EXFO FPM-300 User Manual

FPM-300/FLS-300/FOT-300

Power Meter/Light Source/Optical

Loss Test Set

User Guide

Copyright © 2003–2011 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.

Patents

EXFO’s Universal Interface is protected by US patent 6,612,750.
Version number: 6.0.0

ii

Contents

Certification Information .................................................................................. v

1 Introducing the FPM-300/FLS-300/FOT-300 .............................. 1

Main Features ................................................................................................... 1

Power Sources .................................................................................................. 3

Typical Applications .......................................................................................... 3

Conventions ...................................................................................................... 3

2 Safety Information ................................................................... 4

Electrical Safety Information ............................................................................. 4

Laser Safety Information (FLS-300 and FOT-300) .............................................. 4

3 Getting Started ......................................................................... 6

Turning the Unit On and Off ............................................................................. 6

Activating Automatic Shutdown (Auto-Off) ...................................................... 7

Installing the EXFO Universal Interface (EUI) ..................................................... 7

Cleaning and Connecting Optical Fibers ........................................................... 8

4 Measuring Power or Loss (FPM-300 and FOT-300) .................. 9

Nulling Electrical Offsets ................................................................................... 9

Defining a List of Favorite Wavelengths ......................................................... 10

Referencing Your Power Meter to a Source ..................................................... 11

Measuring Power or Loss ................................................................................ 13

Automatically Detecting Wavelength .............................................................. 15

5 Using a Light Source (FLS-300 and FOT-300) .......................... 16

Activating/Deactivating a Light Source ........................................................... 16

Modulating the Source Signal ........................................................................ 16

Sending Source Power Value with Signal ........................................................ 17

6 Maintenance ............................................................................ 19

Cleaning EUI Connectors ................................................................................ 20

Cleaning Fixed Connectors .............................................................................. 22

Cleaning Detector Ports .................................................................................. 24

Replacing Batteries ......................................................................................... 24

Recalibrating the Unit ..................................................................................... 25

Recycling and Disposal (Applies to European Union Only) .............................. 25

7 Troubleshooting ...................................................................... 26

Solving Common Problems ............................................................................. 26

Error Codes and Descriptions .......................................................................... 26

Contacting the Technical Support Group ........................................................ 27

Transportation ................................................................................................ 27

8 Warranty .................................................................................. 28

General Information ....................................................................................... 28

Liability ........................................................................................................... 28

Exclusions ....................................................................................................... 29

Certification .................................................................................................... 29

Service and Repairs ......................................................................................... 30

EXFO Service Centers Worldwide .................................................................... 31

A Technical Specifications .......................................................... 32

FPM-300/FLS-300/FOT-300 iii

Certification Information

Federal Communications Commission (FCC) and Industry
Canada Information

Electronic test and measurement equipment is exempt from FCC part 15, subpart B
compliance in the United States of America and from ICES-003 compliance in
Canada. However, EXFO Inc. makes reasonable efforts to ensure compliance to the
applicable standards.

The limits set by these standards are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the user guide, may cause
harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.

Modifications not expressly approved by the manufacturer could void the user's
authority to operate the equipment.

 Information

Electronic test equipment is subject to the EMC Directive in the European Union.
The IEC 61326-1 standard prescribes both emission and immunity requirements for
laboratory, measurement, and control equipment. This unit has undergone
extensive testing according to the European Union Directive and Standards.

iv

Page 1 of 1

DECLARATION OF CONFORMITY

Application of Council Directive(s): 2006/95/EC – The Low Voltage Directive

2004/108/EC – The EMC Directive

93/68/EEC – CE Marking

And their amendments

Manufacturer’s Name and Address:

EXFO Inc. EXFO Europe

400 Godin Avenue Omega Enterprise Park, Electron Way
Quebec City, Quebec Chandlers Ford, Hampshire
G1M 2K2 CANADA SO53 4SE ENGLAND
Tel.: [phone] Tel.: [phone]

Equipment Type/Environment: Test & Measurement / Industrial
Trade Name/Model No.: Light Source / FLS-300, Optical Loss Test Set / FOT-300, Power Meter / FPM-300

Standard(s) to which Conformity is declared:

EN 61010-1:2001 Edition 2.0

Safety requirements for electrical equipment for measurement,
control, and

laboratory use – Part 1: General requirements

EN 61326-1:2006

Electrical equipment for measurement, control and laboratory use –
EMC requirements

– Part 1: General requirements

EN 60825-1:2007 Edition 2.0

Safety of laser products – Part 1: Equipment classification and
requirements

I, the undersigned, hereby declare that the equipment specified above conforms to the above Directive and Standards.

