YOKOGAWA AQ2170 User manual

User’s
Manual
Yokogawa Meters & Instruments Corporation
IM AQ2170-01EN
1st Edition
AQ2170
Optical Power Meter
User’s Manual

Notes
1. The contents of this manual are subject to change without prior notice as a result of continuing
improvements to the instrument’s performance and functionality. The figures given in this manual
may differ from those that actually appear on your screen.
2. Every effort has been made in the preparation of this manual to ensure the accuracy of its
contents. However, should you have any questions or find any errors, please contact your nearest
YOKOGAWA dealer.
3. Copying or reproducing all or any part of the content of this manual without the permission of
YOKOGAWA is strictly prohibited.
Trademarks
1. Microsoft, Windows are either registered trademarks or trademarks of Microsoft Corporation in
the United States and/or other countries.
2. Adobe, Acrobat, and PostScript are trademarks of Adobe Systems Incorporated.
3. In this manual, the TM and R symbols do not accompany their respective registered trademark or
trademark names.
4. Other company and product names are registered trademarks or trademarks of their respective
holders.
1st Edition: October 2012(YMI)
All Rights Reserved, Copyright© 2012, Yokogawa Meters & Instruments Corporation

Thank you for purchasing YOKOGAWA products.
YOKOGAWA provides registered users with a variety of information and services.
Please allow us to serve you best by completing the product registration form accessible
from our homepage.
http://tmi.yokogawa.com/
Product Registration

Safety Information
Warnings!
Do not short-circuit the batteries. Excessive electrical current may cause personal injury due to
fumes,electric shock or equipment damage.
Do not operate the equipment near hot objects, in hot environments, in dusty/ humid atmosphere or when
condensation is present on the equipment. This may result in electric shock , product malfunction or poor
performance.
Safety Precautions
The general safety precautions described herein must be observed during all phases of operation.If the
instrument is used in a manner not specified in this guide ,the protection provided by the instrument may
be impaired .YOKOGAWA assumes no liability for the customer's failure to comply with these
requirements.
The following symbole are used on this instrument.
Improper handing or use can lead to injury to the user or damage to the instrument.
This symbol appears on the instrument to indicate that the user must refer to the user's manual
For special instructions. The same symbol appears in the corresponding place in the user's manual to
identify those instructions. In the manual, the symbol is used in conjunction with the word "WARNING" or
"CAUTION".
WANNING Calls attention to actions or conditions that could cause serious or fatal injury to the user,
and precautions that can be taken to prevent such occurrences.
CAUTION Calls attention to actions or conditions that could cause light injury to the user or cause
damage to the instrument or user's data, and precautions that can be taken to prevent
such occurrences.
Note Calls attention to information that is important for proper operation of the instrument.
!

1. Introduction
2. Warranty
3. Preparing for Operation
4. Specifications
5. Operation
6. Trouble Shooting
7. Recommended Replacement Parts
8. Maintenance
9. Outline drawing
10. Connector adapter
Table of contents
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1
The AQ2170 series are full featured mini sized and lightweight
optical power meters designed for use with an optical Light source
to perform optical loss measurements on optical fiber cables.
optical connections to the AQ2170 are made via the universal
adapter interface on the top of the unit.
The instrument has 7 working wavelengths(The AQ2170H is 5
wavelengths) to totally satisfy your needs.
It can be extensively used in telecommunication projects and
other situations where optical power of wavelengths close to
infrared ray needs to be measured.
.8.8.8.8
RE F
18 8 8
-
nm
1 Introduction

2
Exclusions
The warranty on your equipment shall not apply to defects resulting from the following:
Unauthorized repair or modification
Misuse, negligence, or accident
Returning Product
To return product, you may contact YOKOGAWA to obtain additional information if necessary.
To serve you better, please specify the reasons for the return.
All delivery and mails should be sent to the following nearest YOKOGAWA dealer.
2 Warranty

3.1 Unpacking the instrument
Packing material
We suggest that you keep the original packing material. Using the original packing material is your
guarantee of protecting the instrument during transit.
Checking the package contents
The standard accessories of AQ2170 are as follows:
Checking for damage in transit
After unpacking the instrument, check to see whether it was damaged in transit. This is particularly
likely if the outer casing is clearly damaged. If there is damage, do not attempt to operate the
instrument or to repair it without authorization. Doing so can cause further damage and you may
lose your warranty qualification.
Product Name
Main Unit
Dry battery AAA
Connector Adapter(FC,SC,LC,Ø1.25 ferrule,Ø2.5 ferrule)
Carrying Case
Operation Guide(Paper)
User's Manual(CD)
Protector
Strap
Qty.
1
4
Each 1
1
1
1
1
1
No.
1
2
3
4
5
6
7
8
3 Preparing for Operation
3

