Ando electric Aq7250 User manual

AQ7250

mini-OTDR

Instruction Manual

ANDO ELECTRIC CO., LTD

©Copyright ANDO ELECTRIC CO., LTD. JAPAN 1999

AS-62488-1 Rev.2.1

Preface

PrefacePreface

Preface

We greatly appreciate your purchase of the AQ7250 mini-OTDR.

The AQ7250 mini-OTDR is a small sized measuring instrument which is equipped with various

functions, and is used for event localization and transmission loss measurement of optical fiber

cables.

Before using the AQ7250 mini-OTDR (hereafter called the instrument), be sure to read this manual

thoroughly. Especially, read the “Safety precautions” in the opening section of this manual and

familiarize yourself with the contents, then use the instrument.

This manual should be stored with great care so that it is accessible while operating the instrument.

Warranty

WarrantyWarranty

Warranty

• The guarantee period is limited to one year after you purchased the product.

• If you find that the product is defective within the guarantee period, we will repair the

product at no charge to you according to our guarantee.

• If the failure or damage is caused by the user, by a modification or change, or by a natural

disaster, even within the guarantee period, we shall not be liable for free service.

• ANDO ELECTRIC products posses certificates which guarantee quality.

• ANDO ELECTRIC products are shipped after strict inspection has been carried out

according to the ANDO ELECTRIC quality assurance system. If a defect occurs during

manufacturing, or if a defect is caused by an accident during transportation, contact the

nearest office in charge of sales, given at the end of the instruction manual.

Marks and symbols

III

Marksandsymbols

MarksandsymbolsMarksandsymbols

Marksandsymbols

Safety mark and symbol

The following marks are used as guides for the safe handling of the instrument, to prevent you or

other people from being harmed, and to prevent the instrument from being damaged. Familiarize

yourself with these symbols, then read the manual.

WARNING

This mark indicates the presence of a hazard which will cause severe

personal injury or death if the warning is ignored and the instrument is

incorrectly operated.

CAUTION

This mark indicates the presence of a hazard which may cause considerable

personal injury or property damage if the caution is ignored and the

instrument is incorrectly operated.

In addition, the following symbols are used along with the above marks to highlight the risk of

personal injury or property damage.

indicates “Attention” such as for warning and caution.

An illustration in the symbol indicates the specific warning.

(The example on the left shows a caution against fire.)

indicates “Prohibition”.

An illustration in the symbol indicates the specific

prohibition. (The example on the left shows a prohibition

against disassembly.)

indicates “Action”.

An illustration in the symbol indicates the specific action to

be taken. (The example on the left shows that the AC plug

adaptor should be removed from the socket.)

Other symbols

This is called the alert symbol.

Text following this symbol refers to an important point of safety. Be sure to observe this

notice. A combination of this symbol with “WARNING” or “CAUTION” indicates the

level of personal injury or property damage.

Indicates precautions, procedures and check items which should be referred to when

handling the instrument.

Indicates information which should be consulted when using the instrument.

Indicates a reference page described in this manual.

Safety precautions

Safetyprecautions

SafetyprecautionsSafetyprecautions

Safetyprecautions

To use the instrument safely, read this instruction manual, especially the section “Safety precautions”

thoroughly. After you have read the manual, be sure to store it in an easily accessible place.

For the safety operation

This instrument is a Class I measuring instrument.

WARNING

When the AC adapter is used, be sure to provide grounding by

using a wire of AWG18 or equivalent (3 m or shorter).

Safety precautions

LASER SAFETY

Initial Safety Information for Laser Source Unit.

The Specifications for these Units are as follows.

