Konica Minolta CR-20 User manual


CR-20
Instruction Manual
Please read before using the instrument.

2
■Safety Symbols
The following symbols are used in this manual and on the instrument to prevent accidents
that may occur as result of incorrect use of the instrument.
Denotes a sentence regarding a safety warning or note.
Read the sentence carefully to ensure safe and correct use.
Denotes a prohibited operation.
The operation must never been performed.
Denotes an instruction.
The instruction must be strictly adhered to.
Denotes a prohibited operation.
Never disassemble the instrument.
Denotes an instruction.
Always disconnect the AC adapter from the AC outlet.
This symbol indicates alternating current (AC).
This symbol indicates direct current (DC).
This symbol indicates class II protection against electric shock.
Notes on this Manual
• Copying or reproduction of all or part of the contents of this manual without the
permission of KONICA MINOLTA is strictly prohibited.
• The contents of this manual are subject to change without prior notice.
• 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
a KONICA MINOLTA-authorized service facility.
• KONICA MINOLTA will not accept any responsibility for accidents that arise from the
use of the instrument or products used other than as directed in this manual.
Official names for applications and the like used in this manual
(Wording used in text) (Official name)
Windows, Windows 10 Microsoft®Windows®10 Pro Operating System
Windows, Windows 11 Microsoft®Windows®11 Pro Operating System
Trademarks
• Microsoft, Windows, Windows 10, and Windows 11 are registered trademarks of
Microsoft Corporation in the United States and/or other countries.
Other company and product names included in this manual are trademarks or registered
trademarks of their respective companies.

3
Safety Precautions
To ensure correct use of this instrument, read the following points carefully and adhere to them.
After you have read this manual, keep it in a safe place where it can be referred to anytime a question arises.
WARNING (Failure to adhere to the following points may result
in death or serious injury.)
Do not use the instrument in places where flammable or combustible gases
(gasoline, etc.) are present. Doing so may cause a fire.
Always use KONICA MINOLTA’s optional accessory AC adapter (AC-A308) or
USB bus power AC adapter (AC-A305J,K,L,M) connected to an AC outlet of the
rated voltage and frequency 100-240 VAC (50/60 Hz). If an AC adapter other than
those specified by KONICA MINOLTA is used, or if the adapter is connected to an
unsupported voltage, it may result in damage to the adapter, fire, or electric shock.
If the instrument will not be used for a long time, disconnect the AC adapter
power plug from the AC outlet. Accumulated dirt or water on the prongs of
the AC adapter’s plug may cause a fire and should be removed. Clean off
any dirt or water on the prongs of the AC adapter’s plug before use.
Do not insert or disconnect the AC adapter with wet hands. Doing so may
cause electric shock.
Do not disassemble or modify the instrument or the AC adapter. Doing so
may cause a fire or electric shock.
The instrument should not be operated if it is or the AC adapter is damaged, or if smoke or odd
smells occur. Doing so may cause a fire. In such situations, turn the power OFF immediately,
disconnect the AC adapter power plug from the AC outlet (or remove the batteries if using
battery power) and contact the nearest KONICA MINOLTA-authorized service facility.
Take special care not to allow liquid or metal objects to enter the instrumentor the AC adapter.
Doing so may cause a fire. Should liquid or metal objects enter the instrument, turn the power OFF
immediately, disconnect the AC adapter power plug from the AC outlet (or remove the batteries if
using battery power) and contact the nearest KONICA MINOLTA-authorized service facility.
Do not forcibly bend, twist or pull the power cord. Do not place heavy objects on, or damage or
modify the power cord. Doing so may damage the power cord and cause fire or electric shock.
Always disconnect the power cord by holding the power plug. Pulling the
power cord itself may damage it and cause fire or electric shock.
Firmly push the AC adapter power plug completely into the outlet. If the
power plug is not pushed completely in, it may cause a fire or electric shock.
Do not dispose of the batteries in a fire or charge, short-circuit, heat, or disassemble the
batteries. Doing so may cause the batteries to rupture or leak, which could result in fire or injury.
In the event that a battery leaks and the fluid comes into contact with your eye, do not rub your eye and wash
it with clean water, and then immediately consult a doctor. If the leaked fluid comes into contact with skin or
clothing, immediately rinse with water. In addition, stop using the instrument if one of its batteries has leaked.
Use a dedicated charger (of the specified type, model, etc.) to charge nickel-
metal hydride batteries. If charging conditions or a charger different from that
specified is used for charging, the battery may leak, overheat, or catch fire.
Correctly dispose of batteries used in the instrument. Batteries incorrectly disposed of may
short-circuit, overheat, and catch fire. This may lead to fire, injury, or burns. Battery disposal
methods vary depending on each municipality. Adhere to municipal instructions when
disposing of batteries, or give the batteries to your contracted waste disposal contractor.
Do not touch the batteries with wet hands. Doing so may result in electric
shock or a malfunction.
Do not look directly at the lamp. The lamp is extremely bright and emits
ultraviolet rays. Doing so may injure the eyes.
CAUTION
(Failure to adhere to the following points may result in
injury or damage to the instrument or other property.)
When using the AC adapter, provide an environment such that there is an outlet near the
instrument and the power plug of the AC adapter can be easily plugged or unplugged.
Take care not to pinch yourself on the areas of the instrument that open and
close. Doing so may result in injury.
Do not use any batteries other than those specified for the instrument. Do not
use a new battery and an old battery or batteries of different types together.
When loading the batteries into the instrument, ensure they are oriented
according to the polarity indication (positive + and negative -) on the instrument.
Otherwise, the batteries may break or leak, resulting in a fire or injury, or
contamination of the area.
Do not use the instrument if the sample surface aperture (measurement area)
is in the line of sight. Doing so may result in injury to the eye.
Take sufficient care when handling the target mask. The sample surface
aperture glass may become cracked, resulting in injury.
When cleaning the instrument, unplug the AC adapter power plug from the
outlet. Failure to do so may cause electric shock.

