Xylem WL16 WATER LEVEL LOGGERS - Manual (Page 32)

Global Water
800-876-1172 • globalw.com
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XVIII. Maintenance:
a. Except for battery and desiccant, there are no user-serviceable parts
inside the WL16 Data Logger.
b. Global Water recommends checking the batteries every 6 months.
c. Clean the sensor screen using clean water and a toothbrush to
remove any algae, mud or sludge.
XIX. Troubleshooting:
Issue: Logger is reading incorrectly.
a. Verify the battery supply has enough voltage. To operate properly, the
logger and sensor must have a minimum of 8 volts. If the battery
voltage monitor is reading less than 15 volts or seems incorrect, check
the batteries with a voltmeter or replace them. Battery voltages of less
than 15 volts indicate that the batteries need replacing.
b. Check the logger and sensor calibration numbers in the Setup Menu.
Recalibrate the logger if necessary. As a precaution, save the setup
file first as described in section XI. Clean the sensor screen.
Issue: Cannot communicate with the logger.
a. Verify that good batteries are installed.
b. Check the communication cable.
c. If the connection is to the WL16S using the serial cable provided by
Global Water, verify that the correct COM port is selected in the
connection menu of the Global Logger software.
d. If the connection is to the WL16U through the USB port, use the Device
Manager to confirm that the driver is loaded and the correct virtual
COM port is selected in the connection menu of the Global Logger
software. Check the Device Manager in your operating system and
confirm that the USB COM port is not being used by another device.
e. Try reducing the baud rate in the connection screen of the Global
Logger software.