Hioki 3664 User manual

3664
Instruction Manual
OPTICAL POWER METER
EN
Aug. 2018 Revised edition 8
3664A982-08 18-08H
Be sure to read this manual
before using the instrument Safety Information  p.2
When using the instrument
for the rst time Troubleshooting
Names and Functions of Parts  p.9 Error Display  p.49
Measurement Preparations  p.13
Measurement  p.19

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Contents
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APPX
IDX
Contents
Introduction .................................................................. 1
Inspection ..................................................................... 1
Safety Information ........................................................ 2
Operating Precautions ................................................. 3
1 Overview 7
1.1 Product Overview ............................................... 7
1.2 Features ............................................................. 8
1.3 Names and Functions of Parts ........................... 9
2 Measurement Preparations 13
2.1 Attaching the Strap ........................................... 13
2.2 Supplying Power .............................................. 14
2.2.1 Using the AC Adapter ........................................14
2.2.2 Using the Batteries ............................................15
2.3 Connecting the Optical Sensor ......................... 16
2.4 Connecting the Analog Output Cord ................ 17
2.5 Turning the Power On and Off ......................... 18
3 Measurement 19
3.1 Setting the Measurement Mode ....................... 20
3.2 Setting the Range ............................................. 21
3.2.1 Auto Range .......................................................21
3.2.2 Manual Range ...................................................22
3.3 Setting the Wavelength .................................... 24
3.3.1 Setting an Arbitrary Measurement Wavelength .24
3.3.2 Retrieving the Wavelength Setting from the 
Measurement-Wavelength Memory ...................26
3.4 Starting Measurement ...................................... 26
3.5 Setting Example ............................................... 28
3.5.1 Optical-Power Measurement .............................28
3.5.2 Relative Measurement (Measured-value basis) 29
3.5.3 Relative Measurement (Input-value basis) ........31
3664A982-08

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Contents
4 Functions 33
4.1 Scalling Function .............................................. 33
4.1.1 Turning ON the Scaling Function ......................33
4.1.2 Turning OFF the Scaling Function .....................36
4.2 Maximum-Value Hold / Minimum-Value 
Hold / Averaging ............................................... 37
5 Control by Computer 39
5.1 Overview of Control .......................................... 40
5.2 Installing the Driver ........................................... 42
6 Specifications 43
6.1 Measurement Specifications ............................ 43
6.2 General Specifications ..................................... 45
7 Maintenance and Service 47
7.1 Cleaning ........................................................... 47
7.1.1 Cleaning of the 3664 .........................................47
7.1.2 Cleaning of the Optical Sensors ........................48
7.2 Service ............................................................. 48
7.3 Error Display ..................................................... 49
7.4 Reset ................................................................ 51
7.4.1 System Reset ....................................................51
7.4.2 Setting Data Reset ............................................51
7.4.3 Measurement-Wavelength Memory Reset ........52
7.5 Confirming Software Version ............................ 53
7.6 Confirming Sensor Data Compatibility ............. 53
7.7 Replacing the Batteries .................................... 54
Appendix 55
Explanations .............................................................. 55
Options ....................................................................... 56

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Introduction
Thank you for purchasing the HIOKI “Model 3664 OPTICAL
POWER METER.” To obtain maximum performance from the
instrument, please read this manual first, and keep it handy for
future reference.
Trademarks:
Microsoft and Windows are either registered trademarks or trade-
marks of Microsoft Corporation in the United States and other
countries.
Inspection
• When you receive the instrument, inspect it carefully to ensure
that no damage occurred during shipping. In particular, check the
accessories, panel switches, and connectors. If damage is evi-
dent, or if it fails to operate according to the specifications, con-
tact your dealer or Hioki representative.
• Use the original packing materials when transporting the instru-
ment, if possible.
Verifying Package Contents
Options
Model 9246 CARRYING CASE
Model 9742 OPTICAL SENSOR
Model 9742-10 OPTICAL SENSOR
Model 9743 OPTICAL SENSOR
Model 9743-10 OPTICAL SENSOR
Model 9445-02 AC ADAPTER
Model L9094 OUTPUT CORD
Model 3664 OPTICAL
POWER METER (1)
Model 9445-02 AC ADAPTER (1) Model L9094 OUTPUT CORD (1)
Instruction Manual (1)
LR6 alkaline batteries (4)
Driver CD-R (1)
USB Cable (1)
Strap (1)

