The Levelogger 5 measures absolute pressure (water pressure + atmospheric pressure) expressed in feet, meters, centimeters, psi, kPa, or bar. The most accurate method of obtaining changes in water level is to compensate for atmospheric pressure fluctuations using a Barologger 5, avoiding time lag in the compensation.
The Barologger is set above high water level in one location on site. One Barologger can be used to compensate all Leveloggers in a 30 km radius and/or with every 300 m change in elevation.
The Levelogger Software Data Compensation Wizard automatically produces compensated data files using the synchronized data files from the Barologger and Leveloggers on site. The Barologger 5 records atmospheric pressure in psi, kPa, or mbar. When compensating submerged Levelogger 5, Edge, Gold or Junior data, Levelogger Software Version 4 can recognize the type of Levelogger and compensate using the same units found in the submerged data file.
The Barologger 5 uses pressure algorithms based on air rather than water pressure, giving superior accuracy. The recorded barometric information can also be very useful to help determine barometric lag and/or barometric efficiency of the monitored aquifer.
- Pressure Sensor: Piezoresistive Silicon with Hastelloy Sensor
- Accuracy: +/-0,05 kPa
- Stability of Readings: Superior, low noise
- Units of Measure: psi, kPa, mBar, C, F
- Resolution: 0.002% FS to 0.0006% FS
- Normalization: Automatic Temperature Compensation
- Temp. Comp. Range: -10 to +50°C
- Temperature Sensor: Platinum Resistance Temperature Detector
- Temp. Sensor Accuracy: +/-0,05°C
- Temp. Sensor Resolution: 0,003°C
- Battery Life: 10 Years - based on 1 reading/minute
- Clock Accuracy: +/-1 minute/year (-20°C to 80°C)
- Operating Temperature: -20°C to 80°C
- Maximum # Readings: 150.000
- Memory: Slate and Continuous
- Communication: Optical Infrared Interface. Conversion to RS-232, USB, SDI-12. Serial at 57.600 bps with USB
- Size: 22 mm x 160 mm
- Weight: 166 grams
- Corrosion Resistance: Baked-on coating using polymerization
technology (inside and out)
- Other Wetted Materials: Delrin, Viton, 316L stainless steel, Hastelloy,
PFAS-free PTFE coating
- Sampling Modes: Linear, Event & User-selectable with Repeat Mode, Future Start, Future Stop, Real-Time View
- Measurement Rates: 1/8 sec to 99 hrs
- Barometric Compensation: Software Wizard and one Barologger 5 in local area (approx. 30 km radius)