Manufacturer:

Stephen Bull, E. Eng
Vice-President Research and Development

400 Godin Avenue,
Quebec City, Quebec
G1M 2K2 CANADA
February 03, 2009

FPM-300/FLS-300/FOT-300 v

Introducing the FPM-300/FLS-300/FOT-300 1

1 Introducing the

FPM-300/FLS-300/FOT-300

This user guide covers the following products (unless otherwise specified,
descriptions apply to all):

 FPM-300 Power Meter

 FLS-300 Light Source

 FOT-300 Optical Loss Test Set: combines both a power meter and a light source

Main Features

FPM FLS FOT

Ge or GeX detector with 10 calibrated wavelengths X X

Absolute power and link loss measurements X X

Editable list of favorite power meter wavelengths X X

Editable list of favorite source wavelengths X

Automatic wavelength detection X X

No offset nulling of detectors required in normal operation X X

Multiple source configurations on a single port [FOT-300] or
on one or two ports [FLS-300]

Transmission of editable power value with source’s signal for
automatic reference with compatible power meter

Transmission of wavelength to compatible power meter in
automatic wavelength or auto-switching mode

Modulated signal emission or detection (270 Hz, 1 kHz and
2 kHz) compatible with other EXFO units

Automatic shutdown after 10 minutes of idle time (auto-off) X X X

XX

XX

XX

XXX

LCD display

DC connector

Keypad
(FOT-300 shown)

Stand

Shoulder

strap eyelet

Power meter

detector port

Light source

ports

FOT-300 FLS-300FPM-300

Safety label and

serial number

(under the stand)

Battery compartment

(3 alkaline batteries)

Quick reference
label

FPM-300/FLS-300/FOT-300 2

Introducing the FPM-300/FLS-300/FOT-300 3

Power Sources

The units operate with the following power sources:

 AC adapter (connected to standard power outlet—indoor use only)

Compatible car outlet adapter available upon request.

 AA alkaline batteries (automatically take over if you unplug the AC adapter)

IMPORTANT

If the battery level becomes too low, the unit turns itself off.

Typical Applications

 Transmitter power measurements (dBm and W)

 Fiber-link loss testing (dB)

 Component insertion-loss testing (dB)

 Fiber identification with 270-Hz, 1-kHz and 2-kHz signals

 Fiber installation and maintenance applications

 FTTx: testing of passive optical networks (PONs)

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.

2 Safety Information

Q

S

T

5

1

9

A

150 mA

6 -16 V DC

IMPORTANT

When you see the following symbol on your unit , make sure
that you refer to the instructions provided in your user
documentation. Ensure that you understand and meet the required
conditions before using your product.

Electrical Safety Information

WARNING

Use the AC adapter provided with this product
indoors only.

WARNING

Do not use the unit outdoors in wet locations.

Laser Safety Information (FLS-300 and FOT-300)

WARNING

Use of controls, adjustments and procedures for operation and
maintenance other than those specified herein may result in
hazardous radiation exposure.

WARNING

Do not install or terminate fibers while a laser source is active. Never
look directly into a live fiber and ensure that your eyes are protected
at all times.

Your instrument is a Class 1 laser product in compliance with standards IEC 60825-1
and 21 CFR 1040.10. Laser radiation may be encountered at the output port.

The following label indicates that a product contains a Class 1 source:

FPM-300/FLS-300/FOT-300 4

Safety Information 5

Equipment Ratings

Te mp er at u re

 Operation

 Storage

Relative humidity 0 % to 95 % non-condensing

Maximum operation
altitude

Pollution degree 2 (unit used inside; connected to AC mains or powered

Overvoltage category II

Powersupply rating 100 V to 240 V (50 Hz/60 Hz)

a. Use the external power supply indoors only.
b. Equipment should be normally protected against exposure to direct sunlight, precipitations and

full wind pressure.

-10 °C to 50 °C (14 °F to 122 °F)

-40 °C to 70 °C (-40 °F to 158 °F)

2000 m (6562 ft)

by batteries)

a

3 (unit used outside; powered by batteries)

Maximum input current 0.12 A

b

3 Getting Started

AC adapter

plugged in

Auto-off activated

Batteries in use

(with level)

Measured power/loss (FPM/FOT)
Active source wavelength (FLS)

Source wavelength (FOT)

Power meter wavelength or
reference power (FPM/FOT)

Left port’s source

modulation

(FLS/FOT)

Right port’s source modulation (FLS)
Detected modulation (FPM/FOT)

Display

Tur n s u n i t o n / o f f

Controls auto-off

Exits special modes

PRESS: Selects

wavelength

from FAV list

HOLD: Accesses

FAV mode

Switches between

measurement units

PRESS: Displays dB units
HOLD: Sets input power as

reference power

PRESS: Switches between
modulation values

HOLD: Accesses P_REF mode

PRESS: Activates next source

HOLD: Deactivates current source

FLS-300
FOT-300

FPM-300
FOT-300

Keypad

Turning the Unit On and Off

When you turn off the FPM-300 or the FOT-300, it saves the current wavelength, unit
and reference power.

IMPORTANT

If you remove batteries (and the AC adapter is unplugged), the unit
will turn off without saving the above values.

If batteries are low (and the AC adapter is unplugged), the unit will
save the above values and turn off.

Note: Offset nulling values are always returned to factory settings.

To turn on the unit:

Press . The unit displays EXFO Inc. for a few seconds. You may use it
immediately under normal conditions.

To turn off the unit:

From normal operating mode (that is, not FAV or PREF), hold down a few
seconds.

FPM-300/FLS-300/FOT-300 6

Getting Started 7

Bare metal

(or blue border)

indicates UPC option

Green border
indicates APC

option

2 3 4

Activating Automatic Shutdown (Auto-Off)

When auto-off is activated, the unit will turn off after
10 minutes of idle time.

Auto-off is activated by default when you turn on the
unit.

To deactivate/reactivate auto-off:

When unit is on, press .