4
Thank you for purchasing this KONICA MINOLTA instrument.
This instrument is a lightweight, compact colorimeter for reflecting an object’s color. It was developed to provide colorimetry in a variety of industrial fields.
In addition, when used with the included PC application, data saved in the instrument can be displayed in a list and saved to the PC.
Introduction
Packing materials of the product
Be sure to keep all packing materials used for shipping the product (cardboard box, cushioning material,
plastic bags, etc.).
This instrument is a precision measuring instrument. When transporting the instrument to a service facility
for maintenance or for other reasons, be sure to use the packing materials to minimize shock or vibration.
If the packing materials are lost or damaged, contact a KONICA MINOLTA-authorized service facility.
Notes on Use
Always use the instrument correctly. If the instrument is used in a manner not described in
this instruction manual, it may cause injury, electrocution, or damage to the instrument itself.
▌Operating Environment
Use the instrument at an ambient temperature between 0°C and 40°C and maximum relative
humidity 85% for temperatures up to 35°C decreasing linearly to 66% relative humidity at 40°C
with no condensation. Be sure to use the instrument within this range.
• If the operating humidity range is exceeded, errors may occur for measurements of
dark colors. Do not use it in areas of rapid temperature changes.
• Do not leave the instrument in direct sunlight or near heat sources such as a stove. Doing so may cause
the internal temperature of the instrument to become much higher than the ambient temperature.
• Do not use the instrument in areas where dust, cigarette smoke, or chemical gases are
present. Doing so may cause deterioration in performance or the instrument may malfunction.
• Do not use the instrument near equipment that produces a strong magnetic field (such as speakers).
• The instrument is a pollution level 2 product (equipment that may cause temporary electrical
hazards due to contamination or condensation or products that are used in such an environment).
• Do not use the instrument at altitudes higher than 2,000 m.
• The optional AC adapter has been designed exclusively for indoor use. Do not short-
circuit the output plug. The AC adapter should never be used outdoors because rain or
other factors may result in a risk of electric shock or fire.
• Mount the instrument securely on the tripod to prevent it falling over or dropping.
Otherwise, injury or the damage of the instrument or surrounding objects may result.
▌Measurement
• When not using the instrument for a long period of time, blow off dirt or dust on the
receptor window with a blower before use.
• Take care to prevent dust and the like from entering the opening on the instrument
when using it upside down.
▌Target Mask
•
Do not touch the inside of the target mask, allow the mask to get dirty, or scratch the mask.
▌White Calibration Cap
• Do not allow the white calibration area to become scratched or dirty, such as from fingerprints.
▌Power Source
• When the instrument is not being used, turn the power OFF.
• This instrument can be used with AA batteries (alkaline or nickel-metal hydride
rechargeable batteries), with the AC adapter (AC-A308), or the USB bus power AC
adapter (AC-A305J,K,L,M). These adapters cannot be used for charging the nickel-
metal hydride rechargeable batteries in the instrument.
• Be sure to use only the AC adapter specified by KONICA MINOLTA and connect it to a 100-240
VAC (50/60 Hz) AC outlet. Use an AC power supply of the rated supply voltage (within ±10%).
• Do not connect the AC adapter to an overloaded electrical circuit. In addition, do not wrap or cover the
AC adapter with cloth or other material while in use. Doing so may cause an electric shock or fire.
▌Batteries
• When using dry cell batteries, we recommend using Maxell LR6 type alkaline dry
batteries. When using Ni-MH batteries, we recommend the use of Panasonic eneloop™
batteries.
▌System
• Do not subject the instrument to strong impacts or vibrations. Doing so may cause
deterioration in performance or the instrument may malfunction.
• Do not subject the sample surface aperture of the instrument to impact. When not in
use, make sure to attach the cap.
• The instrument may cause interference if used near televisions, radios, etc.
• When the instrument is exposed to strong external static electricity, the LCD may go blank or the
measurement result may not be displayed properly. If the instrument is communicating with an
external device, the communication may also be interrupted. In such cases, turn the power OFF
and then turn it ON again. If black smudges appear on the LCD, wait until they disappear naturally.
• When turning the power OFF and then ON again, wait several seconds after turning the
power OFF.

