Bomem-GRAMS User's Guide

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Section 4.1 Description • Instrument indicates the type of spectrometer or analyzer being used. This parameter cannot be edited in this dialog box; it is edited using the ABB FT- IR Control Panel applet. For information on using the Control Panel applet, refer to the FT-IR Spectrometer Ethernet Interface and External Ethernet for FT-IR User’s Guide. • Speed indicates the current acquisition speed in scans per minute (1 scan includes a forward and a reverse sweep). This parameter cannot be edited. • Over Sampling indicates whether the instrument is acquiring one sample per fringe and thus running in Mid IR mode with an upper wavelength limit around 8000 cm -1 (Over Sampling OFF) or two samples per fringe and running in Near IR mode with an upper wavelength limit around 16 000 cm -1 (Over Sampling ON). This parameter cannot be edited. • Detector selects the detector or channel or used to acquire data. The meaning of this field varies from instrument to instrument: On an FTPA2000-260 Process FT-IR Spectrometer this field corresponds to one of the fibre optic channels. On a Hand Held Diffuse Reflectance Probe only two detectors are defined, detector 1 corresponds to the diffuse reflectance probe, detector 2 corresponds to the fibre optic interface. On a standard FT-IR Spectrometer, detector 1 is the standard detector; detector 2 corresponds to the auxiliary or the external detector. • Resolution indicates the current instrument resolution and allows changing the resolution on instruments that support computer control. 28 Bomem-GRAMS User's Guide
Chapter 4 The Collect Menu l If only the second stage gain is available the first stage gain field will be disabled. • Gain First Stage and Second Stage l allow setting the preamplifier gains on instruments that support computer control. The Instrument Status and Control dialog box can remain active over the current page while other actions are being performed, in order to follow the state of the instrument. Changes to the state of the instrument are allowed during alignment or when there is no data acquisition. Changes to the state of the instrument are not allowed during data acquisition. However, if Use Auto Gain is selected in the Collect dialog box (see Section 4.1.3 on page 24), the gain may change automatically. 4.1.5 Halt Collect The Halt Collect command is used to stop data acquisition. Note: This command has no effect if there is no data acquisition in progress. 4.1.5.1 Data acquisition initiated by the Align command When data acquisition was initiated by the Align command, selecting the Halt Collect command will clear the current page. No data will be saved. 4.1.5.2 Data acquisition initiated by the Collect command When data acquisition was initiated by the Collect command, selecting the Halt Collect command will clear the current page. The Halt Collect dialog box will then appear. Halt Collect This dialog box appears after clicking Halt Collect in the Collect menu during data acquisition initiated by the Collect command. Bomem-GRAMS User's Guide 29
Page 1: Bomem-GRAMS User's Guide This manua
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Page 7 and 8: T ABLE OF CONTENTS About this Manua
Page 9: ABOUT THIS M ANUAL Audience a This
Page 12 and 13: Section 1.1 Check the signal Figure
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Page 16 and 17: Section 1.3 Acquire a sample spectr
Page 19: CHAPTER 2 BOMEM-GRAMS 2.1 Descripti
Page 22 and 23: Section 3.2 Computer requirements 3
Page 24 and 25: Section 3.3 Software installation F
Page 26 and 27: Section 4.1 Description Parameter S
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Page 30 and 31: Section 4.1 Description • Buffer
Page 32 and 33: Section 4.1 Description Threshold d
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Page 36 and 37: Section 4.1 Description j For trans
Page 40 and 41: Section 4.1 Description • Halt cu
Page 42 and 43: Appendix A Apodization Functions Na
Page 44 and 45: Appendix B Array Basic Interface Ar
Page 52 and 53: Appendix B Array Basic Interface Er
Page 54 and 55: Appendix B Array Basic Interface Er
Page 57 and 58: APPENDIX D GLOSSARY Note: The follo
Page 59 and 60: Appendix D Glossary blank sample A
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Page 63 and 64: Appendix D Glossary nonlinearity A
Page 65 and 66: Appendix D Glossary Lowering the re
Page 67 and 68: Appendix D Glossary The transmittan
Page 69: A Align............................
Page 72 and 73: general parameters initial delay...
Page 76: Analytical and Advanced Solutions 5

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