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OTM-20
Optical Test Meter
Installation and Operation Handbook
ONE-YEAR LIMITED WARRANTY
Videotek, Inc. warrants that this product is free from defects in materials and workmanship for a period of one year from the date
of purchase. During this warranty period, Videotek will, at its option, repair or replace defective products at no charge for the
parts or labor. Batteries are not covered in the warranty.
For warranty service or repair, this product must be returned to a service facility designated by Videotek in the original packing or
its equivalent. The purchaser shall insure the product and prepay shipping charges to Videotek, and Videotek shall insure the
product and pay shipping charges to return the product to the purchaser.
The foregoing warranty shall not apply to defects or damage resulting from improper or inadequate maintenance by the
purchaser, connecting the product to incompatible equipment, misuses, operation outside any environmental specification for the
product, improper site preparation or maintenance, or attempts by personnel other than authorized Videotek representatives to
repair or service the product.
No other warranty is expressed or implied. Videotek specifically disclaims the implied warranties of merchantability and fitness for
a particular purpose. The remedies provided by the foregoing warranty are the purchaser's sole and exclusive remedies.
Videotek shall not be liable for any direct, indirect, special, incidental or consequential damages, whether based on contract, tort,
or otherwise.
Printed February 2007
Item #261345 Rev. A
Copyright © 2006 - 2007 by Videotek, Inc.
All rights reserved.
Contents of this publication may not be reproduced in any form without permission of Videotek, Inc.
This instrument, in whole or in part, may be protected by one or more US or foreign patents or patent applications.
Specifications subject to change without notice.
___________________________________________________________________________________________________________
Videotek and the Videotek logo are registered trademarks of Videotek, Inc.
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Related Manuals for Harris OTM-20
Summary of Contents for Harris OTM-20
- Page 1 OTM-20 Optical Test Meter Installation and Operation Handbook ONE-YEAR LIMITED WARRANTY Videotek, Inc. warrants that this product is free from defects in materials and workmanship for a period of one year from the date of purchase. During this warranty period, Videotek will, at its option, repair or replace defective products at no charge for the parts or labor.
- Page 2 Videotek. Should you have any questions concerning this Agreement, or if you desire to contact Videotek for any reason, please write: Videotek, Inc. 243 Shoemaker Road Pottstown, PA 19464-6433 OTM-20 Installation and Operation Handbook...
- Page 3 Use caution when cleaning the equipment; isopropyl alcohol or similar solvents can damage or remove the labels. • Observe any additional safety instructions specified in this manual. These symbols may appear on Videotek equipment: Explanation of Symbols OTM-20 Installation and Operation Handbook...
- Page 4 (See the Leitch Web site, www.leitch.com, for more information on dates and deadlines for compliance.) Contact your local Leitch sales representative for information on returning these products for recycling. Leitch equipment that complies with the EU directive will be marked with a WEEE-compliant symbol, as shown in Figure 2. OTM-20 Installation and Operation Handbook...
- Page 5 Figure 2. WEEE Compliance Symbol OTM-20 Installation and Operation Handbook...
- Page 6 Blank Page OTM-20 Installation and Operation Handbook...
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Page 7: Table Of Contents
Laser Source........................3-13 Laser On/Off ......................3-14 Auto Test........................3-15 Recall ..........................3-17 Clear..........................3-18 Auto Off .......................... 3-19 Language ........................3-19 Set Default ........................3-19 Section 4 ♦ Data Collection Software Introduction ........................... 4-1 OTM-20 Installation and Operation Handbook... - Page 8 Figures Figure 1-1. The OTM-20......................1-2 Figure 2-1. OTM-20 Series Panel..................... 2-1 Figure 3-1. The Front OTM-20 Panel ..................3-1 Figure 3-2. Boot-up GUI of Optical Test Meter................. 3-2 Figure 3-3. Power Meter Interface.................... 3-2 Figure 3-4. Laser Source Interface................... 3-3 Figure 3-5.