5
Introduction (Cont.)
▌Battery Backup
• The backup batteries are automatically charged when the instrument is operated, and
at full charge the memory content will be saved for 34 months under normal conditions.
In addition, the backup batteries will be fully charged after 27 hours if the instrument is
powered using batteries, the AC adapter, or USB bus power, regardless of whether the
instrument is turned ON/OFF. There is no need to worry about overcharging.
• Even if the backup batteries are depleted, the various settings and saved data will be
kept in the instrument. However, periodic backup of important data to another storage
medium using the included software is recommended.
Notes
• Do not attempt to replace the backup battery by yourself. Contact a KONICA MINOLTA-
authorized service facility instead.
Notes on Storage
• The instrument should be stored at a temperature between -20°C and 45°C with a
relative humidity of 85% or less (at 35°C) and no condensation. Do not store the
instrument in areas subject to high temperatures, high humidity, or sudden changes in
temperature, or in areas where condensation may occur, as these circumstances may
cause a malfunction. We recommended you store the instrument with a drying agent at
a temperature around 20°C.
• Do not leave the instrument inside a car such as in the cabin or the trunk. Otherwise,
the temperature and/or humidity may exceed the allowable range for storage during
midsummer or midwinter, resulting in a malfunction.
• Keep the packing materials used for shipment and use them to transport the
instrument. This material will protect the instrument from sudden changes in
temperature and from vibration and shock.
• Do not store the instrument in areas where dust, cigarette smoke, or chemical gases
are present. Doing so may cause deterioration in performance or the instrument may
malfunction.
• Be sure to keep all packing materials (cardboard box, cushioning material, plastic bags,
etc.). They can be used to protect the instrument during transportation to the service
facility for maintenance (re-calibration, etc.).
• If the sample surface aperture is dirty or scratched, measurement will not be performed
correctly. When the instrument is not in use, make sure to attach the protective cap
before storing.
• Be sure to store the target mask where it will be protected from becoming scratched or
exposed to dust.
• If the instrument will not be used for 2 weeks or more, remove the batteries. Otherwise,
the batteries may leak and damage the instrument.
• When the white calibration cap is not being used, put on the dedicated lid, and store it
in a location protected from external light.
Notes on Cleaning
• When the instrument is dirty, wipe it with a soft, clean dry cloth. Never use solvents
such as thinner or benzene.
• If there is dust or dirt on the receptor window, use a blower to blow it off or gently wipe it
with a soft, clean dry cloth. Never use solvents such as thinner or benzene. If you are
unable to remove dirt from the instrument or if the instrument becomes scratched,
contact a KONICA MINOLTA-authorized service facility.
• Contact a KONICA MINOLTA-authorized service facility if the inside of the target mask
or the inside of the integrating sphere becomes dirty.
• Should the instrument break down, do not try to disassemble or repair it by yourself.
Contact a KONICA MINOLTA-authorized service facility.
White Calibration Cap
• If the white calibration area becomes dirty, gently wipe the dirt off using a soft cloth. If
the dirt does not come off easily, wipe using a cloth soaked in commercial lens cleaner,
and then wipe using a cloth soaked in water before drying.
• If areas other than the white calibration area become dirty, gently wipe the dirt off using
a cloth soaked in water or soapy water. Never use solvents such as thinner or benzene.
Notes Take care so as not to scratch the white calibration area.
Disposal Method
• When disposing of the batteries used in this instrument, use tape or some other
material to electrically insulate the contacts. Contact with other metals may cause the
batteries to overheat, rupture, or catch fire.
• Make sure that the instrument, its accessories (and used batteries), and the packing
materials are either disposed of or recycled correctly in accordance with local laws and
regulations.

