Minolta CA-210 Manual
  1. Manuals
  2. Brands
  3. Minolta Manuals
  4. Measuring Instruments
  5. CA-210 -
  6. Manual

Minolta CA-210 Manual

Display color
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Display Color Analyzer
CA-210
Instruction Manual

Advertisement

Table of Contents
loading

Related Manuals for Minolta CA-210

Summary of Contents for Minolta CA-210

  • Page 1 Display Color Analyzer CA-210 Instruction Manual...

  • Page 2: Safety Symbols

    • 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 Minolta-authorized service facility. • MINOLTA will not accept any responsibility for consequences arising from the use of the instrument.

  • Page 3: Safety Precautions

    AC power cord from the AC power cord’s plug may cause a fire. If there is AC outlet, and contact the nearest Minolta-autho- any dirt or water on the prongs of the AC power rized service facility.

  • Page 4: Foreword

    Foreword Thank you for purchasing the Display Color Analyzer CA-210. This instrument is designed for measurement of color, intensity and flicker of various types of color displays including color LCD displays. Before using this instrument, please read this manual thoroughly.

  • Page 5: Cleaning

    If the optics of the probe gets dirty, wipe it with a soft dry cloth or lens cleaning paper. If it not possible to remove dirt from the instrument, contact a Minolta-authorized service facility. About This Manual This manual is designed for those who possess basic knowledge of LCD displays.

  • Page 6: Table Of Contents

    Contents Safety Precautions ..................................1 Foreword ....................................... 2 Notes on Use ....................................2 Notes on Storage ................................... 2 Cleaning ......................................3 About This Manual ..................................3 Manual Structure ......................................6 Names and Functions of Parts ..................................10 About Accessories ......................................13 Standard Accessories ..................................
  • Page 7 1. Measuring Principle ................................90 2. About T∆uvLv ..................................91 3. Principle of User Calibration ..............................92 4. Optical System of CA-210 Probe ............................93 5. Principle of Analyzer Mode ..............................94 6. Principle of Flicker Mode ............................... 96 Maintenance ......................................... 99 1.

  • Page 8: Manual Structure

    Explains how to select the measuring probe whose measured value is to be displayed. * Go to the Measurement section if you are going to perform measurement using To the Setting section P. 43-72 Minolta’s calibration standard and are not going to use analog display.
  • Page 9 Gives detailed explanations on memory channels common to each setting and target colors. When performing measurement using When performing measurement using When performing measure- Minolta 40 calibration standard user calibration ment in analyzer mode Selecting the Calibration Standard Select calibration data.
  • Page 10 This section explains measuring methods. From the Settings section Measurement Page 74 Explains measuring methods, how to hold the measured values and how to read them. White Balance Adjustment in Analyzer Mode Page 79 Explains how to adjust white balance. Selecting the Measurement Speed Page 82 Explains how to select the measurement speed suitable for the display to be measured.
  • Page 11 This section explains the following items. Measuring Principle Page 90 Maintenance Page 99 Dimension Diagram Page 100 Error Messages Page 101 Please read when an error message appears in the LCD display section. Breakdown Check Page 105 Please read when the instrument does not function correctly. Specifications Page 108 Measurement/Quick Guide...

  • Page 12: Names And Functions Of Parts

    Names and Functions of Parts Main Body <Front> 4 Measurement mode display section 1 POWER switch 3 Analog display section 5 LCD display section POWER CH01 EXT Ad P1 [EXT D-1.50] PQRS WXYZ MENU 2 Digital display LOCK section ALPHA White - SPACE MEMORY CH...
  • Page 13 Main Body <Front> 1 POWER switch ........• Used to turn ON and OFF the power to the instrument. (Page 29) Digital display section ......• Displays the measured values. 3 Analog display section ......• Displays the difference (%) between the measured value and the target color or the difference (%) between measured values.
  • Page 14 5 Plug ............• Connect this plug to the probe connector on the main unit or that on the optional 4-point expansion board (CA-B14). 6 CA-210 block cover ........ • Used to prevent entry of ambient light and help you place the probe at the appropriate distance (30 mm) from the display and perpen- dicular to it.

  • Page 15: About Accessories

    5 points on the display’s surface. Location of the explanation Installation method: Page 27 ［P2］ ［P3］ ［P4］ ［P5］ Measuring method: Measurement Preparation, Setting, Measure- Probe connector ment sections Grip CA-210 hood CA-H10 CA-210 lens cap CA-H11...

