EXFO Inline Power Meter User Manual

Power Meter and VFL

User Guide

Copyright © 2010–2013 EXFO Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, be it electronically, mechanically, or by any other means such as photocopying, recording or otherwise, without the prior written permission of EXFO Inc. (EXFO).

Information provided by EXFO is believed to be accurate and reliable. However, no responsibility is assumed by EXFO for its use nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent rights of EXFO.

EXFO’s Commerce And Government Entities (CAGE) code under the North Atlantic Treaty Organization (NATO) is 0L8C3.

The information contained in this publication is subject to change without notice.

Trademarks

EXFO’s trademarks have been identified as such. However, the presence or absence of such identification does not affect the legal status of any trademark.

Units of Measurement

Units of measurement in this publication conform to SI standards and practices.

Version number: 3.0.0

ii Power Meter and VFL

Contents

1 Introducing the Optional Power Meter and VFL ....................................... 1

Conventions ............................................................................................................................1

Safety Information ..................................................................................................................2

Certification Information ........................................................................................................2

2 Using the Optional Power Meters and VFL ................................................. 3

Nulling Offsets ........................................................................................................................4

Setting Thresholds and Correction Factors ..............................................................................5

Setting Reference Values on Your Power Meter ......................................................................9

Measuring Power or Insertion Loss .......................................................................................10

Saving Results Files ...............................................................................................................17

Opening Result Files .............................................................................................................18

Clearing Measurements from the Display .............................................................................19

Adding Information to Your Results ......................................................................................20

Generating Result Reports ...................................................................................................21

Identifying Fiber Faults Visually with the VFL ........................................................................23

3 Maintenance and Troubleshooting ........................................................... 25

Viewing Online Documentation ............................................................................................25

Installing a Unit You Have Purchased Separately ...................................................................25

Recalibrating the Unit ...........................................................................................................26

Contacting the Technical Support Group ..............................................................................28

Transportation ......................................................................................................................28

4 Warranty ..................................................................................................... 29

General Information .............................................................................................................29

Liability .................................................................................................................................30

Exclusions .............................................................................................................................31

Certification ..........................................................................................................................31

Service and Repairs ...............................................................................................................32

EXFO Service Centers Worldwide ..........................................................................................33

Index ................................................................................................................ 35

Power Meter and VFL iii

1 Introducing the Optional

Power Meter and VFL

Your unit can be equipped with an optical power meter to measure absolute power (dBm or W) or insertion loss (dB). The power meter can detect modulated signals (1 kHz, 2 kHz, 270 Hz and 330 Hz).

The built-in power meter can also include a visual fault locator (VFL) to inspect or identify fibers.

Conventions

Before using the product described in this guide, you should understand the following conventions:

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Do not proceed unless you understand and meet the required conditions.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. Do not proceed unless you understand and meet the required conditions.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in component damage. Do not proceed unless you understand and meet the required conditions.

IMPORTANT

Refers to information about this product you should not overlook.

Power Meter and VFL 1

Introducing the Optional Power Meter and VFL

Safety Information

The laser and electrical safety information pertaining to your unit is specific to the unit you are using. Please refer to the corresponding user documentation for more details.

Certification Information

The certification and declaration of conformity for your unit is specific to the unit you are using. Please refer to the corresponding user documentation for more details.

2 Power Meter and VFL

2 Using the Optional Power

Selected wavelength

To s w i t c h b e tw e e n

available power meter

wavelengths

To take a new reference

measurement

Measured power or insertion loss

To switch between dB, dBm

and W as measurement units

To store a reading to the Measurements window

To activate VFL and change VFL mode

To perform an offset

nulling

Meters and VFL

Note: If a feature is only available for one type of power meter, it is indicated

specifically in the corresponding title or instructions.

Note: Some buttons are not available when you first access the Power Meter

application, but will be available after you tap Add for the first time or after you open a file.

Below is a description of the Power Meter buttons and functions.

Power Meter and VFL 3

Using the Optional Power Meters and VFL

Nulling Offsets

Temperature and humidity variations affect the performance of electronic circuits and optical detectors, which can offset measurement results. To compensate for this offset, the unit is equipped with an offset nulling function.

Your unit has been designed not to require offset nulling under normal operation, but you should perform it whenever environmental conditions change significantly or when measuring very low power values.

