Table of Contents

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Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
CHROMA METER
CR-400/410
Instruction Manual

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Table of Contents
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Summary of Contents for Minolta CR-400

  • Page 1 ® Advanced Test Equipment Rentals www.atecorp.com 800-404-ATEC (2832) CHROMA METER CR-400/410 Instruction Manual...
  • Page 2: Safety Symbols

    Never disassemble the instrument. Notes on This Manual • Copying or reproduction of all or any part of the contents of this manual without MINOLTA’s permission is strictly prohibited. • The contents of this manual are subject to change without prior notice.
  • Page 3: Safety Precautions

    In such situations, turn AC adapters other than those specified the power OFF immediately, disconnect by MINOLTA are used, this may result the AC adapter from the AC outlet (or re- in damage to the unit, fire or electric move the batteries if they are used) and shock.
  • Page 4: Introduction

    Head alone. Layout of This Manual • This manual describes the CR-400 and CR-410. The CR-400 is used for illustrations, and any differences have been pointed out clearly so the manual may be used equally for both models. • The manual is divided into two sections covering the Measuring Head and one section on the data processor.
  • Page 5: Conventions

    Conventions <Illustrations for Operating Procedures> The section within this manual. Numbered order for operating pro- cedure. Key panel used for operation and po- sition of instrument. Screen display. Differs according to user settings. The Measuring Head has the and the data processor has the key.
  • Page 6: Notes On Use

    • Do not use the CR-400/410 at altitudes of higher than 2000m. • The CR-400/410 is designed for indoor use only, and should never be used outside as there is a danger that rain and other environmental factors may damage the instrument.
  • Page 7: Roll Paper

    <Power Source> • Make sure that the power switch is set to OFF when the CR-400/410 is not in use. • Always use the AC adapter (AC-A17) supplied as a standard accessory and connect it to an AC outlet of the rated voltage and frequency.
  • Page 8: Notes On Storage

    (such as silica gel) at room temperature. • Do not leave the CR-400/410 inside a car or in the trunk of a car. Under direct sunlight in summer, the increase in temperature can be extreme and may result in malfunction.
  • Page 9: Table Of Contents

    Contents Safety Precautions ........................Introduction ..........................Layout of This Manual ......................Conventions ..........................<Illustrations for Operating Procedures> ................Notes on Use ..........................<Operating Environment> ....................<The Instrument> ......................... <Measurement> ........................<White Calibration Plate> ....................<Roll Paper> ......................... <Printing> ..........................<Power Source> ........................<Recommended Batteries>...
  • Page 10 Using the measuring head by setting it using the data processor and then disconnecting it. This section describes functions which run by setting the measuring head using the optional CR-400 utility software CR-S4w or the Color data software ChromaMagic CR-S3w, although the head cannot be set by itself.
  • Page 11 Chapter 3 -- Data Processor -- This section describes use of the measuring head connected with the data processor. Function guide ......................... Preparation ..........................Inserting the Batteries ......................<Power Supply> ........................Connecting the AC Adapter ....................<Power Supply> ........................Connecting the Measuring Head and Data Processor ............Setting Status of Connected Measuring Head and Data Processor ........
  • Page 12 Displaying the Stored Data ..................... 107 <One Displaying Individual Data Sets> ................107 <Displaying Individual Data Sets> ..................108 Statistical Operations on Stored Data ................... 110 Deleting the Stored Data ......................112 <Deleting/Undoing the Latest Data> ..................112 <Deleting/Undoing the Selected Data> ................112 <Deleting by Page/All Page>...
  • Page 13: Before Use

    Standard accessories are available with this instrument. In the text, “Head” indicates the Measuring Head and “DP” indicates the Data Processor. White Calibration Plate CR-A43 (for CR-400 Head) CR-A44 (for CR-410 Head) Used during white calibration. Back side of the cover lists calibration data.
  • Page 14: Optional Accessories

    CR-A103 Used for storing measuring head, data processor and accessories. Do not use for transportation. Glass Light Projection Tube CR-A33a, A33f (for CR-400 Head) CR-A33e (for CR-410 Head) The glass on the tip can be used when measuring wet CR-A33a objects or when flattening woven cloth, etc., for mea-...
  • Page 15 Pivoting Base CR-A12 (for CR-400 Head) Switching the light projection tube for the CR-400 measuring head to the CR-A33c and attaching it to the pivoting base CR-A12 allows more stable mea- surement as well as more accurate determining of the measuring point.
  • Page 16: System Configuration

    System Configuration Standard accessories Optional accessories CR-400 Utility Software CR-S4w CD-ROM Shoulder Strap SS-01 Color Data Software PC (on the market) ChromaMagic CR-S3w (Version1.1 or higher) CD-ROM Hard Case CR-A103 Roll Paper DP-A22 (5 rolls) RS-232C Cable (for PC)CR-A102 Data Processor...
  • Page 17: Names And Functions Of Parts

    6. Light projection tube : The CR-400 light projection tube can be replaced with the optional CR- A33a, c, d, and f light projection tubes. The CR-410 light projection tube can be replaced with the optional CR-A33e light projection tube.
  • Page 18: Measuring Head Key Panel

    Names and Functions of Parts <Measuring Head Key Panel> • Used when doing a white calibration. 1. Calibration key • Pressing this key while in the measurement screen deletes the latest 2. Delete/Undo key data. Pressing again, deleted data comes back. Deleted data is main- tained until next measurement.
  • Page 19: Data Processor

    <Data Processor> ④ ⑤ ⑥ ⑧ ⑦ ⑩ ① ② ③ ⑨ 1. Power switch : Turns ON and OFF the power . 2. RS-232C terminal : Connect the RS-232C cable when transmitting data back and forth to the data processor or a computer. 3.
  • Page 20: Data Processor Key Panel

    Names and Functions of Parts <Data Processor Key Panel> Each key sometimes works to activate a function and sometimes simply to input a number or a letter. [As function keys] 1. Calibration key • Used when doing a white calibration. (only when connected to the measuring head) 2.
  • Page 21 • Changes the display format while in the measurement screen or while 5. Change Display key 5 JKL stored data is displayed in the data list. • Changes the color space while in the measurement screen or while stored 6. Color Space key data is displayed in the data list.
  • Page 22 Names and Functions of Parts [As input keys] • Numeric input is used for white calibration values, selected calibration, 1. Numeric pad Index Set 0 color difference target color data, color difference restriction, the clock, the timer, and the CMC parameter input screen. •...
  • Page 23: Chapter 1 -- Measuring Head

