Nikon D-LEDI User manual

M751E 20.11.NF.2 (1/2)
*M751EN02*
D-LEDI
Fluorescence LED Illumination System
Instructions

Introduction
i
Introduction
Thank you for purchasing a Nikon product.
This instruction manual is intended for users of the Nikon D-LEDI Fluorescence LED Illumination System.
To ensure correct usage, read this manual carefully before operating this product.
• No part of this manual may be reproduced or transmitted in any form without prior written permission from
Nikon.
• The contents of this manual are subject to change without notice.
• The equipment described in this manual might differ from the actual product in its appearance.
• Although considerable effort has been made to ensure the accuracy of this manual, errors or
inconsistencies might remain. If you notice any points that are unclear or incorrect, please contact your
local Nikon representative.
• Some of the equipment described in this manual may not be included in the set you have purchased.
• If you intend to use any other equipment with this product, read the manual for that equipment too.
• If the equipment is used in a manner not specified by the manufacturer, the protection provided by the
equipment might be impaired.
• Products and brand names described in this manual are trademarks or registered trademarks of their
respective companies.

Contents
ii
Contents
Introduction................................................................................................................................................i
Safety Precautions .................................................................................................................................. iv
Meaning of symbols used on the product description................................................................... iv
WARNING and CAUTION symbols .............................................................................................. iv
WARNING ................................................................................................................................v
CAUTION ................................................................................................................................ vi
Handling of This Product ........................................................................................................................ vii
Chapter 1 Names of Parts .............................................................................................................................1
1.1 Composition Units ..........................................................................................................................1
1.2 Operation Screen of the Remote-Control Pad ...............................................................................2
1.3 Recommended Fluorescence Filter Cubes....................................................................................3
Chapter 2 How to Use the Parts ...................................................................................................................5
2.1 Controlling the Power.....................................................................................................................5
2.1.1 Turning the Main Power On or Off ....................................................................................5
2.1.2 Turning the D-LEDI Main Body On or Off .........................................................................5
2.2 Turning the LEDs On or Off and Controlling Illumination...............................................................6
2.2.1 Operation in SYNC Mode (Simultaneous Illumination Control Mode)..............................7
2.2.2 Operation in ASYNC Mode (Individual Illumination Control Mode) ..................................8
2.3 Using Function (Fn) Buttons ........................................................................................................10
2.4 Using the MENU Screen ..............................................................................................................12
2.4.1 Switching Illumination Control Modes.............................................................................12
2.4.2 Enabling External Trigger ...............................................................................................13
2.4.3 Selecting When to Turn Off the Display..........................................................................13
2.4.4 Enabling or Disabling the Beep Sound...........................................................................14
2.4.5 Selecting the Number of Steps for the Illumination Control Dial ....................................14
2.4.6 Assigning a Function to the Fn Button............................................................................15
2.5 Operation from NIS-Elements ......................................................................................................16
2.6 Operation When the Ti2 Series Is Connected..............................................................................17
Chapter 3 Troubleshooting .........................................................................................................................18
Chapter 4 Maintenance and Storage of the Product ................................................................................19
4.1 Cleaning the Product....................................................................................................................19
4.1.1 Cleaning the Main Body Exterior Parts and the Remote Control Pad............................20
4.1.2 Decontaminating the Product .........................................................................................20
4.2 Storage of the Product .................................................................................................................20
4.3 Periodic Inspections (Charged)....................................................................................................20
Chapter 5 Assembling and Connection of the System............................................................................21
5.1 Attaching the Product to an Epi Fluorescence Attachment..........................................................22
5.2 Connecting the Remote Control Pad ...........................................................................................23
5.3 Connecting the AC Adapter..........................................................................................................23
5.4 Connecting Cables.......................................................................................................................24
5.4.1 Connecting a PC (USB Connector) ................................................................................24
5.4.2 Connecting the Ti2-E (CONTROL Connector)................................................................24