- Page 9 Figure 4-8. Browse Saved Records..................4-5 Figure 4-9. Printing Stored Data ....................4-6 Figure 4-10. Power Auto Trace Interface.................. 4-6 Tables Table 3-1. Description of the Front OTM-20 Panel ..............3-1 Table 3-2. Description of the GUI ..................... 3-3 OTM-20 Installation and Operation Handbook...
- Page 10 Contents Blank Page OTM-20 Installation and Operation Handbook...
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Page 11: Section 1 ♦ Introduction
Section 1 ♦ Introduction NOTE: Please read the manual carefully before using any of the Harris fiber-optic instruments. Always observe the warnings and cautions appearing throughout this manual. Bodily injury or damage to the instrument can be caused when not following directions. -
Page 12: Safety Information
Violation of the safety standards of the instruments will occur if such safety precautions are not adopted or the user fails to obey the special warning in other parts of this manual. Harris will not take any responsibility for the results caused by not following these requirements. -
Page 13: Service And Support
• Always replace protective dust caps on the detector port when the instrument is not being used. Protective Sleeve: Keep the soft plastic sleeve on the OTM-20 to avoid possible damage. Service and Support Upon receiving the instrument, please check for any obvious signs of physical damage that may have occurred during shipment. - Page 14 • To prevent shipping damage, pack the unit the same way Videotek had packed it. If possible, use the original packing materials in the original shipping container. • Ship the unit to: Videotek, Inc. 243 Shoemaker Road Pottstown, PA 19464-6433 Attn: Service Dept. OTM-20 Installation and Operation Handbook...
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Page 15: Section 2 ♦ Installation
This section provides information about inspecting and configuring the OTM-20. Inspecting the Shipment The OTM-20 is carefully assembled and undergoes a rigorous mechanical, electrical, and optical inspection prior to shipment. Inspect the box and the contents. Report any damage to the shipper and telephone the Videotek Customer Service Department for service and support (see Section 1, “Service and Support”). -
Page 16: Maintenance Of Batteries
CAUTION: Avoid looking directly at the optic output. The laser is a non-visible laser. Maintenance of Batteries The battery used for the Harris OTM-20 is the NiMH battery. Cautions during Operation: Auto Power Off occurs under the following conditions: •... -
Page 17: Section 3 ♦ Operation
Description On/Off This button turns the instrument on and off. After the unit is powered on, under the default state, the OTM-20 automatically shuts down when buttons have not been pressed for five minutes and not performing Auto Trace. Func Press to toggle between the Laser Source interface and the Power Meter interface. -
Page 18: Gui
Press FUNC and the instrument will enter the Power Meter interface, as shown in Figure 3-3. Figure 3-3. Power Meter Interface Press FUNC again to switch between the Power Meter interface and the Laser Source interface. The Laser Source interface is shown in Figure 3-4. OTM-20 Installation and Operation Handbook... -
Page 19: Gui Display
Batteries power the instrument. When the instrument is powered by the rechargeable batteries, the charge volume of the batteries is shown on the LCD: (Table continues on next page OTM-20 Installation and Operation Handbook... -
Page 20: Wavelength
ENTER button to enter the activated sub menu. Press the QUIT button to return to a higher-level menu. The Main Menu includes the following menu selections: Power Meter Laser Source Auto Test Recall OTM-20 Installation and Operation Handbook... -
Page 21: Power Meter
W/dBm, and press the ENTER button to enter the configuration shown in Figure 3-7. Use the [ ] buttons to scroll through the menu bar to select the item. Press ENTER to confirm. The selected unit of measure is marked with “ ”. OTM-20 Installation and Operation Handbook... -
Page 22: Reference