    Chapter 1 -- Measuring Head 1 -- This chapter describes how to use the measuring head alone.
  • Page 24: Function Guide

    Setting Baud rate setting • (2) above can be set using the optional CR-400 utility software CR-S4w and the Color data software ChromaMagic CR-S3w as well. See the software manuals for details. • User index displays can also be registered from the optional software. (See page 48.)
  • Page 25: Preparation

    CAUTION Do not use batteries other than those specified by Minolta. When installing batteries in the instrument, make sure that they are correctly oriented according to the (+) and (-) marks. Failure to adhere to these instructions may cause the batteries to explode or leakage electro- lytes, resulting in fire, injury, or air pollution.
  • Page 26 [Operating Procedure] Turn the power switch to OFF (O) and open the battery chamber cover on the side of the measuring head. Battery chamber cover Insert 4 AAA size batteries in accordance with the po- larity indications shown in the battery chamber. –...
  • Page 27: Connecting The Ac Adapter

    Always use the AC adapter supplied as a standard accessory or the optional AC adapter, and connect it to an AC outlet of the rated voltage and frequency. If the AC adapters other than those specified by MINOLTA are used, this may result in damage to the unit, fire or electric shock.
  • Page 28: Power Supply

    Notes on Use • Before connecting or removing the AC adapter, make sure that power is turned OFF. [Operating Procedure] Make sure the power switch is turned OFF (O). Connect the AC adapter connector plug to the AC adapter terminal on the rear of the instrument. AC adapter terminal Insert the AC adapter power plug to an AC outlet (100- 240 Vac).
  • Page 29: Turning The Power On ( | ) And Off (Ο)

    Turning the Power ON ( | ) and OFF (O) <Turning the Power ON> [Operating Procedure] Set the POWER switch to ( | ). • The measurement screen appears after the start-up screen. • The PC mode screen appears when in PC mode. Power switch <Turning the Power OFF>...
  • Page 30: Setting Language Mode

    The instrument's language mode is set to English when shipped from the factory. To set a different language, the DP-400 Data Processor (see P.70 "Setting Language mode" for de- tails), or the optional CR-400 utility software CR-S4w or Color data software ChromaMagic CR-S3w are required.
  • Page 31: Lcd Display And Communication Setting

    LCD Display and Communication Setting The following four items can be set in the instrument. Setting item Value Default Description 1) Contrast Adjusts the contrast of the LCD. The larger value displays darker. 2) Back light OFF/ON Turns the LCD backlight ON and OFF. When ON, the light comes ON for 30 seconds after key operation and then automatically goes OFF.
  • Page 32: Displaying Measurement Results

    Displaying Measurement Results <Screen Display> T00 [0001] The basic screen layout is shown right.   L*=  74.72      a*=  15.32    [Setting conditions]   b*=  10.21    • A color difference target color is set. • L*a*b* color space and absolute/color difference are selected by  ΔL*=  +0.11    pressing the Color Space key COLOR  Δa*=  −0.01   ...
  • Page 33: Selecting The Color Space

    <Selecting the Color Space> Using this instrument changes the color space for as below. XYZ, Yxy, L*a*b, Hunter Lab, L*C*h, and Munsell (illuminant C only) Up to 6 data can be displayed if a user index is registered. (See P.48 “User Index”.) See P.32 “Color Space and Changing the Display”...
  • Page 34: Color Space And Changing The Display

    <Color Space and Changing the Display> Setting conditions of color space and symbol/illuminant/default of displayed color limit/changing display are shown as follows. There are restrictions depending on selected color space in the following table. • In Chapter 1 Measuring Head 1, only in the table function.
  • Page 35: Color Space And Color Difference Setting

    <Color Space and Color Difference Setting> Setting conditions of color space and symbol/color difference target color/color difference tolerance types are shown as follows. There are restrictions in the following table depending on selected color space. • In Chapter 1 Measuring Head 1, only in the table function.
  • Page 36 Attaching the Wrist Strap The wrist strap is attached to the instrument as follows. [Operating Procedure] Pass the strap through the wrist strap attachment. Pass the strap back through, as shown in the figure at right.
  • Page 37: Measurement

    Measurement Basic Operating Procedure Flow White Calibration (P.36) Measuring absolute value Measuring color difference value Setting the Color Difference Target Color (P.40) Absolute Measurement (P.38) Measuring the Color Difference 1) Setting a new color 2) Selecting a pre-existing difference target color color difference target before every color before...
  • Page 38: White Calibration

    White Calibration When using the instrument for long periods of time, the displayed value may change depending on changes in the environment. Therefore, in order to achieve accurate measurements, we recommend that white calibration is done regularly using the white calibration plate. White calibration should also be done before measuring after a long time has passed since the instrument was last used.
  • Page 39 , the DP-400 data processor is required. (See P72.) The optional CR-400 utility software CR-S4w and the Color data software ChromaMagic CR- S3w can change Illuminant as well. Place the measuring head vertically above the middle of the white calibration plate.
  • Page 40: Absolute Measurement

    Absolute Measurement This instrument can measure reflected object color with the color space, XYZ, Yxy, L*a*b*, Hunter Lab, L*C*h, Munsell as the default. Measurement should be done under the same temperature conditions as calibration. POWER Ready lamp Specimen Bofore Mesurement •...
  • Page 41 • After measurement, pressing the Color Space key converts the measurement data to other color COLOR spaces. (See P.31 “ Selecting the Color Space”.) • If a color difference target color is set you can display color difference data. (See P.29 “ Screen Display”.) •...
  • Page 42: Color Difference Measurement

    Color Difference Measurement This instrument can measure the color difference between the color difference target color and a speci- men using color spaces, ∆ (XYZ), ∆ (Yxy), ∆ (L*a*b), ∆ (Hunter Lab), and ∆ (L*C*H*) as the de- fault. <Setting the Color Difference Target Color> Before measuring color difference, you must set the color difference target color in the instrument.
  • Page 43 Press the Target Color key to set a new color differ- [TARGET]        ence target color. T01       • The new color difference target color setting screen appears. • When several different color difference target colors are set,      L*=  0.00    select the color difference target color using the key .
  • Page 44: Measuring The Color Difference

