• Intelligent energy management for longer battery lifetime
  • Up to 600,000 data records
  • USB connection for fast data transfer to PC
  • Four electrode conductivity sensor for more measurement reliability
  • User-friendly software interface
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Product Description
Monitoring of water resources has become a global challenge with high priority.  Therefore innovative measuring technology is essential to meet the challenge.  The WQL-Cond, conductivity dataloggers are part of the new WTW datalogger product family.  The conductivity dataloggers meet the requirements of continuous long-term conductivity measurement and data logging.  Applications for the WQL-Cond, conductivity Dataloggers are characterized by the need for a large quantity of reliable data measurements at multiple measuring positions which are difficult to access.  With a diameter of only 1 inch (25 mm) the conductivity dataloggers are ideal for both ground and surface water monitoring projects.  The conductivity dataloggers consist of three parts including the end cap which covers the USB data transfer port, the main body which houses the battery, and the fail safe 4-electrode-cell conductivity probe.
Conductivity Datalogger's USB port, indicator light, and quick start button. Conductivity Datalogger's battery compartment.
The conductivity datalogger's huge memory can record up to 600,000 data sets containing the conductivity measurement, temperature, date, and datalogger ID number.  This massive amount of data storage is ideal for detailed conductivity monitoring studies.  The data is recovered from the conductivity dataloggers using a mini USB connection for fast data transfer directly to a PC.  The conductivity dataloggers have a status LED which provides information on memory and measurement operation.  A quick start button located under the conductivity datalogger's end cap allows you to have further control over the conductivity measurements. Conductivity Datalogger Software
A user-friendly software interface allows you easy and fast access to all important functions and settings on the conductivity datalogger.  The software allows you to easily follow the conductivity datalogger's detailed automatic or manual calibration protocol and configure several key parameters including time interval, starting and stopping point, and the datalogger's ID.  The conductivity datalogger software includes a graphing function to simplify data analysis.  The conductivity datalogger's software can pre-filter the data by date and time then easily export the data via .CSV format to other software programs for more detailed analysis. Power for the Conductivity Dataloggers
The conductivity datalogger uses a high quality lithium battery as its power source.  The conductivity datalogger uses special intelligent battery power management to maximize the battery life.  While the conductivity datalogger's battery life is dependent upon the frequency of measurement, the battery can last up to 16 months with a sample rate of 10 minutes or more.  Changing the battery is as easy as opening the conveniently located battery compartment on the conductivity datalogger's main body.
WQL-Cond Conductivity Datalogger
Conductivity Range: 0.0 to 199.9 uS/cm, 200 to 1999 uS/cm, 2.00 to 19.99 mS/cm, 20.0 to 199.9 mS/cm, 200 to 1000 mS/cm
Salinity Range: 0.0 to 70.0 according to the IOT table
TDS: 0 to 199.9 mg/l, 200 to 1999 mg/l, 2.00 to 19.99 g/l, 20.0 to 199.9 g/l
Temperature Range: 23 to 140°F (-5.0 to +60.0°C)
Conductivity Accuracy: +0.5% of measured value
Temperature Accuracy: +0.1°F (0.1°C)
Temperature sensor: Integrated, NTC 30 (30 kΩ at 25 °C / 77 °F)
Calibration: Automatic or manual buffer detection
Reference Temperature: Selectable 20°C or 25°C
Measuring Principle: Four-electrodes measurement
Cell Constant: 0.475/cm-1 +1.5%
Temperature Compensation: Automatic or none
Temperature Coefficient: non-linear (nLF) according to EN 27888 (default), linear, none
Measuring Medium:
     Temp Range: 32 to 140 °F (0 to 60 °C)
     pH Range: 2 to 12
Data Volume: up to 600,000 data records
Sampling Interval: adjustable: 1,5,10,30 s/ 1,5,10,15,30 min/ 1,2,3,6,9,12,24 hr
Power Supply: Lithium ion battery (3.6V, AA size, 2600 mAh)
Battery Life: Up to 16 months depending on the sample rate
USB Interface: Type USB 1.1, USB-B (Device), data output
Protection Rating: IP 68
Maximum Pressure/Depth: 145 PSI (10 bar)/328 ft (100 m)
Storage Temperature: -13 to 149°F (-25 to +65°C)
Material: Metal parts (Stainless steel 1.4571*), Battery Compartment (Brass, gold-plated)
Size of Probe: 0.98 inch Diameter x 16.61 inch L (25 mm dia. x 422 mm long), retaining hole 0.26 inch (6.5mm)
Weight: 2.1 lb. (950 g) including electrode
Certificates: CE * Stainless steel can be susceptible to corrosion at chloride concentrations of >500 mg/l.

WQL-CondB.pdf (362 views)


WQL-Cond.pdf (363 views)

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