3.2 Discharged batteries
There is a battery indicator on the screen to show the remaining charge. There are four possibilities the
indicator may show, full, with 2 blacks, with 1 black and empty. If an empty battery indicator means the
power is almost out please replace it with a new one. To replace the batteries, please remove the
battery plate on the back of instrument.
When the battery charge is extremely low to supply the necessary power, the instrument will
automatically switch off.
4
Note
To eliminate the possibility of acid leakage, please take out the battery if the unit is not used for a
long time.

4.1 Sensor Specifications
Model AQ2170 AQ2170H
Power level: 100 μW(-10dBm); CW, Wavelength: 1310, Spectral width: 5 nm or less (1310 nm),
ambient temperature: 23 ±2°C,Optical fiber: SM (ITU-T G.652), Optical connector: FC/PC, Polarization condition: Excluding
Polarization dependence,Removing/Installing connector adapter : Including,1 year aging
1
Wavelength Range (nm)
Detector
Applicable Fibers Type
Optical Connector
Power Range(dBm)
Noise Level(dBm)
Uncertainty under standard conditions
850/1300/1310/1490/1550/1625/1650 nm 1310/1490/1550/1625/1650 nm
InGaAs
Light emitted from SM(ITU-T G.652),
GI(50/125 µm),GI(62.5/125 µm)optical fiber
Light emitted from SM(ITU-T G.652),
optical fiber
FC, SC, LC, 1.25 ferrule, 2.5ferruleØ Ø
-70~+10 dBm
-60 dBm
±5%
-50~+26 dBm
-40 dBm
±5%
1
4 Specifications
5

4.2 General Specifications
Model AQ2170 AQ2170H
Displayed Resolution
Displayed Unit
Modulation Mode
Measurement Interval
Measurement mode
Power supply
Environmental conditions
Dimensions and weight
0.01dB(>-60dBm),0.1dBm(≤-60dBm) 0.01dB(>-40dBm),0.1dBm(≤-40dBm)
Absolute values:dBm, mW, µW Relative values: dB
CW,CHOP(270Hz,1kHz,2kHz)
Approximately150 ms
Absolute value measurement
Relative value measurement:
Relative value measurement relative to a set reference value
Relative value measurement based on a displayed measurement
Dry and Rechargeable Battery AAA
Approximately 40 hours
Power turns off automatically when there is no key inputfor
approximately 10 minutes (this function can bedisabled)
Battery indicator
Battery life
Power saving
Battery check
Operating temperature range:-10~50℃,
Operating humidity range:20~80%
Storage temperature range:-20~+70℃(no condensation)
Storage humidity range:5~95%(no condensation)
63(W)×116(H)×35(D) mm, Approximately160 ｇ
1
2
2
1
Note
Continuation Measurement, using alkaline dry cells, at 23 ±2 A protector is removed. ℃ ℃
6
Specifications are at 23℃±2℃ uncless otherwise noted.Optical connector:
FC/PC

5.1 Installing the Batteries
Turn the screw on the rear panel with a coin or other flat object to remove the cover, then install the
batteries.
Turning the screw locks/unlocks the cover as shown in the figure.
Insert four AAA batteries into the holder following the polarity markings. Always close the cover
after installing batteries.
If the low battery indicator, you must change the batteries immediately. The instrument runs for
approximately forty hours when using alkaline AAA batteries (depending on operating conditions).
Lock Unlock
5 Operation
7

Note
Use the correct size and type of battery specified by the manufacturer of your device.
Keep battery contact surfaces and battery compartment contacts clean by rubbing them with a clean
pencil eraser or a rough cloth each time you replace batteries.
Remove batteries from a device when it is not expected to be in use for several months.
Make sure that you insert batteries into your device properly, with the + (plus) and - (minus) terminals
aligned correctly.
CAUTION:
Some equipment using more than three batteries may appear to work properly even if one battery is
inserted incorrectly.
Store batteries in a dry place at normal room temperature.
Most batteries will provide dependable long life even after five years of storage in these conditions. Do
not refrigerate batteries, this will not make them last longer.
Extreme temperatures reduce battery performance. Avoid putting battery-powered devices in very warm
places.
8
!