    Color Difference Measurement <Measuring the Color Difference> Measurement should be done under the same temperature conditions as calibration and set- ting color difference target color. 1) Setting a new color difference target color before every measurement Setting Measuring color difference target color color difference This is useful if is repeated.
  • Page 45 Press the measurement button of the measuring head T00      [0002] after making sure the ready lamp is ON. • Measurement is done and the data is displayed.   L*=  89.20      a*=   1.79      b*=  15.05    Do not move the measuring head during measurement.  ΔL*=  −0.02     Δa*=  +0.05     Δb*=  +0.01     ΔE*=   0.06   ...
  • Page 46 Color Difference Measurement Press the measurement button of the measuring head after making sure the ready lamp is ON. • Measuring overwrites the color difference target color data to color difference target color name T00. Do not move the measuring head during measurement. [TARGET]       ...
  • Page 47 Press the measurement button of the measuring head T00      [0003] after making sure the ready lamp is ON. • Measurement is done and measurement data is displayed.   L*=  89.21      a*=   1.79      b*=  15.21    Do not move the measuring head during measurement.  ΔL*=  −0.01     Δa*=  +0.05     Δb*=  +0.17     ΔE*=   0.18   ...
  • Page 48: Selecting A Pre-Existing Color Difference Target Color Before Measurement

    Color Difference Measurement 2) Selecting a pre-existing color difference target color before measurement POWER Specimen Bofore Mesurement • Select the color space for your use. See P.31 “Selecting the Color Space” for details. Operating Procedure Press the Target Color key while in the measurement screen.
  • Page 49 Press the Enter key T00      [0001] ENTER • The selection of the color difference target color is complete   L*=  89.26    and returns to the measurement screen.   a*=   1.79      b*=  14.89     ΔL*=        Δa*=        Δb*=        ΔE*=          C     1 Mesurement data Place the measuring head vertically above the specimen . POWER Press the measurement button of the measuring head T00      [0002]...
  • Page 50: Functions

    This can be done automatically by connecting a data processor to the measuring head. • The optional CR-400 utility software CR-S4w and Color data software ChromaMagic CR-S3w are needed to write the user index. See the operation manual for the CR-400 utility software CR-S4w for details on how to write the user index.
  • Page 51: Connecting To External Devices

    By connecting the instrument to a PC/AT compatible PC using the optional RS-232C cable CR-A102, the data stored in the instrument memory can be transfer each other. Use the optional CR-400 utility software CR-S4w and the Color data software ChromaMagic CR-S3w when connecting the instrument to a PC.
  • Page 52: Sip/Sop Connections

    SIP/SOP Connections • Accessories equipment connected the analog and digital interfaces must be certified to the respec- tive IEC standards ( i.e. IEC950 for data processing equipment.) • Furthermore all configurations shall comply with the system standard IEC 1010-1, Everybody who connects additional equipment to the signal input part or signal output part configures a electrical equipment for measurement system, and is therefore, responsible that the system complies with the requirements of the system standard (IEC 1010-1.
  • Page 53 Press the Enter key while in the start-up screen. ENTER •The menu screen will appears. [MENU]     MINOLTA       CHROMA METER   CR−400 Series  CONTRAST     6  Ver.*.**   BACK LIGHT OFF  BAUDRATE  9600      C ****      PC MODE         MINOLTA CO. , LTD.  CHANGE:[ENTER]    MENU:[ENTER]   C     1 Start-up screen Menu screen Move the cursor using the key and select "PC MODE."...
  • Page 55: Chapter 2 -- Measuring Head

    This chapter describes functions which cannot be set with the measur- ing head alone, but can be set using the data processor and the optional CR-400 utility software CR-S4w and Color data software ChromaMagic CR-S3w. • See P.63 “Connecting the Measuring Head and Data Processor” for...
  • Page 56: Additional Functions

    Additional Functions 1. Measurement <Setting the Number of Measurements for Automatic Average> T00      [0001] It is possible to set the number of measurements for average to 1-30 times.   L*=  74.72    See P.72 “Basic Setting” for details on how to set this.   a*=  15.32    •...
  • Page 57: Color Difference Target Color

    4. Color Difference Target Color <Setting color difference target color using value entry> The color difference target color can be set using key entry. See P.93 "2) Using the keys to set the color difference target color" for details on the setting procedure. <Changing the Color Difference Target Color Name>...
  • Page 58: Processing Stored Data

    (Only statistical operation display) See P.71 “Setting Date & Time” for details on how to set. Using the optional CR-400 utility software CR-S4w allows you to display the date and time for each data. <Illuminant>...
  • Page 59: Chapter 3 -- Data Processor

    Chapter 3 -- Data Processor -- This chapter describes how to use connected the Measuring Head and Data Processor.
  • Page 60: Function Guide

    Function guide The Data Processor has the following functions available depending on how it is used. 1) All of the following functions can be used when the Measuring Head and the Data Processor are connected. (See P.57 "Chapter 3 Data Processor). 2) Functions surrounded by in the following table can be used with the Data Processor alone.
  • Page 61: Preparation

    CAUTION Do not use batteries other than those specified by Minolta. When installing batteries in the instrument, make sure that they are correctly oriented according to the (+) and (-) marks. Failure to adhere to these instructions may cause the batteries to explode or leakage electro- lytes, resulting in fire, injury, or air pollution.
  • Page 62: Power Supply

    [Operating Procedure] Turn the power switch OFF (O) and open the battery chamber cover on the bottom of the data processor. Battery chamber cover Insert 4 AA size batteries in accordance with the polar- ity indications shown in the battery chamber. Close the battery chamber cover.
  • Page 63: Connecting The Ac Adapter

    Always use the AC adapter supplied as a standard accessory or the optional AC adapter, and connect it to an AC outlet of the rated voltage and frequency. If the AC adapters other than those specified by MINOLTA are used, this may result in damage to the unit, fire or electric shock.
  • Page 64: Power Supply

