Specac GS12000 Series User manual

Polarizer Rotator 3” x 2” Slide Mount
For Benchmark®/GS12000 Serie
Polarizer
User Manual
2I-12500-6

Polarizer Rotator 3” x 2” Slide Mount
For Benchmark®/GS12000
Serie Polarizer
User Manual
2I-12500-6

User Manual
2
Polarizer Rotator 3” x 2” Slide Mount For
Benchmark®/GS 2000 Series Polarizers - P/N
GS 2500
CONTENTS - USER MANUAL
1. I NTRODUCTION ................................................................................. 3
2. U NPACKING AND C HECKLIST ............................................................. 4
3. I NSTRUCTIONS F OR U SE ................................................................... 5
T HE P OLARIZER R OTATOR 3" X 2" S LIDE M OUNT ............................... 5
F ITTING A GS12000 S ERIES P OLARIZER INTO THE P OLARIZER
R OTATOR 3" X 2" S LIDE M OUNT P N GS12500 ................................. 7
R OTATING THE GS12000 S ERIES P OLARIZER .................................. 10
G ENERAL C AUTIONS AND C ARE OF THE P OLARIZER ......................... 10
4. L EGEND - B UBBLE N UMBER P ART I DENTIFICATION ............................ 11
5. S PARE P ARTS ................................................................................ 11
© May 2018 Specac Ltd. All rights reserved.
Brilliant Spectroscopy is a trademark of Specac Ltd.
Other product names mentioned herein may be trademarks
of their respective owners.

Polarizer Rotator 3” x 2” Slide Mount For GS12000 Series Polarizers
3
. Introduction
Thank you for purchasing a Specac Product.
The polarizer rotator mount P N GS12500 is a rotatable 3” x 2” slide
mount allowing for the installation and use of the Specac
Benchmark® GS12000 Series polarizers. The polarizer rotator 3” x 2”
slide mount is simply installed into a spectrometer sample
compartment via any conventional 3” x 2” slide mounting plate that is
offered as the mount support system of the spectrometer itself.
A GS12000 Series polarizer is placed centrally into the polarizer rotator
3” x 2” slide mount and the polarizer can then be rotated to present a
specific plane of polarized light for sample analysis.
In addition to the 3” x 2” slide mounting plate on the P N GS12500
rotator mount, there are slot grooves on either side at the front of the
rotator mount, whereby an Infrared Accessory that can be installed for
use into a spectrometer via its own 3” x 2” slide mounting plate, can be
directly attached to the polarizer rotator 3” x 2” slide mount and thus
have the capability to be subjected to polarizable light from a suitable
GS12000 Series polarizer as fitted.
This user manual will instruct how to place a GS12000 Series polarizer
into and for use of the polarizer rotator 3” x 2” slide mount. For any
GS12000 Series polarizer that is to be used, please consult the
polarizers own user instruction manual. (Document 2I-12000-4)

User Manual
4
2. Unpacking and Checklist
The polarizer rotator 3” x 2” slide mount P N GS12500 can be supplied
on its own or together with a dedicated GS12000 Series polarizer, if
both these items have been ordered as a Benchmark® Polarizer Kit
via P N’s GS12501, GS12502, GS12503, GS12504 or GS12505.
If the items have been ordered as a Kit they are supplied in a plastic
carry case. If the items have been ordered separately, they will be
supplied in their own individual packing.
On receipt please check that the following items have been supplied.
• A GS12500 polarizer rotator 3” x 2” slide mount in a Styrofoam
box. (If ordered as P N GS12500.)
• A GS12000 Series polarizer of your choice and a polarizer rotator
3” x 2” slide mount P N GS12500 in a plastic carry case. (If both
items ordered as a Benchmark Polarizer Kit).
Caution!
When removing the items from their packing be especially
careful with the GS12000 Series polarizer if ordered. he
polarizer grid is very fragile and you must avoid contact
with the polarizer substrate surface, otherwise the polarizer
grid could be irreparably damaged. It is advisable to store
the GS12000 Series polarizer in its original packing
container when not being used.

Polarizer Rotator 3” x 2” Slide Mount For GS12000 Series Polarizers
5
3. Instructions for Use
The Polarizer Rotator 3” x 2” Slide Mount
The polarizer rotator 3” x 2” slide mount (1) is shown in Fig 1. for its
front view and in Fig 2. for its rear view.
Fig 1 Front Side View of Rotator 3” x 2” Slide Mount P/N GS12500
In operation, as shown from the front side view (Fig 1 ), a GS12000
Series polarizer is placed into the aperture opening (2) using the spring
clip ring mount of the GS12000 Series polarizer to obtain a tight,
secure fit. Once the polarizer has been correctly positioned into the
aperture (2), it can be rotated to present to or discriminate for a specific
angle of polarized light from rotational adjustment by hand of the
angular, graduated wheel (3). From a correct fitting of the polarizer into
5
3
2
1
4
6