6
Table of Contents
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6
Safety Precautions··········································································································3
Introduction ·····················································································································4
Notes on Use ·············································································································4
Notes on Storage·······································································································5
Notes on Cleaning ·····································································································5
Disposal Method ········································································································5
Table of Contents············································································································6
Chapter 1 Before Using the Instrument·························································································7
Checking the Included Accessories················································································8
Standard Accessories································································································8
Optional Accessories ·································································································9
System Diagram ···········································································································10
Names and Functions of Parts ·····················································································11
Handling the Instrument································································································12
Attaching the Wrist Strap ·························································································12
Inserting Batteries····································································································13
Powering from a PC·································································································13
Connecting an AC Adapter ······················································································14
Attaching/Removing the Target Mask ······································································15
White Calibration Cap CR-A86 ················································································16
How to Strage ··········································································································17
Cleaning the Components ·······················································································18
Turning the Power ON/OFF·····················································································19
Display Language (When first turning the CR-20 ON)·············································20
Battery Warnings ·····································································································21
Points to Remember ·····································································································22
Instrument Operation/Display ··················································································22
Instrument Info Display ·································································································24
Checking CR-20 Information ···················································································24
Chapter 2 Measurement··············································································································25
Flow of Measurement ···································································································26
Part 1. Measurement···················································································································27
White Calibration ··········································································································28
Measurement················································································································29
Avg. Meas.····················································································································30
Switching Measurement Result Displays······································································31
Part 2. Instrument Settings··········································································································32
Various Settings/Instrument Settings············································································33
Mask Setting ············································································································33
Various Settings/Other Settings····················································································34
Language·················································································································34
Auto Off····················································································································35
Date and Time Setting ·····························································································36
Measurement Data Operations·····················································································37
Browse Data ············································································································37
Chapter 3 PC Application ············································································································38
Connecting to a PC·······································································································39
Connecting to/Disconnecting from a PC··································································39
When First Connecting to the PC ············································································40
Launching the PC Application··················································································42
Exiting the PC Application························································································42
Points to Remember ·····································································································43
PC Application Settings ···························································································43
PC Application Operation Screen ············································································44
Instrument Info Display ·································································································47
Checking CR-20 Information ···················································································47
Instrument Settings·······································································································48
Mask Setting ············································································································48
Environment Settings (Changing Instrument Settings)·················································49
Save Meas. Data ·····································································································49
Language·················································································································50
Auto Off····················································································································51
Date/Time ················································································································52
* Settings Only Configurable from the PC Application·············································53
PC Application (Measurement)····································································································56
White Calibration ··········································································································57
Measurement················································································································58
Measurement···········································································································58
Avg. Meas.···············································································································59
Save Meas. Data ·····································································································60
Measurement Result Display························································································61
Importing Measurement Data ··················································································61
Measurement Data Operations·····················································································62
Save to PC (Obtain Measurement Data Saved in Instrument)································62
Clear Inst. Data········································································································63
Copy to Clipboard ····································································································64
Chapter 4 Other Functions ··········································································································65
Connecting a Printer································································································66
Printing Measurement Data·····················································································67
Disconnecting from the Printer ················································································67
Chapter 5 Troubleshooting ··········································································································68
Memory Errors ··············································································································69
When not performing recovery ················································································69
Performing Recovery ·······························································································69
Error Messages ············································································································71
Checking for Malfunction ······························································································72
Chapter 6 Appendix ·····················································································································73
Dimensions ···················································································································74
Main Specifications·······································································································75
PC System Requirements ·······················································································75

