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LI-COR LI-1500 Instruction Manual

Light sensor logger
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LI- 1500
Light Sensor Logger
Instruction Manual

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Summary of Contents for LI-COR LI-1500

  • Page 1 LI- 1500 Light Sensor Logger Instruction Manual...
  • Page 2 LI-1500 Light Sensor Logger Instruction Manual Publication No. 984-14406 LI-COR®, Inc. 4647 Superior Street P.O. Box 4425 Lincoln, Nebraska 68504 USA Telephone: (402) 467-3576 FAX: 402-467-2819 Toll Free: 1-800-447-3576 (U.S. & Canada) envsales@licor.com envsupport@licor.com www.licor.com...
  • Page 3 Lincoln, Nebraska USA 68504 declares that the product Product Name: Light Sensor Data Logger Model Number(s): LI-1500 Product Options: LI-1500 Light Sensor Data Logger LI-1500-GPS Light Sensor Data Logger w/GPS conforms to the following Product Specifications: EMC: FCC 47 CFR Part 15.109 Radiated Emissions, Class A...
  • Page 4 NOTICE The information contained in this document is subject to change without notice. LI-COR® MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THE THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. LI-COR® shall not be liable for errors contained herein or for incidental or consequential damages in con- nection with the furnishing, performance, or use of this material.

  • Page 5: Printing History

    Printing History Publication Number: 984-14406 New editions of this manual will include all updates. An update addendum may be used between editions to provide up-to-date information. Revisions are indicated by the revision number. Minor updates, which do not alter the meaning of the content, will be incorporated without affecting the revision number.

  • Page 6: Table Of Contents

    Table of Contents Section 1. Introduction to the LI-1500 What's What Power Sources Install batteries Low Battery Indicator AC Power Cable Connections Data Cable Connection Light Sensor Input Ports Memory Precautions Maintenance Cleaning Storage Section 2. Software Basics Powering On and Off...
  • Page 7 Creating a Configuration Changing the Logging Routine Changing the Sampling Rate Standard Modes Raw Mode Sampling Rate and Measurement Range Selecting a Measurement Range Adding an Output Configuring a Math Output Enabling Averaging Averaging Window Sampling Rate and Averaging 3-10 Measuring Underwater Attenuation 3-10 Underwater Attenuation Theory...
  • Page 8 Appendix D. Warranty Appendix E. Index...
  • Page 9 viii...

  • Page 10: Section 1. Introduction To The Li-1500

    The rubber seal also serves as a shock cushion to protect the instrument from impact. What's What If you just received your LI-1500 Light Sensor Logger, check the packaging list to verify that you received everything that was ordered. Each LI-1500 should include the following items:...

  • Page 11: Power Sources

    442-00854 Power Sources The LI-1500 Light Sensor logger uses four "AA" size batteries. AC power (mains) may also be used, but "AA" batteries should be installed to prevent data loss in case AC power is interrupted during logging. An internal lithium cell battery maintains clock settings when "AA"...

  • Page 12: Install Batteries

    3.8V. Battery voltage can be viewed in Monitor Mode (see page 2-3). AC Power The LI-1500 can be powered with AC (mains) power. Plug the AC to DC power supply adapter (at right) into a wall outlet supplying AC power. Plug the USB cable into the adapter.

  • Page 13: Light Sensor Input Ports

    The LI-1500 is weather resistant, but the following environmental limitations should be observed: If the LI-1500 is to be left outdoors and unattended for long periods of time, it should be installed in a protective enclosure or sheltered location. Install the pro- tective plug in the USB port when the port is not in use.

  • Page 14: Section 2. Software Basics

    Section 2. Software Basics This section describes how to use the LI-1500 Light Sensor Logger keyboard, navigate the user interface, and change console settings. Powering On and Off Press the power on/off key to turn on the LI-1500. You you will see one of these messages: New Config File: Start at step 2 under "Creating a Configuration"...

