ASD TerraSpec User Manual
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ASD TerraSpec User Manual

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TerraSpec® User Manual
ASD Document 600541 Rev. G
© 2008 by ASD Inc.
www.asdi.com

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Summary of Contents for ASD TerraSpec

  • Page 1 TerraSpec® User Manual ASD Document 600541 Rev. G © 2008 by ASD Inc. www.asdi.com...

  • Page 2: Trademark Information

    Technical Support If you have any questions or concerns, please contact ASD Inc. by phone, fax, or email: Phone: 303-444-6522 X-144...

  • Page 3: Table Of Contents

    Maintenance......... . . 20 Returning Instrument to ASD for Service .
  • Page 4 ........49 What are the differences between the ASD spectrometers? .
  • Page 5 Why does the software seem to do unexpected things? ... . 57 How long does it take for the TerraSpec spectrometer to warm up? . . . 57 Where is my serial number? .
  • Page 6 ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 7: Declaration Of Conformity

    EN 61010-1: 2001 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory use EN 61326-1: 2002 Class A, Electrical Equipment for Measurement, control and Laboratory use – EMC requirements Signature: Title: Date: ASD Document 600541 Rev. G TerraSpec® User Manual...
  • Page 8 However, the absence of warnings and cautions do not preclude the user of proper caution and handling. Usual precautions are recommended to be taken at all times, either written or otherwise, to avoid personal injury or damage to ASD equipment. ASD Document 600541 Rev. G viii TerraSpec® User Manual...
  • Page 9 7. Do not operate where aerosol (spray) products are being used or where oxygen is being administered. 8. The power supply should be used near to a convenient and easily accessible mains socket. ASD Document 600541 Rev. G TerraSpec® User Manual...
  • Page 10 Notes: ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 11: Chapter 1 Introduction

    Contact Probe are specifically designed to work with this high resolution instrument. The TerraSpec spectrometer is compact and field portable. It has a spectral range of 350-2500 nm and rapid data collection (10 spectra per second). While its most highly regarded features are performance and field-portability, these instruments perform competitively in the laboratory as well.

  • Page 12: Hardware Specifications

    Chapter 1 Introduction Hardware Specifications This section contains details about the TerraSpec spectrometer. 1.1.1 Physical Specifications Height 12.7 cm 5 inches Width 35.6 cm 14.5 inches Depth 29.2 cm 11.5 inches Weight 5.6 kg 12 lbs • Durable satin powder coat finish with orange urethane end-caps and handles •...

  • Page 13: Terraspec Wavelength Configuration

    • 2 nm for the spectral region 1000-2500 nm. The TerraSpec spectrometer may be configured to have three separate holographic diffraction gratings with three separate detectors. Each detector is also covered with the appropriate order separation filters to eliminate second and higher order light.

  • Page 14: Interface Requirement

    Chapter 1 Introduction 1.1.4 Interface Requirement The TerraSpec spectrometer has 10/100 Base T Ethernet port. The spectrometer with an Ethernet cross-over cable can be directly connected to the Ethernet port provided on many laptop computers. The TerraSpec spectrometer can communicate with the instrument controller using an optional 802.11b wireless card.

  • Page 15: Computer Requirements

    Chapter 1 Introduction Computer Requirements The instrument controller is a computer that manages the TerraSpec spectrometer, stores data, and processes the results. The standard TerraSpec spectrometer includes a laptop computer, or the instrument controller. The minimum requirements for the instrument controller are: •...

  • Page 16: Theory Of Operation

    Chapter 1 Introduction Theory of Operation The TerraSpec spectrometer measures the optical energy that is reflected by, absorbed into, or transmitted through a sample. Optical energy refers to a wavelength range that is greater than just the visible wavelengths, and is sometimes called electromagnetic radiation or optical radiation.
  • Page 17 • A single sample of SWIR2 is ~2400 bytes. A full-range TerraSpec spectrometer can create packet data sizes over 5 KB. Other single or dual range configurations of the spectrometer create smaller data packets (adding the packet sizes as above.)
  • Page 18 Transmittance is the ratio of the radiant energy transmitted through a sample to the radiant energy incident on the surface of the sample. Spectral Transmittance is the transmittance as a function of wavelength. ASD Document 600541 Rev. G TerraSpec® User Manual...
  • Page 19 3,000°K. The probe is powered by the accessory power port of the TerraSpec spectrometer. Characteristics of the light source are eliminated when the white reference (or baseline spectrum) is applied to each raw sample spectrum.
  • Page 20 Chapter 1 Introduction Notes: ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 21: Chapter 2 Setup

    Save all packing materials, foam spacers, and paperwork for possible future use. Figure 2-1 TerraSpec spectrometer in carrying case. Prepare a clear space on a sturdy bench or counter, ideally, a space near a wall-current receptacle and the controlling computer.

