KELLER Series DCX-22 data logging probes

Monday, 01 June, 2020 | Supplied by: Bestech Australia Pty Ltd


The latest KELLER CTD (conductivity, temperature, depth) versions of the DCX level data loggers for depths of up to 200 m are designed for long-term monitoring and can store over 50,000 time-stamped level measurements, as well as associated conductivity and temperature readings. The multipurpose probes have a diameter of 22 mm, making them suitable for sounding tubes with a diameter of 25 mm or greater.

The integrated measuring systems are suitable for checking the ingress of seawater, slurry or fertiliser into groundwater, rivers and lakes, or for performing observation tasks relating to building projects or localised water pollution. The Series DCX-22 CTD level probes with integrated data logger are available with a robust 316L stainless steel housing or other materials if necessary. At a rate of one measurement per hour, the integrated lithium battery has a life of up to eight years.

The DCX-22 level measuring probes are equipped with conductivity sensors. The robust titanium electrodes have redundant seals designed to achieve reliable water and pressure tightness, while the alternating supply field is adjusted to the conductivity of the fluid medium. For measuring conductivity, the four measuring ranges of 0–200 μS/ cm, 0–2 mS/cm, 0–20 mS/cm and 0–200 mS/cm, with a measuring accuracy of ±2.5%, can be used. Since water conductivity is highly temperature-dependent, a Pt1000 sensor measures the temperature of the medium to a degree of accuracy of 0.1°C, ensuring that the measured conductivity is accurately standardised to the reference temperature of +25°C.

Phone: 03 9540 5100
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