Modell ONS-U24-001

  • Non-contact sensor reduces sensor drift for easy maintenance
  • Provides easy access to sensor for cleaning and shedding air bubbles
  • HOBOware Pro software enables start/end-point calibration to compensate for any fouling and provides easy conversion to specific conductance and salinity
  • USB optical interface provides high-speed, reliable data offload in wet environments
  • Compatible with the HOBO Waterproof Shuttle for easy and reliable data retrieval and transport
Angebot anfordern

The HOBO U24 conductivity logger measures actual conductivity and temperature, and can provide specific conductance at 25°C with the HOBOware® Conductivity Assistant. These easily deployable, rugged loggers provide the data you need for monitoring water purity and the impact of pollutants in fresh water. There is an optional U2X Protective Housing accessory (HOUSING-U2X) available to protect the logger and simplify mounting in harsh environments.


Spezifikationen
Sensors
MeasurementsActual Conductivity, Temperature, Specific Conductance at 25°C (calculated)
Conductivity Calibrated Measurement RangesLow Range: 0 to 1,000 µS/cm
Full Range: 0 to 10,000 µS/cm
Conductivity Calibrated Range - Temperature Range5° to 35°C
Conductivity Extended RangesLow Range: 0 to 2,500 µS/cm
Full Range: 0 to 15,000 µS/cm
Temperature Measurement Range-2° to 36°C
Specific Conductance Accuracy (in Calibrated Range)Low Range: 3% of reading, or 5 µS/cm,
Full Range: 3% of reading, or 20 µS/cm,
whichever is greater, using Conductivity Data Assistant and calibration measurements
Conductivity Resolution1 µS/cm
Temperature Accuracy (in Calibrated Range)0.1°C
Temperature Resolution0.01°C
Conductivity DriftLess than 3% sensor drift per year, exclusive of drift from fouling
Response Time1 second to 90% of change (in water)
Logger
Operating Range-2° to 36°C - non-freezing
Memory18,500 temperature and conductivity measurements when using one conductivity range,
14,400 sets of measurements when using both conductivity ranges
(64 KB total memory)
Sample Rate1 second to 18 hrs, fixed or multiple-rate sampling with up to 8 user-defined sampling intervals
Clock Accuracy±1 minute per month
Battery3.6 Volt lithium battery
Battery Life3 years (at 1 minute logging)
Maximum Depth70 m
Weight193 g, buoyancy in freshwater: -59.8 g
Size3.18 cm diameter x 16.5 cm, with 6.3 mm mounting hole
Wetted Housing MaterialsDelrin®, epoxy, stainless steel retaining ring, polypropylene, Buna rubber O-ring, titanium pentoxide (inert coating over sensor)


Broschüre
Betriebsanleitung
PDF Download - 235 KB

Datenlogger > Datensammler und Software
ModellBeschreibungEinsetzbar mit
ONS-BASE-U-4
  • Basismessstation mit Infrarotschnittstelle
  • Serie UA
  • Serien U20 … U24
  • UTBI
ONS-U-DTW-1
  • Wasserdichter Datensammler
  • Basismessstation
  • Serie UA
  • Serien U20 … U24
  • UTBI
ONS-BHW-PRO-CD
  • Software HoboWare Pro 3.0 für Windows/MAC
  • inkl. USB-Verbindungskabel
  • Allen Onset-Datenloggern

Datenlogger > Unterwassereinsatz
ModellMaximale WassertiefeMess-/Überwachungs­größeMess-/Über­wachungs­bereichMesswerte/Status­wechsel
ONS-U24-002-C
  • 70 m
  • Elektrische Leitfähigkeit
  • Temperatur
  • 0 … 55.000 µS/cm
  • -2 … 36 °C
  • 18.500 Wertepaare
ONS-U26-001
  • 100 m
  • Sauerstoffgehalt
  • Temperatur
  • 0 … 30 mg/l
  • -5 … 40 °C
  • 21.700 Wertepaare
ONS-U20-001-02
  • 40,8 m
  • Wassertiefe
  • Druck
  • Temperatur
  • 0 … 30 m
  • 0 … 400 kPa
  • -20 … 50 °C
  • 21.700 Wertepaare
ONS-U22-001
  • 120 m
  • Temperatur
  • -40 … 50 °C
    (unter Wasser)
  • 42.000
ONS-UTBI-001
  • 305 m
  • Temperatur
  • -20 … 30 °C
    (dauerhaft unter Wasser)
  • 42.000
ONS-UA-001-64
  • 30 m
  • Temperatur
  • -20 … 50 °C
    (unter Wasser)
  • 52.000

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