Installing the EXFO Universal Interface (EUI)

The EUI fixed baseplate is available for connectors with angled (APC) or non-angled
(UPC) polishing. A green border around the baseplate indicates that it is for
APC-type connectors.

To install an EUI connector adapter onto the EUI baseplate:

1. Hold the EUI connector adapter so the dust cap opens downwards.

2. Close the dust cap in order to hold the connector adapter more firmly.

3. Insert the connector adapter into the baseplate.

4. While pushing firmly, turn the connector adapter clockwise on the baseplate to

lock it in place.

Cleaning and Connecting Optical Fibers

IMPORTANT

To ensure maximum power and to avoid erroneous readings:

 Always clean fiber ends as explained below before inserting

them into the port. EXFO is not responsible for damage or
errors caused by bad fiber cleaning or handling.

 Ensure that your patchcord has appropriate connectors. Joining

mismatched connectors will damage the ferrules.

To connect the fiber-optic cable to the port:

1. Inspect the fiber using a fiber inspection microscope. If the fiber is clean,

proceed to connecting it to the port. If the fiber is dirty, clean it as explained
below.

2. Clean the fiber ends as follows:

2a. Gently wipe the fiber end with a lint-free swab dipped in isopropyl alcohol.

2b. Use compressed air to dry completely.

2c. Visually inspect the fiber end to ensure its cleanliness.

3. Carefully align the connector and port to prevent the fiber end from touching the

outside of the port or rubbing against other surfaces.

If your connector features a key, ensure that it is fully fitted into the port’s
corresponding notch.

4. Push the connector in so that the fiber-optic cable is firmly in place, thus
ensuring adequate contact.

If your connector features a screwsleeve, tighten the connector enough to firmly
maintain the fiber in place. Do not overtighten, as this will damage the fiber and
the port.

Note: If your fiber-optic cable is not properly aligned and/or connected, you

will notice heavy loss and reflection.

FPM-300/FLS-300/FOT-300 8

Measuring Power or Loss (FPM-300 and FOT-300) 9

dBm/W

dB



4 Measuring Power or Loss

(FPM-300 and FOT-300)

Nulling Electrical Offsets

Temperature and humidity variations affect the performance of electronic circuits
and optical detectors. Nulling the electrical offsets eliminates these effects. You r un i t
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

If light reaches the detector when nulling offsets, LIGH appears on
the display and the nulling is not performed. You will need to press a
key to return to the previous display.

Note: Factory-defined values will be reinstated when you turn off the unit.

To perform an offset nulling:

Hold down and
The unit displays NULL while nulling the offsets, then
returns to normal mode.

Note: Keypad is disabled during the operation.

(power meter)

a few seconds.

Defining a List of Favorite Wavelengths





dBm/W

dB

You must put the wavelengths you want to use on a list of favorite wavelengths (the
FAV list). Only wavelengths on this list are available for measurements.

At the factory (or after recalibration), the list contains 10 calibrated wavelengths.

Note: The list must always contain at least one wavelength.

To add wavelengths to the FAV list (or to remove them):

1. Hold down

(power meter)

a few seconds. The unit
enters the FAV list and displays the current
wavelength.

2. Press
wavelengths. An asterisk (*) appears beside

(power meter)

to switch between available

wavelengths already on the list.

3. Press to include/exclude the displayed wavelength.

4. Repeat steps 2 to 3 for other wavelengths as necessary.

5. Press to return to normal mode. If your list is empty, the unit beeps and you

cannot exit the FAV list.

FPM-300/FLS-300/FOT-300 10

Measuring Power or Loss (FPM-300 and FOT-300) 11

Referencing Your Power Meter to a Source

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

Note: You must set a reference value separately for each wavelength.

Compatible sources (such as FOT-300 and FLS-300) can transmit a power value to
your power meter, avoiding the need for manual referencing.

IMPORTANT

The value sent is not the source’s actual power. It is a user-defined
value that may not take the optical link’s loss into account.

To receive the reference power value from a compatible source:

1. Connect a compatible source to your power meter

(as shown below, with or without a fiber under
test).

2. Use the source to emit the signal that contains its
power value (see To change the signal modulation:
on page 16).

 If reference value or units change, the power

meter beeps and displays REF while detecting the special signal.

 The new reference power is displayed in the top right corner (in dBm) and

current loss reading is automatically switched to dB.

Note: When using this feature, you cannot change the power meter’s

wavelength, units or reference power manually. The power meter
behavior is totally determined by the source.

To reference the power meter to a source manually:

Light
source

Power

meter

AdapterReference

test jumper

Reference

test jumper

Bulkhead

connector

REF





1. Using the proper adapter, connect a light source (such as FLS-300 or FOT-300)
to the detector port of your power meter.

2. Activate the source at the desired wavelength.

3. Match the source and power meter wavelengths:

 If the source emits an auto-wavelength signal

(see Automatically Detecting Wavelength on
page 15), the power meter automatically
matches the source wavelength.

4. Hold down for a few seconds. The power
meter stores the currently detected power as the
new reference power.

Reference power is displayed in the top right
corner (in dBm) and current loss reading is
automatically switched to dB.

5. Repeat the procedure for each wavelength you
want to reference.

Note: When using dB units, press

(power meter)

to display the current

wavelength for a few seconds. To change this wavelength, press
again while it is displayed.

Note: Once all desired wavelengths have been referenced, do not disconnect

the Reference Test Jumper from the source port.