7
Chapter 1 Before Using the Instrument
Chapter 1

8
Before Using the Instrument
Chapter 1
Checking the Included Accessories
This instrument can be used with the following standard accessories and optional accessories.
Memo The shape of some products may be different from those shown.
Standard Accessories
Verify that all of the following items are included.
■Target Mask
Approx. ø8 mm, w/ protective aperture glass plate
The target mask is used for aiming and correctly
measuring a measurement location.
Memo The color reader comes shipped from the factory
with the target mask already attached.
■USB Cable IF-A25
Used to connect the instrument to a PC.
When using the USB bus power AC adapter, power will be
supplied through the USB cable (IF-AF25).
■White Calibration Cap CR-A86
Used to perform white calibration.
Memo • When not in use, put on the dedicated lid and
store the cap.
■Wrist Strap CR-A73
Used to prevent users inadvertently dropping the
instrument.
■Protective Cap CR-A93
■Soft Case CR-A98
Holds the instrument and the white calibration cap.
■4 AA Batteries

9
Before Using the Instrument
Chapter 1
Checking the Included Accessories (Cont.)
Optional Accessories
Purchase the following separately sold accessories as necessary.
■USB Bus Power AC Adapter
AC-A305J,K,L,M (UBX305)
AC-A305J
(North and South America, Taiwan and Japan)
AC-A305K
(China)
AC-A305L
(Korea)
AC-A305M
(Europe and Singapore)
*Form differs according to region.
Input: 100-240 V 50/60 Hz 0.15 A
Output: 5 V 1.5 A
■AC Adapter AC-A308
The adapter is used to supply power from the AC power
supply to the instrument.
Input: 100-240 V 50/60 Hz 25–38 VA
Output: 8 V 1.5 A
Plug design: Center-negative
■Hard Case CR-A90
This case can be used to store the instrument together
with its accessories.
* Do not use the case for transporting or shipping.
■Protective Cover CR-A91
This set prevents foreign contaminants from getting inside
the instrument when used in locations prone to dust.