AQ7254 AQ7255 AQ7259

Laser Type FP-Laser

InGaAsP FP-Laser

AlGaAsP/InGaAsP

Laser Class

According to

21 CFR 1040.10

(Canada, USA)

1 1 1

Laser Class

According to

EN60825-1:1994+A11:1996

(Europe)

3A 3A 3A

Pulse Width 0.02, 0.1, 0.2, 0.5, 1, 4,

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1, 4, 10, 20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

µsec

Beam Diameter 10µm 10µm 62.5µm

Wavelength 1.31/1.55±0.03µm 1.31/1.55±0.025µm 0.85/1.30±0.03µm

AQ7254B AQ7255B AQ7256B

Laser Type FP-Laser

InGaAsP FP-Laser

InGaAsP

Laser Class

According to

21 CFR 1040.10

(Canada, USA)

1 1 1

Laser Class

According to

EN60825-1:1994+A11:1996

(Europe)

3A 3A 3A

Pulse Width 0.01,0.02, 0.1, 0.2, 0.5,

1, 4, 10,20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1, 4, 10, 20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1,4,10,20

µsec

Beam Diameter 10µm 10µm 10µm

Wavelength 1.31/1.55±0.03µm 1.31/1.55±0.025µm 1.31/1.55/1.625

±0.025µm

Safety precautions

NOTE

Canada, USA

The Laser safety warning labels are fixed on the optical unit

NOTE

Europe

A sheet of laser safety warning labels are included with the optical unit. You MUST stick the labels in the

local language onto the outside of the mainframe, in a position where they are clearly visible to anyone using

the instrument.

You MUST return instruments with malfunctioning laser boxes to a Service Center for repair and

calibration.

WARNING

Use of controls or adjustments or performance of procedures

other than those specified for the laser source may result in

hazardous radiation exposure.

Do not emit a laser light when an optical fiber is not connected

on the optical output connector. The optical output connector

is located on the top panel of this instrument.

The LD unit emits laser light when either “REAL TIME”

or ”AVERAGING START/STOP” button is pressed. The

buttons are located on the front panel of this instrument.

“LASER ON” is displayed on the display of this instrument

while a laser light is emitted.

Under no circumstances look into the end of an optical cable

attached to the optical output when the device is operational.

The laser radiation is not visible to the human eye, but it can

seriously damage your eyesight.

Refer Servicing only to qualified and anthorized personnel.

Safety precautions

VII

LASER SAFETY

Informations et Consignew de Sécurité Relatives à l’Utilisation des Lasers.

Les Spécifications des Modules Laser sont les Suivantes:

AQ7254 AQ7255 AQ7259

Laser Type FP-Laser

InGaAsP FP-Laser

AlGaAsP/InGaAsP

Laser Class

Accordingto

21 CFR 1040.10

(Canada, USA)

1 1 1

Laser Class

According to

EN60825-1:1994+A11:1996

(Europe)

3A 3A 3A

Pulse Width 0.02, 0.1, 0.2, 0.5, 1, 4,

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1, 4, 10, 20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

µsec

Beam Diameter 10µm 10µm 62.5µm

Wavelength 1.31/1.55±0.03µm 1.31/1.55±0.025µm 0.85/1.30±0.03µm

AQ7254B AQ7255B AQ7256B

Laser Type FP-Laser

InGaAsP FP-Laser

InGaAsP

Laser Class

Accordingto

21 CFR 1040.10

(Canada, USA)

1 1 1

Laser Class

According to

EN60825-1:1994+A11:1996

(Europe)

3A 3A 3A

Pulse Width 0.01,0.02, 0.1, 0.2, 0.5,

1, 4, 10,20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1, 4, 10, 20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1,4,10,20

µsec

Beam Diameter 10µm 10µm 10µm

Wavelength 1.31/1.55±0.03µm 1.31/1.55±0.025µm 1.31/1.55/1.625

±0.025µm

Safety precautions

VIII

Remarque

Canada, USA

Les etiquettes de sécurité sont affichées sur le module laser.

Remarque

Europe

Les etiquettes de sécurité sont incluses dans le module laser. Il est obligatoire de coller une

etiquette en langage local à l’exterieur de l’appareil de telle sorte qu’elle soit parfaitement visible

par l’utilisateur.

Safety precautions

Il est obligatoire de retourner tout appareil présentant un défaut de fonctionnement du laser

uniquement à un centre de réparation. radiations

WARNING

L’utilisation du laser en dehors de ses limites de performances

et des procédures définies par peut conduire à une exposition

dangereuse de l’utilisateur aux radiations.