FPM-300/FLS-300/FOT-300 12

Measuring Power or Loss (FPM-300 and FOT-300) 13

Fiber under test

Te st

jumper

Te st

jumper

Light
source

Power

meter

Adapter

Bulkhead

connector

Bulkhead

connector

Measuring Power or Loss

Measuring absolute power or link loss is done the same way, except for the
referencing step.

To perform power or loss measurements:

1. If necessary, perform an offset nulling (see Nulling Electrical Offsets on page 9).

2. Check and clean your fibers appropriately for optimum performance

(see Cleaning and Connecting Optical Fibers on page 8).

3. For loss measurements, reference your power meter to a light source
(see Referencing Your Power Meter to a Source on page 11), then deactivate the
light source.

4. Using the proper adapter and test jumpers, connect a fiber under test to a light
source (such as FLS-300 or FOT-300) and to the detector port of your unit.

Note: If you have referenced your power meter to a source, simply connect a

fiber under test to the test jumpers used for referencing.

5. Activate the source at the desired wavelength.

6. Match the source and power meter wavelengths:



REF

When power or loss is outside power limits

(see Technical Specifications on page 32)

Actual power or loss

of fiber under test

Modulation detected

dBm/W

dB

 If the source emits an auto-wavelength signal

(see Automatically Detecting Wavelength on
page 15), the power meter automatically
matches the source wavelength.

If the source emits an auto-wavelength signal or
is in auto-switching mode (see Automatically Detecting Wavelength on
page 15 and see To receive the auto-wavelength signal or detect the source's
auto-switching mode: on page 15), the power meter automatically matches
the source wavelength.OR

 Press

Defining a List of Favorite Wavelengths on page 10).

(power meter)

to switch between pre-selected wavelengths (see

7. If you want to see a loss value and your power meter displays W or dBm units,
press to access reference mode.

When the unit detects a modulated signal, it beeps and displays the modulation
value and average measured power or loss (see left illustration above). You may
notice a slightly unstable last digit.

8. If necessary, change the displayed units by pressing .

9. Repeat the procedure for other wavelengths.

FPM-300/FLS-300/FOT-300 14

Measuring Power or Loss (FPM-300 and FOT-300) 15

Automatically Detecting Wavelength

Compatible sources (such as FOT-300 and FLS-300) can transmit their wavelength
value through the fiber, avoiding the need to manually match the source and power
meter wavelengths.

Note: When you receive an auto-wavelength signal or when the source is in

auto-switching mode, you cannot manually change the power meter
wavelength. The power meter behavior is totally determined by the
source.

To receive the auto-wavelength signal or detect the source's
auto-switching mode:

1. Connect a compatible source to your power meter.

2. Activate the source in Auto mode (FOT-300 and

FLS-300: see Modulating the Source Signal on
page 16) or in auto-switching mode.

Your power meter automatically matches the source
wavelength. If the wavelengths differ, it also beeps
and returns you to normal operating mode.

5 Using a Light Source

FOT-300 FLS-300

Moving bars indicate
active source port

Source wavelength and
modulation (when source active)



CW

(FLS-300 and FOT-300)

The FLS-300 may contain up to three sources (one-port models) or up to four
sources (two-port models). The FOT-300 may contain up to three sources.

Activating/Deactivating a Light Source

Only one source may be active at a time. When no source is active, the unit displays

NONE (FLS-300) or leaves the top left corner empty (FOT-300).

To activate a light source and change the wavelength:

Press
wavelength and modulation.

To deactivate the light source:

 Press

OR

 Hold down

to activate each available source in turn. The unit displays the

(source)

until you get past the last source.

(source)

a few seconds.

(source)

Modulating the Source Signal

When you activate the first source, the signal is always CW (unmodulated). When
you switch sources, the modulation remains the same. Modulation is indicated in
the top left (port #1) or top right (port #2) corner.

Available modulation values are: CW, Auto, 270 Hz, 1 kHz and 2 kHz.

Note: Auto is a modulated signal detected by compatible units (see

Automatically Detecting Wavelength on page 15). It provides longer
battery life than CW, but covers a reduced power range.

To change the signal modulation:

1. Activate the source.

2. Press to switch between available modulations.

FPM-300/FLS-300/FOT-300 16

Using a Light Source (FLS-300 and FOT-300) 17

Sending Source Power Value with Signal

Your source can transmit a user-defined power value to compatible power meters
(such as FOT-300 and FPM-300) through the fiber. If the reference source is far from
the power meter, you can connect your source to the power meter to send the
reference value. With this feature you can also correct for power variations.

Note: If you connect a fiber between FOT-300’s source and detector ports, the

unit can use the actual source output power as reference power.

Note: For details about how compatible power meters receive this power

value, see Referencing Your Power Meter to a Source on page 11.

IMPORTANT

The value sent is not (and will not affect) the source’s actual power.
It is a user-defined value that may not take the optical link’s loss into
account.

 If the source emits an auto-wavelength signal (see Automatically Detecting

Wav el en gt h on page 15), the power meter automatically matches the

source wavelength.

To send the source power value:

CW

CW

CW





CWCWCW



1. Activate the source.

2. Hold down a few seconds. The unit switches to
PREF mode and displays the wavelength and

transmittable power. The left/right modulation
indicator identifies the current source port.

3. If necessary, edit the value to send.

3a. Press . The first digit of the power value blinks.