Contents
iii
5.4.3 Connecting an External Trigger Generation Device (TRIGGER Connector)..................25
5.5 System Configuration Diagram ....................................................................................................26
5.5.1 Ni-E + NI-CTLA System Configuration ...........................................................................26
5.5.2 Ni-U + NI-CTLB System Configuration ...........................................................................26
5.5.3 Ti2-E System Configuration ............................................................................................27
5.5.4 Other Microscopes..........................................................................................................28
Chapter 6 Specifications.............................................................................................................................29
6.1 Principles of Operation.................................................................................................................29
6.2 Physical Properties ......................................................................................................................29
6.3 Performance Properties ...............................................................................................................30
6.4 AC Adapter ...................................................................................................................................32

Safety Precautions
iv
Safety Precautions
Although this product is designed and manufactured to be completely safe during use, incorrect usage or
failure to follow the safety instructions provided may cause personal injury or property damage. To ensure
correct usage, carefully read this manual and the instruction manuals of products used together before using
the product. Be sure to read and observe the safety precautions described at the beginning of each manual.
Keep this manual handy for easy reference at all times.
Meaning of symbols used on the product description
Symbols that appear on the product indicate the need for caution at all times during use. Always refer to the
instruction manual and read the relevant instructions before manipulating any part to which the symbol has
been affixed.
Symbol Contents
CAUTION (Photobiological safety)
This symbol is attached near the LED
light-emitting hole of the fluorescence LED
illumination system main body to call the
attention to the following:
• Photobiological risk group classification of
the light emission
• Do not look into the light emission.
For details, refer to and check the WARNING
“Photobiological safety” and WARNING “Do
not look into the LED light.”
Manufacturer:
NIKONCORPORATION
ShinagawaIntercity Tower C,
2-15-3,Konan, Minato-ku, Tokyo
108-6290Japan
Importerinthe European Economic Area:
EC REP
NIKONINSTRUMENTS
EUROPEB.V.
Tripolis100, Burgerweeshuispad 101,
1076ER Amsterdam, The Netherlands
WARNING
RISKGROUP3
AVERTISSEMENT
GROUPE DE RISQUE3
IEC 62471
WARNING and CAUTION symbols
Safety instructions in this manual are marked with the following symbols to highlight their importance. For your
safety, always follow the instructions marked with these symbols.
Symbol Contents
WARNING Disregarding instructions marked with this symbol may lead to serious injury or death.
CAUTION Disregarding instructions marked with this symbol may lead to injury or property
damage.
In addition to the above, the following symbols are used in this manual:
Symbol Description
This symbol indicates instructions required to avoid malfunction and failure of the
product and damage to the equipment or parts.
This symbol indicates necessary information and tips on the use of this product.
CAUTION
symbol