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Safety Information
Safety Symbols
This manual contains information and warnings essential for safe
operation of the instrument and for maintaining it in safe operating
condition. Before using it, be sure to carefully read the following
safety precautions.
The following symbols in this manual indicate the relative impor-
tance of cautions and warnings.
Other Symbols
This instrument is designed to comply with IEC 61010 Safety
Standards, and has been thoroughly tested for safety prior to
shipment. However, mishandling during use could result in
injury or death, as well as damage to the instrument. Be cer-
tain that you understand the instructions and precautions in
the manual before use. We disclaim any responsibility for
accidents or injuries not resulting directly from instrument
defects.
In the manual, the symbol indicates particularly
important information that the user should read before
using the instrument.
The symbol printed on the instrument indicates that
the user should refer to a corresponding topic in the
manual (marked with the symbol) before using the
relevant function.
Indicates that incorrect operation presents an
extreme hazard that could result in serious injury or
death to the user.
Indicates that incorrect operation presents a signifi-
cant hazard that could result in serious injury or
death to the user.
Indicates that incorrect operation presents a possi-
bility of injury to the user or damage to the instru-
ment.
Indicates advisory items related to performance or
correct operation of the instrument.
Indicates the prohibited action.
Indicates the location of reference information.

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Operating Precautions
Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.
Observe the following to avoid damage to the instrument.
• Do not allow the instrument to get wet, and do not take measure-
ments with wet hands. This may cause an electric shock.
• Do not use the instrument where it may be exposed to corrosive
or combustible gases. The instrument may be damaged or
cause an explosion.
• To avoid damage to the instrument, protect it from physical
shock when transporting and handling. Be especially careful to
avoid physical shock from dropping.
• Do not store or use the instrument where it could be exposed to
direct sunlight, high temperature or humidity, or condensation.
Under such conditions, the instrument may be damaged and
insulation may deteriorate so that it no longer meets specifica-
tions.
• This instrument is designed for use indoors. It can be operated
at temperatures between 0 and 40°C without degrading safety.
Direct
Avoid the following
Sunlight
High Temperature
High Humidity
• After use, always turn OFF the power.
• The “ ” indicator appears when battery voltage becomes low.
Replace the batteries as soon as possible.
• Use the specified battery (AA alkaline battery) only. If a non-
specified battery such as a manganese battery is used, the
service hours may be shortened.
• When connecting the instrument to a PC with a USB cable,
use a cable of 2 m or shorter to prevent the influence of noise.

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Cords and Cables
• Avoid stepping on or pinching cables, which could damage the
cable insulation.
• To avoid breaking the cables, do not bend or pull them.
• To avoid damaging the output cable, grasp the connector, not
the cable, when unplugging the cable.
Optical Sensor
• Use only the specified optical sensor. Using a non-specified sen-
sor may result in incorrect measurements due to poor connec-
tion or other reasons.
• To prevent damage to the instrument and sensor, never connect
or disconnect a sensor while the power is on, or while the sensor
is connected around a conductor.
• To avoid damaging the optical sensor and to ensure accurate
measurements, avoid dropping or applying any physical shock
to the optical sensor.
• Avoid touching the detector window with your bare hands. The
detector window must be clean for the sensor to meet the
specified performance parameters.
• Avoid scratching the detector window with sharp or pointed
objects (e.g., the tips of tweezers) or against hard surfaces.
Damage to the detector window may prevent the sensor from
meeting specified performance parameters.
• Make sure no stress is applied to the repeater cable of the 9742-
10, 9743-10 between the sensor main unit and its detector
element.
To prevent dust accumulation, stains, and damage, cover the
detector window with the sensor cover when the sensor is not in
use.