    Notes on Use • Before connecting or removing the AC adapter, make sure that power is turned off. [Operating Procedure] Make sure the power switch is turned OFF (O). Connect the AC adapter connector plug to the AC adapter terminal on the rear of the instrument.
  • Page 65: Connecting The Measuring Head And Data Processor

    Connecting the Measuring Head and Data Processor Precautions regarding connecting and disconnecting the measuring head and data processor. • Before connecting and disconnecting, make sure that the power to both the measuring head and dataprocessor is turned OFF. • Hold the connector when connecting or disconnecting. Do not bend, pull, or apply undue pressure to the cord, as this may cause it to break.
  • Page 66: Setting Status Of Connected Measuring Head And Data Processor

    <Setting Status of Connected Measuring Head and Data Processor> The common default settings and connecting status of connected measuring head and data processor are shown as follows. • Setting items which are not described below are not changed in spite of connecting status. (Head: Measuring Head, DP: Data Processor) Default Connecting status...
  • Page 67: Turning The Power On ( | ) And Off (Ο)

    Turning the Power ON ( | ) and OFF ( O ) <Turning the Power ON> [Operating Procedure] Set the POWER switch to ( | ). • The measurement screen appears after the start-up screen. Power switch <Turning the Power OFF> [Operating Procedure] Set the POWER switch to ( O ).
  • Page 68: Recognizing Connection Of Measuring Head And Data Processor

    <Recognizing Connection of Measuring Head and Data Processor> The data processor recognizes connecting status to measuring head automatically and can communi- cate with measuring head after power is ON. The following screens appears while the data processor reads settings of measuring head. Reading time depends on number of color difference target color data of measuring head.
  • Page 69: Inserting The Roll Paper

    Inserting the Roll Paper Notes on Use The data processor has a thermal printer which does not require an ink ribbon. Printed data may become difficult to read because of the way the paper has been stored. Use new roll paper whenever possible.
  • Page 70 Insert the edge of roll paper into the slot as shown in the figure. Inner surface of roll paper is up side. Inserting the paper upside down results in nothing printed. Pull out the edge of the roll paper by 4- 5 cm manually.
  • Page 71: Adjusting The Contrast Of The Lcd

    Adjusting the Contrast of the LCD Adjust the brightness of the LCD display to the most appropriate level. [Operating Procedure] Turn the display contrast adjustment dial on the right side of the data processor so that the display is the most appropriate level. •...
  • Page 72: Setting Language Mode

    Setting Language Mode The instrument allows the user to select from six language modes. 1) Japanese 2) English 3) German 4) French 5) Spanish 6) Italian If the language settings in the measuring head and the data processor are different, the setting for the data processor is reflected to the measuring head.
  • Page 73: Setting Date & Time

    Setting Date & Time This function only works when the measuring head is connected. [Operating Procedure] Press the Option key while in the measurement Option [OPTION] 4 GHI screen.  TOLERANCE • The option screen appears.  AUTO MEAS.  DATE & TIME  IMPORT  MALTI CAL. P00    [0001]...
  • Page 74: Basic Setting

    Basic Setting The instrument has the following nine basic settings. Settings Description Item Default OFF/ON 1) Printer This sets whether or not to automatically print data after measurement. (Automatic printing) Print/Paper Feed key still works, regardless of this setting. 2) Printing color OFF/ON This sets whether or not to print all color spaces se- spaces...
  • Page 75 [Operating Procedure] Press the Index Set key while in the measurement Index Set [INDEX SET] 1/2  0  PRINTER ON screen.  COLOR SPACE OFF • The index set screen is displayed.  PROTECT OFF  AUTO AVERAGE 1  ILLUMINANT   C  BACK LIGHT OFF Select the item to set using the key.
  • Page 76: Setting The Displayed Color Limit

    Basic Setting <Setting the Displayed Color Limit> This setting selects the color space to be displayed. See P.79 "Color Space and Changing the Display" and P.80 "Color Space and Color Difference Set- ting" for details on the setting conditions. [Operating Procedure] Press the Index Set key while in the measurement Index Set...
  • Page 77: Cmc Parameter Setting

    <CMC Parameter Setting> The CMC parameter can be set anywhere in the range of 0.1 to 9.9. See P.79 “Color Space and Changing the Display” and P.80 “Color Space and Color Difference Set- ting” for details on setting conditions. 3,5,7 [Operating Procedure] After steps 1 to 3 on P.74 “Setting a Displayed Color Limit”, perform following steps below.
  • Page 78: Initial Setting

    Initial Setting Initialize the settings to return to factory preset. Date and time are not changed. • “Measurement data” stored in the instrument as well as “white calibration data”, “user calibration data”, and “color difference target color data” stored in the connected measur- ing head are all deleted.
  • Page 79 • The initial setting screen appears after the operating screen. [INFORMATION] NOW OPERATING...        P00    [0001] Operating screen Press the Measure/Enter key to start the initial- [INIT. SETTING] ization. • If the power is already ON, turn it OFF, wait a few seconds, INITIAL SET OK?...
  • Page 80: Displaying Measurement Results

    Displaying Measurement Results <Selecting the Color Space> Using this instrument changes the color space as below. (Color spaces) XYZ, Yxy, L*a*b*, Hunter Lab, L*C*h, Munsell (illuminant C only), CMC(l:c), CIE1994, Lab 99, LCh99, CIE2000, CIE WI/Tw (illuminant D only), WI ASTM E313 (illuminant C only), YI ASTM D1925 (illuminant C only), YI ASTM E313 (illuminant C only) * User index •...
  • Page 81: Color Space And Changing The Display

    <Color Space and Changing the Display> Setting conditions of color space and symbol/illuminant/default of displayed color limit/changing display are shown as follows. There are restrictions depending on selected color space in the following table. • In chapter 3 Data Processor, all displays except for User index in the table function. (O: Valid, X: Invalid) Symbol Illuminant...
  • Page 82: Color Space And Color Difference Setting

    Displaying Measurement Results <Color Space and Color Difference Setting> Setting conditions of color space and symbol/color difference target color/color difference tolerance types are shown as follows. There are restrictions in the following table depending on selected color space. • In chapter 3 Data Processor, all displays except for User index in the table function. (O: Valid, X: Invalid) Symbol Color difference target color...
  • Page 83: Screen Display And Changing The Display