Ne pas émettre de lumière quand la fibre optique n’est pas

connecté au connecteur de sorite.

Le connecteur optique de sorite est placé sur le paneau du

dessus de cet instrument.

La diode laser émet quand le bouton <REAL TIME> ou

<AVERAGING START/STOP> est activé

Ces boutons sont situés sur la face avant de cet instrument.

<LASER ON> s’affiche sur l’affichage de cet instrument

pendent l’émlssion de la lumière.

En aucun cas ne tenter de regarder l’extrémité de la fibre

optique attachée au connecteur lorsque le laser est en activité.

Bien que la lumière émise par le laser ne soit pas visible elle

peut cependant être dangereuse pour la vue.

Seul le personnel autorisé par est qualifié pour intervenir sur le

laser.

Safety precautions

LASER SAFETY

Sicherheitsinformation für Laser Quellen

Die Spezifikationen für die Lasereinschübe sind wie folgt:

AQ7254 AQ7255 AQ7259

Laser Type FP-Laser

InGaAsP FP-Laser

AlGaAsP/InGaAsP

Laser Class

According to

EN60825-1:1994+A11:1996

(Europe)

3A 3A 3A

Pulse Width 0.02, 0.1, 0.2, 0.5, 1, 4,

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1, 4, 10, 20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

µsec

Beam Diameter 10µm 10µm 62.5µm

Wavelength 1.31/1.55±0.03µm 1.31/1.55±0.025µm 0.85/1.30±0.03µm

AQ7254B AQ7255B AQ7256B

Laser Type FP-Laser

InGaAsP FP-Laser

InGaAsP

Laser Class

According to

EN60825-1:1994+A11:1996

(Europe)

3A 3A 3A

Pulse Width 0.01,0.02, 0.1, 0.2, 0.5,

1, 4, 10,20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1, 4, 10, 20

µsec

0.01, 0.02, 0.1, 0.2, 0.5,

1,4,10,20

µsec

Beam Diameter 10µm 10µm 10µm

Wavelength 1.31/1.55±0.03µm 1.31/1.55±0.025µm 1.31/1.55/1.625

±0.025µm

Safety precautions

Hinweis

Europe

Ein Blatt mit Laser Warnaufklebern ist jedem Lasereinschub beigefügt. Die Aufkleber müssen in

der Landessprache, für den Anwender gut sichtbar, an der Aussenseite des Grundgerätes angebracht

werden.

Defekte Lasereinschübe müssen zur Reparatur oder zur Kalibration an ein Service Büro geschickt

werden.

WARNING

Bedienung, Abgleicharbeiten oder die Durchführung von

Tests, die nicht im Handbuch angegeben sind, können zum

Austritt gefährlicher Strahlung führen.

Ist kein Lichtwellenleiter an den optischen Ausgabeanschluβ

angeschlossen ist, die Laserausgabe nicht auf ENABLE

stellen. Der optische Ausgabe-Anschluβbefindet sich auf der

Oberseite des Systems.

Der Laserstrahl wird durch Betätigen der “REAL TIME” oder

“AVERAGING START/STOP”-Taste an der Vorderwand des

Systems ausgegeben.

Während der Laserstrahl ausgegeben wird, zeigt des

LCD-Display des Systems “LASER ON” an.

Wenn der Laser eingeschaltet ist, darf unter keinen

Umständen in das Ende des optischen Kabels oder in den

Laserausgang am Gerät geschaut werden.

Der Laserstrahl ist für das menschliche Auge unsichtbar, kann

aber das Sehvermögen ernsthaft verletzen.

Reparaturarbeiten dürfen nur von qualifliziertem und

bevollmächtigtem Personal durchgeführt werden.

Safety precautions

XII

Precautions for the power supply

Three types of the power supply can be used for the instrument. Use each power supply after

reading the precautions thoroughly.

Special AC adapter

WARNING

Be sure to provide grounding before operation.

Not grounding may cause an electric shock or damage to the

equipment.

CAUTION

Do not connect or disconnect the AC adapter when the power

supply is turned ON.

