Global Water 800-876-1172 • globalw.com WL16 Data Logger Covers WL16S and WL16U Data Loggers Global Water Instrumentation, Inc. 151 Graham Road P.O. Box 9010 College Station, TX 78742-9010 T: 800-876-1172 Int’l: (979) 690-5560, F: (979) 690-0440 globalw@globalw.
Global Water 800-876-1172 • globalw.com Congratulations on your purchase of a Global Water WL16 Data Logger. This instrument has been quality tested and approved for providing accurate and reliable measurements. We are confident that you will find the logger to be a valuable asset to your applications. Should you require assistance, our technical staff will be happy to help. Table of Contents I. Checklist ▫ ▫ ▫ ▫ II. Inspection ▫ ▫ ▫ III. Warranty ▫ ▫ ▫ ▫ IV. WL16 Specifications ▫ ▫ ▫ V.
Global Water 800-876-1172 • globalw.com I. Checklist: a. b. c. d. e. II. WL16S (Serial) or WL16U (USB) Data Logger WL16 Data Logger Manual WL16S comes with a RS-232 Serial Cable WL16U comes with a USB Cable, Type A to B Global Logger Interface Software on CDROM Inspection: a. Your Data Logger was carefully inspected and certified by our Quality Assurance Team before shipping. If any damage has occurred during shipping; please notify Global Water Instrumentation, Inc.
Global Water 800-876-1172 • globalw.com IV. WL16 Specifications: Logger: Power Supply: Two 9VDC Alkaline batteries standard 8 VDC Min. to 24.
Global Water 800-876-1172 • globalw.com Sensor: Sensor Element: Range: Linearity and Hysteresis: Accuracy: Overpressure: Resolution: Outputs: Supply Voltage: Current Draw: Warm Up Time: Operating Temperature: Compensated Range: Silicone Diaphragm, Wet/Wet Transducer Level: 0-3', 0-15', 0-30', 0-60', 0-120', 0-250' Optional Temperature: 32°-122°F (0°-50°C) ±0.1% FS Level: ±0.1% FS at constant temperature ±0.2% over 32° to 70°F range Optional Temp: Smaller of 0.
Global Water 800-876-1172 • globalw.com V. System Requirements: Desktop or Laptop computer with: 1) Windows 98, ME, 2000, XP Vista or Windows 7 Operating Systems 2) CDROM Drive 3) RS-232 COM Port (for WL16S) or USB Port (for WL16U) Note that the software provided with the WL16 data loggers is for running on desktop and laptop computers only. Software for many popular Handheld PDA devices is available from Global Water. Special cables may be required. VI.
Global Water 800-876-1172 • globalw.com WL16U Only The following menus apply to the Windows XP operating system. 1) Do not let Windows search for software. Click “No, not at this time” when asked if Windows Update can search for software. Click Next. 2) Do not let Windows automatically install the software. Click “Install from a specific location”. Click Next. 3) Specify the location of the driver. Make sure the Global Logger CDROM is in the CD drive and click “Search removable media” only. Click Next.
Global Water 800-876-1172 • globalw.com WL16U Only 4) The Hardware Wizard searches for the driver. If Windows advises that the software is not certified, click: “Continue Anyway”. This only means that Microsoft has not licensed the software. Second party software is allowed and no harm will come to your computer. 5) The first half of the installation is complete. The Hardware Wizard must make two passes. Click Finish.
Global Water 800-876-1172 • globalw.com 8) To confirm the installation, look in the Device Manager and find the USB Serial Port. The COM setting following that will show the virtual COM port that has been automatically assigned to the driver. As you will see in the following sections, this COM port will be automatically detected by the Global Logger software so it is not necessary to note which port is being used by the driver. VII.
Global Water 800-876-1172 • globalw.com To make a direct connection to the logger, click the “Direct” option and from the “Port” menu, select the port you wish to use. For USB access (WL16U) select the USB serial port at the COM port the driver was assigned, which is automatically shown in the list as “Global Logger USB Device”.