  • Page 22: Unpacking The Instrument

    During operation, the unit will work correctly regardless of the physical orientation, such as sideways in a specially designed Ergonomic Pro-Pack. Figure 2-2 TerraSpec spectrometer front-view showing fiber connection and power output. Step 2 The computer is located directly below the instrument between the foam inserts.

  • Page 23: Power Supply

    Chapter 2 Setup Power Supply The TerraSpec spectrometer requires input power to be 12 VDC (60 W). It does not contain an internal power supply to convert AC voltage to DC, nor does it have internal batteries. The options for providing the spectrometer with the appropriate DC voltage are: •...
  • Page 24 (Figure 2-6). Figure 2-5 TerraSpec spectrometer power connector which plugs into the instrument. Insert power (battery or power supply) into the receptacle on the back panel labeled “INPUT 12 VDC 50 WATT”. Lock the connector in place by twisting the barrel end of the connector clockwise.

  • Page 25: Ethernet Cables

    Figure 2-6 shows the back panel containing the Ethernet port, which is labeled “RJ45/ETHERNET”. With the TerraSpec spectrometer and the instrument controller fully powered-down and turned-off, plug the shielded cross-over Ethernet computer cable (as shown in Figure 2-7) into the Ethernet ports of the TerraSpec spectrometer and your instrument controller.

  • Page 26: Accessory Power Port

    The accessory power port is provided for optional ASD approved accessories. Attach the large connector end of the cable into the accessory power port of the front panel. Attach the other end of the power cable into the Contact Probe, Hi-Brite MugLite, or other ASD approved accessory.

  • Page 27: Remote Trigger

    ASD accessory. Remote Trigger An external trigger is standard with the TerraSpec spectrometer. The LEDs on the trigger are bright enough to be seen even on a sunny day. The LEDs are light up when the trigger is pushed (briefly) and turn off when the capture is complete.
  • Page 28 Chapter 2 Setup Figure 2-11 External trigger cable plugged into the TerraSpec spectrometer. The trigger comes with several pieces of mated velcro, that are intended for use with several accessories. Place a piece of hook velcro onto the trigger;...

  • Page 29: Chapter 3 Usage And Maintenance

    All operators should be familiar with this information. Light Sources Use only light sources supplied by ASD Inc. Light sources supplied by ASD are designed to provide levels of illumination and stability of output that complement the performance of ASD instrumentation.

  • Page 30: Cleaning

    Returning Instrument to ASD for Service In order to return the instrument to ASD for maintenance or repair, a Return Merchandise Authorization (RMA) must be issued by ASD technical support. The RMA includes scheduling details, contact information, shipping instructions, as well as a brief description of the maintenance or repair requirements.

  • Page 31: Chapter 4 Fiber Optic Interface

    Chapter 4 Fiber Optic Interface ASD offers a variety of fiber optic cable lengths to interface with the TerraSpec spectrometer. These fiber optic cables are used for reflectance and transmittance measurements. Fiber optic cables should be loosely coiled and stored in the compartments provided.

  • Page 32: Fiber Optic Cable Interface

    The covers will slide on and off the cable easily. Fiber Optic Cable Interface All fiber optic cables come with a standard SMA style 905 connector, as shown in Figure 4-1 ASD Document 600541 Rev. G TerraSpec® User Manual...
  • Page 33 Chapter 4 Fiber Optic Interface Figure 4-1 Connector for the fiberoptic cable. In order to achieve the best response from ASD instruments it may be necessary to adjust the fiber optic interface between the external fiber optic cable (shown in...

  • Page 34: Matching Fiber Bundles

    Figure 4-4. The millimeter size (mm) is the internal diameter of the fiber optic bundle. The TerraSpec spectrometer comes with the 1.7 mm external fiber optic cable diameter. Figure 4-4 Examples of the external fiberoptic cable diameters. Matching Fiber Bundles...
  • Page 35 Periodically remove the matcher to clean the internal fiber optic tip. Note: The optimal setting for this fiber optic bundle matcher is adjusted at the ASD factory. If the customer has ordered several fiber optic configurations, it may be necessary to adjust this bundle matcher in order to achieve the highest signal to noise ratio and best instrument response.