Safety Precautions
v
! WARNING
1. Do not disassemble this product.
Do not disassemble this product. Doing so may result in electric shock or failure. Any failure or
damage caused by such action will not be covered under warranty.
Never attempt to disassemble any part of this product unless you are instructed to do so in this
manual. If there is a problem with this product, contact your Nikon representative.
2. Use the AC adapter supplied with the product.
An AC adapter is used to supply power to this product. Be sure to use the AC adapter supplied with
this product.
The AC adapter input is rated for 100-240 V AC, 50/60 Hz. It can be connected to an AC socket
with various voltages. However, do not use this product in an environment where the supply voltage
varies widely.
3. Use the specified power cord.
Use only the specified power cord when connecting the AC adapter to an AC power supply.
Use of any other power cord may cause malfunction or overheating of this product, or fire. This
product is classified as a Class I electric shock protection device, designed to be connected to an
AC socket that has a protective ground terminal.
• Refer to Chapter 6, “Specifications” for the power cord specification.
• When plugging in the power cord, to minimize the risk of electrocution, make sure that main
power switch of the device is off (set to the “O” side).
4. Ultraviolet light radiation
When lit, this product radiates ultraviolet light that can damage the eyes and skin. Do not view light
coming from the product. Direct viewing of the light might result in blindness.
5. Do not block the vents on the product.
Ensure that the vents on the top and bottom of the main body of the product remain unobstructed.
Do not place objects on the project, and do not cover it with anything. Doing so may inhibit heat
dissipation and cause overheating.
6. Photobiological safety
This product is designed and manufactured in compliance with the “Photobiological safety of lamps
and lamp systems” (IEC62471) specified by IEC.
The photobiological safety for the light emitted from this product is classified in the following risk
groups:
The following table shows the distance (hazard distance) from the aperture when the risk group
classification is the Exempt Group, which does not cause photobiological hazards:
Risk group classification Hazard distance
UV hazard Risk group 3 0.9 m or more
Retinal blue-light hazard Risk group 2 4.1 m or more
7. Do not look into the LED light.
A WARNING label indicating photobiological safety (as shown below) is attached near the
light-emitting hole of this product (see the figure in Chapter 1, “Names of Parts” for the location of
the label) to call the attention to the following:
• When the LED is turned on, a strong light is emitted from the light-emitting hole. Never look into
the LED while the LED is turned on. LED illumination is hazardous to your eyes.
WARNING
RISK GROUP3
AVERTISSEMENT
GROUPE DE RISQUE3
IEC 62471
WARNING label

Safety Precautions
vi
! CAUTION
1. Shut down the power
When you assemble or clean this product, or plug or unplug cables, to minimize the risk of
electrocution or product failure, make sure that the main power switch of the main body is off (set to
the “O” side) and the power cord of the AC adapter is disconnected from the power socket.
When plugging in the AC adapter, make sure that the power switch of the main body is off (set to
the “O” side).
2. Do not allow this product to become wet. Do not allow any foreign material to enter this
product.
Do not allow this product to come into contact with water or any chemical solution. Spilling water o
r
chemical solution over this product may short-circuit the product and cause failure or overheating.
Similarly, if any foreign material enters the product, the product may short-circuit.
In the event that water or chemical solution is spilled over the product, immediately turn off the main
power switch (set it to the “O” side), and then disconnect the AC adapter (at this point, pay attention
not to touch the product with wet hands). Then, wipe the moisture off the product by using a dry
cloth, etc.
In the event of ingress of water or foreign matter, stop using this product and contact your nearest
Nikon representative.
3. Do not place objects on the product.
Do not place any objects on the product.
In particular, placing a heavy object may cause deformation, damage, or failure of this product.
Never place an object on the product as it may also fall and cause injury.
4. Do not turn on the product while it is covered.
Do not turn on the product while it is covered (with a cover or cloth, for example). Doing so may
inhibit heat dissipation, leading to malfunction or fire due to overheating. Additionally, do not cover
this product with a cloth, etc., during operation. Doing so may raise the temperature inside the
product, and lead to failure.
5. Cautions when assembling the product
When attaching this product to an epi fluorescence attachment or microscope system, be careful
not to injure your fingers or hands.
6. Cautions when cleaning the product
• Do not attempt to clean any parts if you are not instructed to do so in this manual. In particular,
do not clean the optical components inside the device from the light-emitting hole. Doing so may
affect the accuracy and performance of this product.
• When cleaning this product, do not use organic solvent (such as alcohol, ether, or thinner) on
coated parts, plastic parts, or printed parts. Use of such solvents may cause discoloration or
removal of printed characters.
• Note that the medicinal alcohol used for decontamination is highly flammable. Care must be
taken when operating the power switch in the presence of such chemicals, and pay special
attention to any potential fire hazards.
• Handle medicinal alcohol according to the precautions provided by the manufacturer.
• If organic solvent such as medicinal alcohol is used, make sure to wear fingerstalls or gloves to
avoid touching the solvent with bare skin.