    <Screen Display and Changing the Display> The basic screen layout is shown below. The measurement results can be changed as needed. [Operating Procedure] Press the Change Display key while in the measurement screen to change 5 JKL the display for your use. •...
  • Page 84 Displaying Measurement Results Information display 1) Current measurement data number (per page) 2) Color difference target No. and color name for the displayed measurement data. Measurement value display 3) Absolute measurement data 4) Color difference measurement data 5) Color difference sensuous display L* direction: “L”...
  • Page 85 Color difference graph The display is as shown in the figure at right when no color difference  T00      [0001]   ΔL*     Δb*    tolerance is set. Setting the color difference tolerance (see P.116 “Setting the Color Difference Tolerance”) makes the following color difference graph display is displayed.
  • Page 86 Displaying Measurement Results Judgment T01       [0001] The display is as shown in the figure at right when no color difference tolerance is set. PASS/FAIL Setting the color difference tolerance (see P.116 “Setting the Color Difference Tolerance”) makes the following judgement is displayed.             ...
  • Page 87: Measurement

    Measurement Basic Operating Procedure Flow White Calibration (P.86) Measuring absolute value Measuring color difference value Setting the Color Difference Target Color 1) Measuring a specimen 2) Using the keys to set the and setting the data as color difference target the color difference color (P.93) Absolute Measurement (P.88)
  • Page 88: White Calibration

    White Calibration When using the instrument for long periods of time, the displayed value may change depending on changes in the environment. Therefore, in order to achieve accurate measurements, we recommend that white calibration is done regularly using the white calibration plate. White calibration should also be done before measuring after a long time has passed since the instrument was last used.
  • Page 89 After the initial setting is complete, the illuminant is set to C, so set the data for C. When using , change the setting to "D " before calibration as described in steps 1 to 4 on P.72 “Basic Setting 5) Illuminant”. After this, return to this page and set the data for D •...
  • Page 90: Absolute Measurement

    Absolute Measurement This instrument can measure reflected object color with the color spaces, XYZ, Yxy, L*a*b*, Hunter Lab, L*C*h, Munsell, and others. (See P.78 “Selecting the Color Space” for details) Mesurement should be done under the same temperature conditions as calibration. Ready lamp POWER Specimen...
  • Page 91 After Mesurement • Pressing the Color Space key converts the measurement data to other color spaces. (See P.78 “Selecting the Color Space”) • Pressing the Color Space key changes the screen display. (See P.81 “Screen Display and Changing the Display”) •...
  • Page 92: Color Difference Measurement

    Color Difference Measurement The instrument can measure the color difference between the color difference target color and a speci- men using color spaces, ∆(XYZ), ∆(Yxy), ∆(L*a*b*), ∆Hunter Lab, ∆(L*C*H), and others. (See P.78 “Selecting the Color Space” for details.) <Setting the Color Difference Target Color> Before measuring color difference, you must set the color difference target color in the measuring head.
  • Page 93 Press the Escape key [TARGET]    1/1   NEW  T02       • The color difference target color list screen appears.  T01        T00   P00    [0001] List screen Select the color difference target color name using the [TARGET] ◎TARGET VALUE key and press the Measurement/Enter key     L*=  0.00 ...
  • Page 94 Color Difference Measurement Place the measuring head vertically above the color POWER difference target color specimen. Press the Measure/Enter key (or the measure- ment button on the measuring head) after making sure [TARGET] the ready lamp is ON. ◎TARGET VALUE • A new color difference target color is set.     L*= ...
  • Page 95: Using The Keys To Set The Color Difference Target Color

    2) Using the keys to set the color difference target color 3,4,6,8 Bofore Mesurement • Select the color space and screen for your use. See P.78 “Selecting the Color Space”, and P.81 “Screen Display and Changing the Display” for details. Operating Procedure [TARGET]...
  • Page 96 Color Difference Measurement Press the Escape key [TARGET]    1/1   NEW  T02       • The color difference target color list screen appears.  T01        T00   P00    [0001] List screen Select the color difference target color name using the [TARGET] ◎TARGET VALUE key and press the Measure/Enter key     L*=  0.00 ...
  • Page 97 Set the color difference target color data using the [TARGET] ◎TARGET VALUE key and numeric pad.     L*=  60.72     a*=+ 10.32 Input range: 0.01 ≤ X, Y, Z ≤ 160     b*=+ 12.21 [Example] ◎TARGET NAME  A Setting L*=60.72, a* = +10.32, and b* = +12.21 to color dif-    T02    ...
  • Page 98: Deleting The Color Difference Target Color

    Color Difference Measurement <Deleting the Color Difference Target Color > Color difference target colors which have been set can be deleted in the following ways. Once deleted, they cannot be undone . [Operating Procedure] Press the Target Color key while in the measure- Target [TARGET]...
  • Page 99 Select the color difference target color to deleted us- [TARGET]    1/1   NEW ing the key.  T02        T01        T00   P00    [0001] List screen Press the Delete/Undo key. [TARGET] ◎DELETE • The color difference target color deletion screen appears.  T02   ALL TARGETS P00    [0001]...
  • Page 100: Measuring Color Difference

    Color Difference Measurement <Measuring the Color Difference> Measurement should be done under the same temperature conditions as calibration and set- ting of color difference target color . 1) Setting a new color difference target color before every measurement Setting Measuring color difference target color color difference This is useful if...
  • Page 101 In case of continuing to set other color difference target color and measure color difference [TARGET] Press the Target Color key Target ◎TARGET VALUE Symbol     L*=  74.72 • The color difference target color setting     a*=+ 15.32     b*=+ 10.21 screen appears. • Always the same color difference target Color difference ◎TARGET NAME  A...
  • Page 102 Color Difference Measurement Once settings are complete, press the Measure/Enter  T00      [0001]   L*=  89.26 after   a*=   1.79    • Settings are complete, complete sound beeps and the display   b*=  14.89    ΔL*=     returns to the measurement screen.  Δa*=        Δb*=        ΔE*=         P00    [0001] Measurement screen Place the measuring head vertically above the speci- men.
  • Page 103 After Mesurement • Pressing the Color Space key converts the measurement data to other color spaces. (See P.78 “Selecting the Color Space”) • Pressing the Color Space key changes the screen display. (See P.81 “Screen Display and Changing the Display”) •...
  • Page 104: Selecting A Pre-Existing Color Difference Target Color Before Measurement