  • Page 15: Keypad

    Section 2. Software Basics Keypad The LI-1500 features a 22-button tactile response keypad. The upper block of nine keys are used to nav- igate through menus, select menu options, and log data. Basic func- tions of the upper nine keys are described in Figure 2-1.

  • Page 16: Adjusting Display Brightness

    Section 2. Software Basics Adjusting Display Brightness LI-1500 Light Sensor Logger The LI-1500 display is a 128 x 64 LCD Brighter graphics display. It displays alpha- numeric characters. To adjust the dis- play contrast, hold the minus(-) key Dimmer and press the up or down arrow keys.

  • Page 17: Menu Navigation

    Section 2. Software Basics To change variables on the display, press the up or down arrow key select a line. The active line will be highlighted for about one second. Press the right or left arrow keys to scroll through available variables. Menu Navigation Navigation through menus is accomplished with the upper block of nine keys.

  • Page 18: Auto Off Timer

    Section 2. Software Basics Auto Off Timer The Auto Off timer turns the LI-1500 off after a pre-set period of time in which no keys are pressed. Select MENU > Console Setup > Auto Off Timer. Set the timer as desired using the up and down arrow keys Disable the "Auto Off Timer"...

  • Page 19: Gps Tagging

    Plot 2 -- all during the same logging session. GPS Fix Quality The LI-1500 reports two variables (visible on the "gNSATS:" line in Monitor Mode) indicating the quality of a satellite fix. The first variable is the number of satellites visible to the instrument.

  • Page 20: Section 3. Configuration

    Section 3. Configuration This section describes how to con- figure the LI-1500 to display and log data from LI-COR light sensors. The first two steps in the summary below are required in order to get light read- ings and log data. The remaining steps provide additional functionality.

  • Page 21: Adding A Sensor

    The LI-1500 Light Sensor Logger is compatible with LI-COR Light Sensors hav- ing BNC terminations. Calibration data must be entered for each light sensor. Data for up to 100 sensors can be stored in the memory of the LI-1500. Select MENU > Sensors > Add New Sensor and select the model number of your LI-COR light sensor.

  • Page 22: Changing The Logging Routine

    Select MENU > Configurations > Add New Config. Enter a name for the configuration. Press OK when finished. Select Inputs, and then select IN1, IN2, or IN3. Attach a LI-COR Light Sensor to the chosen input port. For terrestrial sensors, highlight your sensor's serial number, then OK >...

  • Page 23: Changing The Sampling Rate

    Section 3. Configuration Note: The sampling rate must be set at or faster than the desired logging rate. For example, the 1 sec logging rate would not be available if the sampling rate is set at 0.1 Hz (one sample every 10 seconds). With the sampling rate set at 0.1 Hz, the shortest time interval you could choose as a logging rate would be every 10 seconds (by choosing Each Sample).

  • Page 24: Standard Modes

    Section 3. Configuration Standard Modes Sampling rates: 0.01 Hz, 0.1 Hz, 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 Hz. In the standard sampling modes, up to three input ports can be sampled at once, and averaging is supported. Select MENU >...

  • Page 25: Sampling Rate And Measurement Range

    Sampling Rate and Measurement Range With Standard Modes sampling and a total sampling rate across all three input ports set to 3 Hz or less, the LI-1500 chooses a measurement range auto- matically based on light levels detected (autoranging). For example, when using one input port the sampling rate needs to be ≤...

  • Page 26: Adding An Output

    An output takes data from light sensors, battery voltage, GPS, prompt entries, or another output and creates a separate data set that can be viewed in monitor mode or logged. The LI-1500 will support up to six Light outputs, 15 Math out- puts, and three Prompt outputs in each configuration.

  • Page 27: Configuring A Math Output

    Section 3. Configuration • Prompt: Enter name for the output. Select Type. Highlight the Full Alphanumeric or Numeric Only entry type, then press OK > EXIT. During manual logging, a Prompt output asks for a different data entry into each record when LOG is pressed. For continuous or automatic logging, a prompt output asks for an entry when the logging file is first opened.