IMPORTANT

Light must not reach the detector when nulling offsets. Always use an EUI or protective screw cap. Do not use a soft rubber cover.

To perform an offset nulling:

1. Tighten the protective cap on the power meter port.

2. From the Instrument View tab, tap Offset Nulling.

The nulling process may take a moment, depending on the type of power meter you are using.

4 Power Meter and VFL

Using the Optional Power Meters and VFL

Setting Thresholds and Correction Factors

You can define thresholds to specify acceptable power or insertion loss values for each wavelength. Thresholds are usually supplied by system manufacturers and depend on the system deployed.

When the measurement status is “Pass”, the value is displayed in green in the Instrument View tab, on the Measurements list, and in reports.

When the measurement status is “Fail”, the value is displayed in white over a red background in the Instrument View tab, on the Measurements list and in reports.

Note: A power measurement (in dBm) will be considered as “Fail” when its value

is outside the defined absolute power threshold.

Note: An insertion loss measurement (in dB) will be considered as “Fail” when its

value is greater than the insertion loss threshold.

You must select the pass/fail status feature for the application to take into account the defined thresholds and display the appropriate status icons. By default, this feature is not selected.

Power Meter and VFL 5

Using the Optional Power Meters and VFL

Power

corrected

Power

measured

CF=

Setting Thresholds and Correction Factors

You may apply a correction factor (CF) to measured power to compensate for inaccuracies or drifts. You should change the CF after performing an offset nulling.

where:

Pow er

corrected

measured

= the corrected power value

= the measured power value

CF = the correction factor

For each favorite wavelength, the CF is set to 1.00 at the factory, but allowed values range between 0.85 and 1.15.

Note: Some other products express the CF in dB, so the CF would be added to

measured power.

IMPORTANT

If you revert to factory settings, you will erase all your thresholds and correction factors. The pass/fail status feature will be disabled automatically.

6 Power Meter and VFL

Using the Optional Power Meters and VFL

Setting Thresholds and Correction Factors

To set thresholds or correction factors:

1. From the Instrument View tab, tap Setup, then select the

Wavelengths and Thresholds tab.

2. Select Apply thresholds (Pass/Fail status) to apply the thresholds and display the relevant information in the Instrument View tab of the main window.

3. From the Wavelengths list, select the wavelength for which you want to set a threshold or a correction factor.

Power Meter and VFL 7

Using the Optional Power Meters and VFL

Correction factor for selected wavelength

To revert to default values

To m a k e t h e t h r e s ho l d active for selected wavelength

To select the units used for the absolute power value (has no effect on the measurement range)

Setting Thresholds and Correction Factors

4. Modify the thresholds or correction factor for the selected wavelength.

To apply these settings to all of the wavelengths in the list, tap Apply These Settings to All Wavelengths.

8 Power Meter and VFL

Using the Optional Power Meters and VFL

Setting Reference Values on Your Power Meter

In Reference mode, your unit displays the loss created by the fiber under test only, since it subtracts a reference value from the measured power.

You can set a different reference value for each wavelength. A reference value remains in memory until a new one is stored at the same wavelength.

If the source and power meter you are using has auto-wavelength or auto-switching capacity, you can take the reference value automatically for each wavelength as well.

To set reference values to use in Reference mode:

1. Check your fibers and clean them properly.

2. Using the proper adapter and test jumpers, connect a light source to

your power meter.

3. From the Instrument View tab, select the wavelength in the list. Activate the source at the same wavelength.

If you want to use the auto-wavelength or auto-switching mode, enable it on the source, then select Auto in the wavelength list (for more information on the auto-wavelength or auto-switching mode, see Measuring Power or Insertion Loss on page 10).

4. Ta p Reference to save the current power value as the new reference. It will appear on the upper-right corner of the data display.

Power Meter and VFL 9

Using the Optional Power Meters and VFL

Measuring Power or Insertion Loss

Measuring absolute power or link (insertion) loss is done the same way, except for the referencing step. You can take power or insertion loss measurements and save them for further analysis.

IMPORTANT

If you intend to take measurements with a very low power level using the built-in power meter, make sure that your testing conditions are optimal to ensure the best results (for example, do not use the VFL).

You can either perform measurements manually and select each wavelength yourself, or you can use the auto-wavelength and auto-switching modes of your source, if the model allows it.