  • Page 36: Led Check For Fiber Optic Cable

    LED Check for Fiber Optic Cable The TerraSpec spectrometer allows you to perform a visual verification of the internal fiber optic cable using built-in LEDs, a magnifier placed on the fiber optic bundle matcher, and the Fiber Check software.
  • Page 37 Chapter 4 Fiber Optic Interface Figure 4-7 Magnifier for testing the internal fiber optic cable. Step 5 On the instrument controller, exit any ASD applications that might be running and communicating with the unit. Such applications include RS and Indico.
  • Page 38 9/16 nut driver. Step 14 Inspect the external fiber optic cable disconnected from the instrument. Unscrew the lens from the magnifier and place it onto the short magnifier assembly ASD Document 600541 Rev. G TerraSpec® User Manual...
  • Page 39 For severely damaged internal fiber optic cables, send the instrument back to ASD Inc. in its carrying case for repairs. For severely damaged external fiber optic cables, order replacements from ASD Inc.
  • Page 40 Chapter 4 Fiber Optic Interface Notes: ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 41: Chapter 5 Batteries

    Gel Cell Electrolyte Rating: 12 V 9 amp hour Life: Over four (4) hours using a full-range TerraSpec spectrometer with a Contact Probe in an ambient environment. Nine (9) hours using a VNIR-only TerraSpec spectrometer with accessory not powered by the instrument in an ambient environment.

  • Page 42: Battery Charger

    Always store the battery in a cool, dry location. WARNING! Do not use batteries other than those supplied by ASD. Do not use ASD batteries in a manner unauthorized by ASD. Using improper batteries or improper use of ASD batteries could result in bodily injury or damage to the instrument.

  • Page 43: Application Battery Indicator

    Chapter 5 Batteries Application Battery Indicator and Indico applications from ASD have a Power Status. It is The RS located at the bottom of the main window next to the Connection Status.The voltage level of the spectrometer will be reported in the balloon type window.
  • Page 44 Chapter 5 Batteries Notes: ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 45: Chapter 6 Field Measurements

    • Instrument scanning time. • Spatial and temporal variability of the sample characteristics. Many of these parameters are controlled when using one of ASD’s standard sampling interfaces (e.g., MugLite or Contact Probe). Spectral measurements are desirable for many reasons. •...

  • Page 46: Illumination

    Step 1 Follow the instructions for plugging in the instrument and starting the RS software. Step 2 Attach an appropriate accessory. Remember that the TerraSpec spectrometer requires an external (artificial) light source. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 47: Indico Application

    Follow the instructions for plugging in the instrument and starting the Indico software. Step 2 Attach an appropriate accessory. Remember that the TerraSpec spectrometer requires an external (artificial) light source. Open a new project either by selecting File->New Project from the Step 3 pull-down menu.

  • Page 48: White Reference

    TerraSpec spectrometer using the white reference as the standard. Spectralon from Labsphere is the white reference standard that is very suitable for the VNIR and SWIR spectral ranges of ASD instruments. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 49: Spectralon Reflectance Data

    SRM-990. When SRM-990 is used as the white reference for a reflectance measurement with the TerraSpec spectrometer, an even closer reflectance value for the sample can be calculated. Table 6-1Labsphere's published reflectance data for uncalibrated Spectralon (+/- 0.5%) SRM-990 “Uncalibrated”...

  • Page 50: Maintaining Spectralon References

    If the material requires high resistance to deep UV radiation, the piece should be prepared as above, then either of the following two treatments performed. Flush the Spectralon piece with >18 milli-ohm distilled, deionized water for 24 hours. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 51: White Reference Procedures

    15 minutes while the instrument is warming up; thereafter, every hour or so is sufficient. The Spectralon puck should be used when optimizing and taking a white reference measurement. The TerraSpec spectrometer should be re-optimized for: • Light changes.
  • Page 52 Chapter 6 Field Measurements Notes: ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 53: Appendix A Troubleshooting

    For an established network, check that the Ethernet cable is a standard Ethernet cable. • Check that the IP Address is in the same range or subnet as the ASD spectrometer. The same subnet means that the first three octets of the IP address (xxx.xxx.xxx.___) match the spectrometer and the computer.
  • Page 54 For a wireless connection, type: ping 10.1.1.77 » Figure A-1 Run window with cmd. Figure A-2 Successful result of a ping operation. The default IP Address for the ASD spectrometer is: 10.1.1.11 for the Ethernet interface, or • 10.1.1.77 for the wireless interface.