3b. Revert to the factory-default power value by holding down and

a few seconds.

(source)

OR

Select a digit to change by pressing
its value by pressing (it returns to 0 after 9). After the last digit, all digits

until it blinks, then increase

(source)

blink. You may add/remove the “–” sign by pressing .

OR

[FOT-300 only] Hold down to use the actual source output power.
Ensure a fiber is connected between the source and power meter.

3c. Press to save the modified value (the value remains in memory even

when you turn the unit off).

4. Pres s

to send the power value with an auto-wavelength signal.

(source)

OR

Press to return to normal mode without sending a power value.

Note: If you are using a single FOT-300 with its source connected to its power

meter, the power meter simply beeps when receiving the value, then
returns to its previous display.

FPM-300/FLS-300/FOT-300 18

Maintenance 19

6 Maintenance

This product contains no user-serviceable parts. However, it contains sensitive
electronic and optical components, and should be handled carefully and stored in
its carrying case when not in use.

To help ensure long, trouble-free operation:

 Always inspect fiber-optic connectors before using them and clean them if

necessary.

 Keep the unit free of dust.

 Clean the unit casing and front panel with a cloth slightly dampened with water.

 Store unit at room temperature in a clean and dr y area. Keep the unit out of

direct sunlight.

 Avoid high humidity or significant temperature fluctuations.

 Avoid unnecessary shocks and vibrations.

 If any liquids are spilled on or into the unit, turn off the power immediately,

disconnect from any external power source, remove the batteries and let the
unit dry completely.

WARNING

Use of controls, adjustments, and procedures for operation and
maintenance other than those specified herein may result in
hazardous radiation exposure.

Cleaning EUI Connectors

Push

Tur n

Pull

3

4

5

Regular cleaning of EUI connectors will help maintain optimum performance. There
is no need to disassemble the unit.

IMPORTANT

If any damage occurs to internal connectors, the module casing will
have to be opened and a new calibration will be required.

To clean EUI connectors:

1. Remove the EUI from the instrument to expose the connector baseplate and

ferrule.

2. Moisten a 2.5 mm cleaning tip with one drop of isopropyl alcohol (alcohol may
leave traces if used abundantly).

3. Slowly insert the cleaning tip into the EUI adapter until it comes out on the other
side (a slow clockwise rotating movement may help).

4. Gently turn the cleaning tip one full turn, then continue to turn as you withdraw
it.

FPM-300/FLS-300/FOT-300 20

Maintenance 21

5. Repeat steps 3 to 4 with a dry cleaning tip.

Note: Make sure you don’t touch the soft end of the cleaning tip.

6. Clean the ferrule in the connector port as follows:

6a. Deposit one drop of isopropyl alcohol on a lint-free wiping cloth.

IMPORTANT

Since isopropyl alcohol is not absolutely pure, it may leave residues
if used abundantly or left to evaporate (about 10 seconds).

Avoid contact between the tip of the bottle and the wiping cloth,
dry the surface quickly, and use a bottle that distributes only a drop
of alcohol at a time.

6b. Gently wipe the connector and ferrule.

6c. With a dry lint-free wiping cloth, gently wipe the same surfaces to ensure

that the connector and ferrule are perfectly dry.

6d. Verify connector surface with a portable fiber-optic microscope (for

example, EXFO’s FOMS) or fiber inspection probe (for example, EXFO’s
FIP).

WARNING

Verifying the surface of the connector WHILE THE UNIT IS ACTIVE
WILL result in permanent eye damage.

7. Put the EUI back onto the instrument (push and turn clockwise).

8. Throw out cleaning tips and wiping cloths after one use.

Cleaning Fixed Connectors

Regular cleaning of connectors will help maintain optimum performance. Do not try
to disassemble the unit. Doing so would break the connector.

To clean fixed connectors:

1. Fold a lint-free wiping cloth in four to form a square.

2. Moisten the center of the lint-free wiping cloth with only one drop of isopropyl

alcohol.

IMPORTANT

Alcohol may leave traces if used abundantly. Avoid contact between
the tip of the bottle and the wiping cloth, and do not use bottles
that distribute too much alcohol at a time.

3. Gently wipe the connector threads three times with the folded and moistened
section of the wiping cloth.

IMPORTANT

Isopropyl alcohol takes approximately ten seconds to evaporate.
Since isopropyl alcohol is not absolutely pure, evaporation will leave
microscopic residue. Make sure you dry the surfaces before
evaporation occurs.

4. With a dry lint-free wiping cloth, gently wipe the same surfaces three times with
a rotating movement.

5. Throw out the wiping cloths after one use.

FPM-300/FLS-300/FOT-300 22

Maintenance 23

7

8

9

6. Moisten a cleaning tip (2.5 mm tip) with only one drop of isopropyl alcohol.

IMPORTANT

Alcohol may leave traces if used abundantly. Avoid contact between
the tip of the bottle and the cleaning tip, and do not use bottles that
distribute too much alcohol at a time.

7. Slowly insert the cleaning tip into the connector until it reaches the ferrule
inside (a slow clockwise rotating movement may help).

8. Gently turn the cleaning tip one full turn.

9. Continue to turn as you withdraw the cleaning tip.

10. Repeat steps 7 to 9, but this time with a dr y cleaning tip (2.5 mm tip provided by

EXFO).