Global Water 800-876-1172 • globalw.com WL16S Only Two baud rates are supported 9600 and 19200. Should you experience difficulty establishing a reliable connection at 19200, try the slower connection speed. Note that due to the slower baud rates and the additional handshaking performed during modem communication, The Global Logger software will operate significantly slower than during a direct connection.
Global Water 800-876-1172 • globalw.com WL16S Only Sample initialization text file: This is for reference and applies to an external US Robotics modem only. ATM1 ; speaker off when connects AT&B1 ; fixed serial port rate AT&D2 ; normal DTR AT&H1&R2 ; h/w flow control AT&I0 ; disable s/w flow control AT&K0 ; disable compression AT&M4 ; normal error control Connect 19200 Select the COM port for your modem and the baud rate. Type in the phone number or select it from the list of prestored numbers.
Global Water 800-876-1172 • globalw.com IX. Main Screen: The main screen is where the status and option menus are accessed. The WL16 data logger will continue to log at normal intervals while connected to the Global Logger software. While connected, the logger will draw an addition current from the power supply of 5-10mA so it is advised that, if you plan to not access the logger for extended periods of time, you disconnect to increase battery life. Interface cables may remain connected.
Global Water 800-876-1172 • globalw.com Tool Bar: The tool bar at the top of the screen has 3 options; File, Action and Help. In this screen, the File option is used to exit the program only. Action allows a menu driven interface to the various functions and displays the hot-keys, which can be used for fast access.
Global Water 800-876-1172 • globalw.com Records: This field indicates the number of data recordings in memory. Logging State: This shows whether the WL16 is currently logging or waiting to be started or stopped by the alarm timers. These features are described in detail later. Sample Continuously: Clicking this check box causes the Global Logger software to take and display a real-time reading once per second until stopped by clicking it again, as well as update the rest of the fields on the screen.
Global Water 800-876-1172 • globalw.com Bar Graphs: The bar graphs show a visual representation of the most recent data reading taken by using the Sample Continuously or Get Sample functions. The upper and lower limits of the display are defined by the user as discussed in detail later. Numerical Reading: The numerical reading at the bottom of the bar graph shows the actual data reading and is updated at the same time as the bar graph.
Global Water 800-876-1172 • globalw.com X. On-Line Help Files: Clicking on Help displays the on-line help files which contain all of the information contained in this manual. There are 3 ways to access the information. The first tab is Contents which accesses the table of contents for the manual. Clicking on any of the topics opens up the body of text on that subject. Within each body of text is a discussion of that subject and links to related topics underlined in blue.
Global Water 800-876-1172 • globalw.com XI. Get History: Clicking the Get History button begins the downloading of the historical data into an information screen. This screen allows the viewing of the recorded data and also provides a path to export the data to an Excel compatible file (.CSV file). Note that the logger continues to log as data is downloaded. Thus, more data points may be downloaded than originally indicated.
Global Water 800-876-1172 • globalw.com Save to File: Clicking this button allows the data to be exported to an Excel compatible .CSV file. Specify the path and the file name and click the Save button Options: This opens a menu which Allows you to select if you want the Time and date in the time stamp to Be in one column or two in the saved .CSV file. Click Close to return. OK: Clicking the OK button returns you to the main screen. XII.
Global Water 800-876-1172 • globalw.com Action: The Action menu has two options, “Program Settings” and “Initialize to Default Values”. Program settings will reprogram the data logger with all the setup and calibration information and works the same as the Program Settings Button at the bottom of the screen. Initialize will restore all of the analog, digital and general setup information fields to default values.
Global Water 800-876-1172 • globalw.com Name: The logger is a user definable name to identify the logger. Up to 32 characters are allowed however, a continuous string of characters of more than 16 with no spaces may not be displayed correctly. Click on the field to enter information. Sensor Warm-up Time: To conserve battery life, the sensors do not normally have power applied to them.