Handling of This Product
vii
Handling of This Product
1. Handle this product with care.
This product is a precision optical instrument. Do not subject it to impact or strong vibration.
2. Electromagnetic environment
Nikon recommends evaluating the electromagnetic environment of the installation site before using this
product.
Do not use this product close to strong electromagnetic radiation sources (example: unshielded
intentional RF sources). They may interfere with the proper operation of this product.
This product emits weak electromagnetic waves. So as to avoid degrading the performance of precision
electronic devices, do not install this product near such devices. If TV or radio reception is affected, move
the TV or radio further from this product.
This product complies with requirements of EMC directive (2014/30/EU) and IVD directive (98/79/EC).
• Achieve electromagnetic compatibility to ensure satisfactory operation of the product.
This product is tested and in conformity with FCC regulations (FCC Part15 Subpart B: Radio
Frequency Device (commercial and industrial areas)).
• Use this product only in the commercial or industrial area. Using this product in the residential area
may affect other devices.
3. Installation and storage environment
This product is a precision optical device. Using or storing it in an improper location may result in a failure
or degraded precision. Refer to “6.2 Physical Properties” for the installation and storage environment. In
addition, observe the following conditions.
• Avoid high-temperature, high-humidity locations for installing or storing this product. Mold may occur
on the interior, or condensation may form on internal optical components, leading to failure or
degraded precision.
• Install this product in a location that is free of dirt, dust, vibration, and risk of liquid spillage
• Do not place and use this product in a closed space such as a locker or cabinet.
• Place this product at least 10 cm away from the surrounding walls
• Place this product in a place that allows for easy removal of the power cord from the AC inlet of the AC
adapter in the event of an emergency.
• For safety, if this product is not to be used for an extended period, unplug the power cord from the AC
power socket.
• When storing this product, keep it covered to avoid dust accumulation.
4. Fluorescence filter cube
• The excitation filter inside the fluorescence filter cube is subject to high intensity illumination, which,
over time, affects its filtering characteristics. Replace it periodically.
• High humidity may affect the filter characteristics. Do not use or store this product in a
high-temperature of high-humidity environment, and do not subject this product to sudden
temperature fluctuations as doing so might adversely affect the product. When the product is not in
use, we recommend that you store it together with drying agents inside a desiccator or hermetic
container.

Handling of This Product
viii
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Chapter 1 Names of Parts
1
Chapter 1 Names of Parts
1 Names of Parts
The following section illustrates the names of parts of this product.
Attaching the product and making connections
For how to attach the product to a microscope or illumination device and how to make connections between the
devices, refer to Chapter 5, “Assembling and Connection to the Product”.
1.1 Composition Units
Main body of the D-LEDI fluorescence LED illumination system
This device complies with Part 15 of the FCC Rules.
Operati on is subject to the fol lowing two consit ions:
(1) this device may notc auseharmful interference, and
(2) this device must accept any interference received,
includi ng interference t aht may cause undesir ed operation.
CAN ICES-3 (A)/NMB- 3(A)
D-LEDI
USB
REMOTE CONTROL
DC
TRIGGER
MADE IN JAPAN
TOKYO JAPAN
Manufacturer:
NIKON CORPORATION
Shinagawa Intercity Tower C,
2-15-3, Konan, Minato-ku, Tokyo
108-6290 Japan
Importer in the European Economic Area:
EC REP
NIKONINSTRUMENTS
EUROPE B.V.
Tripolis 100, Burgerweeshuispad 101,
1076 ER Amsterdam, The Netherlands
4N75
INSPECTION
EQUIPMENT
R-R-NEc-SD-LEDI
INPUT
12VDC , 3 .3A
WARNING
RISK GROUP3
AVERTISSEMENT
GROUPE DE RISQUE3
IEC 62471
Note 1: The D-LEDI main body does not have a cooling fan.
D-LEDI-C Remote control pad
Fn
SELECT MENU
PUSH
ON/OFF
PUSH
ON/OFF
SE
L
E
C
T
Fn
DISP
ON OFF
AC adapter and power cord (Note 2)
Standby button
SELECT buttonMENU button
Fn button
Indicator
Power cord connecto
r
DC connection cord
Vents (top and bottom) (Note 1)
TRIGGER connecto
r
(for connecting to
external trigger signals)
Main power
switch
CONTROL connector
(for connecting to the Ti2-E)
USB connecto
r
(for connecting
to a PC)
Light-emitting hole
(coupling hole)
REMOTE connector
(for the remote control pad)
DC connector
(for connecting to
the AC adapter)
WARNING label
(Risk Group 3)
Mount fixing screws
(left and right)
Product name plate
Europe importe
r
indication
DISP switch
Pillar-attaching tapped holes
(top and bottom)
(M5, 8 mm deep)
Displa
y
Illumination control dial
Cable
Product name plate
(on the back)
Power cord
Note 2: The power cord differs depending on the shipment destination.