Note: Make sure you don’t touch the soft end of the cleaning tip and verify the

cleanliness of the cotton tip.

11. Throw out the cleaning tips after one use.

Cleaning Detector Ports

+

+

+

Regular cleaning of detectors will help maintain measurement accuracy.

IMPORTANT

Always cover detectors with protective caps when unit is not in use.

To clean detector ports:

1. Remove the protective cap and adapter (FOA) from the detector.

2. If the detector is dusty, blow dry with compressed air.

3. Being careful not to touch the soft end of the swab, moisten a cleaning tip with

only one drop of isopropyl alcohol.

IMPORTANT

Alcohol may leave traces if used abundantly. Do not use bottles that
distribute too much alcohol at a time.

4. While applying light pressure (to avoid breaking the detector window), gently
rotate the cleaning tip on the detector window.

5. Repeat step 4 with a dr y cleaning tip or blow dr y with compressed air.

6. Discard the cleaning tips after one use.

Replacing Batteries

Your unit requires three AA alkaline batteries.

Note: The AC adapter (provided with the unit) is

not a charger.

To replace batteries:

1. Turn off the unit (if the AC adapter is plugged in, you

may replace batteries while unit is on).

2. Open the battery compartment door located at the
back of the unit.

3. Replace batteries, respecting the polarity as shown.

4. Close the battery compartment door.

WARNING

Do not throw batteries into fire or water and do not short-circuit
the batteries’ electrical contacts. Do not disassemble.

FPM-300/FLS-300/FOT-300 24

Maintenance 25





Recalibrating the Unit

Manufacturing and service center calibrations are based on the ISO/IEC 17025
Standard, which states that calibration documents must not contain a
recommended calibration interval, unless this has been previously agreed upon
with the customer.

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. You should determine the
adequate calibration interval for your unit according to your accuracy requirements.

Under normal use, EXFO recommends calibrating your unit every three years.

Note: The FlexCare warranty program includes Calibration/Verification

packages (see Service and Repairs on page 30).

To view the last calibration date (FOT-300 and FPM-300 only):

1. Hold down

same time. The unit displays the main embedded
software version.

2. Pres s
of the power meter.

3. Press to return to normal mode.

(power meter)

(power meter)

and press at the

to display the calibration date

Recycling and Disposal (Applies to European Union Only)

For complete recycling/disposal information as per European Directive WEEE
2002/96/EC, visit the EXFO Web site at www.exfo.com/recycle.

7 Troubleshooting

Solving Common Problems

Problem Possible Cause Solution

Unable to change power meter
wavelength.

 Unit receiving Auto

(or REF) signal from
source.

Change source mode
(see Modulating the
Source Signal on
page 16), then retry.

Add wavelengths.

Wait a few seconds
until power value is
received, then retry.

Increase source power
or switch source to
CW.

Change source output
power.

Unable to change power meter
dB unit or reference power.

OR

Changed unit or reference
value are replaced by other
values after a while.

Many beeps, unstable optical
power and blinking Auto (or
modulation) indicator.

Reference power different than
source output power.

 Only one wavelength

in list.

Unit receiving REF signal
from source. See Press

to switch between
available modulations.

on page 16.

Power too low to
recognize Auto mode
(or modulation).

Received power outside
detector’s range.

Error Codes and Descriptions

 ER: error code displayed until you press a key.

 WR: warning code displayed for 3 seconds, then unit returns to normal.

Error
Code

LIGH Light detected while nulling offsets.

Nulling is not performed.

10/11/22 Embedded software problem. Contact EXFO.

13 EEPROM corrupted (would occur

during unit initialization).

20 Wavelength sent from compatible

source emitting in Auto mode is not
available on your power meter.

28 Unstable optical power detected. Increase source power in Auto

Description Solution

Correctly place protective cap on
detector port, then retry.

Unit must be recalibrated. Contact
EXFO.

Change source wavelength or
switch source to CW.

mode, or switch source to CW.

FPM-300/FLS-300/FOT-300 26

Troubleshooting 27





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).

For detailed information about technical support, visit the EXFO Web site at

www.exfo.com.

Technical Support Group

400 Godin Avenue
Quebec (Quebec) G1M 2K2
CANADA

To accelerate the process, please have information such as the name and the serial
number (see the product identification label), as well as a description of your
problem, close at hand.

You may also be requested to provide the embedded software’s version numbers.

To display the embedded software version:

1. Hold down

at the same time. The unit displays the main
software version.

2. [FLS-300 and FOT-300] Press
between the main and the source’s software
versions.

Press to return to normal mode.

(power meter or source)

(source)

1 866 683-0155 (USA and Canada)
Tel.: [phone]
Fax: [phone]
[e-mail]

and press

to switch

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.

8 Warranty

General Information

EXFO Inc. (EXFO) warrants this equipment against defects in material and
workmanship for a period of three years 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 should the equipment need to be repaired. 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.

IMPORTANT

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.

 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.

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.

FPM-300/FLS-300/FOT-300 28

Warranty 29

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

EXFO will charge a fee for replacing optical connectors that were
damaged due to misuse or bad cleaning.

Certification

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

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 Centers

Worldwid e on page 31). Support personnel will determine if the equipment
requires service, repair, or calibration.

2. If equipment must be returned to EXFO or an authorized service center, support
personnel will issue a Return Merchandise Authorization (RMA) number and
provide an address for return.