    Color Difference Measurement 2) Selecting a pre-existing color difference target color before measurement Ready lamp POWER 4,6,8 Specimen Bofore Mesurement • Select the color space and screen for your use. See P.78 “Selecting the Color Space”, and P.81 “Screen Display and Changing the Display” for details.
  • Page 105 Select the color difference target color for measure- [TARGET]    1/1   NEW ment using the key.  T02        T01        T00   P00    [0001] List screen Press the Measure/Enter key [TARGET] • The target color Edit/Change selection screen appears.  EDIT  CHANGE Select “CHANGE” using the key.
  • Page 106 Color Difference Measurement After Mesurement • Pressing the Color Space key converts the measurement data to other color spaces. (See P.78 “Selecting the Color Space”) • Pressing the Color Space key changes the screen display. (See P.81 “Screen Display and Changing the Display”) •...
  • Page 107: Functions

    Functions Updating the Page This instrument allows users to store measurement data (up to 2000 sets) into 100 pages (page 00 to 99). For example, 20 specimens are measured and the measurement data is stored in page 00. Next, the page is updated to page 01, and 50 sets of specimen measurement data are stored there. In this way, up to 2000 sets of data can be added in each pages.
  • Page 108: Selecting The Page

    Selecting the Page [Operating Procedure] Press the Page key while in the measurement [DATA LIST]  1/1 screen.  NEW • The page list screen appears.  P02  P01  P00 P00    [0030] List screen Select a page using the key. [DATA LIST]  1/1  NEW  P02  P01  P00 P00  ...
  • Page 109: Displaying The Stored Data

    Displaying the Stored Data <1 Displaying Individual Data Sets> [Operating Procedure] Press the key while in the measurement screen. T00       [0001] • The data set changes every time the key is pressed.   L*=  74.72   a*=  15.32    • Only data in the currently selected page can be displayed.   b*=  10.21  ...
  • Page 110: Displaying Individual Data Sets

    Displaying the Stored Data <Displaying Individual Data Sets> [Operating Procedure] Data List Press the Data List key while in the measurement [DATA LIST]  1/1  8 TUV screen.  P02 • The data list screen appears.  P01  P00 P00    [0030] List screen Select a page using the key.
  • Page 111 In case of printing all data Press the Print/Paper Feed key [DATA LIST] • The selectin screen apppears. ◎PRINT SUBJECT    No0010  ALL MEAS. DATA EXECUTE:[Enter]     END:[Esc] P02   C P  [0030] Select “ALL MEAS. DATA” using the key. Press the Measure/Enter key • All data in the selected page are printed from the latest data in oder. After printing, the display returns to the data list screen.
  • Page 112: Statistical Operations On Stored Data

    Statistical Operations on Stored Data This instrument can perform statistical operations (maximum, minimum, agerage, standard deviation) on stored data. These operations are performed on all the chroma or color difference data stored in one page. [Operating Procedure] Change to the color space for the statistical operations. Press the Statistical Operation key while in the Statistic...
  • Page 113 [Screen (example)] [Printout (example)]    [MAX]  [MIN]  L*  89.22  86.07 a*   3.13 − 1.74 b*  35.58  15.04 Page Illuminant number    [AVG]  [SD]   L*  87.23   1.41 a*   1.04   2.05 b*  23.54   8.75 Number of page [Setting conditions] Select L*a*b color space and absolute display First date & time of P00 meaurement Last date & time of P00 meaurement    [MAX]  [MIN] ...
  • Page 114: Deleting The Stored Data

    Deleting the Stored Data There are four ways of deleting data: only the latest data, only the selected 1 data, by page, and all data. The operating procedure is described below. <Deleting/Undoing the Latest Data> [Operating Procedure] Press the Delete/Undo key while in the measurement screen.
  • Page 115 Press the Measure/Enter key  TOO      [0010]   L*=  74.72 • The measurement data screen of the selected page is displayed.   a*=  15.32      b*=  10.21   It is not possible to add (measure) new data here.  ΔL*=  +0.11   Δa*=  −0.01     Δb*=  +0.13     ΔE*=   0.18     P01    [0030] Measurement data screen Select the measurement data using the key.
  • Page 116: Deleting By Page/All Page

    Deleting the Stored Data <Deleting by Page/All Page> Once deleted, data cannot be undone. [Operating Procedure] Press the Page key or the Data List key while [PAGE]       1/1 in the measurement screen.  NEW • The page screen or the data list screen appears.  P02...
  • Page 117: Optional Setting

    Optional Setting (only when connected to the measuring head) The optional setting include the following five settings. 1) Tolerance Setting the color difference tolerance. 2) Auto. measurement Setting the interval time and end time for automatic measurement. 3) Date & time Setting the internal clock.
  • Page 118: Setting The Color Difference Tolerance

    Optional Setting <Setting the Color Difference Tolerance> This instrument can make judgments based on a color difference tolerance for the measurement value of the color difference target color. When measuring color difference, if the measured value is within the color difference tolerance set for the color difference target color, “PASS”...
  • Page 119: Elliptical Tolerance

    Elliptical tolerance This judges whether or not the value of the measured color difference is within the range of the ellip- tical tolerance set for the color difference target color. When setting an elliptical tolerance, besides the tolerance value, an offset and a rotation can also be set. If the set color space is “L*C*h”...
  • Page 120 Optional Setting Set the color difference tolerance and the offset using the key and the nu- meric pad. Offset (∆a*, ∆b*) Rotation Tolerance of ∆L* (∆a*, ∆b*) Target Tolerance of ∆b* value Tolerance of ∆a* Input ranges for the set values (Tolerance) Y: 0.01 to 99.99, xy: 0.0001 to 0.9999, other than Yxy: 0.05 to 80.00 (Offset)
  • Page 121: Box Tolerance

