BENTHAM TLS120Xe Manuale utente
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Light. Measure. Excellence 3
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Light. Measurement. Excellence.
Product Guide
TL 120Xe
High Power Tuneable
Light ource
(280-1100nm)
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TL 120Xe Product Guide v1.
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Light. Measurement. Excellence.
Guide Overview
This product guide is intended to provide functional, operational,
installation and safety information for the TL 120Xe tuneable light source.
This guide is divided into four sections:
Regulatory & warranty information- includes pertinent regulatory
and commercial information.
TLS120Xe description- introduces the design and functionality of this
tuneable light source.
Operating the TLS120Xe- provides information and procedures on
how to setup and use the unit.
Ser icing and re-configuration- includes information on lamp and
slit changing.
afety Notices
In normal use, the TL 120Xe poses a potential optical radiation hazard.
Non-coherent optical radiation (280 nm-1100 nm)
emitted from the output aperture.
WARNING. Possibly hazardous UV and visible optical
radiation emitted from this product. Avoid eye and skin
exposure to unshielded product. Do not look at
operating lamp. Eye injury may result.
For further information please read section 3.1 and
consult the TL 120Xe photobiological safety report.
In order to change the lamp of the TL 120Xe, the user or service
personnel must open the top access panel. In so doing, one is exposed to
additional risks.
Please ensure all service personnel review sections
4.1.1 and 4.2.1 before servicing or re-configuring the
TL 120Xe.
Do not use this equipment other than in the manner
specified in section 1.1 of this product guide. If the
equipment is used in a manner other than specified by
the manufacturer, safety protections may be impaired.
Do not to position equipment in a manner which may
prevent access to power disconnection.
Clean outside of product only with damp cloth when
unit powered-off and disconnected from the mains
supply.
Always keep liquids away from the TL 120Xe.
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Do not subject the TL 120Xe to violent physical shock.
This may cause the lamp to explode.
Revision
This section records the document revision details.
Date
Version
Notes
January 2020
1.1
Fir
st release
June 2020
1.2
U
pdate safety information
January 2021
1.3
Updated safety warning
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Contents
Guide Overview ...................................................................... 2
afety Notice ................................................................................... 2
Revision .......................................................................................... 3
Regulatory & Warranty Information ......................................... 6
1.1 Intended Use ............................................................................. 6
1.2 Regulatory Compliance ............................................................... 6
1.3 Contact Bentham ....................................................................... 6
1.4 Notice for clients in the EU .......................................................... 6
1.5 Guarantee .................................................................................. 7
TL 120Xe Description ............................................................. 8
2.1 Features Overview...................................................................... 8
2.2 Optical Design Overview ............................................................. 9
2.3 Description of Features ............................................................. 10
2.4 Installation Requirements ......................................................... 11
2.5 hipped Components ................................................................ 11
2.6 Chassis Labels .......................................................................... 12
2.7 Consumables ........................................................................... 12
2.8 pecifications ........................................................................... 13
Operating the TL 120Xe ....................................................... 15
3.1 afety Notices .......................................................................... 15
3.2 etting up the TL 120Xe .......................................................... 16
3.3 Powering on/ off the TL 120Xe ................................................. 17
3.4 Manual Control ......................................................................... 18
3.5 Computer Control ..................................................................... 18
ervicing and Re-configuration .............................................. 20
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4.1 Changing slits .......................................................................... 20
4.1.1 afety Notices ....................................................................... 20
4.1.2 Overview .............................................................................. 20
4.1.3 Procedure ............................................................................. 20
4.2.1 afety Notices ....................................................................... 23
4.2.2 Overview .............................................................................. 24
4.2.3 Lamp Replacement ................................................................ 24
4.2.4 Optimising Lamp Position ....................................................... 27
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Regulatory & Warranty Information
1.1 Intended Use
The TL 120Xe is an ultraviolet- visible- near infrared monochromatic
tuneable light source (280 nm – 1100 nm) intended for laboratory (indoor)
use in the physical and life sciences.
1.2 Regulatory Compliance
CE Marking
*To be included in final version*
1.3 Contact Bentham
Bentham Instruments Limited
2, Boulton Road,
Reading, Berkshire,
RG2 0NH,
UK
www.bentham.co.uk
For technical support:
http://support.bentham.co.uk/
T:+44 (0)118 975 1355 (option 2)
For sales support:
sales@bentham.co.uk
T:+44 (0)118 975 1355 (option 1)
1.4 Notice for clients in the EU
This product is designated for separate collection at an
appropriate collection point in accordance with
European Community Directive 2012/19/EU.
