Van Essen DI284 CTD-Diver Water Level Datalogger Range 200m

The CTD-Diver is ideal for ground and surface water applications.

Where there is a need to monitor groundwater levels and saltwater intrusion, injected wastewater, or contamination from chemical discharges and landfill sites, the CTD-Diver® with its 22 mm diameter rugged, corrosion-proof ceramic (zirconium-oxide) housing, is the instrument of choice. It autonomously measures conductivity, pressure, and temperature and records them in its internal memory. The CTD-Diver is ideal for ground and surface water level applications.

The CTD-Diver is a submersible datalogger for long-term uninterrupted, real-time water level monitoring using a pressure sensor when submerged at a fixed level under the water surface. The pressure sensor measures the equivalent hydrostatic pressure of the water above the sensor diaphragm to calculate the total water depth. The 4-electrode conductivity sensor measures the true or specific electrical conductivity of the water from 0 to 120 mS/cm.

The CTD-Diver can store a maximum of 144,000 measurements (date/time, pressure, temperature, and conductivity) in its working memory and 144,000 measurements in its backup memory.

The CTD-Diver has the following sample methods: fixed length intervals, event-dependent, averaging, and pumping tests. The measurements are stored in fixed length or continuous memory (fixed length only).

Features:

• Innovative ceramic housing technology
• Three sensors in one sealed housing
• Conductivity range up to 120 mS/cm
• Compact size: Ø 22 mm - length 135 mm
• Various measurement methods
• Memory: 144,000 measurements of time stamp, pressure, temperature and conductivity with backup

Benefits:

• Corrosion Proof
• Monitor conductivity, water levels, and temperature
• Suitable for use at most sites
• Easy installation in almost every well
• Event based, averaging and pumping tests sample methods to conserve memory
• Cost effective frequent, long-term measuring
• Reliable and accurate data
• Suitable for wells with deep filters

Applications:

• Pollution monitoring: Landfill leachate monitoring
• Coastal zone aquifer management: Salt water intrusion
• Estuary monitoring:
  • Water quality
  • Tidal fluctuations
• Mining:
  • Tailings: Pollution
  • Environmental: Plume/Leakage
• Remediation:
  • Water quality: Correlate conductivity with permanganate