User Manual
6
the aperture (2), and by rotation of the graduated wheel (3), the correct
angle of polarized light from the polarized grid orientation laid onto the
substrate material of the polarizer itself, can be read from the angle
viewing window (4).
The front of the polarizer rotator 3” x 2” slide mount (1) carries the two
groove slots (5) that allow for the mounting of an FTIR accessory that
carries a 3” x 2” slide mounting plate itself for installation into a
spectrometer. The 3” x 2” slide mount plate of the Accessory simply
slides into the two grooves (5) and in this way a polarizer can be
introduced into any beam path of light to or from the Accessory (and a
sample) to discriminate for polarized light.
When a 3” x 2” slide mounted Accessory is installed for use into the
polarizer rotator 3” x 2” slide mount (1) using the groove slots (5), the
angle viewing window (4) will be obscured from reading a specific
angle that may be set on the GS12000 Series polarizer itself. However,
there is an additional marked notch (6) on the side of the rotator mount
(1) that can be used to align to any of the angle marks on the
graduated wheel (3) for reading if required.
Note: he angle reading from alignment of a graduated mark on the
wheel (3) with the notch (6) will always be a difference of 90° to
the angle reading as displayed at the viewing window (4).
In operation, as shown from the rear side view (Fig 2 ), the polarizer
rotator 3” x 2” slide mount (1) (ideally with a GS12000 polarizer already
fitted) is installed into the 3” x 2” slide mount plate of a spectrometers
mount system using the slide mount runners (7) at the side edges of
the rear plate assembly. Also, at the rear, there is a tightening thumb
screw (8). This can be used to secure a 3” x 2” slide mounted
Accessory when attached to the rotator mount (1) via the groove slots
(5) as described. Turning the screw (8) clockwise will apply pressure to
the 3” x 2” slide plate of the Accessory forcing the plate overall against
the groove slots (5) for a tighter fit with no lateral movement of the
Accessory. The screw (8) needs to be removed completely if the 3” x
2” slide mount plate system of the spectrometer does not allow for a
correct beam height fit of the polarizer rotator 3” x 2” slide mount (1)
when the screw (8) is in place.

Polarizer Rotator 3” x 2” Slide Mount For GS12000 Series Polarizers
7
Fig 2 Rear Side View of Rotator 3” x 2” Slide Mount P/N GS12500
Fitting a GS12000 Series Polarizer into the Polarizer
Rotator 3” x 2” Slide Mount P/N GS12500
As shown at Fig 3. and Fig 4. please see how a GS12000 Series
polarizer is fitted into the polarizer rotator 3” x 2” slide mount (1).
From Fig 3 the GS12000 Series Polarizer is to be positioned within
the aperture (2) of the rotatable mount (1) with the knurled surface side
of the spring clip ring mount of the polarizer facing outwards such that
the metal tab is seen. In this way the polarized grid deposited on the
surface side of the substrate material of the polarizer is facing inwards
to aperture (2) of the rotatable mount (1) and helps to minimize any
risk of accidental touching of this surface from finger print marks, when
installing the polarizer.
8
1
2
7
5
3

User Manual
8
Fig 3 Insertion of GS12000 Series Polarizer into the Polarizer
Rotator 3” x 2” Slide Mount
Tip: It is advisable to wear gloves when handling any polarizer to avoid
getting fingermarks on the polarizer substrate material (1) and to
prevent any damage to the polarizer grid.
To mount the GS12000 Series polarizer firmly into the aperture port
(2), the metal tab on the spring clip ring mount of the polarizer may
need to be bent slightly outwards, away from the centre of the
polarizer. This movement will very slightly alter the overall
circumference of the retaining spring clip ring for a tighter fit into the
circular recess of the aperture (2) of the rotatable mount (1). Introduce
the smooth face of the spring clip ring mount of the polarizer towards
the aperture (2) and very carefully push the polarizer - BY THE RING
1
2
Ensure Metal Tab on
Ring is at 12 O’clock
This Surface of Polarizer to
be Showing When Fitted
4
3

Polarizer Rotator 3” x 2” Slide Mount For GS12000 Series Polarizers
9
MOUNT PART ONLY – into the aperture port (4) until it engages and is
a nice tight fit. If it is a loose fit, adjust the tension by bending the metal
tab accordingly. If doing so, be careful not to touch the substrate
material surface of the GS12000 Series polarizer.
As shown in Fig 3 the metal tab on the spring clip ring mount of the
GS12000 Series polarizer should be aligned for insertion into the
aperture (2) at a 12 O’clock position with respect to the polarizer
circular face. (See Fig 4 ) When the polarizer is installed in this
position in the aperture (2), the lines of parallelism of the polarizer grid
are running from the 12 O’clock to the 6 O’clock position of the
polarizers circular face. When inserting the polarizer in this orientation
ensure that the angle mark showing in the rotator mount (1) viewing
window (4) is set at the 0° (zero degrees) position by necessary
rotation of the graduated wheel (3). The lines of parallelism for the
polarizer grid can be designated as positioned at an angle of 0° (zero
degrees) and by convention in this orientation of the polarizer, light that
is S (perpendicular) polarized is transmitted through the polarizer.
Fig 4 A GS12000 Series Polarizer Fitted into P/N GS12500
4
3
Metal
Tab