The equipment may be damaged.

Battery pack

WARNING

Use only the special battery pack.

Otherwise an electric shock, fire, or damage to the equipment

may occur.

When the battery pack is to be attached or removed, turn off

the power switch, and remove the AC adapter.

An electric shock may occur.

Do not throw the battery pack into a fire.

An explosion may occur.

CAUTION

Do not disassemble or modify the instrument.

An electric shock, fire, or an accident may occur.

Keep the instrument away from raindrops.

An electric shock, fire, or damage to the equipment may occur.

Do not short-circuit a terminal.

A fire, or damage to the equipment may occur.

Safety precautions

XIII

CAUTION

Do not shake or drop the instrument.

The equipment may be damaged.

Do not place the instrument in a heated place such as a place

exposed to sun glare, or in the glove box of a car, or in a humid

place.

Solution may leak or rust may occur on the metal surface.

When the instrument is not to be used for a long time, remove

the battery pack.

If the battery level is low, charge the battery as soon as

possible.

Leaving the level low may cause over discharge, reducing the

battery pack performance and life.

If solution from the battery (dilute sulfuric acid) comes in

contact with the skin, wash it immediately using a lot of water.

• To prevent battery failure, carry out regular visual checks to confirm that there is

damage such as cracks or leakage.

• Prolonged storage may shorten the battery life.

In this case, charge/discharge the battery several times. Normal battery life can be

recovered in this way.

• To prevent over discharge, charge the battery regularly (every three months).

• Charge the battery pack at a temperature between 5°C and 35°C. Charging at other

temperatures will reduce the battery pack performance and life.

• Please remove a battery pack, when you do not use AQ7250 for a long period of

time. Please keep the removed battery pack in the place with little humidity of

-20°C and +30°C.

• If charge is repeated and is performed without using up the electric power of a

battery pack completely, a battery will memorize the charge level, and if the level

at the time of electric discharge is reached, although electric power remains, the

"memory effect" of stopping an electric power supply is caused.

In order to return battery capacity, after carrying out full electric discharge once

or twice, the influence of a “memory effect” is cancelable by repeating the method

of carrying out full charge.

+12VDC external power supply

If the external power supply is to be used, special consultation must be taken.

WARNING

Be sure to consult us before using the external power supply.

We shall not be liable if an accident or failure occurs due to

use without consultation.

Safety precautions

XIV

Precautions for the operating environment and conditions

Rule for the operating environment

WARNING

Be careful not to let the instrument get wet.

A fire, electric shock, or damage to the equipment may occur.

Rule for the operating conditions

WARNING

Be sure to use the authorized battery pack and AC adapter.

A fire, electric shock, or an accident may occur.

Precautions for installation and system setting

Precautions for personnel who carry out installation and

system setting

WARNING

Be sure to provide grounding before operation.

Not grounding may cause electric shock or damage to the

equipment.

Do not connect the power supply using parallel connection.

The cable may overheat, resulting in a fire.

CAUTION

Insert the power plug into the socket securely.

If a metal item comes in contact with the power plug, a fire or

electric shock could occur.

When holding the instrument, be careful not to drop it.

This may cause injury.

Safety precautions

Rules and prohibitions relating to the installation

environment and conditions

WARNING

Do not insert a metal bar into the interior from the opening.

A fire, electric shock, or an accident may occur.

CAUTION

Keep the power cord away from the heat sources.

An uncoated cord may cause a fire or electric shock.

Do not connect or disconnect the power plug with a wet hand.

An electric shock may occur.

Do not place the instrument in a humid or dusty place.

An electric shock or damage to the equipment may occur.

Do not place the instrument on an unstable surface such as a

shaky or sloping table.

The instrument may fall or move, resulting in injury.

Do not place the instrument on a surface subjected to vibration

or impact.

The instrument may fall or move, resulting in injury.

When the power cord is to be removed, pull out the plug.

If the cord is pulled, it may be damaged, resulting in a fire or

electric shock.

Do not store the instrument in a place exposed to sun glare or

in a car in hot weather.

