Description
Features
- Lightning protection – no long signal wires, and electronics are shielded in a metal housing
- HOBOware Pro software provides easy conversion to accurate water level reading, fully compensated for barometric pressure, temperature, and water density
- Multiple-rate sampling allows faster sampling at critical times such as when pumping starts or stops
- Available in four depth ranges
- Ideal for use in wells, streams, lakes, wetlands, and tidal areas
- No-vent-tube design for easy, reliable deployment
- Available in stainless and titanium versions
- Durable ceramic pressure sensor
- 3-point NIST-traceable calibration certificate included
Specifications
Pressure and Water Level Measurements U20-001-01 and U20-001-01-Ti
Operation Range:
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0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude
Factory Calibrated Range: 69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)
Burst Pressure: 310 kPa (45 psia) or 18 m (60 ft) depth
Water Level Accuracy:
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Typical error: ±0.05% FS, 0.5 cm (0.015 ft) waterMaximum error: ±0.1% FS, 1.0 cm (0.03 ft) water
Raw Pressure Accuracy: ±0.3% FS, 0.62 kPa (0.09 psi) maximum error
Resolution: <0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water
Pressure Response Time (90%): <1 second; measurement accuracy also depends on temperature response time
Temperature Measurements (All Models)
Operation Range:
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-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:
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± 1 minute per month 0° to 50°C32° 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:
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Stainless steel models: approximately 210 g (7.4 oz)Titanium models: approximately 140 g (4.8 oz)
Dimensions:
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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:
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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:
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Battery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile.
Environmental Rating: IP68
What’s in the box
- HOBO U20-001-01 or U20-001-01-Ti Water Level Data Logger (30-foot depth)
Contact Us:
– Telp & Whatsapp 0812-1248-2471
– Email alfin@testindo.com
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