10
Before Using the Instrument
Chapter 1
System Diagram
Standard accessories
Optional accessories
AC Adapter
AC-A308
AA-size
Batteries (×4) AC Adapter
(USB bus power type)
AC-A305J,K,L,M
USB Cable
IF-A25 Printer
(Commercially available)
PC
(Commercially available)
APP
PC application
(stored in CR-20 body)
DATA
MANUAL
WARNING
COLOR READER
CR-20
Protective Cap
CR-A93
Wrist Strap
CR-A73
Hard Case
CR-A90
Protective Cover
CR-A91 Soft Case
CR-A98
White
Calibration Cap
CR-A86

11
Before Using the Instrument
Chapter 1
Names and Functions of Parts
1. Measuring button
Press to calibrate or measure.
2. Operation keys
The keys are used to switch screens and to select, set, or save settings.
See page 22 “Instrument Operation/Display” for details.
3. LCD screen
Displays settings, measurement results, messages, etc.
4. READY lamp (blue)
Displays the measurement ready status when charging of the emission circuit is
complete.
5. STATUS lamp (orange)
Illuminates the lamp when measurement fails, when the xenon tube is burnt out, when
operation cannot be performed, and for other error notifications.
6. Sample surface aperture
This is the aperture for measuring samples. The diameter of the opening can be
changed by replacing the target mask.
7. Target mask
The target mask is used for aiming.
8. Tripod socket
9. Battery compartment cover
This is the cover for the battery compartment. Four AA batteries can be inserted into
the battery compartment according to the polarity indications within.
10. Protective connector cover
Protects the AC adapter socket and USB connection terminal.
11. USB terminal
Used to connect the instrument to a PC or a printer (sold separately) when using the
supplied USB cable (IF-A25).
12. AC adapter socket
Used to connect the AC adapter connector plug when using the optional AC adapter
(AC-A308).
13. Strap holder
Used to attach the supplied wrist strap.
Memo See page 12, “Attaching the Wrist Strap”, in this manual for how to attach
the wrist strap.
14. Power button
Used to turn the power ON/OFF. The power can be switched ON/OFF by pressing
and holding this button.
3.
2.
10.
1.
9.
8.
7.
11.13.14.
4.
5.
6.
12.

12
Before Using the Instrument
Chapter 1
Handling the Instrument
Attaching the Wrist Strap
Notes When using the instrument by hand, attach the wrist strap and pass your
arm through the strap to prevent the unit from falling.
Procedure
❶Pass one end of the wrist strap
through the strap holder on the
instrument.
❷Pass the other end of the strap
through the loop, and fold the end of
the strap that was passed through
the strap holder back through the
loop as well.
❸Pass the end of the strap that was
first passed through the loop through
the buckle.
❹From the opposite direction of the
end that was just passed through the
buckle, also pass the other end of the
strap through the buckle.
Memo When the strap is worn on the arm,
move the loop as needed to tighten
the strap as necessary.

13
Before Using the Instrument
Chapter 1
Inserting Batteries
This instrument can be powered by four AA batteries (alkaline batteries or nickel-metal hydride rechargeable batteries). Use batteries as needed for the application.
Notes • Do not use manganese batteries.
• Remove the batteries if the instrument will not be used for at least 2 weeks. If the batteries are left in the instrument for long periods, the batteries may leak and
damage the instrument.
• Do not mix battery types or use a mixture of new batteries and used batteries. Doing so may cause the batteries to rupture or a decrease in battery life.
• Do not touch or short-circuit the terminals in the battery compartment. Doing so may damage the instrument.
Procedure
Handling the Instrument (Cont.)
❶Verify that the power has been turned
OFF (LCD screen display is blank).
❹To close the cover, insert the
protrusions on the cover in to the
holes on the battery compartment on
the instrument, and then press the
cover in until it clicks.
❷To open the battery compartment
cover, slide the cover in the direction
indicated by the arrow.
❸Insert four AA batteries according to
the polarity indications shown in the
battery compartment.
Powering from a PC
The included USB cable (IF-A25) can be used to connect the instrument to and power the
instrument from a PC. Refer to “Connecting to a PC” on page 39 for details on
connecting the instrument to a PC.
Notes When unplugging the USB cable from the instrument or the PC, be sure to
verify that the instrument power has been turned OFF.