Note: Not all power meters have auto-wavelength and auto-switching detection

capacities. If the auto mode is not available, you cannot select it in the Wavlength list. However, if the power meter has the capacity, but the auto mode is still not available, a firmware update may be required. Please contact EXFO to see how to proceed to update the firmware.

10 Power Meter and VFL

Using the Optional Power Meters and VFL

Measuring Power or Insertion Loss

To perform power or insertion loss measurements manually:

1. If necessary, perform an offset nulling (see Nulling Offsets on page 4).

2. Check your fibers and clean them properly.

3. For insertion loss measurements, reference your power meter to a light

source (see Setting Reference Values on Your Power Meter on page 9), then deactivate the light source.

4. If you have used a single reference patchcord, disconnect it from the power meter port only, then attach a second reference patchcord to

the power meter.

If you have used two reference patchcords, disconnect both of them at the bulkhead.

Power Meter and VFL 11

Using the Optional Power Meters and VFL

Measuring Power or Insertion Loss

5. Using bulkhead adapters or the system patch panels, connect a fiber under test to reference patchcord attached to the light source and power meter.

6. From the Instrument View tab, use the list to select a wavelength. Activate the source at the same wavelength.

7. Ta p Add to transfer the displayed values to the Measurements list.

Note: If you tap Add just after switching to another measurement unit, the

application will prompt you to save any unsaved measurements. You must either save these measurements and close the file, or discard them (see Clearing Measurements from the Display on page 19) before being able to add values expressed in the new measurement unit.

8. Repeat the procedure for other wavelengths.

9. Once your work is complete, tap Save.

IMPORTANT

If you specify a name that already exists, the original file will be overwritten and only the new file will be available.

12 Power Meter and VFL

Using the Optional Power Meters and VFL

Measuring Power or Insertion Loss

To perform power or insertion loss measurements using the auto wavelength or auto switching modes of your source:

1. If necessary, perform an offset nulling (see Nulling Offsets on page 4).

2. Check your fibers and clean them properly.

3. For insertion loss measurements, reference your power meter to a light

source (see Setting Reference Values on Your Power Meter on page 9), then deactivate the light source.

4. If you have used a single reference patchcord, disconnect it from the power meter port only, then attach a second reference patchcord to

the power meter.

If you have used two reference patchcords, disconnect both of them at the bulkhead.

5. Using bulkhead adapters or the system patch panels, connect a fiber under test to reference patchcord attached to the light source and power meter.

IMPORTANT

In auto wavelength or switching mode, there is a small delay (about 2 seconds per wavelength) allowed for refreshing the values. When switching from one fiber to another, wait for these few seconds to make sure that the measurement you are reading is not a residual measurement from the previous fiber.

Power Meter and VFL 13

Using the Optional Power Meters and VFL

Measuring Power or Insertion Loss

6. From the Instrument View tab, select Auto. Activate the source with the auto-wavelength or auto-switching mode.

Readings with more than one wavelength appear on-screen at the same time when the auto-switching feature is enabled on the source.

If the auto-wavelength or auto-switching mode are not activated for your source, and that you try to use the auto feature of the power meter, you will be notified clearly in red, and no reading is displayed.

14 Power Meter and VFL

Using the Optional Power Meters and VFL

Measuring Power or Insertion Loss

7. Ta p Add to transfer the displayed values to the Measurements list. In auto-switching mode, the measurements are added for all wavelengths at once, using one line per wavelength.

Note: If you tap Add just after switching to another measurement unit, the

8. Once your work is complete, tap Save.

IMPORTANT

If you specify a name that already exists, the original file will be overwritten and only the new file will be available.

Power Meter and VFL 15

Using the Optional Power Meters and VFL

To change the fiber name (in the case of multiple

wavelengths, they are all changed at the same time)

Fiber name

To delete the selected row from the table (in

the case of multiple wavelengths, they are

all deleted at the same time)

Wavelength at which power or

insertion loss was measured

Insertion loss measurement (in dB) or power measurement (in dBm)

Average power

or insertion loss

measured per

wavelength

Measuring Power or Insertion Loss

To view and edit power or insertion loss measurements:

1. Select the Measurements tab. All your measurements are displayed in

the order they were performed.

2. Ta p Rename to rename the fiber, tap Delete to remove the selected value from the list, or Clear All to remove all measurements from the list.