Do not dispose of as household waste. Bentham are
fully WEEE compliant, our registration number is
WEE/CB0003ZR.
hould you need to dispose of our equipment please
telephone +44 (0) 113 385 4352/4356, quoting
account number 135419
1
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1.5 Guarantee
Bentham Instruments warrants each instrument to be free of defects in
material and workmanship for a period of one year after shipment to the
original purchaser. Liability under this warranty is limited to repairing or
adjusting any instrument returned to the factory for that purpose. The
warranty of this instrument is void if the instrument has been modified
other than in accordance with written instructions from Bentham, or if
defect or failure is judged by Bentham to be caused by abnormal
conditions of operation, storage or transportation.
This warranty is subject to verification by Bentham, that a defect or failure
exists, and to compliance by the original purchaser with the following
instructions.
Before returning the instrument, notify Bentham with full details of the
problem, including model number and serial number of the instrument
involved. After receiving the above information, Bentham will issue an RMA
reference number and provide shipping instructions.
After receipt of hipping instructions, ship the instrument “carriage paid” to
Bentham. Full liability for damage during shipment is borne by the
purchaser. It is recommended that instruments shipped to us be fully
insured and packed surrounded by at least two inches of shock-absorbing
material. pecific transit packaging as used in Monochromators etc. must
be installed.
Bentham reserves the right to make changes in design at any time without
incurring any obligation to install same on units previously purchased.
This warranty is expressly in lieu of all other obligations or liabilities on the
part of Bentham, and Bentham neither assumes, nor authorises any other
person to assume for it, any liability in connection with the sales of
Bentham’s products.
Nothing in this guarantee affects your statutory rights.
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TL 120Xe Description
2.1 Features Overview
A multitude of applications
The TL 120Xe easily fits into a
wide range of applications in
spectroscopy and
spectrophotometry to access the
optical properties of
components, materials and
photodetectors.
High optical power
Efficient coupling and optimised
operation of short arc xenon lamp
ensures high beam power.
Continuous tuning
A concave grating monochromator
provides narrow bandwidth and
high wavelength agility, giving you
the freedom to select the
wavelength you require.
Monitor source parameters
An OLED display reports
wavelength, bandwidth, burn time
and stability in real-time.
Monochromatic light
at your fingertips
Choose the wavelength you want,
with direct front panel control or
automation over U B.
Range of fibre output options
A range of fibre and light guides are
on offer to adapt to your
application.
2.
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2.2 Optical Design Overview
The TL 120Xe is a tuneable light source operating over the spectral range
280 nm to 1100 nm. It houses an ultra-quiet short-arc xenon light source,
starter and constant current power supply with a 120mm focal length
concave grating monochromator in a single 19” rack (4U) unit. With a single
mains power input, the TL 120Xe offers plug and play functionality, with
direct front panel control or automation over U B.
The arc of a short arc xenon lamp is placed at the primary focal point of an
AlMgF
2
coated ellipsoidal reflector. At the secondary focal point of the
ellipsoidal reflector is located the rectangular entrance slit of a concave
grating constant deviation monochromator. A four-position filter wheel is
located behind the entrance slit, fitted with a shutter and two long pass
filters (O 400 and O 700) to supress diffraction orders other than the first
diffraction order.
A 1200 g/mm, ruled concave diffraction grating (380 nm blaze wavelength) is
mounted on an on-axis rotating turret driven by stepper motor having a drive
resolution of 0.5 arcsec per step.
The grating spectrally disperses the broadband optical input light and re-
focusses the dispersed light onto a rectangular exit slit, transmitting a narrow
band of wavelengths defined by the largest width of the entrance and exit
slits. Rotating the diffraction grating allows selection of the transmitted
wavelength over the range 280nm to 1100nm.
A pair of biconvex lenses focus light transmitted through the slit onto the
optical fibre/ liquid light guide of choice. An iris diaphragm allows control of
the level of illumination.
The xenon lamp should be changed if it has failed or if the power output has
fallen below the recommended level of 87.5% of the initial output (nominally
2000 hours). The TL 120Xe includes a monitor photodiode and amplifier to
enable output monitoring during lamp alignment.
Please read section 1.6 for recommended replacement
lamps and section 3.2 for the lamp replacement
procedure.
The bandwidth of the TL 120Xe is defined by the width of the
entrance and exit slits as shown in table 1.
Please read section 3.1 for the procedure to change slits.
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Grating line density (g/mm) 1200
Reciprocal Dispersion (nm/mm)
2.70
Slit Width (mm) Bandwidth (nm)
0.74 5
1.48 10
2.96 20
5.92 40
Table 1: Bandwidth of TLS120Xe
2.3 Description of Features
TL 120Xe Iris diaphragm
Main switch Lamp power switch
Wavelength selection switch Monitor port
Display U B 2.0 port
Output port
Figure 1: TLS120Xe features
Indice