14
Before Using the Instrument
Chapter 1
Connecting an AC Adapter
Notes • When using AC power for the instrument, be sure to use the optional AC adapter (AC-A308) or the USB bus power AC adapter (AC-A305J,K,L,M).
• When connecting or disconnecting the plug, be sure to verify that the power has been turned OFF.
Memo Be sure to connect the USB bus power AC adapter (AC-A305J,K,L,M) using the USB cable (IF-A25) supplied with the product.
Handling the Instrument (Cont.)
When Using the USB Bus Power AC Adapter (AC-A305J,K,L,M) (Optional Accessory)
Although the AC adapter plug can be connected and disconnected with the instrument
power turned ON, in this section, the power is turned OFF before connection.
When Using the AC Adapter (AC-A308) (Optional Accessory)
❶Verify that the power has been turned
OFF (LCD screen display is blank).
❶Verify that the power has been turned
OFF.
❷Close the protective connector cover
for the AC adapter socket. ❷Plug the connector on the USB cable
(A type) into the AC adapter.
❸Connect the AC adapter connector
plug to the AC adapter socket. ❸Connect the connector (B type) of the
USB cable to the USB connection
terminal as shown in the diagram.
❹Plug the AC adapter power plug into a
socket with 100 VAC (50/60 Hz).
❹Plug the AC adapter power plug into a
socket with 100 VAC (50/60 Hz).
Protective
connector
cover
LCD screen
LCD screen

15
Before Using the Instrument
Chapter 1
Handling the Instrument (Cont.)
Attaching/Removing the Target Mask
The following procedure explains how to attach or remove the target mask.
Notes • Take care to prevent dust or the like from entering the integrating sphere from the sample surface aperture during operation.
• Do not touch the inside surface of the integrating sphere painted white, use a cloth to wipe off dust or dirt, or put anything inside.
• Do not apply excessive force to latch portion on the inside of the target mask. The target mask may become unusable if the latch portion is damaged.
• If the target mask is damaged, contact a KONICA MINOLTA-authorized service facility.
Attaching to/Removing from Instrument Attaching
❶Apply the target mask so that the
protrusions on the outer perimeter of the
target mask are aligned with the starting
point of the mark used for aligning
the instrument.
❷Hold the outer perimeter of the target mask,
and rotate in the direction of the arrow
(clockwise). Turn the target mask until the
protrusion on the outer perimeter aligns
with the | mark on the instrument and a
clicking sound is heard. The target mask
will be secured.
Removing
❶Hold the outer perimeter of the target mask,
and rotate in the opposite direction of the
arrow (counterclockwise) to remove the
target mask. Rotate the mask until the
protrusion on the outer perimeter reaches
the starting point of the mark used for
aligning the instrument.
❷Hold the outer perimeter of the target mask
to remove it.
Target mask
CR-20
Mark

16
Before Using the Instrument
Chapter 1
Handling the Instrument (Cont.)
White Calibration Cap CR-A86
The white calibration cap, constructed as shown below, is used for performing white calibration.
Notes • When the white calibration cap is not being used, keep it away from external light and dust by putting on the dedicated lid and storing it.
Placing
❶Hold the instrument securely.
❷Place the white calibration cap with the
white calibration area upward, and place
the instrument on top so that the target
mask fits over the white calibration area.
Notes Do not fix the white calibration cap to
the instrument.
Removing
❶Remove the instrument from the white
calibration cap, and attach the lid to the
cap.
Using the White Calibration Cap
White calibration cap
CR-20