  • Page 16: About Measuring Probe

    About Measuring Probe Setting a Measuring Probe Two types of screws are provided to secure the measuring prove. Tripod screw: Used to mount the prove to a tripod. The screw depth is 6 mm. ISO screw: Used to mount the prove to a jig. An ISO screw (5 mm, depth: 6 mm) can be used. ISO screw (5 mm) Tripod screw ISO screw (5 mm)

  • Page 17: About Switching Ring

    About Switching Ring When you turn the switching ring, it stops at three positions (MEAS, 0-CAL, POINTER). To turn the ring, the stopper must be pulled toward you to unlock it. Switching ring MEAS : To perform measurement, the ring must be set in this posi- tion.

  • Page 18: Function Of Each Key

    Function of Each Key POWER CH01 EXT Ad P1 [EXT D-1.50] PQRS WXYZ MENU LOCK ALPHA White - SPACE MEMORY CH MODE REMOTE HOLD -CAL Green Blue ENTER Key Panel PQRS WXYZ MENU LOCK ALPHA White - SPACE Green Blue ENTER 1 0-CAL key ..........
  • Page 19 5 REMOTE key ........• Sets the instrument in remote mode (i.e. communication with the PC is possible via RS-232C or USB). (The REMOTE lamp will light up. See page 88.) • Pressing this key while the REMOTE key is lit will cancel remote mode.
  • Page 20 ⑥ Cursor key ( ) ........• Used to switch from one option to another in the PROBE, SYNC, Measurement Speed, Number of Digits, Calibration Standard and RS232C Baud Rate screens, which are opened from the menu se- lection screen. ⑦...

  • Page 21: About Display

    About Display 1 Measurement mode 4 LCD display section: CH00 EXT [MINOLTA 2 Digital display section 3 Analog display section * This shows when the entire display area is lit. (The LCD display section is not shown.) 1 Measurement mode ......... Displays the measurement mode in which the measured values are displayed.
  • Page 22 PAL, EXT, UNIV, INT) (Page 36) Displays the currently selected measurement speed. (A.F.S) (Page 82) Displays the calibration mode for the currently selected memory channel. (d.h.a.m) (Page 55) CH00 AdP1 Memory channel Probe no. (Page 41) (Page 46) [MINOLTA ID name display area (Page 65)
  • Page 23 : Not lit LCD display section : “OVER” When Lv (intensity) is below 0.10 cd/m Digital display section : blinking (white calibration equivalent to Minolta’s Analog display section, : The display contents blink. calibration standard) LCD display section When T∆uvLv measurement mode Digital display section : “–...

  • Page 25: Installation/Connection

    Installation/Connection This section explains how to install the instrument, connect AC power, turn ON/OFF the power, and input the vertical syn- chronizing signal. About Installation Provides operating environmental conditions for the instrument and notes Page 24 on installation. About Connection Explains how to connect measuring probes and connect the power cord.
  • Page 26 Doing so may result in a fire. For periodic inspection, contact a Minolta-autho- When disconnecting the AC power cord’s plug, al- rized service facility. ways hold the plug and pull it to remove it. Never...

  • Page 27: About Installation

    About Installation The operating environmental requirements are given in the “Specifications” of this manual. The instrument must be installed in a place that completely meets these requirements. (Page 108) <Notes on Installation> Using the instrument in direct sunshine in midsummer or near a heater will cause a rapid rise in its temperature resulting in breakdown.

  • Page 28: About Connection

    About Connection 1. Connecting a Measuring Probe Before setting the POWER switch to ON, a measuring probe must be connected to the probe connector [P1] on the instrument. [Connecting Method] Probe connector [P1] Set the POWER switch to OFF (“ ○ ” position). Insert the probe’s plug into the probe connector [P1], with the probe serial no.

  • Page 29: Installing The 4-Point Expansion Board Ca-B14

    2. Installing the 4-Point Expansion Board CA-B14 When the optional 4-point expansion board CA-B14 is used Installing the optional 4-point expansion board CA-B14 in the instrument allows simultaneous measurement of the colors or flicker at up to 5 points on the display’s surface. Install the expansion board as shown below. [Installation Method] Remove the cover of the 4-point expansion board slot.