Figure 3-8. Reference Configuration Under this configuration menu, there are three function menus: “DRef,” “Ref Value,” and“Ref:” Set current tested power value as the relative DReF reference value. Ref Value Set the relative reference value OTM-20 Installation and Operation Handbook... -
Page 23: Precision
Reference in the Power Meter mode, and then press QUIT to exit level by level. The Absolute Measurement is now displayed, as shown in Figure 3-3. Precision There are three precision selections, as shown in Figure 3-10: “0.1dB,” “0.01dB,” and “0.001dB.” OTM-20 Installation and Operation Handbook... -
Page 24: Average
“*” indicates the selected menu item. After the configuration is set, press QUIT to exit to the higher-level menu. The selections are not saved to memory, and will return to the default value after the unit is powered off. “Average Off” is the default. OTM-20 Installation and Operation Handbook... -
Page 25: Buzzer
• Buzzer Min: The Buzzer Min specific operation process is similar to Buzzer Max; please refer to the above procedures. • Buzzer On/Off: In the Buzzer menu, press [ ] to select “Buzzer On/Off.” Press ENTER to activate or deactivate the buzzer. When “*” appears, it means the OTM-20 Installation and Operation Handbook... -
Page 26: Auto Trace
A different trace time can be chosen by pressing [ ] and then pressing ENTER to confirm. After the trace time is selected, the instrument will start auto tracing, as shown in Figure 3-15. Figure 3-15. Auto Trace in Progress 3-10 OTM-20 Installation and Operation Handbook... -
Page 27: Figure 3-16. Tracing Finished
PC, otherwise the screen will be lost. The activation of another auto trace will overwrite the trace already in memory. A viewable auto trace can only be achieved if the reference parameters are set and there is a level response in the bar on OTM-20 Installation and Operation Handbook 3-11... -
Page 28: Zero
After the auto calibration, the display will be as shown in Figure 3-19. Figure 3-19. Auto Zero Success If the input is not completely enclosed, it may cause calibration failure, as shown in Figure 3-20. Calibration must be successful for general operation. 3-12 OTM-20 Installation and Operation Handbook... -
Page 29: Scale
] to scroll through the menu and highlight Laser Source. Press ENTER to enter the Laser Source menu, as shown in Figure 3-22. After configuration is established, press the QUIT button to exit to the Main menu. OTM-20 Installation and Operation Handbook 3-13... -
Page 30: Laser On/Off
QUIT button to exit to the higher-level menu. The selections are not saved to memory and return back to the default value after the unit is powered off. Figure 3-23. Laser CW/MD Configuration The default set is CW (continuous wave). 3-14 OTM-20 Installation and Operation Handbook... -
Page 31: Auto Test
Figure 3-25. Figure 3-25. Auto Test Menu • Manually Set Loss: Users can precisely configure the loss of the 1310nm and 1550nm wavelength, so as to increase the accuracy of the optical fiber length. OTM-20 Installation and Operation Handbook 3-15... -
Page 32: Figure 3-26. Manual Configuration Of Loss
• Auto Test Report: After the completion of the Auto Test, the instrument screen will display the report of the auto test result, as shown in Figure 3-28. Browse the test results in the1310nm and 1550nm wavelength by pressing [ 3-16 OTM-20 Installation and Operation Handbook... -
Page 33: Recall
The screen will display the stored ENTER records of this wavelength (or “auto test”). Browse all stored records by pressing ], as shown in Figure 3-30. After completion, press the QUIT button to exit to the higher-level menu. OTM-20 Installation and Operation Handbook 3-17... -
Page 34: Clear
ENTER to enter the Delete Record menu, as shown in Figure 3-32. Select YES and ENTER for confirmation. All stored records of the selected wavelength or auto test will be deleted and then automatically return to the CLEAR menu. 3-18 OTM-20 Installation and Operation Handbook... -
Page 35: Auto Off
Press the ENTER button to access the Set Default interface, as shown in Figure 3-33. After selecting YES or NO, press ENTER to confirm. The instrument will perform the relevant operation and exit to the main menu. OTM-20 Installation and Operation Handbook 3-19... -