Chapter 1 Names of Parts
2
1.2 Operation Screen of the Remote-Control Pad
The illumination control dial on the remote control pad is used to turn the illumination on or off and to adjust
the brightness.
The remote control pad has a large organic EL display (OLED), which shows the on/off status and brightness
of each LED at a glance.
Illumination control screen
A screen for showing the on/off status and brightness of an LED.
Use the MENU screen to switch between the SYNC mode (simultaneous illumination control mode) and
ASYNC mode (individual illumination control mode).
SYNC mode (simultaneous illumination control mode)
External trigger usage indicator
If an external trigger is used to control the illumination,
LIT
, which indicates
that the illumination is on, is displayed when at least one LED is on.
ASYNC mode (individual illumination control mode)
MENU screen
A screen used for specifying various settings for this product. Press the MENU button to display this screen.
To return to the illumination control screen, either press the MENU button again or select EXIT at the bottom
of the menu.
Operation sound of the remote control pad
Pressing a button on the remote control pad generates an operation sound.
You can enable or disable the operation sound in the MENU screen (see “2.4.4”).
Illumination control mode
SYNC
: SYNC mode (simultaneous
illumination control mode)
A
SYNC
: ASYNC mode (individual
illumination control mode)
External trigger status
TRIGGER
appears when a trigger
input is used.
Brightness value
0 to 100
Bar graph
Only a frame is displayed
when the illumination is off.
Bar graph
Only a frame is displayed
when the illumination is off.
Brightness value
0 to 100
LED
wavelength
On/off status of each LED
LIT
appears when the
illumination is on.
Selected (highlighted)
Displayed highlighted
Selected (highlighted)
Use the Illumination
control dial to move
between the items
Use the SELECT button
to apply
Setting
Item
On/off status
LIT
appears when the
illumination is on.

Chapter 1 Names of Parts
3
1.3 Recommended Fluorescence Filter Cubes
A fluorescence filter cube is attached to the epi fluorescence attachment included with this product.
• C-LED385 Fluorescence filter cube
• C-LED470 Fluorescence filter cube
• C-LED525 Fluorescence filter cube
• C-LED625 Fluorescence filter cube
UV-2A
C-FL-C
EX 330-380
DM 400
BA 410
Fluorescence filter cube
List of the fluorescence filter cubes
Model name Excitation filter Dichroic mirror Barrier filter Applicable LED
C-LED385 EX400/40 DM425 BA478/85 385 nm
C-LED470 EX470/40 DM495 BA525/50 470 nm
C-LED525 EX531/40 DM562 BA593/40 525 nm
C-LED625 EX620/60 DM660 BA700/75 625 nm
Barrier filter
Dichroic mirror
(inside)
Excitation filte
r