16 Power Meter and VFL

Using the Optional Power Meters and VFL

Saving Results Files

Once you have added measurements to your list, you might want to save them onto a file for future consultation.

To save a measurement file:

1. From the main window, tap Save As.

2. If desired, change the name and location, then tap Save.

Power Meter and VFL 17

Using the Optional Power Meters and VFL

Opening Result Files

You can open results files that are stored on your unit or on a USB memory key. If you need more flexibility and a greater choice of report types, you can also transfer results files to a computer onto which EXFO’s Fas t Re p or t er i s i ns t al l ed .

IMPORTANT

The file that you will open includes the threshold values and job information that you had set when you saved that file. These settings will replace the current settings.

To open results files:

1. From the button bar, tap Open.

2. If necessary, change the location from which the file should be

opened. The application will keep in memory the last selected folder.

3. From the given list of files, select the file to open.

4. Confirm with OK.

If you have already performed power measurements, but not saved them, the application will prompt you to save your work. You must either save or discard the unsaved measurements before being able to open a file.

5. To view the reopened file, go to the Measurements tab. The power or insertion loss measurements are displayed on the results list.

18 Power Meter and VFL

Using the Optional Power Meters and VFL

Clearing Measurements from the Display

When measurements do not meet your requirements, you can clear the display and start over.

Note: Clearing measurements from the display does not delete them from the

disk (if they were saved previously).

To clear power measurements:

1. From the button bar, tap Close.

From the Measurements tab, tap Clear All.

If you have not saved the measurements already, the application will warn you that you will lose your work if you continue.

2. When the application prompts you, proceed as follows:

 Select Yes if you want to discard your measurements.

 Select No if you want to keep them, and then, from the button bar,

tap Save.

Power Meter and VFL 19

Using the Optional Power Meters and VFL

Adding Information to Your Results

A report is available to keep notes on the measurements, the location of the tested fiber, the type of job performed, and general comments. This information will be saved, along with your measurements, in the power meter results file. When you open the results files with applications such as EXFO’s FastReporter (installed on a computer), all the information that you entered will be available.

To speed up information entry, once you have provided the required data, the contents is kept in memory. This information will be used for all new results.

To add information to your results:

1. From the button bar, tap Setup, and then select the Job Information

tab.

2. Enter information in the appropriate boxes.

3. Ta p OK to confirm.

The information that you have entered will be copied to all the new files (and reports) that you create.

20 Power Meter and VFL

Using the Optional Power Meters and VFL

Generating Result Reports

You can generate reports directly from your unit in PDF format.

You can modify the information related to customer, cable and job (see Adding Information to Your Results on page 20).

Depending on the information you want in your report, you can include the statistics, the pass/fail thresholds, or both.

To select the items to include in your report:

1. From the main window, tap Setup, then select the Report tab.

2. Select which items you want to include in the reports.

3. Ta p OK to confirm your choice.

Power Meter and VFL 21

Using the Optional Power Meters and VFL

Generating Result Reports

To generate a power measurement report:

1. From the button bar, tap Report.

2. If desired, change the location for the file.

3. Enter a name for your file.

4. Ta p OK to save your report.

22 Power Meter and VFL

Using the Optional Power Meters and VFL

Identifying Fiber Faults Visually with the VFL

The optional visual fault locator (VFL) helps you identify bends, faulty connectors, splices and other causes of signal loss. It can also help the person at the other end of the link to identify the fiber under test, which could be particularly useful when working with cables containing many fibers.

From its dedicated port, the VFL emits a red signal which becomes visible at the location of a fault on the fiber. This signal can be continuous (CW) or blinking (1 Hz).

WARNING

When the VFL is active, the VFL port emits visible laser radiation. Avoid exposure and do not stare directly into the beam. Protect any unused port with a cap.

Power Meter and VFL 23

Using the Optional Power Meters and VFL

Identifying Fiber Faults Visually with the VFL

To activate the VFL and inspect a fiber:

1. Clean the connectors properly.

2. Connect the fiber under test to the VFL port.

3. If necessary, from Mini Toolbox, on the Main Menu, tap Power Meter

and VFL.

4. Select the Instrument View tab.

5. Ta p ON/Blink/OFF to change the VFL state.

6. Without looking directly into the beam, examine the fiber. If light is

coming out of the rubber jacket or on the side of the ferrule, the fiber is defective.