Global Water 800-876-1172 • globalw.com Logarithmic Timing: Typically used in groundwater pump studies, this mode speeds up the sample rate over time. Click the “Logarithmic” option to select this mode. This a logarithmic approximation that steps up the sample rate: a. b. c. d. e. f. g.
Global Water 800-876-1172 • globalw.com Alarm Times: Check the box associated with each alarm to enable that feature and enter the desired start or stop time. The logger will start at the next occurrence of the Alarm 1 time and stop at the next occurrence of the Alarm 2 time after the Alarm 1 timer has expired. Either or both alarms can be enabled Note: Use care when programming the alarm times.
Global Water 800-876-1172 • globalw.com The calibration of channel one to a water level sensor is discussed in the following example where it is not possible to calibrate the sensor over its full range. The water level sensor shown is designed to measure over the range of 0-15 feet but a water column of 15 feet may not be available. The sensors can calibrated over any range such as 0 to 8 feet, even when it is desirable to measure beyond these limits.
Global Water 800-876-1172 • globalw.com Disp High: This field sets the upper limit of the bar graph displayed in the main screen and provides a way of scaling the graph beyond the upper limit used to calibrate the logger. In this example, the upper calibration point was a water level of 8 feet but the maximum range of the sensor is 16 feet.
Global Water 800-876-1172 • globalw.com Click on the Low EU field and enter the low engineering unit that will be used to calibrate the logger, not necessarily the lowest reading the sensor can output. In this example, the value is zero feet, which is the lowest calibration point and water level. Click Next. Place the sensor in the condition that will cause it to output the level corresponding to the low EU entered in the previous menu. Wait for the data reading to stabilize.
Global Water 800-876-1172 • globalw.com XV. Programming Program Settings: The Program Settings button at the bottom of the setup menus will cause all the setup and calibration information to be programmed into the data logger. A warning will appear requiring the use to confirm the action. Click Yes to program the logger and No to cancel the operation. Back to Main Window: The Back to Main Menu button exits back to the main screen. If no settings have changed, Exit will occur immediately.
Global Water 800-876-1172 • globalw.com XVI. Modem Cable Diagram (WL16S Only): The following wiring diagram is used to make a cable to connect the WL16S Data Logger to an external modem. A pre-wired cable is available from Global Water.
Global Water 800-876-1172 • globalw.com XVII. Adjusting the Zero Reference Level: The sensor on the WL16 level logger measures the depth of water from the end of the sensor to the surface. However, it is sometimes desirable to know the water depth from a reference level other than the surface. For example: In a ground water well, you may want to know the distance from the surface of the water to ground level, not to the sensor. The WL16 comes factory calibrated to measure depth from sensor to surface.
Global Water 800-876-1172 • globalw.com • Install the WL16 as it will be in the final installation. • Place a mark on the cable or logger housing at the point where it meets the top of the well pipe (or other desired reference level). • Remove the WL16 and measure the distance from the tip of the sensor to the mark made in the previous step. • Enter this length in the Low EU field in the Setup menu.
Global Water 800-876-1172 • globalw.com Assume that you wish to set the zero reference point to the lowest water level in the data record. This will show this low level as zero and all others as a positive level above it. • Download the historical data and find the lowest water level in the record. • Enter the setup menu and note the difference between the Low and High EU numbers; this is always the depth at which, the sensor was calibrated.
Global Water 800-876-1172 • globalw.com 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.
Global Water 800-876-1172 • globalw.com XX. Customer Support: Call Global Water for tech support: 800-876-1172 or 979-690-5560 (many problems can be solved over the phone). Fax: 979-690-0440 or Email: globalw@globalw.com. When calling for tech support, have the following information ready: 1. 2. 3. 4. 5. Model #. Unit serial number. P.O.# the equipment was purchased on. Our sales number or the invoice number. Repair instructions and/or specific problems relating to the product.
