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 U20-001-04 and U20-001-04-Ti
Operation Range:
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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
0.6 cm (0.02 ft) water”:
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water
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Maximum error: ±0.15% FS
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:
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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: 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: 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 U20-001-04 or U20-001-04-Ti Water Level Data Logger (13-foot depth)
Contact Us:
– Telp & Whatsapp 0812-1248-2471
– Email alfin@testindo.com
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