Reference: UA-002-64

Brand: ONSET

UA-002-64 HOBO Pendant Temperature/Light 64K Data Logger

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A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 52K measurements.  IMPORTANT INFORMATION Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1). HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
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GMS Ground Monitoring System
  • GMS Ground Monitoring System
  • GMS Ground Monitoring System

GMS Ground Monitoring System

GMS

Description

The GMS (Geoelectric Monitoring System) is a permanent stationary monitoring system based on the measurement of changes in soil resistivity using multi-electrode electrical tomography.

Continuous monitoring of resistivity data makes it possible to check the expansion of saturated zones, or in the case of landfills, possible tears of impermeable sheets or diffusion of liquids into the subsoil. It can therefore also be applied in environmental contexts where it is necessary to ensure that certain conditions, such as water content, remain stable, for example in the presence of embankments or impermeable barriers created to mitigate hydraulic and/or flood risk or to mitigate the risk. flood risk. It follows the evolution over time of any cavity, whether natural or anthropogenic.

Applications:

  • landfill monitoring
  • composting plants
  • defense of bank landfills
  • impermeable barriers
Description

Technical Specifications

General

  • ADC technology: 24bit Delta-Sigma ADC
  • Dimensions: 52x65x25 cm
  • Export compatibility: RESinv, ERTlab, ZondRES, MAE
  • Case: IP66
  • Enviromental condition: -20°C / 90°C

Output

  • Power output: 600W
  • Voltage output: ±50V, ±100V, ±200V, ±400V, ±800V
  • Output current: up to 12A at 50V, up to 0.750A at 800V
  • Energization diagram: Custom from 250ms
  • Precision: ±0.2 μA
  • Accuracy: < 0.2%

Input

  • Measurements strategy: Parallel
  • Input voltage: ±25V
  • Precision: 1.5 μV vs fullscale
  • Accuracy: < 0.2 %
  • Input impedance: 2.5MΩ
  • Stacking and noise reduction: Up to 255
  • Input notch filter: 50Hz
  • Self potential adjustment: Automatic
Product Details
GMS
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