  • Page 30: Connecting The Power

    3. Connecting the Power Power voltage range for the instrument — 100 to 240V [Connection Method] Main body Set the POWER switch to OFF (“V” posi- tion). Connect the AC power cord’s connector to the AC power connector on the instrument. AC power connector The AC power cord must be connected as shown in the figure.

  • Page 31: Turning The Power On/Off

    Turning the Power ON/OFF 1. Turning the Power ON ( | )/OFF (V V V V V ) Before setting the POWER switch to ON, prepare the following. Connect a measuring probe to the probe connector [P1]. (Page 26) • To synchronize measurement with the ... 1 Input the vertical synchronizing signal that is used for the display. display’s vertical synchronizing signal (Page 28) (EXT is selected as the SYNC mode)

  • Page 32: Instrument Status At Power-On

    Page 82 AUTO 9 Number of display digits Page 40 4 digits 0 Calibration standard Page 48 Minolta’s standard A RS232C baud rate Page 87 38400bps B Correction factor for user calibration Page 49 Minolta’s standard <Changing the Instrument Status at Power-ON>...
  • Page 33 Changing Method for parameter B B B B B For the setting method, refer to the page given in the above table. <About the REMOTE Key> The REMOTE key should not be pressed unless you are going to communicate with the PC via RS-232C or USB. •...

  • Page 35: Measurement Preparation

    Explains how to select the measuring probe whose measured value is to be displayed. To the Setting section * Go to the Measurement section if you are going to perform measurement using Minolta’s calibration standard and are not going to use analog display.

  • Page 36: Zero Calibration

    Zero Calibration Zero calibration performs zero point adjustment while blocking entry of light into the measuring probe’s receptor. Zero calibration must be performed whenever the POWER switch is set to ON. 1. Performing Zero Calibration <Notes on Zero Calibration> If the intensity of the display to be measured is 0.1 cd/m or less, perform zero calibration after elapse of 30 minutes or more after the POWER switch is set to ON.

  • Page 37: Zero Calibration Check Method

    <Error Messages in LCD Display Section> … For other error messages, refer to page 101. “TOO BRIGHT” (During zero calibration) The message ZERO CALIBRATION • Cause : Light is entering the measuring probe’s recep- switches automatically. tor. • Action : Block the light completely, and when “PUSH 0- TOO BRIGHT CAL KEY”...

  • Page 38: Selecting Sync Mode, Display Mode And The Number Of Display Digits

    Selecting SYNC Mode, Display Mode and the Number of Display Digits 1. Selecting SYNC Mode In SYNC mode, measurement time (sampling time) is selected according to the display’s vertical scanning frequency. The following five SYNC modes are available. Select the SYNC mode suitable for the TV or display to be measured. Display’s vertical Measurement time Vertical scanning...
  • Page 39 16 measurements/sec. * The measurement speed for EXT and INT when the vertical scanning frequency is 60 Hz is given. • Intensity of the display to be measured ... Maximum intensity by Minolta standard (CH00) • Display mode ........... xyLv •...

  • Page 40: Selecting The Measurement Mode

    <Error Messages in LCD Display Section> … For other error messages, refer to page 101. “NO SYNC. SIGNAL” (when EXT mode is selected) • Cause 1 : The vertical synchronizing signal used for the display is not connected to the terminal on the instrument.
  • Page 41 [Selecting Method] Press the MODE key to display the measurement mode you want to select. Measurment MODE key Each time the MODE key is pressed, measurement mode will switch as shown below. xyLv mode Analyzer mode (R reference) XYZ mode ∆x ∆R ∆x...

  • Page 42: Selecting The Number Of Display Digits

    3. Selecting the Number of Display Digits The number of display digits can be selected from 4 or 3. However, T is always displayed in three digits, and flicker is always displayed up to the first decimal place. [Selecting Method] PQRS WXYZ MENU...

  • Page 43: Selecting Probe No. When The Optional 4-Point Expansion Board Ca-B14 Is Used

    When the optional 4-point expansion board CA-B14 is used Selecting Probe No. Measurement will be performed simultaneously with all the connected measuring probes. However, the digital and analog display sections show only the measurement results taken by the one selected probe. Follow the procedure given below to select the probe connector No.

  • Page 45: Settings Section

    Page 46 Gives detailed explanations on memory channels common to each setting and target colors. When performing measurement When performing measurement When performing measurement in using Minolta calibration standard using user calibration analyzer mode Selecting the Calibration Stan- dard Select D or 9300K.

  • Page 46: Outline Of The Settings Section

    Available measurement methods and the settings that must be made are explained below. <Measurement by Minolta’s Calibration Standard> With this method, measurement is performed using Minolta’s calibration standard without calibration. Even if you are setting the target color to the memory channel CH00, measurement must be performed as ex- plained below.
  • Page 47 <Measurement by Analyzer Mode> With this method, the measured colors are expressed in luminous intensity of each R, B and G monochromatic light based on the display’s analyzer mode RGB luminescence characteristic (which is input to the instrument’s memory channel) and the target color (W). Since the target color is also set, the analog display section can show the deviation of the measured values from the target color.

  • Page 48: Before Making Each Setting

    (If xylv, TÉ¢uvLv, u'v'Lv or XYZ measurement mode is selected, the Minolta’s calibration standard will be used for measurement.) In the case of the same memory channels and probes, the RGB luminescence characteristic for analyzer mode is stored in their common memory irrespective of measurement mode.

  • Page 49: About The Target Color

    • When you want to set a color that differs from the color used for user calibration as the target color to a user-calibrated memory channel • When you want to perform measurement using Minolta’s calibra- tion standard without user calibration and want to use the analog display function 3 Inputting the RGB luminescence ....

  • Page 50: Selecting The Calibration Standard

    3. Selecting the Calibration Standard This section explains how to select the instrument’s calibration standard (D65 (6500K), 9300K). Selecting the instrument’s calibration standard will set the calibration standard for CH00 as well as for all the memory channels which have not been user-calibrated. [Selecting Method] PQRS WXYZ...

  • Page 51: User Calibration

    When this instrument is used for the first time since shipment from the factory, measurement will be performed based on the calibration carried out by the Minolta’s calibration standard. This applies to all the memory chan- nels. Once user calibration is performed, the following correction will be made when measurement is per- formed using the obtained correction factor.

  • Page 52: Performing White Calibration

    2. Performing White Calibration User calibration cannot be performed with the memory channel CH00. (CH00 memory channel is provided for measurement that uses the Minolta’s calibration standard.) White calibration must be performed for each display type (model). Characters of displays vary with the display type (model). Because of this, measured values differ even if the same color is measured.
  • Page 53 * If measurement is performed with non-user-calibrated memory channel for the first time since shipment from the factory, the Minolta’s calibration standard will be used for the measurement. * To change the target color you set, change it as explained in “1. Setting/Changing the Target Color by Measurement” (page 61). The currently set correction factor for white calibration will remain unchanged even if the target color is changed.

  • Page 54: Performing Matrix Calibration

    3. Performing Matrix Calibration Matrix calibration cannot be performed with the memory channel CH00. (CH00 memory channel is provided for measurement that uses the Minolta’s calibration standard.) Matrix calibration must be performed for each display type (model). Characters of displays vary with the display type (model). Because of this, measured values differ even if the same color is measured.
  • Page 55 [Preparation] Press the MODE key to select xyLv measurement mode. CH01 EXT Ad P1 Press the MEMORY CH keys until the memory channel where you want to perform user calibra- tion appears. A memory channel other than CH00 must be selected. Place the measuring probe against the display and take measurement.
  • Page 56 (For details, refer to page 71.) * If measurement is performed with non-user-calibrated memory channel for the first time since shipment from the factory, the Minolta’s calibration standard will be used for the measurement.
  • Page 57 The following alphabet will appear at the “*” position on the LCD display sec- CH01 EXT A* P1 tion according to the selected calibration mode. d : Matrix calibration with Minolta’s calibration standard D “*” position h : Matrix calibration with Minolta’s calibration standard 9300K a : White calibration (user calibration) m : Matrix calibration (user calibration) <Error Messages in LCD Display Section>...

  • Page 58: Analyzer Mode

    Analyzer Mode 1. About Analyzer Mode <What is Analyzer Mode?> Analyzer measurement mode is provided for adjustment of the display’s white balance. The measured colors are expressed in output of each R, B and G monochromatic light based on the display’s analyzer mode RGB luminescence characteristic (input to the instrument) and the target color (W).

  • Page 59: Inputting The Rgb Luminescence Characteristic For Analyzer Mode

    2. Inputting the RGB Luminescence Characteristic for Analyzer Mode The RGB luminescence characteristic for analyzer mode must be input to each memory channel. When it is input, the target color (W) must also be set. To adjust white balance, the values of the white-balanced white must be entered as the white color (W). If the RGB luminescence characteristic for the display’s analyzer mode is input to a memory channel for which the target color has already been set, the previously set target color will be deleted.
  • Page 60 Memory channel Press the MODE key to select analyzer measurement mode (RGB). CH01 EXT Ad P1 Press the MEMORY CH keys until the memory channel where you want to input the RGB lu- CH01 minescence characteristic appears. Press the key. The LCD display section will switch to the analyzer mode RGB lumi- nescence characteristic input screen.
  • Page 61 If the RGB luminescence characteristic for analyzer mode is input using a memory channel that has been matrix-calibrated, the correction factor for matrix calibration will be deleted. (Minolta’s calibration standard will be used for measurement if xyLv, T∆uvLv, u'v'Lv or XYZ measurement mode is selected.) In the case of the same memory channels and probes, the RGB luminescence characteristic for analyzer mode is stored in their common memory irrespective of measurement mode.

  • Page 62: Setting/Changing The Target Color

    The target color must be set in the following cases. • When you want to set the target color for memory channel CH00 • When you want to perform measurement using Minolta’s calibration standard without user calibration and want to use the analog display function •...

  • Page 63: Setting/Changing The Target Color By Measurement

    1. Setting/Changing the Target Color by Measurement [Operating Procedure] HOLD lamp When the optional 4-point expansion board CA-B14 is used Select the probe no. to which you want to set the target color. The target color can be set independently for each probe connector ([P1] to [P5]) for each memory channel.
  • Page 64 <Notes when Setting/Changing the Target Color by Measurement> Note that the target color is common to all measurement modes (xyLv, T∆uvLv, analyzer, u'v'Lv, XYZ). If the intensity of the display to be measured is 0.1 cd/m or less or if the ambient temperature has changed, zero calibration must be performed before setting the target color.

  • Page 65: Setting/Changing The Target Color By Entering Values

    2. Setting/changing the target color by entering values This method can be used for memory channel CH00 only. [Operating Procedure] When the optional 4-point expansion board CA-B14 is used Select the probe no. to which you want to set the target color. The target color can be set independently for each probe connector ([P1] to [P5]) for each memory channel.
  • Page 66 Enter target color values (x, y, Lv). For x and y, a value 10000 times the calibration value must be entered. Use the ten-key ( ) to enter the value. The cursor moves to the right each time a value is entered. CH00 x Lv P1 Each time the...

  • Page 67: Other Settings

    Other Settings 1. Setting an ID Name An ID name is a name that can be assigned to each memory channel by entering it directly using keys. When measurement is performed, the ID name is displayed together with the memory channel no. and probe connector no.
  • Page 68 In this example, “EXT D-1.50” is set as the ID name. 1 Press the key. CH01 EXT Ad P1 2 Press the key twice. “E” will appear at the cursor position. CH01 EXT Ad P1 3 Press the key twice. “X”...

  • Page 69: Setting The Analog Display Range

    2. Setting the Analog Display Range The analog display section displays the difference (%) between the measured value and the target color as well as the difference (%) between measured values in the case of a measurement mode other than flicker mode. In the case of flicker mode, the measured values will be displayed as they are.
  • Page 70 For analyzer mode (G reference) R − G × 100 (%) R/G = B − G × 100 (%) B/G = G − G ∆G = × 100 = G − 100 (%) For analyzer mode (R reference) R − R ∆R = ×...
  • Page 71 [Setting Procedure] Press the MODE key to select the measurement mode Menu selection screen MENU : SELECT for which you want to set the range. PUSH SPACE KEY Press the key. Range setting screen The LCD display section will switch to the menu selection screen. (For xyLv, T∆uvLv, u'v'Lv Press the key to open the RANGE setting screen.
  • Page 72 <Notes on Range Setting> The range settings will be kept even if the POWER switch is set to OFF. The specified analog range will be effective when the POWER switch is set to ON. The specified range settings are common to all the probe connector nos. and memory channels. Keys may not be operable if “OVER”...

