OPTOKON OFT-920 User manual

is registered trademark of OPTOKON, a.s. Other names and trademarks mentioned herein may be the
trademarks of their respective owners.
OPTOKON, a.s. Cerveny Kriz 250, 586 01 Jihlava, Czech Republic
tel. [phone], fax [phone], WWW.OPTOKON.COM, [email protected]Z
s/w: 3.2
09/12/2016
OFT-920
Ruggedized Optical Loss Test
Set
USER MANUAL
Revision 3.2

OFT-920 USER MANUAL
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is the registered trademark of OPTOKON, a.s. Other names and trademarks mentioned
herein may be the trademarks of their respective owners
All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic,
or mechanical, including photocopying, recording, taping or information storage and retrieval systems - without
the written permission of the publisher.
Products that are referred to in this document may be either trademarks and/or registered trademarks of the
respective owners. The publisher and the author make no claim to these trademarks.
While every precaution has been taken in the preparation of this document, the publisher and the author
assume no responsibility for errors or omissions, or for damages resulting from the use of information
contained in this document or from the use of programs and source code that may accompany it. In no event
shall the publisher and the author be liable for any loss of profit or any other commercial damage caused or
alleged to have been caused directly or indirectly by this document.
OPTOKON, a.s.
Cerveny Kriz 250
586 01 Jihlava
Czech Republic
tel. [phone]
fax [phone]
WWW.OPTOKON.COM
[e-mail]

OFT-920 USER MANUAL
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Content
1Introduction.................................................................................................. 4
2Features........................................................................................................6
3Application ....................................................................................................6
4Accessories ...................................................................................................6
4.1 Standard........................................................................................................................6
4.2 Options:........................................................................................................................6
5Specifications ................................................................................................7
5.1 Light Source.................................................................................................................7
5.2 Power Meter.................................................................................................................7
5.3 Loss Test Set ................................................................................................................7
6Safety information......................................................................................... 8
7Maintenance.................................................................................................. 9
7.1 Battery care and replacement.......................................................................................9
7.2 Instrument care...........................................................................................................11
7.3 Optical connector care................................................................................................11
8Button function description........................................................................... 12
8.1 Menu #1 .....................................................................................................................13
8.2 Menu #2 .....................................................................................................................14
8.3 Menu #3 .....................................................................................................................15
8.4 Menu #4 .....................................................................................................................16
8.5 Menu #5 .....................................................................................................................17
SAVE RESULT ...................................................................................................................17
LOAD RESULT...................................................................................................................17
UPLOAD MEMORY...........................................................................................................18
9Measuring loss............................................................................................. 19
9.1 Basic theory................................................................................................................19
9.2 Method 6 - two instruments .......................................................................................20
9.2.1 Setting the reference .........................................................................................20
9.2.2 Measuring Loss.................................................................................................21
9.3 Method 6 - one instrument.........................................................................................22
9.3.1 Setting the reference .........................................................................................22
9.3.2 Measuring Loss.................................................................................................23
9.4 Method 7 - two instruments .......................................................................................24
9.4.1 Setting the reference .........................................................................................24
9.4.2 Measuring Loss.................................................................................................25
9.5 Method 7 - one instrument.........................................................................................26
9.5.1 Setting the reference .........................................................................................26
9.5.2 Measuring Loss.................................................................................................27
10 Ordering information .............................................................................. 28
10. Setting up data transfer.......................................................................... 29
11. Power loss and decibels.......................................................................... 32
12. Notes..................................................................................................... 33
13. Calibration, service center....................................................................... 36

OFT-920 USER MANUAL
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1Introduction
The OFT-920 optical test set is designed for testing optical networks terminated with
connectors operating in harsh environments. It combines both a light source and
optical power meter in one common box. The OFT-920 test set is designed to meet
the tactical military and broadcast industry demand. The ruggedized aluminum case
makes the unit ideal for field operation.
General description:
-front view

OFT-920 USER MANUAL
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-top view:
-rear view: