WL16 Water Level Logger

Price$1,346.00 (US Only)

Option

SKU400728-25

In Stock 0 - Available for Backorder

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Accurate and reliable datalogger and pressure transducer combination designed for remote monitoring and recording of water level and pressure data in groundwater pumping and sludge tests, stormwater flood analysis, and run-off, as well as surface water irrigation canals, streams, and river gauging.

For temperature, the WL-T Temperature Output Option AN0000 is needed for WL16 Water Level Logger.

Overview
The WL16 Water Level Logger is a datalogger and submersible pressure transducer combination designed to remotely monitor and record water level, pressure data, and/or temperature (item AN0000 required). 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.

Key Features:
- Four sample modes: 10 times per second, timed, logarithmic, and exception
- Highly accurate water level measurements
- User-programmable start and stop alarms, engineering units, and field calibration setup
- Wet-wet transducer eliminates vent tube concerns.
- Automatic barometric pressure and temperature compensation
- Well-built to support depths of 3ft to 500 ft
- Can measure level and temperature
The WL16, Water Level Logger, is housed in a weather-resistant cylindrical enclosure, 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 data upload on a laptop, desktop, or PDA for transfer to spreadsheet programs.

The vented submersible pressure transducer uses a unique silicon diaphragm to interface between your water and the sensing element. The diaphragm is highly flexible and touches the sensing element, producing a sensor with exceptional linearity and low hysteresis. A stainless steel micro-screen cap protects the pressure transducer diaphragm. The micro-screen cap has hundreds of openings, making fouling the sensor with silt, mud, or sludge virtually impossible.

Specifications

Certifications	CE
Connectivity / Communications	USB Type B
Data Management	Storage Capacity: 81,759 time and date stamped data points (including battery voltage) Data Overwrite: Select memory wrap or unwrap (unwrap will stop logging data once memory is full)
Memory	Non-volatile flash memory
Operating Temperature	-40° to +185°F (-40° to +85°C)
Power	Two 9VDC Alkaline Batteries
Resolution	12 bit
Sampling	High Speed (10 samples per second), Fixed Interval (Programmable from 1 sec to >1 year), Logarithmic, Exception
Size	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)

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)
Communication Port	WL16U: USB Type B Selectable Baud Rates: 9600,19200,28800,38400,57600,115200
Certificates	CE compliant

Global Water Level Loggers Software
Compatibility	Microsoft's Windows 98, ME, 2000, NT, XP, Vista, and 7
Features	Tabular Display/Printout; data in standard spreadsheet format (CSV) Programmable alarm start and stop times Field calibration software and help files included

Water Level Logger Vented Cable
Conductors	4 each 22 AWG
Material	Marine grade polyether jacket, polyethylene vent tube, full foil shield
Shield	Aluminum Mylar
Outside Diameter	0.306 inch (0.78 cm)
Temperature Range	-22° to +185°F (-30° to +85°C)
Length	Standard 25 ft (7.62 m) (up to 2000 ft (609.6 m) from factory) (for cable lengths over 500 ft (152.4 m) please call for availability)

Submersible Pressure Transducer
Sensor Element	Silicone Diaphragm, Wet/Wet Transducer
WaterLevel Measuring Range	0-3, 15, 30, 60, 120, 250, 500 ft
Linearity and Hysteresis	±0.1% FS
Warm-Up Time	3 seconds recommended
Overpressure	Not to exceed 2 x full scale range
Accuracy	±0.1% of full scale at constant temperature, ±0.2% over 35°F to 70°F (1.37° to 21.1°C) range
Compensation	Uses dynamic temperature compensation 30 to 70°F (-1.1 to 21.1°C). Automatic barometric pressure compensation
Housing	Up to 13/16" diameter x 5-1/2" long (2 cm dia. x 14 cm long)(small enough for a 1" well)
Material	304L Stainless Steel, SS microscreen (hundreds of holes to prevent fouling), electronics are fully encapsulated in marine grade epoxy, guaranteed not to leak

Accessories

WL-T Temperature Output Option for WL16 & WL400 Water Level Sensors

Temperature Output Option

WL-DO WL16 Desiccant Option

Desiccant Option
FAQs
What are the best applications for the WL16?

Ideal for static level water monitoring and water depths in rivers, streams, groundwater, coastal, and other surface water applications.

Depth monitoring for wells and/or sludge testing.

Water elevation monitoring between different sites.

For monitoring water level usage within industrial plants.

What makes the WL16 different from other YSI water level instruments?

The WL16 is one of the only pressure transducers to include its own data logger.

It utilizes analog outputs instead of digital outputs.

It can record temperature and level simultaneously

It comes equipped with a silicon diaphragm, unlike the WL450 which utilizes a stainless steel or Titanium diaphragm

How do I set up the WL16 and does it work with Windows 10?

Yes, the WL16 works with Windows 10 and is factory calibrated and ready for use upon arrival.

When you have received your WL16 install the software and utilize the general configuration tab to configure your sample time. Additional information can be found in the general tab of the user manual.

How often does the sensor read?

That is configured by your personal settings during general configuration.

How do I gather my data and measurements?

The WL16 is connected to your personal computer or laptop via USB and all information can be transferred thru excel for easy viewing.

How is the WL16 calibrated? And is it certified?

The WL16 is calibrated at the YSI facility and gets a quality certification upon shipment.

What are the typical power requirements and battery life?

The WL16 is powered by (2) replaceable 9V batteries with the unit requiring at least 12 volts of power, and can generally be in field service use 6 to 7 months before having to change batteries.

How often do I need to calibrate the equipment in the field?

We recommend once a year if possible.

How do I field calibrate my equipment?

Pictures and steps can be found in the WL16 Manual