  • Page 73: Settings Checking Method

    Settings Checking Method 1. Checking the Set Values <Checking the Specified Target Color> CH01 x y Lv P1 By pressing the MR key for less than two seconds in xyLv, T∆uvLv, u'v'Lv or XYZ M3189 4079 366.0 mode, the values of the target color for the currently selected memory channel is displayed in the LCD display section as shown on the right.

  • Page 74: Checking The Probe Serial No. When Making Settings

    By default (factory setting), “00000000” is set for both 1 and 2. • When “00000000” is set for 1 : If measurement is performed with this memory channel, Minolta’s cali- bration standard will be used for the measurement. (Same as when measurement is performed with the memory channel CH00.)

  • Page 75: Measurement Section

    Measurement Section This section explains measuring methods. From the Settings Section Measurement Page 74 Explains measuring methods, how to hold the measured values and how to read them. White Balance Adjustment in Analyzer Mode Page 79 Explains how to adjust white balance. Selecting the Measurement Speed Page 82 Explains how to select the measurement speed suitable for the display to be measured.

  • Page 76: Measurement

    This is not necessary if the instrument has already been set up or if you Settings section (page 43) are going to perform measurement using Minolta’s calibration standard and are not going to use the analog display function 1. Performing Measurement...

  • Page 77: Holding The Measured Values

    <Error Messages in LCD Display Section> ..For other error messages, refer to page 101. “OVER” • Measurement is not possible since the instrument’s measurement range OVER is exceeded by the measured value. In the case of analyzer mode, the instrument’s measurement range or display range (100,000%) is exceeded by the measured value.

  • Page 78: Displaying The Measured Values

    : “OVER” When white calibration is performed with When Lv (intensity) is below 0.10 cd/m : The display Minolta’s calibration standard Digital display section contents blink. Analog display section, measurement mode Digital display section (T and ∆uv) When T∆uvLv measurement mode is selected : “_ _ _”...
  • Page 79 <For Analyzer Mode> If analyzer measurement mode is selected, measurement results will be displayed as shown below. Digital display section • Display contents : R, B, G Outputs of the currently measured monochrome ∆G lights R, B and G in ratio (%) to those of the specified target color (W) •...
  • Page 80 The average intensity (Lv) is 0.1cd/m or equivalent and the maximum intensity (Lv) is 2000cd/m or equiva- lent in the case of white calibration with Minolta’s calibration standard. Vertical scanning frequency 40 to 130 Hz (Note) For measurement of flicker, make sure that the correct vertical synchronizing frequency is recognized by the instrument.

  • Page 81: White Balance Adjustment In Analyzer Mode

    White Balance Adjustment in Analyzer Mode <About Analyzer Mode> Analyzer measurement mode is provided for adjustment of the display’s white balance. The measured colors are expressed in luminous intensity of each R, B and G monochromatic light based on the RGB luminescence characteristic for analyzer mode (page 57) and the target color (W) which are set to the instru- ment.
  • Page 82 [Operating Procedure] Block entry of light Place the probe against the display Set the POWER switch to ON. Message displayed DARKEN PROBE when the POWER PUSH 0-CAL KEY Set the 0-CAL ring of the measuring probe switch is set to ON to the 0-CAL position.
  • Page 83 Adjust the white balance. Normally, white balance can be adjusted by performing cutoff and drive adjustment for the display. In this section, the method of adjusting the display’s color to the target color (W) is explained. The method is explained by taking the following cases where the measured values are as follows compared to the target color (W).

  • Page 84: Selecting The Measurement Speed

    Selecting the Measurement Speed <Selecting the Measurement Speed> Select the measurement speed according to your application. If the measurement speed is changed, display frequency of the measurement results will change accordingly. The measurement results are displayed at the following frequency. FAST mode Requires short measurement time, but measurement accuracy is not sufficient in the case of measurement of a low- intensity display.
  • Page 85 [Operating Procedure] PQRS WXYZ MENU LOCK ALPHA White - SPACE Green Blue ENTER Menu selection screen Press the key. MENU : SELECT The LCD display section will switch to the menu selection PUSH SPACE KEY screen. Measurement speed selection screen Press the key to open the measurement SELECT : M-SPD...

  • Page 87: Communications Section

    Communications Section This section explains communication with PC via RS-232C or USB. Communicating with PC via RS-232C Explains how to connect the RS-232C cable and select the RS-232C baud rate to enable two-way Page 86 communication with PC via RS-232C. Communicating with PC via USB Page 88 Explains how to connect the USB cable to enable communication with PC via USB.