24 Power Meter and VFL

3 Maintenance and

Troubleshooting

Viewing Online Documentation

An online version of the Power Meter and VFL user guide is available at all times from the application.

Note: You will also find a printable PDF version on your installation DVD.

To access online help:

At the bottom of the Main Menu, tap .

Installing a Unit You Have Purchased Separately

If you have purchased your power meter unit separately, please refer to the corresponding unit user documentation for important information on how to install your unit, or remove it for maintenance or calibration purposes.

Power Meter and VFL 25

Maintenance and Troubleshooting

Recalibrating the Unit

EXFO manufacturing and service center calibrations are based on the ISO/IEC 17025 standard (General Requirements for the Competence of Testing and Calibration Laboratories). This standard states that calibration documents must not contain a calibration interval and that the user is responsible for determining the re-calibration date according to the actual use of the instrument.

The validity of specifications depends on operating conditions. For example, the calibration validity period can be longer or shorter depending on the intensity of use, environmental conditions and unit maintenance, as well as the specific requirements for your application. All of these elements must be taken into consideration when determining the appropriate calibration interval of this particular EXFO unit.

Under normal use, the recommended interval for your Power Meter and VFL is: one year.

For newly delivered units, EXFO has determined that the storage of this product for up to six months between calibration and shipment does not affect its performance (EXFO Policy PL-03).

26 Power Meter and VFL

Maintenance and Troubleshooting

Recalibrating the Unit

To help you with calibration follow-up, EXFO provides a special calibration label that complies with the ISO/IEC 17025 standard and indicates the unit calibration date and provides space to indicate the due date. Unless you have already established a specific calibration interval based on your own empirical data and requirements, EXFO would recommend that the next calibration date be established according to the following equation:

Next calibration date = Date of first usage (if less than six months after the calibration date) + Recommended calibration period (one year)

To ensure that your unit conforms to the published specifications, calibration may be carried out at an EXFO service center or, depending on the product, at one of EXFO’s certified service centers. Calibrations at EXFO are performed using standards traceable to national metrology institutes.

Note: You may have purchased a FlexCare plan that covers calibrations. See the

Service and Repairs section of this user documentation for more information on how to contact the service centers and to see if your plan qualifies.

Power Meter and VFL 27

Maintenance and Troubleshooting

Contacting the Technical Support Group

To obtain after-sales service or technical support for this product, contact EXFO at one of the following numbers. The Technical Support Group is available to take your calls from Monday to Friday, 8:00 a.m. to 7:00 p.m. (Eastern Time in North America).

Technical Support Group

400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA

For detailed information about technical support, and for a list of other worldwide locations, visit the EXFO Web site at www.exfo.com.

If you have comments or suggestions about this user documentation, you can send them to customer.feedback.manual@exfo.com.

1 866 683-0155 (USA and Canada) Tel.: 1 418 683-5498 Fax: 1 418 683-9224 support@exfo.com

Transportation

Maintain a temperature range within specifications when transporting the unit. Transportation damage can occur from improper handling. The following steps are recommended to minimize the possibility of damage:

 Pack the unit in its original packing material when shipping.

 Avoid high humidity or large temperature fluctuations.

 Keep the unit out of direct sunlight.

 Avoid unnecessary shocks and vibrations.

28 Power Meter and VFL

4 Warranty

General Information

EXFO Inc. (EXFO) warrants this equipment against defects in material and workmanship for a period of 1 year from the date of original shipment. EXFO also warrants that this equipment will meet applicable specifications under normal use.

During the warranty period, EXFO will, at its discretion, repair, replace, or issue credit for any defective product, as well as verify and adjust the product free of charge should the equipment need to be repaired or if the original calibration is erroneous. If the equipment is sent back for verification of calibration during the warranty period and found to meet all published specifications, EXFO will charge standard calibration fees.

The warranty can become null and void if:

 unit has been tampered with, repaired, or worked upon by

unauthorized individuals or non-EXFO personnel.

 warranty sticker has been removed.

IMPORTANT

 case screws, other than those specified in this guide, have been

removed.

 case has been opened, other than as explained in this guide.

 unit serial number has been altered, erased, or removed.

 unit has been misused, neglected, or damaged by accident.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL EXFO BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

Power Meter and VFL 29

Warranty

Liability

EXFO shall not be liable for damages resulting from the use of the product, nor shall be responsible for any failure in the performance of other items to which the product is connected or the operation of any system of which the product may be a part.