The temperature inside the instrument may rise, resulting in

failure.

Prohibitions relating to installation

WARNING

Do not damage, break, or modify the power cord.

If a heavy item is placed on the cord, or the cord is overheated

or pulled, it may be damaged, resulting in a fire or electric

shock.

CAUTION

Move the instrument only after the power plug has been

removed from the socket and the external line has been

disconnected.

Otherwise the cord may be damaged, resulting in a fire or

electric shock.

Safety precautions

XVI

Precaution when handling the instrument

For the procedure for handling the instrument, refer to the instruction manual.

If an alert symbol (combined with “WARNING” or “CAUTION”) is found, use the instrument

according to the instructions in the manual.

WARNING

Do not place containers with water or other liquids, or any

small metal pieces above or close to the instrument.

If water spills on the instrument or any metal piece enters, a

fire, electric shock or damage to the equipment may occur.

Do not modify, bend, distort, or pull the power cord

intentionally.

A fire or electric shock may occur.

Be sure to connect or disconnect the connectors with the

instrument after the power supply has been turned off.

A fire, electric shock or damage to the equipment may ocuur.

Do not disassemble or modify the instrument.

A fire, electric shock or an accident may occur.

Do not charge the battery while there is moisture on the battery

pack terminal.

A fire or electric shock may occur.

CAUTION

Check the battery polarity (positive and negative positioning)

before inserting it.

Incorrect positioning may cause the battery to burst or the

solution to leak, resulting in a fire, injury or local contamination.

When an open/close section is to be closed, exercise care not

to pinch or hurt the fingers.

When the instrument is not to be used for a long time, be sure

to remove the power plug from the socket for safety.

Lightening may cause a fire or electric shock.

Do not use the instrument in temperatures of 0°C or less.

An indication error may occur.

Do not short-circuit the battery pack terminal with a metal

object.

A fire, or damage to the equipment may occur.

Safety precautions

XVII

Precautions for maintenance

Regular maintenance is recommended.

Contact the nearest office in charge of sales, given at the end of the instruction manual.

CAUTION

If dust has acculumated in the instrument for a long time

without being cleaned, a fire or damage to the equipment may

occur.

Countermeasures when an error occurs

WARNING

If an error occurs in the instrument, do not repair it by yourself.

An electric shock or injury may occur. The guarantee is void if

the instrument is repaired by the user without our approval.

If the instrument has been dropped or broken, turn off the main

power switch, remove the power plug from the socket, then

Continued operation of the instrument may cause a fire,

electric shock, or damage to the equipment may occur.

If foreign matter enters the instrument, turn off the main power

switch, remove the power plug from the socket, then contact

us.

Continued operation of the instrument may cause a fire,

electric shock, or damage to equipment may occur.

If the instrument is operated in a condition where there is

smoke or an unusual odor emitted from it, this may cause a

fire, electric shock, or damage to the equipment. If an

abnormal condition occurs, turn off the main power switch

immediately and remove the power plug from the socket. After

checking that no more smoke is emitted, ask us to repair it.

Never repair the instrument by yourself as it is very dangerous.

If the power cord is damaged, ask us to replace it.

Using the cord as it is may cause a fire or electric shock.

Precautions for discarding the instrument

WARNING

When the instrument is to be discarded, do not throw it into a

fire.

Explosion may cause a fire or injury such as burn, etc.

How the manual is structured

XVIII

Howthemanualisstructured

HowthemanualisstructuredHowthemanualisstructured

Howthemanualisstructured

Chapter 1 Introduction

Describes the names and functions of each part of this instrument, the setup procedure

before using the instrument, and daily maintenance.

After your purchase, read this chapter when installing the instrument.

Chapter 2 Basic Measurement

Explains basic operations which are necessary for using the instrument, such as how to set

up the measuring conditions and how to measure the optical fiber cables.

Be sure to read this chapter.

Chapter 3 Inputting Text

Explains how to input text such as label names and date.

Chapter 4 Storing and Recalling of the Measured Data

Explains how to store, delete, and print the measured data, as well as other data control

procedures