    Box tolerance This judges whether or not the value of the measured color difference is within the range of the box tolerance limit set for the color difference target color. When setting a box-type tolerance, color differ- ence tolorance (±) for each color difference target color can also be set. Set a color difference target color ahead of time before setting a box tolerance.
  • Page 122 Optional Setting Set the color difference tolerance using the key and the numeric pad. + input value of ∆b* + input value of ∆L* − input value + input value of ∆a* of ∆a* Target value − input value of ∆L* −...
  • Page 123 ∆E This judges whether or not the value of the measured color difference is within the range of the ∆E set for the color difference target color. ∆E is displayed as followings depending on set color spaces. ∆E*, ∆E, ∆E94, ∆E99, ∆E00, CMC Set a color difference target color ahead of time before setting ∆E.
  • Page 124 Optional Setting Set the ∆E using the key and the numeric pad. Input ranges for the set values (Tolerance) Y: 0.01 to 99.99, xy: 0.0001 to 0.9999, other than Yxy: 0.05 to 80.00 (Offset) -5.00 to +5.00 (should be within to tolerance) (Rotation) -45 to +45 (Warning level)
  • Page 125: Box Tolerance And ∆E

    Box tolerance and ∆E This judges both box tolerance and ∆E. 1,3,5,7 2,4,6,8 Selecting the limit value in P.115 displays the [limit value] selection screen. [Operating Procedure] Use the key to select a color difference target [TOLERANCE]  1/1  color. ◎TARGET  T03  T02...
  • Page 126 Optional Setting Set the color difference tolerance and ∆E using the key and the numeric pad. Input ranges for the set values (Tolerance) Y: 0.01 to 99.99, xy: 0.0001 to 0.9999, other than Yxy: 0.05 to 80.00 (Warning level) 10 to 100% [TOLERANCE]...
  • Page 127: Setting The Automatic Measurement

    <Setting the Automatic Measurement> No key other than the Escape key functions after the timer is set and the instrument goes into automatic measurement standby status. Be sure to set color space, display, color differ- ence target color, and other settings ahead of time. Selecting timer in P.115 displays the [timer] setting screen.
  • Page 128: Importing The Measurement Data

    Optional Setting <Transfer stored data> It is possible to transfer data stored in the measuring head to the data processor. Import actually moves the data, and does not simply copy it. Selecting multi-calibration in P.115 displays the [multi-calibration] selection screen. Move the cursor using the key and select the page [IMPORT]     1/1...
  • Page 129: Setting The Multi-Calibration

    • The optional CR-400 utility software CR-S4w or Color data software ChromaMagic CR-S3w is needed to write the user index. See the operation manual for the CR-400 utility software CR-S4w or Color data software ChromaMagic CR-S3w for details on how to write the user index.
  • Page 130: Connecting To External Devices

    By connecting the instrument to a PC/AT compatible PC using the optional RS-232C cable CR-A102, the data stored in the instrument memory can be sent to a PC. Use the optional CR-400 utility software CR-S4w or the Color data software ChromaMagic CR-S3w when connecting the instrument to a PC.
  • Page 131: Sip/Sop Connections

    SIP/SOP Connections • Accessories equipment connected the analog and digital interfaces must be certified to the respec- tive IEC standards ( i.e. IEC950 for data processing equipment.) • Furthermore all configurations shall comply with the system standard IEC 1010-1, Everybody who connects additional equipment to the signal input part or signal output part configures a electorical equipment for measurement system, and is therefore, responsible that the system complies with the requirements of the system standard (IEC 1010-1.
  • Page 132 SIP/SOP Connections Press the Index Set key while in the measurement Index Set [INDEX SET] 1/2  0 screen.  PRINTER ON • The index set screen appears.  COLOR SPACE OFF  PROTECT OFF  AUTO AVERAGE 1  ILLUMINANT   C  BACK LIGHT OFF  BUZZER ON  DISP. LIMIT P00    [0001] Index set screen (1/2) Press the key to change to page 2/2.
  • Page 133: Applications

    Applications User Calibration Procedure Flow The relationship between selected calibration and multi/manual select calibration is shown in the flow- chart below. White Calibration (P.86) User Calibration (P.132) can be set to Ch01 to 19 Multi-calibration Manual Select Calibration (P.135) (P.137) Setting the Color Difference Target Color (P.90) Absolute Measurement...
  • Page 134: User Calibration

    User Calibration <What is User Calibration?> This function allows the user sets the “valued” reference specimen already in possession as the user calibration data to be used to correct indicated values during measurement. There are two ways of doing this: multi-calibration and manual select calibration See P.135 “Setting the Multi-calibration”...
  • Page 135 Press the Measure/Enter key [CALIB.]    1/1  ◎USER CALIB. • The user calibration list screen appears.  NEW  Ch02       Ch01      P00    [0001] List screen Select “NEW” using the key. [CALIB.]    1/1  ◎USER CALIB. • To overwrite data onto an existing calibration channel, select  NEW that channel.  Ch02     ...
  • Page 136 User Calibration Move the cursor using the key and set the value [CALIB.] using the numeric pad. ◎USER CALIB.      Y= 80.72 Input range: 0.01 ≤ X, Y, Z ≤ 160      x=0.3208      y=0.2121 ◎CAL. Ch NAME A    Ch03 P00    [0001] Setting screen Place the measuring head vertically above a target specimen.
  • Page 137: Setting The Multi-Calibration

    <Setting the Multi-calibration> This sets the multi-calibration function which corrects indicated values using both white calibration and user calibration data. When setting or canceling multi-calibration, you must set the color difference target color again. The color difference target color is not corrected using user calibration performed after mea- surement.
  • Page 138 User Calibration Press the Measure/Enter key [MALTI CAL.] 1/1  ALL CHANNELS • The multi-calibration setting screen appears.  WHITE CAL. TILE  Ch02  Ch01 Item ALL CHANNELS: Multi-calibration is set. WHITE CAL. TILE: When user calibration is not performed. (See P.86 “White Calibration”) P00    [0001] Ch**: Manual select calibration is set (See P.137 “Setting the Mannul Select Selection screen Calibration”)
  • Page 139: Setting The Manual Select Calibration