EXFO shall not be liable for damages resulting from improper usage or unauthorized modification of the product, its accompanying accessories and software.

30 Power Meter and VFL

Warranty

Exclusions

EXFO reserves the right to make changes in the design or construction of any of its products at any time without incurring obligation to make any changes whatsoever on units purchased. Accessories, including but not limited to fuses, pilot lamps, batteries and universal interfaces (EUI) used with EXFO products are not covered by this warranty.

This warranty excludes failure resulting from: improper use or installation, normal wear and tear, accident, abuse, neglect, fire, water, lightning or other acts of nature, causes external to the product or other factors beyond the control of EXFO.

IMPORTANT

In the case of products equipped with optical connectors, EXFO will charge a fee for replacing connectors that were damaged due to misuse or bad cleaning.

Certification

Exclusions

EXFO certifies that this equipment met its published specifications at the time of shipment from the factory.

Power Meter and VFL 31

Warranty

Service and Repairs

EXFO commits to providing product service and repair for five years following the date of purchase.

To send any equipment for service or repair:

1. Call one of EXFO’s authorized service centers (see EXFO Service

2. If equipment must be returned to EXFO or an authorized service

3. If possible, back up your data before sending the unit for repair.

4. Pack the equipment in its original shipping material. Be sure to include

5. Return the equipment, prepaid, to the address given to you by support

Centers Worldwide on page 33). Support personnel will determine if the equipment requires service, repair, or calibration.

center, support personnel will issue a Return Merchandise Authorization (RMA) number and provide an address for return.

a statement or report fully detailing the defect and the conditions under which it was observed.

personnel. Be sure to write the RMA number on the shipping slip. EXFO

will refuse and return any package that does not bear an RMA number.

Note: A test setup fee will apply to any returned unit that, after test, is found to

meet the applicable specifications.

After repair, the equipment will be returned with a repair report. If the equipment is not under warranty, you will be invoiced for the cost appearing on this report. EXFO will pay return-to-customer shipping costs for equipment under warranty. Shipping insurance is at your expense.

Routine recalibration is not included in any of the warranty plans. Since calibrations/verifications are not covered by the basic or extended warranties, you may elect to purchase FlexCare Calibration/Verification Packages for a definite period of time. Contact an authorized service center (see EXFO Service Centers Worldwide on page 33).

32 Power Meter and VFL

Warranty

EXFO Service Centers Worldwide

If your product requires servicing, contact your nearest authorized service center.

EXFO Headquarters Service Center

400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA

EXFO Europe Service Center

Winchester House, School Lane Chandlers Ford, Hampshire S053 4DG ENGLAND

EXFO Telecom Equipment (Shenzhen) Ltd.

3rd Floor, Building 10, Yu Sheng Industrial Park (Gu Shu Crossing), No. 467, National Highway 107, Xixiang, Bao An District, Shenzhen, China, 518126

1 866 683-0155 (USA and Canada) Tel.: 1 418 683-5498 Fax: 1 418 683-9224 support@exfo.com

