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L1050070A

PerkinElmer Ltd, Chalfont Road, Seer Green,

Beaconsfield, BUCKS, HP9 2FX, United Kingdom.

Produced in the UK.

General Purpose Optical Bench w ith

External LiTaO

Detector Accessory

A Spectrum 100 Series or Spectrum 400 Series FT-IR instrument can be fitted with a General

Purpose Optical Bench. The optical bench is supplied with a parabolic mirror assembly, and an

external LiTaO

detector/pre-amplifier module. The optical bench is bolted to the external

accessory bracket, which is fitted in the handhold on the right of the instrument.

Figure 1 General Purpose Optical Bench with External LiTaO

Detector

This document describes how to:

•

Install a window in the right-hand external beam port;

•

Fit, and remove, the optical bench;

•

Fit the mirror and detector/pre-amplifier modules to the optical bench;

•

Configure Spectrum or Spectrum Express software to use an external detector;

•

Use Spectrum or Spectrum Express software to select the accessory;

•

Optimizing the performance of the detector/pre-amplifier;

•

Connect another type of detector/pre-amplifier to the instrument.

Optical bench

Mirror assembly

LiTaO3 detector /

pre-amplifier module

External

beam port

Fixing bolt

Fixing block

Содержание FT-IR

Страница 1: ...in the handhold on the right of the instrument Figure 1 General Purpose Optical Bench with External LiTaO3 Detector This document describes how to Install a window in the right hand external beam port Fit and remove the optical bench Fit the mirror and detector pre amplifier modules to the optical bench Configure Spectrum or Spectrum Express software to use an external detector Use Spectrum or Spe...

Страница 2: ...ternal LiTaO3 Detector accessory is supplied for use as an experimental test bed The user configurable nature of this product means that PerkinElmer cannot guarantee the level of immunity to external electromagnetic interference EMI or the possibility that the product may itself cause interference to other nearby equipment It is therefore the responsibility of the user to consider Electromagnetic ...

Страница 3: ...n the Spectrum Manuals CD L1050002 CAUTION Never remove the window in the external beam and leave this port open to atmosphere If the spectrometer is fitted with KBr optics do not exchange the window if the humidity is 45 relative humidity The humidity sensitive optics will be damaged if subjected to a relative humidity in excess of the specified level CAUTION Be careful not to touch or otherwise ...

Страница 4: ...eter refer to the Spectrum 100 Series User s Guide L1050021 or Spectrum 400 Series User s Guide L1050056 These are distributed as pdf files on the Spectrum Manuals CD L1050002 Before you begin make sure you have read and understood the Warnings and Safety Information beginning on page 2 Fitting a Window in the Right hand External Beam Port 1 Switch off the spectrometer and then remove the power ca...

Страница 5: ...window lines up with the notch in the main cover Figure 4 Window installed in main cover 7 Secure the window to the main cover by fitting the screws and washers and tightening the screws using the hexagonal wrench Figure 4 8 Close and secure the main cover 9 Plug in and switch on the instrument Seal Main cover Screw and washer Screw and washer Screw and washer Screw and washer Notch and key Notch ...

Страница 6: ...tions at the near left and far left corners of the optical bench until the fixing block is free 2 Place a spring washer and then a plain washer on each bolt push the M8 bolts supplied through the plain holes in the fixing block and then carefully align the bolts with the threaded holes in the external accessory bracket Figure 5 Attaching the fixing block to the external accessory bracket 3 Use a 6...

Страница 7: ...ent is powered 1 Use a hexagonal key to carefully and evenly undo the two M6 socket head bolts from the threaded fixing positions at the near left and far left corners of the optical bench until the bench is free of the fixing block 2 Lift the optical bench off the fixing block and carefully place it to one side 3 Using a 6 mm hexagonal key undo the two M8 socket head bolts that attach the fixing ...

Страница 8: ...table It should be connected to the detector pre amplifier module via the underside of the circuit board on the base of the module See Figure 7 2 Bolt the detector module sub base to the optical bench using two M6 bolts NOTE One of the bolt holes is easily accessible on the left side of the detector preamplifier module The other is accessed through a hole drilled in the upper plate behind the circ...

Страница 9: ...llows adjustment to give an acceptable signal level To ensure that some signal is present but the pre amplifier is not overloaded when the power is applied turn the gain potentiometer screw fully counter clockwise until it clicks its minimum setting and then give it two turns clockwise 5 Connect the detector pre amplifier module to the instrument EXT R connector For more information about aligning...

Страница 10: ...rometers or Spectrum version 6 3 3 or later or Spectrum Express version 1 2 or later for the Spectrum 100 Series Spectrometers This section describes how to create a modified instrument configuration file for use with an external detector NOTE It is not necessary to power the instrument to complete this procedure 1 Browse to C pel_apps bin The instrument configuration file is named C cfg where is ...

Страница 11: ...ct the instrument serial number The configuration file is opened for editing 6 Right click in the external accessory area to the right of the beampath diagram The Add Port dialog is displayed CAUTION The ServiceIR folder contains a number of utilities many of which are for use solely by a PerkinElmer Service Engineer If used incorrectly some utilities could damage the instrument ...

Страница 12: ...lect Right Ext in the Select Site pane select LiTaO3 in the Select Type pane and then click Install The selection in the Select Type pane defines the default wavenumber range of the detector The default range for the supplied LiTaO3 detector is 10 000 cm 1 to 370 cm 1 The Add Detector dialog closes and becomes 10 Right click The Add mirror dialog is displayed 11 Select Moveable in the Select Type ...

Страница 13: ...ion 3 Rename C intdet the backup of your original internal detector configuration file as C cfg NOTE If a backup of the original configuration file was not made uninstall the instrument and then re install it using the configuration disk supplied with the instrument Selecting the External Detector using Spectrum or Spectrum Express Software Before you begin make sure that The required version of S...

Страница 14: ...is displayed informing you that the detector may be damaged by the NIR beam You should only select the Yes option to continue if an attenuator has been fitted in the beam or you are confident that the detector can withstand the infrared energy that will be directed at it The external detector is selected The optical bench is indicated by the baseplate icon at the top right of the Scan and Instrume...

Страница 15: ...ct the Setup menu and then click Instrument 2 Select the Setup Instrument BeamPath tab 3 Select Right external as the Beam Location from the drop down list The external LiTaO3 detector is selected NOTE The Beam Location field is displayed in the settings table only when an external detector is configured ...

Страница 16: ...splay tab is displayed OR If you have Spectrum Express software switch to Monitor by clicking on the Measurement toolbar and then click Energy to display the signal detected by the detector The Live tab is displayed 4 To obtain the maximum energy value use The mirror module vertical adjustment screw Figure 10 The detector tilt and focus screws Figure 11 Figure 11 Detector tilt and focus adjustment...

Страница 17: ... to the Instrument For details of how to use another type of detector preamplifier module with the General Purpose Optical Bench refer to the leaflet Spectrum 100 and 400 Series Right hand External Beam Option L1050069A provided on the Spectrum Manuals CD L1050002 ...

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