5.2 Attaching a Connector Adapter
A specialized connector adapter is required for connecting an optical connector to the instrument. Choose
an adapter that matches the optical connector you will use.
The screw mechanism that attaches the connector adapter to the instrument is of precision manufacture.
Please handle all parts with care so as not to damage the screw threads.
Do not allow dirt to come into contact with the optical input section. Dirt or other
foreign particles can influence measurement. Attach the protective cap to the
optical input connector when not in use.
(1) Remove the optical input connector cap.
(2) Attach a connector adapter.
The connector adapter screws onto the connector; hold the adapter upright to align
the threads properly, then turn to tighten.
Do not attach the connector adapter at an angle, and do not forcibly turn it any
further after it has initially tightened. Doing so can damage the screw threads or
sensor.
Note
It is recommended to clean the inside of the connector adapter using a dedicated
swab or other cleaner and anhydrous alcohol.
Dedicated swabs for cleaning optical adapters are available from NTT, including
the “CLETOP Stick-Type” (NTT-ME).
9

5.3 Attaching/Detaching a Protector
10
Note
We recommend that you replace the
protector when damaged.
(1) Please insert in the upper part to a protector.
(2) Please insert the lower part in a protector.

5.4 Keypad
ON
OFF
>2s PERM
KeyNo. Function
1
2
3
4
5
Switches measurement unit among dBm,dB,mW
Switch back lighting on/off
REF
>2s SET
dBm/
dB/mW
Switches instrument on/off. Long keypress over 2 seconds
while powering on is to activate the instrument without Auto-off function.
Selects measurement wavelength in sequence of 850/1300/1310/1490/
1550/1625/1650nm(AQ2170H:1310/1490/1550/1625/1650
Short keypress to display reference level of present test wavelength.
Long Key press over 2seconds to set a new reference level of present
test wavelength.
11

.8.8.8.8
REF
18 8 8
-
nm
Wavelength
Reference
Measurement Unit
Power value
Auto-off
Battery Charge
5.5 LCD
270Hz 1kHz 2kHz
Frequency
12

5.7 Setting the wavelength
Press the “λ” key repeatedly until the desired wavelength is
displayed. You can select fromseven optional wavelengths:
850nm,1300nm,1310nm,1490nm, 1550nm,1625nm,1650nm(AQ2170)
1310nm,1490nm,1550nm,1625nm,1650nm(AQ2170H)
The instrument defaults to the wavelength 1550nm.
5.6 Turning the instrument on and off
Press the “ON/OFF” key briefly.
The instrument powers-on.
Please check the battery capacity if it fails.
Press the “ON/OFF” key briefly again.
The instrument powers-off.
Note
Auto-off function
1. The instrument powers off automatically if no keypress in 10 minutes.
2. Press the “ON/OFF” key for about 2 seconds to power on the instrument with “Auto-off”
function deactivated.
AUT O- OF F
2 0.0 0
13 1 0
-
nm
1490
1550
1625
1650
850 1300
13

5.8 Switching measurement mode
There are three measurement units you can choose by
pressing the “dBm/dB/mW” key repeatedly, dB,
dBm,mW.
5.9 Setting reference value
1. Press the “REF” key to display the stored reference for the
current wavelength and a sign of “REF” will be displayed on the screen to
indicate that it is a reference value. The displayed value only lasts 1
second.
2. Press and hold the “REF” key over 2 seconds to store the presently
measured value as the new reference value for the
current wavelength. During the process the “REF” sign
flashes twice on the screen and buzzer sound is heard.
Once the new reference level is set, the AQ2170
switches to the dB measurement mode. The displayed
value only lasts 1 second.
Note
1.Long key press for over 2 seconds, the unit will be shifted to
"dB" automatically.
2.When the input laser power is modulated laser source, it will affect the
setting of REF value. Please guarantee the input laser source is CW
laser when setting REF value.
value
AUTO -OFF
2 0.0 0
REF
1 3 1 0
-
nm short
keypress
.0.00
RE F
18 8 8
-
25.08
1310
nm
nm
5.88
1310
nm
14
REF

1kHz
5.11 Frequency detecting
If the tested wavelength is carrying a tone of 270Hz, 1kHz, or
2kHz, the respective frequency indicates on the screen
5.12 The overflow of the measured power value
If the optical power level being measured exceeds the measureable range,
the"HI" value indicating an over range.
If the optical power level being measured falls below the measureable range,
the "LO" value indicating an under range.
5.10 Switching backlighting of the LCD on and off
Press the backlighting key.
Backlighting switches on.
Press the backlighting key again.
Backlighting switches off.
-5.0
1310
nm
-5.0
1310
nm
1310
nm
1310
nm
L 0
-20.00
1310
nm
15
270Hz