Water level recorder kit (9m) - KIT-S-U20-01

The kit water level recorder (up to 9m) KIT-S-U20-01 is a starter kit economic and ready for use to monitor water levels and temperatures in miscellaneous aquatic environments, such as well streams lakes freshwater wetlands and tidal zones.
The kit includes a data recorder HOBO U20-001-01, one base station and software HOBOware Pro.
The HOBO data recorder U20-001-01,is specially designed to measure the water level with one high precision to a depth of 9 metres.
It is also able to record pressure variations related to changes in water levels for even more precise measurements.
The base station BASE-U-4 is the device which communication with the data recorder to recover the recorded measures.
The 5 interchangeable couplers enable the recorder to be connected to the base station in a perfect way waterproof.
Software HOBOware Pro allows'analyse the data collected by the water level recorder.
It converts data into specific measures water level taking into account factors such as barometric pressure, the temperature and water density.
Barometric pressure data can be obtained from a weather station nearby.
The kit offers several advantages, for example it offers a protection against lightning and avoids the use of long signal wires, as electronics is housed in a stainless steel case.
THE'multirate sampling data, which may be essential for major changes, such as start or'stop of the pumping.
It is equipped with a pressure sensor en ceramics robust for precise measurement and sustainable water levels.

Technical specifications:

- Protection against lightning, no long signal wires and electronics is protected in a stainless steel case
The HOBOware Pro software allows easy conversion into accurate water level reading, fully compensated for barometric pressure, temperature and water density (use barometric pressure data from the nearby weather station).
Multiple rate sampling allows faster sampling at critical times, such as when pumping starts or stops.
- Available in four deep beaches
- Ideal for use in wells, streams, lakes, wetlands and tidal areas
- Aeration tube-free design for easy and reliable deployment
- Durable ceramic pressure sensor

Pressure sensor features:

- Operating range of the pressure sensor: 0 to 207 kPa (0 to 30 psia), approximately 0 to 9 m (0 to 30 ft) water depth at sea, or 0 to 12 m (0 to 40 ft) water at 3,000 m (10 000 ft) altitude
- factory calibrated range: 69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)
- Breaking pressure: 310 kPa (45 psia) or 18 m (60 ft) deep
- Water level accuracy*:
Typical error: - 0.05 % FS, 0.5 cm (0.015 ft) water
Maximum error: - 0.1 % FS, 1.0 cm (0.03 ft) water
Gross pressure accuracy**: 0.3% FS, 0.62 kPa (0.09 psi) maximum error
Resolution: Pressure response time: 90% Thermal response time (90%)†: approximately 10 minutes in water to obtain a complete compensation of pressure sensor temperature

* With accurate measurement of the reference water level and barometric compensation assistant data
** The absolute pressure sensor accuracy includes all errors induced by pressure drift, temperature and hysteresis
† The maximum error due to rapid thermal change is about 0.5%

Temperature sensor features:

- Operating range: -20° to 50°C (-4° to 122°F)
- Accuracy: 0.37°C to 20°C (0.67°F to 68°F), see track A
- Resolution: 0.1°C to 20°C (0.18°F to 68°F) (10 bits)
- Response time (90%): 3.5 minutes in water (typical)
- Stability (driving): 0.1°C (0.18°F) per year

Recorder Features:

- 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 autonomy (typical use): 5 years with 1 recording interval of one minute or more
- Memory (non-volatile): 64 KB memory (approximately 21,700 pressure and temperature samples)
- Dimensions: 2.46 cm (0.97 inches) in diameter, 15 cm (5.9 inches) in length; 6.3 mm (0.25 inches) diameter mounting hole
- Weight: approximately 210 g (7.4 oz)
- Materials in contact with the fluid: stainless steel 316, Viton® O-rings, acetyl cap, ceramic sensor
- Shock/fall:
The recorder is shock sensitive.
Handle carefully and avoid any impact.
Always use appropriate packaging when shipping the recorder.
- Journaling interval: fixed or multiple rate logging intervals, with up to 8 intervals and user-defined logging times, recording intervals from 1 second to 18 hours.
Refer to the HOBOware software manual.
- Launch modes: Immediate start and delayed start
- Method of unloading: Unload during logging, Stop and unload
- Indication of battery:
The battery voltage can be viewed in the status screen and possibly stored in the data file.
Low battery indication in the data file.
- Environmental index : IP68