Chapter 1 Names of Parts
4
Filtering characteristics of the fluorescence filter cubes
C-LED385
0
10
20
30
40
50
60
70
80
90
100
350 400 450 500 550 600
nm
EX400/40 DM425 BA478/85
C-LED470
0
10
20
30
40
50
60
70
80
90
100
400 450 500 550 600
nm
EX470/40 DM495 BA525/50
C-LED525
0
10
20
30
40
50
60
70
80
90
100
450 500 550 600 650
nm
EX531/40 DM562 BA593/40
C-LED625
0
10
20
30
40
50
60
70
80
90
100
550 600 650 700 750
nm
EX620/60 DM660 BA700/75

Chapter 2 How to Use the Parts
5
Chapter 2 How to Use the Parts
2 How to Use the Parts
2.1 Controlling the Power
The main power switch on the back side of the D-LEDI main body and the standby button on the right side of
the remote control pad are used to control the power of this product.
2.1.1 Turning the Main Power On or Off
Use the main power switch on the back of the D-LEDI main body to control the main power of this product.
Turning the main power on or off
Main power switch Main power
Set to the “I” side. The main power is turned
on.
Set to the “O” side. The main power is turned
off.
In normal operation, keep the main power switch on,
and use the standby button on the remote control pad
to turn the D-LEDI on or off.
D-LEDI
4N75
INSPECTION
EQUIPMENT
R-R-NEc-SD-LEDI
INPUT
12VDC ,3.3 A
830001
Thisdevice complies with Part 15 of the FCC Rules.
Operation is subj ect to the following t wo consitions :
(1)this device may not cause harmful interference, and
(2) this device must accept any interference received,
including inter ference taht may caus e undesired opera tion.
CAN ICES-3(A)/ NMB-3(A)
MADEIN JAPAN
TOKYO JAPAN
USB
REMOTE CONTROL
DC
TRIGGER
Turning the main power off during assembling or connection
When attaching or connecting this product, set the main power switch to the “O” side to turn off the main power.
Standby state
Standby refers to a state in which only the main power is on, while the D-LEDI main body is turned off.
To turn off this product in normal operation, press and hold the standby button on the remote control pad to put
this product in a standby state.
2.1.2 Turning the D-LEDI Main Body On or Off
To turn the D-LEDI on or off, check that the main power switch is on, and then press the standby button on the
remote control pad.
Turning the D-LEDI main body on or off
Standby button Power of the D-LEDI
main body
Momentarily press Turned on
Press and hold Turned off
PUSH
ON/OFF
SE
L
E
C
T
Fn
When the D-LEDI main body is turned on, the display of the remote control pad lights up.
Saving the settings in the standby state
If you use the standby button to turn off the product, the brightness and other settings at that time are saved
automatically. If you use the standby button to turn on the product, the settings are restored.
Turning the display on or off
The display of the remote control pad can be turned off by using the DISP switch on the left side.
You can also configure in the MENU screen to automatically turn off the display after the operation (see 2.4.3).
Main power switch
Standby button