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 a

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

5. Return the equipment, prepaid, to the address given to you by support
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
Worldwid e on page 31).

FPM-300/FLS-300/FOT-300 30

Warranty 31

EXFO Service Centers Worldwide

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

EXFO Headquarters Service
Center

400 Godin Avenue
Vanier (Quebec) G1M 2K2
CANADA

EXFO Europe Service Center

Omega Enterprise Park, Electron
Wa y
Chandlers Ford,
Hampshire S053 4SE
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.: [phone]
Fax: [phone]
[e-mail]

Tel.: [phone]
Fax: [phone]
[e-mail]

Tel: [phone]
Fax: [phone]
[e-mail]

A Technical Specifications

SPECIFICATIONSa

Model

b

FPM-302 FPM-302X

Power meter port Ge GeX

Power range

c

(dBm) 10 to –60 26 to –50
Range displayed (dBm) Down to –65 Down to –50
Number of calibrated wavelengths

d

10 10

Power uncertainty

e

± 5 % ± 1 nW ± 5 % ± 10 nW

Resolution (dB) 0.01

f

0.01g

Automatic offset nulling

h

Yes Yes

Warmup time

i

(s) 0 0
Display units dB/dBm/W dB/dBm/W
Automatic wavelength recognition

j

Yes Yes
Screen refresh rate (Hz) 3 3
Tone detection (Hz) 270, 1 k, 2 k 270, 1 k, 2 k
Battery life (hours) (typical) > 300 > 300
Warranty and recommended 3 3
calibration interval (years)

NOTES

a. Guaranteed unless otherwise specified.
b. All specifications valid at 1550 nm and 23 °C ± 1 °C,

with an FC connector.
c. In CW mode; sensitivity defined as 6 x rms noise level.
d. Wavelengths: 830 nm, 850 nm, 980 nm, 1300 nm, 1310 nm, 1450

nm, 1490 nm, 1550 nm, 1590 nm and 1625 nm.
e. Traceable to NIST; FPM-302X: up to 20 dBm.
f. From 10 dBm to –50 dBm.
g. From 26 dBm to –35 dBm.
h. Power of > –40 dBm for FPM-302, and of > –25 dBm

for FPM-302X.
i. For ± 0.05 dB and temperatures of > 18 °C.
j. At 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm

and 1625 nm; power of > –50 dBm for FPM-302,

and of > –40 dBm (typical) for FPM-302X.

GENERAL SPECIFICATIONS

Size (H x W x D) 18.5 cm x 10.0 cm x 5.5 cm (71/4 in x 4 in x 21/8 in)
Weight 0.4 kg (0.9 lb)
Temperature operating –10 °C to 50 °C (14 °F to 122 °F)
storage –40 °C to 70 °C (–40 °F to 158 °F)
Relative humidity 0 % to 95 % non-condensing

SPECIFICATIONSa

Modelb 23BL 234BL 235BL 12D 01-VCL

Central wavelength (nm) 1310 ± 20 1310 ± 20 1310 ± 20 850 ± 25 850 +10/

—

20
1550 ± 20 1550 ± 20 1490 ± 10 1300 +50/–10
1625 ± 15 1550 ± 20
Spectral width

c

(nm)

)

5

)

5

)

5 50/135 )1

Output power (dBm)

*1/*

1

*1/*

–3/*–5 *1/*–4.5/*–3 *–20/*–20 (62.5/125 μm) *–3 (50/125 μm)

Power stability

d

(dB)
8 hours ±0.10 ±0.10 ±0.10 ±0.10 ±0.25
Battery life

e

(hours) 120 100 120 120 250
Enables automatic wavelength recognition Yes Yes Yes Yes Yes
Tone generation (Hz) 270, 1 k, 2 k 270, 1 k, 2 k 270, 1 k, 2 k 270, 1 k, 2 k 270, 1 k, 2 k
Warranty and recommended calibration interval (years) 3 3 3 3 3

GENERAL SPECIFICATIONS

Size (H x W x D) 18.5 cm x 10.0 cm x 5.5 cm (71/4 in x 4 in x 21/8 in)
Weight 0.4 kg (0.9 lb)
Temperature operating –10 °C to 50 °C (14 °F to 122 °F)
storage

—

40 °C to 70 °C (–40 °F to 158 °F)

Relative humidity 0 % to 95 % non-condensing

NOTES

a. Guaranteed unless otherwise specified.
b. All specifications valid at 23 °C ± 1 °C, with an FC connector.
c. rms for lasers and —3 dB width for LEDs; typical values for LEDs.

d. After 15 minutes warmup; expressed as ± half the difference between the maximum and

minimum values measured during the period, with an APC connector on the power meter.
e. Typical autonomy in Auto mode.
f. EA-EUI only available on models 23BL and 235BL.

IMPORTANT

The following technical specifications can change without notice.
The information presented in this section is provided as a reference
only. To obtain this product’s most recent technical specifications,
visit the EXFO Web site at www.exfo.com.

