GLOBAL WATER WL16 Water Level Logger

The WL16, Water Level Logger, is a datalogger and submersible pressure transducer combination designed for remote monitoring and recording of water level or pressure data.  The water level logger can record over 81,000 readings and has four unique recording options, fast (10 samples per second), programmable interval (1 second to multiple years), logarithmic, and exception.  Multiple depth ranges are available from 3 to 500 feet of water level change.  A 25 ft vented cable is standard on all water level loggers, and optional cable lengths are available from the factory up to 2000 ft.

The WL16, Water Level Logger, is housed in a weather-resistant cylindrical enclosure, which slips inside a standard 2-inch PVC pipe.  The Water Level Recorders are easily adapted with standard hardware for wellhead mounting, stream, or other installations.  Two internal 9 VDC Alkaline batteries will typically power each of the Water Level Loggers for approximately one year even if one of the batteries fails.  A third onboard lithium battery ensures your data is safe in the event both 9V batteries fail.  All Water Level Loggers include Windows and PDA software, allowing easy upload of data a laptop, desktop or PDA for transfer to spreadsheet programs.  NOTE: The Palm operating system is NOT supported.  For more information on supported PDAs click HERE.

The WL16, Water Level Logger's vented submersible pressure transducer is fully encapsulated with marinegrade epoxy.  The electronics are encapsulated so that moisture can never leak in through O-ring seals or work its way into the vent tube and cause drift or sensor failure, as is the case with many other vented sensors.  The vent tube is sealed directly to the wet-wet sensing element, and any moisture that may enter the vent tube from the housing will only contact the ceramic parts, not the electronics.  Most federal agencies, universities, and environmental consultants recommend vented water level sensors for the best monitoring results.

Features:
Four sample modes: 10 times per second, timed, logarithmic, and exception
CE Certified
User friendly software included
USB and Serial communication options available
Serial version is telemetry compatible
PDA software simplifies field data collection
No need to remove sensor for data collection or battery change
Highly accurate water level measurements
User programmable start and stop alarms, engineering units, and field calibration setup
Unique 0-3 ft range for shallow water
Wet-wet transducer eliminates vent tube concerns
Automatic barometric pressure and temperature compensation

Specification:
WL16 Water Level Data Loggers
Power:  Two 9VDC Alkaline Batteries
Battery Life:  Up to 1 year (depending on recording intervals)
Resolution:  12 bit
Moisture Protection:  Protective coating (helps prevent damage to electronics from condensation)
Temperature:  -40° to +185°F (-40° to +85°C)
Humidity:  0-95% non-condensing
Memory:  Non-volatile flash memory
Storage Capacity:  81,759 time and date stamped data points (including battery voltage)
Sample Modes:  High Speed (10 samples per second), Fixed Interval (Programmable from 1 sec to >1 year), Logarithmic, Exception
Data Overwrite:  Select memory wrap or unwrap (unwrap will stop logging data once memory is full)
Clock:  Synchronizes to the time and date of user's computer
Clock Accuracy:  0.0025% or 1 minute in 1 month
Clock Format:  Month/Day/Year Hour/Minute/Second
Enclosure:  1-7/8 inch dia. x 11-1/2 inch length (4.8 cm dia. x 29.2 cm length) (fits inside a 2 inch well), stainless steel UV protected PVC vented for barometric pressure compensation
Weight:  1.6 lbs (0.7 kg) (with battery and 25 ft cable)