |
| Accuracy: | ± 0.53°C from 0° to 50°C (± 0.95°F from 32° to 122°F), see Plot A. A solar radiation shield is required for accurate temperature measurements in sunlight. |
| Resolution: | 0.14°C at 25°C (0.25°F at 77°F), see Plot A |
| Drift: | Less than 0.1°C/year (0.2°F/year) |
| Response time: | Airflow of 2 m/s (4.4 mph): 10 minutes, typical to 90% |
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| Logger | |
| Time accuracy: | -20° to 70°C (-4° to 158°F), see Plot B |
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| Environmental rating: | Tested to NEMA 6 and IP67; suitable for deployment outdoors |
| Drop specification: | 1.5 m (5 ft) onto concrete |
| NIST traceable certification: | Available for temperature only at additional charge; temperature range -20° to 70°C (-4° to 158°F) |
| Battery: | CR-2032 3V lithium battery; 1 year typical use |
| Memory: | 64K bytes |
| Materials: | Polypropylene case; stainless steel screws; Buna-N o-ring; PVC cable insulation |
| Weight: | 50 g (1.7 oz.) |
| Dimensions: | 71 x 33 x 23 mm (2.8 x 1.3 x 0.9 inches); 1.8 m (6 ft) cable |
| The CE Marking identifies this product as complying with the relevant directives in the European Union (EU). | |
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