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Preliminary Checks
• Before using the instrument, make sure that the insulation on the
optical sensor cable and USB cable is undamaged and that no
bare conductors are improperly exposed. Using the instrument
in such conditions could cause an electric shock, so contact your
dealer or Hioki representative for repair.
• Before using the instrument the first time, verify that it operates
normally to ensure that the no damage occurred during storage
or shipping. If you find any damage, contact your dealer or Hioki
representative.
Care and Handling of CD-R
•Always hold the disc by the edges, so as not to make finger-
prints on the disc or scratch the printing.
• Never touch the recorded side of the disc. Do not place the disc
directly on anything hard.
• Do not wet the disc with volatile alcohol or water, as there is a
possibility of the label printing disappearing.
• To write on the disc label surface, use a spirit-based felt pen. Do
not use a ball-point pen or hard-tipped pen, because there is a
danger of scratching the surface and corrupting the data. Do not
use adhesive labels.
• Do not expose the disc directly to the sun's rays, or keep it in
conditions of high temperature or humidity, as there is a danger
of warping, with consequent loss of data.
• To remove dirt, dust, or fingerprints from the disc, wipe with a dry
cloth, or use a CD cleaner. Always wipe radially from the inside
to the outside, and do no wipe with circular movements. Never
use abrasives or solvent cleaners.
• Hioki shall not be held liable for any problems with a computer
system that arises from the use of this CD-R, or for any problem
related to the purchase of a Hioki product.

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1.1 Product Overview
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The 3664 OPTICAL POWER METER is an instrument for measur-
ing the optical power of a spatial light. It is suitable for measure-
ment of the optical power of a laser light source and an LED light
source. The 3664 is a hand-held meter equipped with various mea-
surement functions and interfaces that meet diversified measure-
ment needs. The optical sensors (optional) for the power meter are
interchangeable, as the sensitivity of each sensor is adjusted inde-
pendently.
Overview 1
1.1 Product Overview

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1.2 Features
Scaling function
The reading of the 3664 OPTICAL POWER METER can be con-
verted to the reading of another optical power meter by a simple
operation.
Various measurement functions
In addition to the optical power measurement (absolute-value mea-
surement), the 3664 power meter has relative-measurement, max-
imum-value-hold, minimum-value-hold, and averaging functions.
With all these functions, the display unit can be switched between
W and dBm (dB).
Automatic correction of sensitivity through input of
the measurement wavelength
When the measurement wavelength is entered, the wavelength
sensitivity of the sensor connected to the 3664 is automatically cor-
rected for measurement display.
Interface with a computer
The USB interface is provided as standard equipment. The 3664
can be controlled on the PC, its settings can be edited on the PC,
or its measurement data can be uploaded to the PC.
Analog output terminal
The 3664 has an analog output terminal. It outputs in the voltage
form the output signal of the optical sensor. Use this terminal, for
example, when performing monitoring using a DMM or recording
data for extended periods.
Auto-power-save function
When the 3664 is running on the battery, if there is no key opera-
tion or USB communication for approximately 10 minutes, the
power to the 3664 will be automatically turned off to conserve bat-
tery power.
1.2 Features

1.3 Names and Functions of Parts
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1.3 Names and Functions of Parts
Relative-measurement
mode
Front Panel
Operating Keys
Display
Strap installation
Slot
Relative-measurement
indicator
Measurement
wavelength
Display
Battery mark
Auto power save mark
Maximum, Minimum, Average
Range
Main display
Sub display

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1.3 Names and Functions of Parts
Operating Keys
POWER Turns ON/OFF power to the 3664.
Power ON: Hold down the key for approximately 2 seconds to
turn the power ON (auto-power-save function ON).
Hold down the key for approximately 5 seconds to
turn the power ON and the auto-power-save function
is turned OFF.
Power OFF:Hold down the key for approximately 1 second to turn
the power OFF.
λSets the measurement wavelength to the preset wavelength.
REL Switches between optical-power measurement mode, relative-
measurement mode (measured-value basis) and relative-mea-
surement mode (input-value basis).
RANGE Switches between auto range and manual range.
SET Moves to the setting edit screen. "SEt" appears on the screen.
Moves the digit to edit the setting (the digit blinks) during setting
edit.
SAVE Confirms the setting during setting edit and returns the meter to
measurement mode.
W/dBm
▼
Switches the unit of the reading between "W" and "dBm." In rela-
tive-measurement mode, the unit is switched between "W" and
"dB."
Decreases the number during setting edit.
MAX/MIN/AVE
▲
Switches the value to be displayed between the measurement,
maximum, minimum, and average value.
Increases the number during setting edit.

