Características destacadas
Protección contra rayos - no hay cables de señal largos, y la electrónica está blindada en una carcasa de acero inoxidable para su uso en agua dulce (consulte el dibujo de ubicación del sensor del registrador de nivel de agua).
El software HOBOware Pro proporciona una fácil conversión a una lectura precisa del nivel de agua, totalmente compensada por la presión barométrica (ver demo), la temperatura y la densidad del agua.
El muestreo de velocidad múltiple (ver demostración) permite un muestreo más rápido en momentos críticos, como cuando se inicia o se detiene el bombeo.
Disponible en 4 gamas de profundidad
Ideal para su uso en pozos, arroyos, lagos, humedales y zonas de mareas.
Diseño sin tubo de ventilación para un despliegue fácil y fiable
Disponible en versiones de acero inoxidable y titanio
Sensor de presión de cerámica de larga duración
Incluye certificado de calibración de 3 puntos rastreable por el NIST
El registrador de datos U20-001-04 soporta las siguientes mediciones: Presión absoluta, presión barométrica, temperatura y nivel de agua
| Pressure and Water Level Measurements U20-001-04 and U20-001-04-Ti |
| Operation Range |
0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude |
| Factory Calibrated Range |
69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F) |
| Burst Pressure |
310 kPa (45 psia) or 18 m (60 ft) depth |
| Water Level Accuracy* |
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water
Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water |
| Raw Pressure Accuracy** |
±0.3% FS, 0.43 kPa (0.063 psi) maximum error |
| Resolution |
<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water |
| Pressure Response Time (90%)*** |
<1 second; measurement accuracy also depends on temperature response time |
| Temperature Measurements (All Models) |
| Operation Range |
-20° to 50°C (-4° to 122°F) |
| Accuracy |
±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F), see Plot A in manual |
| Resolution |
0.10°C at 25°C (0.18°F at 77°F), see Plot A in manual |
| Response Time (90%) |
5 minutes in water (typical) |
| Stability (Drift) |
0.1°C (0.18°F) per year |
| Logger |
| Real-time Clock |
± 1 minute per month 0° to 50°C (32° to 122°F) |
| Battery |
2/3 AA, 3.6 Volt lithium, factory-replaceable |
| Battery Life (Typical Use) |
5 years with 1 minute or greater logging interval |
| Memory (Non-volatile) |
64K bytes memory (approx. 21,700 pressure and temperature samples) |
| Weight |
Stainless steel models: approximately 210 g (7.4 oz)
Titanium models: approximately 140 g (4.8 oz) |
| Dimensions |
2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter |
| Wetted Materials |
316 stainless steel, Viton® o-rings, acetyl cap, ceramic sensor |
| Logging Interval |
Fixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOware software manual. |
| Launch Modes |
Immediate start and delayed start |
| Offload Modes |
Offload while logging; stop and offload |
| Battery Indication |
Battery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile. |
| Environmental Rating |
IP68 |
|
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The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). |
* Water Level Accuracy: With accurate reference water level measurement, known water density, accurate Barometric Compensation Assistant data, and a stable temperature environment.