Chapter 2 How to Use the Parts
6
2.2 Turning the LEDs On or Off and Controlling Illumination
This product has built-in high-power LEDs with four industry-standard wavelengths: 385 nm, 475 nm, 550 nm,
and 621 nm. The light beams from each of the LEDs are synthesized by a dichroic mirror inside the device to
be output from the light-emitting hole on the mounting section.
Applications suitable for illumination from this product include fluorometric quantification experiments and
time-lapse microscopic examination.
Simultaneous/individual illumination control
This product allows simultaneous on/off and brightness control of all the LEDs as well as individual on/off and
brightness control of each wavelength LED.
Saving and restoring settings
The brightness of each LED can be registered in the memory of this system and can be restored.
Turning LEDs on or off
The illumination control dial on the remote control pad is used to turn the illumination on or off and control
brightness.
Turning LEDs on/off and illumination control
(brightness adjustment)
Illumination
control dial LED
Press Switches the LEDs
on or off.
Turn The brightness of the
lit LEDs changes.
Fn
SELECT MENU
PUSH
ON/OFF
Beep sound when turning LEDs on or adjusting their brightness
A beep sounds when you turn LEDs on or when the upper or lower limit of the brightness range is reached.
Using the illumination control dial
The Illumination control dial has 24 clicks in one rotation. Each click changes the brightness value. The number o
f
steps for each click can be changed in the MENU screen. Refer to “2.4.5 Selecting the Number of Steps for the
Illumination Control Dial”.
LED illumination control modes
In this product, you can turn the built-in four-color LEDs on or off and control their brightness in two modes:
SYNC mode (simultaneous illumination control mode)
• Turns the four LEDs on or off and controls their brightness simultaneously.
• Maintains the same brightness value for all LEDs.
• In the SYNC mode, the
SYNC
icon is displayed in the upper right of the display.
ASYNC mode (individual illumination control mode)
• Turns the four LEDs on or off and controls their brightness individually.
• Multiple lit LEDs can be selected to perform on/off and brightness control operation in a ganged manner.
• When you control the brightness of multiple LEDs, luminance balance between all LEDs set in ASYNC
mode is maintained.
• In the ASYNC mode, the
A
SYNC
icon is displayed in the upper right of the display.
Switching between the illumination control modes
Use the MENU screen to switch between illumination control modes.
For details, refer to “2.4.1 Switching Illumination Control Modes.”
Illumination control dial

Chapter 2 How to Use the Parts
7
2.2.1 Operation in SYNC Mode (Simultaneous Illumination Control Mode)
In the SYNC mode, you can turn the four LEDs on or off and control their brightness simultaneously.
Turning on or off
Press the illumination control dial to turn all the LEDs
on or off simultaneously.
Turning all the LEDs on or off
Illumination
control dial All LEDs
Press Illumination is switched
on or off.
When the illumination is on, it is indicated by the
LIT
icon to the left of “ALL LEDS”.
Beep sound emitted when turning LEDs on or of
f
A beep sounds when you turn LEDs on or off.
Controlling the brightness
By turning the illumination control dial, you can
control the brightness of all the LEDs simultaneously.
Controlling the brightness of all the LEDs
Illumination
control dial All LEDs
Turn The brightness of all the
LEDs changes.
The brightness is controlled in 101 steps from 0 to
100. The current brightness is indicated by a value
and bar graph on the display.
Number of steps of the illumination control dial
When the illumination control dial is turned to the click-stop position, the number of steps for each click changes
the brightness value. The number of steps can be set between 1 to 5. The default setting for the number of steps
is “5”.
OFF
ON
Press the illumination
control dial.
LIT
appears when the
illumination is on.
Bar graph
Brightness
value
Turn the illumination
control dial.

Chapter 2 How to Use the Parts
8
2.2.2 Operation in ASYNC Mode (Individual Illumination Control Mode)
In the ASYNC mode, you can turn the four LEDs on or off and control their brightness individually.
When you control the brightness of multiple LEDs, you can adjust their brightness while the luminance
balance is maintained.
Selecting one or more LEDs to be controlled
To use the ASYNC mode to turn LEDs on or off and
control their brightness, select one or more LEDs you
want to control on the display. The selected LEDs are
displayed highlighted.
In the ASYNC mode screen, pressing the SELECT
button switches through LED1 to LED4 in this order.
When multiple LEDs are turned on, pressing the
SELECT button after switching through 1 to 4 selects
all the lit LEDs.
Selecting the LEDs
SELECT button Selected LED
Press
(Individual illumination
control mode)
Switches the LED selection
(1 →2 →3 →4 →
the multiple lit LEDs)
Beep sound emitted when selecting LEDs
A beep sounds when you select LEDs.
The pitch of the beep increases as the number of
LEDs increases.
SELECT
Turning LEDs on or off
Select the desired LEDs on the display, and then
press the illumination control dial. The selected LEDs
are turned on or off.
Turning the selected LEDs on or off
Illumination
control dial Selected LEDs
Press Illumination is switched on
or off.
Illumination is indicated by the
LIT
icon to the left of
each wavelength on the display.
A beep sounds when you turn LEDs on.
Press SELECT
to move the LED
selection
LED1
LED2
LED3
LED4
Lit LEDs (Ex.: LED2 and LED3)
LED1 is selected (turned off)
LED1 is
turned on
Press the illumination
control dial.
LIT
appears when the
illumination is on.