  • Page 55: Does Not Connect Wireless

    Refer to section A.1, Common Communication Fixes. • Check to make sure the wireless adapter is in the same range as the ASD spectrometer. The default IP Address for the ASD spectrometer is: 10.1.1.11 for the Ethernet interface, or »...

  • Page 56: Does Not Connect To The Access Point

    If you are using encryption, then make sure you are using the same WEP • key in the spectrometer as the access point. • Move the access point, spectrometer, and instrument controller (computer) to the same room to test the connection. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 57: Spectrometer Loses Its Wireless Connection

    Common Communication Fixes. • Check to make sure the wireless adapter is in the same range as the spectrometer. The default IP Address for the ASD spectrometer is: 10.1.1.11 for the Ethernet interface, or » 10.1.1.77 for the wireless interface. »...
  • Page 58 Appendix A Troubleshooting Notes: ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 59: Appendix B Reference Information

    Spectrograph - An optical instrument for forming the spectrum of a light source and recording it on a film. The dispersing medium may be a prism or a diffraction grating. This term was common prior to the digital age. ASD instruments do not use film.

  • Page 60: What Are The Differences Between The Asd Spectrometers

    FieldSpec spectrometer can also be specially ordered as a high-resolution instrument, the main TerraSpec feature.) TerraSpec - is a high-resolution spectrometer specially designed for mining and geology applications. It is ideally suited for performing reflectance spectral measurements of rocks, minerals, and core samples. Its higher resolution is optimized for samples that have high absorption features.

  • Page 61: How Often Do I Need To Optimize

    What if I want to keep the same settings all day? Even if you could keep the same settings for the integration time, gain value, and offset value for the entire day, you probably wouldn’t want to. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 62: What Are The Units Of Radiance

    The TerraSpec spectrometer does not measure radiance, because this requires radiometric calibration files which are dependent on the fiber optic cable and its connection to the instrument. (The TerraSpec spectrometer can be used with different accessories and fiber optic cables.) The TerraSpec spectrometer measures only reflectance and transmission measurements.

  • Page 63: What Are These Steps In My Data

    Check how the external fiber optic cable is aligned with the internal cable for changes in signal through-put. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 64: Why Does The Vnir Drop To Zero After A Dark Current Collection

    GPS device. Step 3 Connect an appropriate cable between the instrument controller’s port and the GPS device. You may need a serial-USB converter depending upon the instrument controller and GPS device. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 65: What Does A Broken Fiber Mean

    WARNING! The fiber cable should never be stored with a bend of less than a 5" diameter for long periods of time. ASD Document 600541 Rev. G TerraSpec® User Manual...

  • Page 66: How Long Is The Battery Life

    ASD programs, such as RS and Indico, require real-time access to the data that is being streamed from the TerraSpec spectrometer at a high rate of speed. Programs running in the background can cause packets to be lost. ASD Document 600541 Rev. G...

  • Page 67: Why Does The Software Seem To Do Unexpected Things

    To assure accuracy in the collection and processing of data, the ASD application software is designed to finish its current operation before moving on. The TerraSpec spectrometer outputs a lot of data at a high rate of speed for the ASD application software to collect.

  • Page 68: Data Conversion

    (if the signal started out low to begin with) or a slight increase in dark current (increases with ambient temperature). Optimization The TerraSpec spectrometer must be re-optimized for: • Every 30 minutes when used with ASD’s Hi-Bright MugLite or contact probe. • Changes in temperature. ASD Document 600541 Rev. G...

  • Page 69: Spectrum Averaging (Or Sample Count)

    Shut down and let the instrument cool before operating again. You may also see the TerraSpec spectrometer saturate in the SWIR 2 region if the instrument is still coming to equilibrium from a cooler environment to a warmer environment.

  • Page 70: Compliance

    August 13, 2005. If you decide to end the use of the spectrometer, please do not discard as general waste. ASD will accept the return of your instrument for recycling purposes. Contact ASD Customer Service to arrange for the return of your instrument.

  • Page 71: Index

    Ethernet Ethernet cable Ethernet interface physical specification post-process data power port fiber check accessory fiber optic cables power requirements fiber optics power supply fiberoptic interface field-of-view FieldSpec QualitySpec Frequently Asked Questions (FAQ) © 2007 ASD Inc. TerraSpec® User Manual...
  • Page 72 TerraSpec trademarks trigger units of radiance ventilation visible/near-infrared VNIR VNIR dark current VNIR spikes warm up wavelength specification white reference Windows language settings wireless connection can’t get loses ASD Document 600541 Rev. G TerraSpec® User Manual...

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