Water level recorder kit (30m) KIT-S-U20-02

The KIT-S-U20-02 is a solution complete, economic and ready for use to effectively monitor water levels up to 30m and temperatures in various aquatic environments, from well to streams lakes to freshwater wetlands, and even tidal zones.

This kit includes:
- HOBO data recorder U20-001-02 (range 30m)
- Base station BASE-U-4 with 5 interchangeable couplers
- Software HOBOware Pro

Like other HOBO water level data recorders, the 30m version offers exceptional value and ease of use, without ventilation tubes bulky or desiccants maintenance.
The HOBO data recorder U20-001-02 is specially designed to measure with a high precision on water levels to a depth of 30 metres, it is also able to record pressure variations related to changes in water level, thus providing even more precise measures.
The base station BASE-U-4 insure leakproof communication with the data recorder, enabling the recorded measurements to be recovered reliable. Thanks to its 5 interchangeable couplers, the connection between the recorder and the base station is perfectly waterproof.
Software HOBOware Pro facilitates'data analysis collected by the water level recorder.
He performs accurate conversions data on water level measurements taking into account factors such as barometric pressure, temperature and water density.
Data for barometric pressure may be obtained from weather station nearby.
This kit offers a set of significant benefits, including: protection against electric surges from the lightning, one sampling frequent for detailed data and pressure sensor en ceramics robust for extremely accurate measurements of water levels.
With the KIT-S-U20-01, you have a complete and reliable solution for monitoring aquatic environments, allowing you to take proactive action based on the data collected!

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 400 kPa (0 to 58 psia), approximately 0 to 30.6 m (0 to 100 ft) water depth at sea, or 0 to 33.6 m (0 to 111 ft) water at 3,000 m (10 000 ft) altitude
- factory calibrated range: 69 to 400 kPa ( 10 to 58 psia), 0° to 40°C (32° to 104°F)
- Breaking pressure: 500 kPa (72.5 psia) or 40.8 m (134 ft) deep
- Water level accuracy*:
Typical error: - 0.05% FS, 1.5 cm (0.05 feet) water
Maximum error: - 0.1 % FS, 3 cm (0.1 feet) water
Gross pressure accuracy**: 0.3% FS, 1.20 kPa (0.17 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