Chapter 2 How to Use the Parts
9
Controlling the brightness
Select the desired LED on the display, and then turn
the illumination control dial. The brightness of the
selected LED can be adjusted.
Controlling the brightness of a selected LED
Illumination
control dial Selected LED
Turn The LED brightness
changes.
The brightness is controlled in 101 steps from 0 to
100. The current brightness is indicated by a value
and bar graph on the display.
Number of steps of the illumination control dial
When the illumination control dial is turned to the click-stop position, the number of steps for each click changes
the brightness value. The number of steps can be set between 1 to 5. The default setting for the number of steps
for a click is “5”.
Controlling the brightness of multiple LEDs
If multiple LEDs are selected on the display, you can
turn the selected LEDs on or off and control their
brightness.
If there is any difference among the brightness values
of the multiple LEDs, the brightness of the LEDs can
be controlled in a ganged manner to maintain their
relative brightness.
Controlling the brightness of selected LEDs
Illumination
control dial Selected LEDs
Turn The LED brightness
changes.
The brightness is controlled in 101 steps from 0 to
100. The current brightness is indicated by a value
and bar graph on the display.
SELECT
Maintaining the brightness balance
When multiple LEDs are selected, the ratio of the brightness value for each LED is saved. If this status is
maintained, the brightness values are controlled while maintaining the brightness balance among the LEDs.
•When the brightness value of the brightest LED reaches its maximum brightness value (100), its brightness
will not go any higher. However, turning the illumination control dial further increases the brightness values of
the other LEDs until they all reach their maximum brightness value (100).
•If the illumination control dial is turned to decrease the brightness when all LEDs maintain the brightness
values (100), the minimum value saved for the brightness of the LED will get affected first.
•Similarly, when reaching the minimum brightness value (0), the brightness values are controlled while
maintaining the brightness balance among the LEDs so that the brightness values can be decreased until all
the LEDs reach the minimum brightness value (0).
Turn the illumination
control dial.
Brightness value and bar graph
Press SELECT
to select the LEDs
Select (multiple) lit LEDs.
Turn the illumination
control dial.
Control the brightness of multiple
LEDs simultaneously.

Chapter 2 How to Use the Parts
10
2.3 Using Function (Fn) Buttons
You can assign one of the following four functions to the Fn button on the remote control pad:
• Saving and restoring the illumination status
• Turning LEDs on or off
• Turning all the LEDs on or off
(maintaining the on status)
• Enabling or disabling the external trigger
Saving and restoring the illumination status
In the MENU screen, when “FN “is set to
“RECORD_AND_CALL_THE_INTENSITY -VALUE,”
you can press the Fn button to save the illumination
status at that time and restore it at any given time.
Saving and restoring the illumination status
Fn button Illumination status
Press and hold Saves the illumination
status.
Momentarily press Restores the Illumination
status.
Turning LEDs on or off
In the MENU screen, when “FN” is set to
“TURN_ON_AND_OFF_THE_LED”, you can press
the Fn button to switch the LED on and off.
The status for both the SYNC and ASYNC modes
will be identical with each illumination control dial
being pressed.
Turning LEDs On or Off
Fn button Illumination status
Press
Switches the LED
on and off
in the current mode
Fn
SELECT MENU
PUSH
ON/OFF
Fn button
(Function button)