Page 36: Figure 3-33. Set Default Confirmation Gui
Operation Figure 3-33. Set Default Confirmation GUI 3-20 OTM-20 Installation and Operation Handbook... -
Page 37: Section 4 ♦ Data Collection Software Introduction
Section 4 ♦ Data Collection Software Introduction The OTM-20 upload application is software that allows the stored measurement records in the instrument to be uploaded to a PC through an RS-232 port to be ® displayed, saved, or printed. The data saving format is compatible with Microsoft Excel. -
Page 38: Menu And Tool Bar
Data Collection Software Figure 4-1. OTM-20 Data Collection Software GUI Menu and Tool Bar On the main screen select the COM port where the device is located. Click FILE. The File menu appears, as shown in Figure 4-2. The File menu items are: •... -
Page 39: Upload Records
Figure 4-4. Draw Menu Upload Records Click the UPLOAD (RS-232 plug icon) button to start automatically uploading the selected records determined by the Recall menu. The sample screen is shown in Figure 4-5. Figure 4-5. Upload Records OTM-20 Installation and Operation Handbook... -
Page 40: Save Records
Browse Stored Data Stored data can be reopened, browsed, and reviewed. Click the OPEN (folder icon) button. Select a file from the OPEN dialog box and click the OPEN button, as shown in Figure 4-7. OTM-20 Installation and Operation Handbook... -
Page 41: Printing Stored Data
To close the opened file, click CLOSE (folder with arrow icon) button. Figure 4-8. Browse Saved Records Printing Stored Data After uploading or opening a stored record file, click the PRINT (printer icon) button. The Printer Dialog appears, as shown in Figure 4-9. OTM-20 Installation and Operation Handbook... -
Page 42: Auto Trace Drawing
In the figure: Max.: The maximum value of the records. Min.: The minimum value of the records Avg.: The average value of the records. Ref.: The reference value (set to the 0.0 value in the graph) OTM-20 Installation and Operation Handbook... -
Page 43: Exit The Software
PRINT button to print the displayed curve. Single-click the CLOSE button to close the displayed curve drawing window. Exit the Software Select the EXIT menu item to close the File menu and exit the application. OTM-20 Installation and Operation Handbook... - Page 44 Data Collection Software Blank Page OTM-20 Installation and Operation Handbook...
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Page 45: Section 5 ♦ Troubleshooting
Refer all servicing to qualified service personnel. Maintenance and Replacing of Batteries The battery for the Harris OTM-20 is a rechargeable NiMH battery. All the NiMH batteries have been correctly installed and factory tested. Please do not open the instrument to replace batteries. -
Page 46: Calibration Requirements
Troubleshooting Calibration Requirements Calibration is recommended every three years. Please contact Videotek Customer Service. OTM-20 Installation and Operation Handbook... -
Page 47: Appendix A ♦ Specifications
Wavelength (nm) ≥ -7 dBm Output Power ≤ 5 Spectral Width (nm) Short Time: ±0.05 dB/15 min Stability Long Time: ±0.10 dB/8 hr @ 1310/1550nm 270/1K/2KHz Modulation Frequency FC/PC (input only SC, ST) Connector Type OTM-20 Installation and Operation Handbook... -
Page 48: Mechanical
4.4" (11.2 cm) Depth: 2.3" (6 cm) Weight 2.0 lbs (0.88 kg) Environmental Operating temperature 0° to +50°C Storage temperature -20° to +70°C Humidity 10 to 90% (non-condensing) Specifications are subject to change without notice. OTM-20 Installation and Operation Handbook... -
Page 49: Index
Save Records, 4-4 Power Meter Menu, 3-5 System Requirements, 4-1 Precision, 3-7 Upload Records, 4-3 Printing Stored Data, 4-6 DC, 3-4 Draw Menu, 4-3 RA. See Return Authorization Recall, 3-17 Environmental Record Menu, 4-3 OTM-20 Installation and Operation Handbook Index-1... - Page 50 Set Default, 3-19 W/dBm, 3-15 Shipment Wavelength Switching, 3-4 Returning to Videotek, 1-4 Software Activate, 4-1 Zero, 3-12 Auto Trace Drawing, 4-6 Browse Data, 4-4 Exit, 4-7 Item Number 261345 Rev. A Printed 02/07 Index-2 OTM-20 Installation and Operation Handbook...