FPM-300/FLS-300/FOT-300 32

Technical Specifications 33

Model FOT-302 FOT-302X
Power meter port

b

Ge GeX

Power range (dBm)

c

10 to —60 26 to —50
Range displayed (dBm) Down to —65 Down to —50
Number of calibrated wavelengths

d

10 10

Power uncertainty

e

± 5 % ± 1 nW ± 5 % ± 10 nW

Resolution (dB) 0.01

f

0.01g

Automatic offset nulling

h

Yes Yes

Warmup time (s)

h, i

0 0
Display units dB/dBm/W dB/dBm/W
Automatic wavelength recognition

j

Yes Yes
Screen refresh rate (Hz) 3 3
Tone detection (Hz) 270, 1 k, 2 k 270, 1 k, 2 k
Battery life (hours) (typical) 260 260
Warranty and recommended calibration interval (years) 3 3

Model

k

23BL 12D 235BL

Central wavelength (nm) 1310 ± 20 850 ± 25/ 1310 ± 20
1550 ± 20 1300 + 50/—10 1490 ± 10
1550 ± 20
Spectral width (nm)

l

) 5 50/135 ) 5

Output power (dBm) * 1/* 1

* —20/* —20 (62.5/125 +m) * 1/* —4.5/*—3
Power stability (dB) m
8 hours ± 0.1 ± 0.1 ± 0.1
Battery life (hours)

n

120 120 120
Automatic wavelength recognition Yes Yes Yes
Tone generation (Hz) 270, 1 k, 2 k 270, 1 k, 2 k 270, 1 k, 2 k
Warranty and recommended calibration interval (years) 3 3 3

SPECIFICATIONS

a

GENERAL SPECIFICATIONS

Size (H x W x D) 185 mm x 100 mm x 55 mm (71/4 in x 4 in x 21/8 in)
Weight 0.4 kg (0.9 lb)
Temperature operating —10 °C to 50 °C (14 °F to 122 °F)
storage —40 °C to 70 °C (—40 °F to 158 °F)
Relative humidity 0 % to 95 % non-condensing

STANDARD ACCESSORIES

User guide, Certificate of Calibration, instrument stickers in six languages,
AC adapter, EUI-XX, connector adapter (FOA-XX), three AA batteries, wrist
strap, alcohol cleaning pads.

SAFETY

21 CFR 1040.10 and IEC 60825-1:1993+A1:1997+A2:2001:
CLASS 1 LASER PRODUCT CLASS 1 LED PRODUCT

NOTES

a. Guaranteed unless otherwise specified.
b. All specifications valid at 1550 nm and 23 °C ± 1 °C, with

an FC connector.
c. In CW mode; sensitivity defined as 6 x rms noise level.
d. Wavelengths: 830 nm, 850 nm, 980 nm, 1300 nm, 1310

nm, 1450 nm, 1490 nm,

1550 nm, 1590 nm and 1625 nm.
e. Traceable to national standards; FOT-302X: up to 20 dBm.

f. From 10 dBm to

—

50 dBm.

g. From 26 dBm to

—

35 dBm.

h. Power of > —40 dBm for FOT-302, and of >

—

25 dBm for

FOT-302X.
i. For ± 0.05 dB, from 18 °C to 28 °C.
j. At 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm and

1625 nm; power > —50 dBm for FOT-302, and

> —40 dBm (typical) for FOT-302X.

k. All specifications valid at 23 °C ± 1 °C, with an FC

connector.

l. rms for lasers and —3 dB width for LEDs; typical values for

LEDs.

m. After 15 minutes warmup; expressed as ± half the difference

between the maximum and minimum values measured during
the period, with an APC connector on the power meter.

n. Typical autonomy in Auto mode.

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

MARKING REQUIREMENTS

㪖㽷尐㻑

O

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

X

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

Par t Na me

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)

Pol yb ro mi n at ed
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

a

⏘ⷵ兓ↅ

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a. If applicable.

Ⱁ㨫抑䞷ᇭ

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Mechanical

sub-assembly

a

㧉㬿兓ↅ

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Pro duct

ℶ❐

Environmental protection use period (years)

䘾⬒≬㔳∎䞷㦮棟 ( ㄃ )

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10

Battery

a

䟄㻯

a

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Ⱁ㨫抑䞷ᇭ

5

P/N: 1062089

CORPORATE
HEADQUARTERS

www.EXFO.com · [e-mail]

400 Godin Avenue Quebec (Quebec) G1M 2K2 CANADA

Tel.: [phone] · Fax: [phone]

EXFO AMERICA 3400 Waterview Parkway

EXFO EUROPE Omega Enterprise Park,

EXFO ASIA-PACIFIC 100 Beach Road,

EXFO CHINA Beijing Global Trade Center,

EXFO SERVICE
ASSURANCE

EXFO NETHAWK Elektroniikkatie 2 FI-90590 Oulu, FINLAND

TOLL-FREE (USA and Canada) 1 800 663-3936

© 2011 EXFO Inc. All rights reserved.
Printed in Canada (2011-12)

Suite 100

Electron Way

#22-01/03 Shaw Tower

Tower C, Room 1207,
36 North Third Ring Road
East, Dongcheng District

270 Billerica Road Chelmsford MA, 01824 USA

Richardson, TX 75080 USA
Tel.: [phone] · Fax: [phone]

Chandlers Ford, Hampshire S053 4SE ENGLAND
Tel.: [phone] · Fax: [phone]

SINGAPORE 189702
Tel.: [phone] · Fax: [phone]

Beijing 100013 P. R. CHINA
Tel.: [phone]
Fax: [phone]

Tel.: [phone] · Fax: [phone]

Tel.: [phone]
Fax: [phone]