User Manual
10
Rotating the GS12000 Series Polarizer
The GS12000 Series polarizer can be rotated and set for any angle
from 0° through to 90° when positioned in the polarizer rotator 3” x 2”
slide mount (1).
With the GS12000 Series polarizer being “fixed” in such a position in
the aperture (2) as described, when the graduated wheel (3) is rotated
such that the 90° mark is showing in the viewing window (4), then the
lines of parallelism of the polarizer grid would be running from a 9
O’clock to 3 O’clock position whilst in the aperture port (2). The lines of
parallelism can be designated as positioned at an angle of 90° (ninety
degrees) compared to the 0° positioning from installation and by
convention in this orientation of the polarizer grid in the rotatable mount
(1), light that is P (parallel) polarized is transmitted through the
polarizer.
General Cautions and Care of the Polarizer
The GS12000 Series polarizer grid consists essentially of very fine
aluminium lines being deposited on a substrate material and they can
very easily be damaged due to incorrect handling of the polarizer.
There is a certain level of protection of the GS12000 Series polarizer
surface when it is fitted in the rotator 3” x 2” slide mount (1) but should
the polarizer grid be affected in any way by finger marks, dust or dirt, it
is very likely that the performance of the polarizer will be seriously
impaired, and in certain cases the damage that has been sustained is
irreparable. A new polarizer will be required.
Hence, some general rules to follow to care for your polarizer are:
• Do not touch, rub or abrade the polarizing grid or substrate surface.
• Do not wash the polarizing grid with organic solvents.
• Any dust that may be present on either surface of the substrate
material should be gently blown clear using an air or nitrogen line.
• Always store the polarizer in its original packing container when not
being used. If a Benchmark® Polarizer Kit was supplied, the
GS12000 Series polarizer may be kept fitted into the rotator 3” x 2”
slide mount (1) and the whole assembly of parts can be stored in the
supplied plastic carry case.

Polarizer Rotator 3” x 2” Slide Mount For GS12000 Series Polarizers
11
4. Legend – Bubble Number Part Identification
(1) Polarizer rotator 3” x 2” slide mount.
(2) Aperture to mount a GS12000 Series polarizer.
(3) Rotatable, graduated wheel to rotate the polarizer.
(4) Viewing window for angle of polarized grid orientation.
(5) Slide grooves to mount a 3” x 2” slide mounted Accessory.
(6) Notch for angular reading at side of rotatable mount.
(7) 3” x 2” slide mount runners on rear plate of rotator mount.
(8) Securing screw for 3” x 2” slide mounted Accessory.
5. Spare Parts
Polarizer Rotator 3” x 2” Slide Mount and Kits
GS12500 Benchmark® polarizer rotator 3” x 2” slide mount.
GS12501 KRS-5 Benchmark® Polarizer Kit.
GS12502 Germanium Benchmark® Polarizer Kit.
GS12503 CaF
2
Benchmark® Polarizer Kit.
GS12504 BaF
2
Benchmark® Polarizer Kit.
GS12505 ZnSe Benchmark® Polarizer.
Polarizers
GS12000 KRS-5 substrate Benchmark® Polarizer.
GS12700 Germanium substrate Benchmark® Polarizer.
GS12800 CaF
2
substrate Benchmark® Polarizer.
GS12900 BaF
2
substrate Benchmark® Polarizer.
GS12950 ZnSe substrate Benchmark® Polarizer.

User Manual
12
Notes for GS 2000 Series Polarizer Use

Worldwide Distribution
France
Eurolabo - Paris.
Tel.[phone]
Fax [phone]
email: [e-mail]
Germany
L.O.T. - Oriel GmbH & Co,
KG - Darmstadt
Tel: [phone]
Fax: [phone]
email:[e-mail]
Website: www.LOT-Oriel.com de
Japan
Systems Engineering Inc. -Tokyo
Tel: [phone]
Fax: [phone]
email:[e-mail]
Website: www.systems-eng.co.jp
Spain
Teknokroma S.Coop C. Ltda
Barcelona
Tel: [phone]
Fax: [phone]
email: [e-mail]
Switzerland
Portmann InstrumentsAG
Biel-Benken
Tel: [phone]
Fax: [phone]
email: [e-mail]
Website:www.portmann-instruments.ch
USA
SPECAC INC.
414 Commerce Drive
Suite 175,
Fort Washington,
PA 19034, USA
Tel: [phone]
Fax: [phone]
United Kingdom
Specac Ltd. - London
River House, 97 Cray Avenue,
Orpington
Kent BR5 4HE
Tel: [phone]
Fax: [phone]
Registered No. 1008689 England

Brilliant Spectro copy™
www.specac.com
SPECAC INC
414 Commerce Drive
Suite 175,
Fort Washington,
PA 19034, USA
Tel: [phone]
Fax: [phone]
SPECAC LTD
River House, 97 Cray Avenue,
Orpington
Kent BR5 4HE
Tel: [phone]
Fax: [phone]
Registered No. 1008689 England