17
Before Using the Instrument
Chapter 1
Handling the Instrument (Cont.)
How to Strage
When you put away the instrument in the soft case, please housed as shown in the figure.
Notes When the white calibration cap is not being used, put on the dedicated lid, please store it in a location protected from external light or dust.
Protective Cap
White
Calibration
Cap
Lid

18
Before Using the Instrument
Chapter 1
Handling the Instrument (Cont.)
Cleaning the Components
This section explains how to clean the target mask, the white calibration cap, and the
inside of the integrating sphere.
Target mask
• If the glass portion of the target mask becomes dirty, gently wipe the dirt off using a soft
cloth. If the dirt does not come off easily, wipe using a cloth soaked in commercial lens
cleaner, and then wipe using a cloth soaked in water before drying.
• If areas other than the glass become dirty, gently wipe the dirt off using a cloth soaked
in water or soapy water. Never use solvents such as thinner or benzene.
• If the inside becomes dirty, blow off the dirt or dust using a blower.
Notes Do not touch the inside of the target mask or use a cloth to wipe off dust or
dirt on the mask. If the target mask is dirty, and the dirt cannot be removed
by a blower or the like, contact a KONICA MINOLTA-authorized service
facility.
White Calibration Cap
• If the white calibration area becomes dirty, gently wipe the dirt off using a soft cloth. If
the dirt does not come off easily, wipe using a cloth soaked in commercial lens cleaner,
and then wipe using a cloth soaked in water before drying.
• If areas other than the white calibration area become dirty, gently wipe the dirt off using
a cloth soaked in water or soapy water. Never use solvents such as thinner or benzene.
Notes Take care so as not to scratch the white calibration area.
❶Remove the target mask.
Memo See page 15, “Attaching/Removing the
Target Mask” for how to remove the target
mask.
Target
mask
❷Use a blower to blow off dust or dirt inside the
integrating sphere.
Notes Do not touch, use a cloth to wipe off dust
or dirt, or put anything inside the
integrating sphere. If the inside of the
integrating sphere is dirty, and the dirt
cannot be removed by a blower or the like,
contact a KONICA MINOLTA-authorized
service facility.
Inside the Integrating Sphere
Procedure

19
Before Using the Instrument
Chapter 1
Handling the Instrument (Cont.)
Turning the Power ON/OFF
Turning the Power ON
❶Press and hold
POWER
for about 1
second.
The display on the LCD screen will
appear and the READY lamp will
illuminate in blue.
Turning the Power OFF
❶If the power is ON, press and hold
POWER
for about 1 second.
The display on the LCD screen will
disappear.
Memo • When shipped from the factory, the buzzer sound and READY lamp are set to
ON.
• The buzzer sound when the power is turned ON or when measuring can be
changed to OFF using the PC application settings for the instrument. For
details, see “*Settings Only Configurable from the PC Application” under Other
Settings on pages 53 to 54.
BEEP BEEP!
Power button

20
Before Using the Instrument
Chapter 1
AVERAGE MENU/OK
᪥ᮏㄒ
English
MENU
Back
Language
Handling the Instrument (Cont.)
1 Select the desired language and confirm.
or 
MENU/OK
2 Go back to the <MENU> screen.
MENU/OK
Display Language (When first turning the CR-20 ON)
When first turning the instrument ON after purchasing, a message that reads, “Please select language.” will be displayed.
One of two languages can be selected for the display language: English or Japanese.
(LCD screen)
Press [OK] to
close the dialog.
Here, the selection
frame is pointing
to “Back”.
The selected
language is
> English.
MENU/OK
10:00
AVERAGE MENU/OK
⾲♧ゝㄒࢆ㑅
ᢥࡋ࡚ୗࡉ࠸
Please
select
language.
OK
10:00
᪥ᮏㄒ
English
MENU
Back
Language
10:00
᪥ᮏㄒ
English
MENU
Back
Language