  • Page 28: Enabling Averaging

    Section 3. Configuration Separation and enter the separation distance – the distance between the two underwater light sensors (see "Measuring Underwater Atten- uation" on the next page). • Logarithm -- Natural Logarithm, Ln() -- Set a parameter Select Param to set parameters. A parameter is a numeric constant or a pre-existing output to which the operation is applied.

  • Page 29: Sampling Rate And Averaging

    30 seconds have elapsed. Measuring Underwater Attenuation With two LI-192 Underwater Quantum Sensors connected to the LI-1500 -- each placed at different depths -- you can measure the vertical attenuation of light underwater.

  • Page 30: Underwater Attenuation Theory

    For separation distance, use the vertical distance between the two sensors in meters. The Math output reports the vertical attenuation coefficient in m Note: The LI-COR 2009S Lowering Frame can hold only one LI-192 sensor for measuring downwelling radiation. Underwater Attenuation Theory...
  • Page 31 3-12...

  • Page 32: Section 4. Logging And Viewing Data

    Important: Leave the power on and the logging file open until the logging routine is finished. The LI-1500 will not turn itself on for Daily or One Time routines. Also disable the Auto off Timer to prevent the early termination of Continual, Daily, or One Time logging routines (see "Auto Off Timer"...

  • Page 33: Prompts And Remarks

    With Air, the "in-air" calibration multiplier is used. With Water, the "in water" calibration multiplier is used. These multipliers are entered when you add a sensor to the memory of the LI-1500 (see "Adding a Sensor" on page 3-2). Prompt on Log Prompt on Log allows you to switch between "in air"...

  • Page 34: Gps Tagging

    Plot 2 -- all during the same logging session. Viewing Logged Data Logged data are stored in files that can be opened on the LI-1500 console or on a computer. Data from multiple logging sessions may be stored in a single file.

  • Page 35: On A Computer

    On a Computer Connect the LI-1500 to your computer with the USB cable. It will appear as a mass storage drive named LI-1500. Open the DATA folder in the LI-1500 drive, locate the desired logging file, and drag or copy it to a directory on your computer.
  • Page 36 LI-COR's FV7x00 software for Windows. This software was designed for high speed gas analyzers, but also works well for graphing large data sets taken at high sampling rates with the LI-1500. Viewing Raw Mode Data with the File Viewer: Download the FV7x00 software at: http://www.licor.com/env/support/...

  • Page 37: Viewing Real-Time Data

    Section 4. Logging and Viewing Data Viewing Real-Time Data In Monitor Mode (see page 2-3), the LI-1500 can be used as a handheld meter for viewing real-time light level data. If the Global Positioning System (GPS) is enabled and a satellite con-...

  • Page 38: Section 5. Troubleshooting

    Instrument will not turn off: The LI-1500 will not power off if a data file is open or if it is reading data from the internal memory. Wait a few moments for the data transfer to finish and close any open data files, then try again.
  • Page 39 Enter your sensor's serial number in the Calibration search box. Certificates include the multiplier and the sensor's last calibration date. LI-COR recom- mends factory calibration for LI-COR light sensors every two years. Data are not logged correctly: •...
  • Page 40 Section 5. Troubleshooting Data will not read to memory or transfer to a computer: In rare cases, such as after a fall, the SD memory card can slip out of place. Open the instrument case and push the card back into place. See "Replacing the Internal Lithium Battery"...

  • Page 42: Appendix A. Updating The Firmware

    The latest firmware is available for download at: http://www.licor.com/env/support/. Click on LI-1500 > Software, then click on the embedded software link and save the firmware file to a directory on your computer. Next follow these steps: Connect the LI-1500 to your computer with the USB cable. It will appear as a mass storage drive named LI-1500.