1.3 Names and Functions of Parts
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Upper Panel
Analog output terminal
Connect the L9094 OUTPUT CORD
included among the accessories to
this terminal. Output signals from the
optical sensor are converted to a volt-
age and output from this terminal.
AC-adapter terminal
Connect the 9445-02 or 9445-03 AC
ADAPTER included among the accesso-
ries to this terminal. When the AC adapter
is used, power is supplied to the 3664 from
a commercial power supply.
Optical-sensor 
terminal
Connect an optional
optical sensor to this
terminal.
Bottom Panel
USB terminal
Connect a USB cable to this terminal.

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1.3 Names and Functions of Parts

2.1 Attaching the Strap
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Use the strap to carry the 3664 power meter or hang it on a hook.
Measurement Preparations 2
2.1 Attaching the Strap
Be sure to attach the strap to the 3664 power meter in place (2 loca-
tions) properly. If the strap is not properly attached, the meter may drop
and be broken.
1. Insert each end of the Strap through
an installation slot on the instrument.
2. Feed each end of the Strap through its
clasp.
3. Feed each end through its stopper.
Confirm that the strap is not
slackened or twisted.
Model 3664

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2.2 Supplying Power
2.2.1 Using the AC Adapter
2.2 Supplying Power
• Use only the specified Model 9445-02 AC ADAPTER. AC
adapter input voltage range is 100 to 240 VAC (with ±10%
stability) at 50/60 Hz. To avoid electrical hazards and dam-
age to the instrument, do not apply voltage outside of this
range.
• Turn the instrument off before connecting the AC adapter
to the instrument and to AC power.
To avoid damaging the cord, grasp the plug, not the cord, when unplug-
ging it.
1. Connect the output plug of the AC
adapter to the AC-adapter terminal.
2. Connect the AC adapter to an AC
outlet.
AC Adapter Connection Terminal
• When the AC adapter is connected and the battery is installed,
the AC adapter is used. In case of power outage, the 3664 is
automatically switched to the battery drive.
• Make sure the power is turned off before connecting or discon-
necting the AC adapter.

2.2 Supplying Power
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2.2.2 Using the Batteries
Do not mix old and new batteries, or different types of batter-
ies. Also, be careful to observe battery polarity during instal-
lation. Otherwise, poor performance or damage from battery
leakage could result.
• The “ ” indicator appears when battery voltage becomes low.
Replace the batteries as soon as possible.
• Do not use other than the specified type of batteries (LR6 alka-
line batteries). Using manganese batteries will result in a
shorter operating time than when using alkaline batteries.
• The 3664 power meter runs on battery or AC power. When the
AC adapter is connected and the battery is installed, the AC
adapter is used.
1. Confirm that the power to the 3664 is
turned OFF.
2. Disconnect all cables.
3. Turn over the 3664 and loosen the
screw on the battery cover.
4. Remove the battery cover.
5. Insert the four AA alkaline batteries
(LR6) into the battery case, noting the
correct polarity. (When replacing the
batteries, replace all of them.)
6. Place the battery cover back on, and
tighten the screw.
Tools and materials: 
Four AA alkaline batteries (LR6) and a Phillips screwdriver
Screw

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2.3 Connecting the Optical Sensor
Insert an optical sensor, with the surface marked with an arrow fac-
ing upward, into the optical-sensor terminal of the 3664.
2.3 Connecting the Optical Sensor
• Use only the specified optical sensor. Using a non-specified sen-
sor may result in incorrect measurements due to poor connec-
tion or other reasons.
• To prevent damage to the instrument and sensor, never connect
or disconnect a sensor while the power is on, or while the sensor
is connected around a conductor.
• To avoid damaging the sensor cable, grasp the plug, not the
cable, when unplugging it.
• To avoid ensuring accurate measurements, avoid dropping or
applying any physical shock to the optical sensor.
Grasp the connector.
Optical Sensor
Optical Sensor Connection Terminal
Always grasp the connector with the arrow to connect or discon-
nect the optical sensor. (You must grasp the connector to discon-
nect the sensor.)