Oriel 75160NF User manual

S 75160NF
Oriel® Chopper Controller
Quick Start Guide
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M75160NF-QSG, Rev B

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1 GENERAL INFORMATION
Thank you for your purchase of this chopper controller from Oriel Instruments.
Please carefully read all documents supplied for important safety precautions prior to setting up
and operating this equipment. This Quick Start Guide describes how to install a chopper wheel,
make all electrical connections and set the chopping frequency using an internal reference.
Please note that if a wheel is bent during the installation/removal process, it can be
very difficult to straighten again. This may degrade the chopper controller’s stability of
operation, and a replacement wheel may be required.
For additional operating parameters, a troubleshooting guide and other information, please refer
to the Model 75160NF user’s manual. The user manual may be downloaded in an Adobe
Reader .pdf file from www.Newport.com.
If there are any questions, contact Newport Corporation or the representative through whom
this equipment was purchased.
Confidentiality & Proprietary Rights
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The Newport programs and all materials furnished or produced in connection with them ("Related Materials") contain trade secrets
of Newport and are for use only in the manner expressly permitted. Newport claims and reserves all rights and benefits afforded
under law in the Programs provided by Newport Corporation.
Newport shall retain full ownership of Intellectual Property Rights in and to all development, process, align or assembly technologies
developed and other derivative work that may be developed by Newport. Customer shall not challenge, or cause any third party to
challenge the rights of Newport.
Preservation of Secrecyand Confidentiality and Restrictions to Access:
Customer shall protect the Newport Programs and Related Materials as trade secrets of Newport, and shall devote its best efforts to
ensure that all its personnel protect the Newport Programs as trade secrets of Newport Corporation. Customer shall not at any time
disclose Newport's trade secrets to any other person, firm, organization, or employee that does not need (consistent with
Customer's right of use hereunder) to obtain access to the Newport Programs and Related Materials. These restrictions shall not
apply to information (1) generally known to the public or obtainable from public sources; (2) readily apparent from the keyboard
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First printing 2014
© 2015 by Newport Corporation, Irvine, CA. All rights reserved.
No part of this manual may be reproduced or copied without the prior written approval of Newport Corporation.
This manual has been provided for information only and product specifications are subject to change without notice.
Any change will be reflected in future printings.
Newport Corporation 1791 Deere Avenue Irvine, CA, 92606 USA

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2 HARDWARE SETUP
Select a chopper wheel to be installed based on the desired frequency and maximum allowable
beam size.
Number of
Apertures
Frequency
Range
Maximum
Beam Size
2
4 to 140 Hz
32 mm
5
25 to 350 Hz
28 mm
12
60 to 800 Hz
13.7 mm
30
150 to 2000 Hz
4.6 mm
To install a chopper wheel into the chopper head, first loosen the four (4) philips head screws
that hold the cover in place; slide the cover off.
Using a 3/32 hex head wrench, remove the three (3) socket head cap screws and the wheel hub
washer from the center hub of the chopper head.
Insert the chopper wheel in the gap of the photodetectors and reattach the hub washer and
screws.
Reattach the cover and tighten all cover screws.
The enclosed chopper includes a set of apertures that match the beam size to the wheel
aperture. The aperture is inserted into the female flange.
Remove the pan head screw in the flange just above the motor, insert the proper aperture
and replace the pan head screw to hold aperture in place. The correct aperture matches the
maximum beam size. Note that the flange acts as the aperture for the two aperture wheel.

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Connect one end of the CLB-75160 cable to the chopper head and secure it using the screws
included with the cable.
Install the chopper head in the desired location. The chopper head may be rotated in whichever
direction is most convenient for connecting the cable to the chopper controller.
Insert one end CBL-75160NF cable to the back of the chopper controller at the connector
labeled “MOTOR”.
Verify the electrical mains meets the requirements noted on the back of the chopper controller.
Insert the power cable into the back of the controller and then connect it to the electrical mains.
Power up the controller by depressing the Power switch on the front of the unit, and then adjust
the operating parameters as desired.

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3 SETTING THE FREQUENCY
Using the WHEEL button on the chopper controller, set the wheel type to match the frequency
range desired. To change the wheel type, push the Wheel button until the LED lights under the
desired wheel type.
Wheel Type 2 = 4 Hz to 213 Hz
Wheel Type 60 = 120 Hz to 2.00 kHz
Using the Sync button, select the source to be internal. To change the Sync source, push the
Sync button until the INT LED lights.
Select the Mode to be NORMAL. To change the Mode selection, press the Mode button until
the NORMAL LED lights.
Press the Set button until the FREQ LED is lit. The internal synthesizer frequency may be set to
three significant digits. The significant digit to be modified may be selected by the left and right
arrow keys. The magnitude of the digit may be changed with the up and down arrow keys. If the
display overflows or underflows, the display will change between the Hz/kHz LEDs and move
the decimal point to maintain three significant digits of resolution.
Press the Measure button until the SYNC IN LED is lit. This displays the chopping frequency.
NOTE: Do not take any measurements until the chopper controller has locked in on the
desired frequency.
The red UNLCK LED indicates when the Chopper is not synchronized to an internal or external
sync frequency. In addition, the UNLCK LED will blink when an external sync frequency
exceeds the limits for a particular wheel.
4 SAVING AND RECALLING THE SETUP
To save the setting, press the Set button until the STORE LED lights. Use the up and down
arrow keys to assign the instrument setup number, 1-9. Press the left or right arrow key to save
the settings under the setup number. If the setup is not saved, upon powering up the chopper
controller, it will revert to its last operating parameters before it was shut down.
To recall an instrument setup, press the Set button until the RECALL LED lights. The up and
down arrow keys are used to select the instrument setup number, again, ranging from 0 to 9.
Press the left or right arrow key to recall the displayed instrument setup. The display will blink
when the recall process is complete.
To restore the chopper controller to its default factory settings, recall setup 0.