    <Setting the Manual Select Calibration> This sets the manual select calibration function which allows the user to select a calibration channel whose calibration data is to be used to correct indicated values. When setting or canceling manual select calibration, you must set the color difference target color again.
  • Page 140 User Calibration Press the Measure/Enter key [MALTI CAL.] 1/1  ALL CHANNELS • The multi-calibration setting screen appears.  WHITE CAL. TILE  Ch02  Ch01 Item ALL CHANNELS: Multi-calibration is set. WHITE CAL. TILE: When user calibration is not performed. (See P.86 “White Calibration”) P00    [0001] Ch**: Manual select calibration is set Selection screen (See P.137 “Setting the Mannul Select Calibration”)
  • Page 141: Deleting The User Calibration Channels

    <Deleting selected calibration channel> The user calibration channel can be deleted as follows. 2,4,6 3,7,8 [Operating Procedure] Press the Calibration key while in the measure- [CALIB.] ment screen. ◎WHITE CALIB. • The calibration screen appears.      Y= 9 3 .5 0      x=0.3 1 1 4      y=0.3 1 9 0...
  • Page 142 User Calibration Select the calibration channel to delete using the [CALIB.]    1/1  key. ◎USER CALIB.  NEW  Ch02       Ch01      P00    [0001] List screen Press the Delete/Undo key [CALIB.] ◎DELETE • The calibration data deletion selection screen will appear.  Ch01  ALL CHANNELS P00    [0001] Selection screen Select either one channel selected or “ALL CHAN- [CALIB.]...
  • Page 143: Chapter 4 -- Description

    Chapter 4 -- Description --...
  • Page 144: Principles Of Measuring

    Principles of Measuring Principles of Measuring The measuring head measures a specimen, gets the color information from the specimen, converts it to one of the various display modes in the measuring head, and displays it. Also the data processor converts data to one of the various color space modes, displays it, and prints it. The measuring head is divided into the specimen measuring part which measures the reflected light from the specimen and the monitoring illumination part which directly measures the light from the λ...
  • Page 145: Illumination Optics

    Illumination Optics Illumination Optics of the CR-400 The CR-400 is designed in diffusion illumination 0º viewing angle geometry (specular component included). This illumination method illuminates the specimen from all directions using illuminants with almost completely equal brightness, and receives the reflected light vertically from the specimen surface.
  • Page 146: User Calibration

    CIE 1931 Wavelength (nm) CIE 1931 colorimetric standard Observer curves and spectral response of Minolta chroma meter In color difference measurement, the effects of this slight discrepancy in spectral response is within the scope of measurement accuracy, so it does not present a problem. However, in color measurement, depending on the color of the specimen to be measured, there are times when a slight discrepancy with the value (true value) gotten when measuring using an ideal prism sensitivity.
  • Page 147: Multi-Calibration Function

    <Multi-Calibration Function> The multi-calibration function is used to correct the assigned value using the calibration data in all the set calibration channels. It is therefore effective in providing an appropriate correction not only for the vicinity of the calibration target point but also for the value around it. However, since the correction effect becomes smaller for colors further from the calibration target point, more effective correction can be achieved by selecting a calibration target color which envelops the color to be measured.
  • Page 148: Error Messages

    Xenon lamp does not flash properly. • Xenon lamp has malfunctioned. • If the problem persists, contact your nearest ERROR • Flash circuit has malfunctioned. Minolta-authorized service facility. IN FLASHING • Faulty sensor • Redo white calibration and the measurement. ER06 Because of the excessively high reflectivity of •...
  • Page 149 SAMPLE TOO DARK • If the problem persists, contact your nearest specimen for measurement. Minolta-authorized service facility. • Repeat measurement. ER13 A/D conversion failed. • The A/D converter is broken.
  • Page 150: Troubleshooting

    If anything goes wrong with the instrument, take the appropriate steps shown in the table below. If the instrument still does not work properly, turn the power OFF, and then turn it ON again. If the symptom persists, contact your nearest Minolta-authorized service facility. Action...
  • Page 151 Symptom Check Point Action There are Is the measuring head placed vertically above Placed the instrument vertically not to leak light. the specimen? variation in the mea- surement Is the measuring head moving during measure- Do not move the instrument during measure- data.
  • Page 152: Specifications

    Specifications <Measuring Head> Name Chroma Meter Measuring Head CR-400 Head CR-410 Head Model Illuminating/viewing system d/o Diffuse illuminating/0º viewing Wide-area Diffuse illuminating/0º view- ing (specular component included) (speculer component included) Detector Silicone photo cells (6) Display range Y: 0.01 to 160.00% (reflectance)
  • Page 153 Wrist strap CR-A73, AC adapter AC-A17, 4 AAA size batteries Optional accessories Hard case CR-A103, RS-232C cable (for PC) CR-A102, Granular attachment CR-A50, CR-400 utility software CR-S4w, Color data software ChromaMagic CR-S3w Glass light projection tube CR-A33a, A33f Glass light projection tube A33e...
  • Page 154: Data Processor

    Y: 0.01 to 160.00% (reflectance) Measurement time 1 sec. 3 sec. Minimum measurement interval Battery performance Approx. 800 measurements (when using batteries under company testing Minolta’s conditions) Illuminants C, D65 Display Chroma values, color difference values, color difference graphs, PASS/WARN/FAIL display Tolerance judgment...
  • Page 155 Optional accessories Shoulder strap SS-01, Hard case CR-A103, Roll paper (5 rolls) DP-A22, RS- 232C cable (for PC) CR-A102, CR-400 utility software CR-S4w, Color data software ChromaMagic CR-S3w indicates that part of or all functions are not available when the measurement head is not connected.
  • Page 156: Dimensions

    Dimensions <Measuring Head> (Unit: mm) CR400外観図 CR-400 Head MEAS....
  • Page 157 (Unit: mm) CR410外観図 CR-410 Head MEAS....
  • Page 158: Data Processor

    Dimensions <Data Processor> (Unit: mm) DP-400 Delete Print Calibrate Undo Feed 1 2 3 ABC DEF Option Display Color Space 4 5 6 GHI JKL MNO Statistic Data List Page 7 8 9 PQRS TUV WXYZ Measure Esc Index Set Target...
  • Page 159 Minolta Co., Ltd. c 2002 Minolta. Co., Ltd. 9222-1878-11 ACLAPE(1) Printed in Japan. 3-13, 2-Chome, Azuchi-Machi, Chuo-Ku, Osaka 541-8556, Japan...

This manual is also suitable for:

Cr-410

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