Tel.: +44 2380 246800 Fax: +44 2380 246801 support.europe@exfo.com

Tel: +86 (755) 2955 3100 Fax: +86 (755) 2955 3101 support.asia@exfo.com

Power Meter and VFL 33

Index

after-sales service ........................................ 28

cancelling dark current effects ...................... 4

caution

of personal hazard................................... 1

of product hazard.................................... 1

circuit performance ....................................... 4

clearing power meter display ...................... 19

conventions, safety ....................................... 1

customer service.......................................... 32

dark current effects, eliminating ................... 4

electronic offsets, eliminating ....................... 4

equipment returns ...................................... 32

fiber

identifying faults ................................... 23

measuring optical power ....................... 10

help. see online user guide

identifying fiber faults................................. 23

offset nulling ................................................. 4

online user guide......................................... 25

optical detector performance ........................ 4

PDF. see online user guide performing

null measurement .................................... 4

optical power measurement ..................10

power meter

buttons description.................................. 3

clearing the display ................................ 19

creating a report .................................... 20

measurement......................................... 10

printing a report ....................................21

recalling results...................................... 18

reference values ....................................... 9

results .................................................... 16

saving results ......................................... 17

setting thresholds .................................... 5

thresholds ................................................ 5

recalling results, power meter .....................18

reference

mode ....................................................... 9

values, setting.......................................... 9

zero power............................................... 4

report

creating for power meter results............ 20

printing.................................................. 21

return merchandise authorization (RMA) .... 32

measurement, with power meter................ 10

Power Meter and VFL 35

Index

safety

caution .................................................... 1

conventions ............................................. 1

warning ................................................... 1

saving results, power meter ........................ 17

service and repairs....................................... 32

service centers............................................. 33

setting

power thresholds (power meter) ............. 5

reference values....................................... 9

shipping to EXFO ........................................ 32

symbols, safety.............................................. 1

technical support ........................................ 28

thresholds

power ...................................................... 5

setting, power meter ............................... 5

transportation requirements ....................... 28

user guide. see online user guide

VFL .............................................................. 23

warranty

certification ........................................... 31

exclusions .............................................. 31

general .................................................. 29

liability................................................... 30

null and void.......................................... 29

zero-power reference .................................... 4

36 Power Meter and VFL

NOTICE

抩⛙

CHINESE REGULATION ON RESTRICTION OF HAZARDOUS SUBSTANCES

₼⦌␂ℝ☀⹂䓸德棟Ⓟ䤓屓⸩

NAMES AND CONTENTS OF THE TOXIC OR HAZARDOUS SUBSTANCES OR ELEMENTS

CONTAINED IN THIS EXFO PRODUCT

▔⚺⦷㦻 EXFO ℶ❐₼䤓㦘㹡㦘⹂䓸德㒥⏒侯䤓⚜䱿✛⚺摞

Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ/T11363-2006

嫷䯉年㦘㹡㦘⹂䓸德⦷年捷ↅ㓏㦘⧖德㧟㠨₼䤓⚺摞⧖⦷ SJ/T11363-2006 㪖⑕屓⸩䤓棟摞尐㻑ⅴₚᇭ

Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ/T11363-2006

嫷䯉年㦘㹡㦘⹂䓸德咂⺠⦷年捷ↅ䤓㩟₏⧖德㧟㠨₼䤓⚺摞怔⒉ SJ/T11363-2006 㪖⑕ 屓⸩䤓棟摞尐㻑ᇭ

Part Name

捷ↅ⚜䱿

Toxic or hazardous Substances and Elements

㦘㹡㦘⹂䓸德✛⏒侯

Lead

杔

(Pb)

Mercury

㻭

(Hg)

Cadmium

椣

(Cd)

Hexavalent Chromium

⏼ↆ杻

(Cr VI)

Pol yb ro mi na te d

biphenyls

⮩䅃勣啾

(PBB)

Polybrominated

diphenyl ethers

⮩䅃ℛ啾搩

(PBDE)

Enclosure

⮥⮂

OO O O O O

Electronic and

electrical

sub-assembly

䟄⷟✛䟄⷟兓ↅ

XO X O X X

Optical

sub-assembly

⏘ⷵ兓ↅ

a. If applicable.

Ⱁ㨫抑䞷ᇭ

XO O O O O

Mechanical

sub-assembly

㧉㬿兓ↅ

OO O O O O

MARKING REQUIREMENTS

㪖㽷尐㻑

Product

ℶ❐

Environmental protection use period (years)

䘾⬒≬㔳∎䞷㦮棟 ( ㄃ )

Logo

㪖㉦

This Exfo product

㦻 EXFO ℶ❐

Battery

䟄㻯

a. If applicable.

Ⱁ㨫抑䞷ᇭ

P/N: 1064624

www.EXFO.com · info@exfo.com

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Tel.: 1 418 683-0211 · Fax: 1 418 683-2170

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

EXFO Inline Power Meter User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Conventions

Safety Information

Certification Information

Nulling Offsets

Setting Thresholds and Correction Factors

Setting Reference Values on Your Power Meter

Measuring Power or Insertion Loss

Saving Results Files

Opening Result Files

Clearing Measurements from the Display

Adding Information to Your Results

Generating Result Reports

Identifying Fiber Faults Visually with the VFL

Viewing Online Documentation

Installing a Unit You Have Purchased Separately

Recalibrating the Unit

Contacting the Technical Support Group

Transportation

4 Warranty

General Information

Liability

Exclusions

Certification

Service and Repairs

EXFO Service Centers Worldwide

Index