  • Page 44: Appendix B. Specifications

    Appendix B. Specifications Current Inputs: 3 BNC connectors (used to connect LI-COR sensors) Output Channels: Light Math Channels: 8 math channels (addition, subtraction, multiplication, divi- sion, natural logarithm, integration, daily integration, attenuation) GPS (optional) Prompt Battery Voltage Input Channel Specifications: Frequency Rejection: >70dB at 50 or 60 Hz (1 input channel @ sampling rates...

  • Page 45: Power Supply Options

    Appendix B. Specifications Logging Rates: Standard Modes Sampling: Every Sample, 100 msec, 200 msec, 500 msec, 1 sec, 5 sec, 10 sec, 15 sec, 30 sec, 60 sec, 100 sec, 5 min, 15 min, 30 min, 1 hr, 2 hr, 3 hr, 6 hr, 12 hr, 24 hr Raw Mode Sampling: Every sample (1–500 Hz) Averaging: Standard Modes Sampling: averaging windows depend on sampling rate (see...
  • Page 46 Appendix B. Specifications Battery Life: 80 hours life (typical usage of 1 Hz sampling rate and logging rate) 40 hours life (typical usage with GPS option on) Environmental Conditions: Operating Temperature Range: -20 to 50°C Humidity Range: 0 to 95% RH (non-condensing conditions) Storage Temperature Range: -40 to 65°C Size: 20.9 x 9.8 x 3.5 cm (8.2"...

  • Page 48: Appendix C. Replacing The Internal Lithium Battery

    Appendix C. Replacing the Internal Lithium Battery The following steps describe how to replace the internal lithium battery. The bat- tery should last up to seven years. Always use a BR1225 watch battery (p/n 442- 08614). Using a #1 cross-head (Phillips) screwdriver, loosen the four screws that secure the top and bottom of the control unit.
  • Page 49 Appendix C. Replacing the Internal Lithium Battery Figure C-1. Replacing the Internal lithium backup battery. Slide the new battery into the holder with the positive (+) terminal facing Join the top and bottom halves of the control unit. Be sure the rubber seal is seated properly.

  • Page 50: Warranty

    No-charge repair parts may be sent at LI-COR, Inc.'s sole discretion to the purchaser for installation by purchaser. LI-COR, Inc.'s liability is limited to repair or replace any part of the instru- ment without charge if LI-COR, Inc.'s examination disclosed that part to have been defective in material or workmanship.
  • Page 51 The foregoing constitutes LI-COR, Inc.'s sole obligation and liability with respect to damages resulting from the use or performance of the instrument and in no event shall LI-COR, Inc. or its representatives be liable for damages beyond the price paid for the instrument, or for direct, incidental or consequential damages.
  • Page 52 Appendix E. Index AC Power 1-3 Daily Integral 3-8 Add a Sensor 3-2 Data Addition 3-8 viewing logged data 4-3 Adjust Display Brightness 2-3 viewing real-time data 4-6 Attenuation 3-8, 3-10 Data Cable Connection 1-3 theory 3-11 Data Storage Capacity B-2 Auto-Off Timer 2-5 Date and Time 2-4 Averaging 3-9...
  • Page 53 Appendix E. Index Prompt on Log 4-2 Prompt Output 3-8 Light Output 3-7 Prompts 4-2 Light Sensors Prompts and Remarks 4-2 adding 3-2 calibration date 3-2 calibration multipliers 3-2 Raw Mode Data input ports 1-4 viewing 4-5 serial numbers 3-2 Raw Mode Sampling 3-5 Lithium Battery C-1 Real-Time Data 2-3...
  • Page 55 Germany Phone: +49 (0) 6172 17 17 771 Fax: +49 (0) 6172 17 17 799 envsales-gmbh@licor.com • envsupport-gmbh@licor.com LI-COR Ltd., United Kingdom Serving Denmark, Finland, Ireland, Norway, Sweden, and UK. LI-COR Biosciences UK Ltd. St. John’s Innovation Centre Cowley Road...

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