  • Page 88: Communicating With Pc

    Communicating with PC This instrument allows two-way communication via RS-232C or USB. 1. Communicating with PC via RS-232C Before setting the POWER switch to ON, connect a RS-232C cable (foe 9-pin D-sub Female) to the RS-232C connector on the instrument. Refer to the following for the wiring diagram. [Connecting Method] Set the POWER switch to OFF.

  • Page 89: Selecting The Rs-232C Baud Rate

    2. Selecting the RS-232C Baud Rate The RS-232C baud rate can be changed according to the setting made on the computer that is used for remote measurement. [Operating Procedure] PQRS WXYZ MENU LOCK ALPHA White - SPACE Green Blue ENTER Press the key.

  • Page 90: Communicating With Pc Via Usb

    3. Communicating with PC via USB The USB cable can be connected/disconnected even if the power to the instrument is ON. However, in this manual, the power must be turned OFF before connecting the USB cable. [Connecting Method] Set the POWER switch to OFF. USB port Connect the USB cable to the USB port on the in- strument.

  • Page 91: Explanation Section

    Explanation Section This section explains the following items. Measuring Principle Page 90 Maintenance Page 99 Dimension Diagram Page 100 Error Messages Page 101 Please read when an error message appears in the LCD display section. Breakdown Check Page 105 Please read when the instrument does not function correctly. Specifications Page 108 Measurement/Quick Guide...

  • Page 92: Measuring Principle

    Measuring Principle 1. Measuring Principle This instrument uses sensors of a spectral sensitivity similar to the CIE 1931 color-matching function ( – – x λ, – yλ, – zλ) to measure RGB luminescence energy of a color display, and displays the results in xyLv, T, ∆uvLv, u’v’Lv, flicker or XYZ values.

  • Page 93: About T∆Uvlv

    2. About T∆uvLv If the instrument’s measurement mode is set to T∆uvLv, the following values can be displayed in the digital display section. • T : Correlated color temperature • ∆uv : Color difference from the blackbody locus • Lv : Intensity In T∆uvLv mode, colors are expressed in the correlated color temperature (T) and color difference from the black- body locus (∆uv), and the intensity is expressed in Lv.

  • Page 94: Principle Of User Calibration

    (R, G and B). Since the matrix correction factor obtained from Minolta’s calibration standard has been set, measured values calculated based on this factor will be acquired when this instrument is used for the first time since shipment from the factory.

  • Page 95: Optical System Of Ca-210 Probe

    4. Optical System of CA-210 Probe The optical system consists of an objective lens and optical fiber. Among the lights emitted from the LCD under measurement, only the lights that are emitted at within ±2.5 degrees perpendicular to the LCD are guided by the objective lens to the fiber. After being input to the fiber, the lights are divided into three portions, and each portion is received by a sensor that has a spectral sensitivity similar to the CIE 1931 color-matching function.

  • Page 96: Principle Of Analyzer Mode

    5. Principle of Analyzer Mode In analyzer mode, the luminescence characteristics of the display’s three monochrome lights (R, G, B) and the target color are set to the instrument’s memory. Once they are set, display’s screen colors obtained by measurement can be converted to luminous intensity of each monochromatic light and displayed.
  • Page 97 The above also applies when only monochrome light G is emitted as well as when only monochrome light B is emitted, and the outputs are shown in Figs. 3 and 4, respectively. y - λ z - λ λ Fig. 3 Outputs of Sensors – x λ, –...

  • Page 98: Principle Of Flicker Mode

    Two kinds of quantifying measurement methods are available: contrast method and JEITA method. With the CA-210 alone, the contrast method is possible. Use of the software supplied with the instrument also allows JEITA method. This section gives an outline of both quantifying measurement methods.
  • Page 99 (2) JEITA Method With the JEITA method, the amount of flicker does not depend on its frequency, and is calculated based on the AC and DC components of the measured intensity. However, human sensitivity to flickering starts to drop gradually at about 30 Hz, and when the frequency exceeds 60 Hz, it is no longer possible for humans to sense it.
  • Page 100 Frequency Hz Fig. 4 As shown in Fig. 4, when two or more frequency components (P0, Px1, Px2) exist, the maximum value among all the frequency components (Px1, Px2 in the case of Fig. 4) except for P0, that is the component of frequency 0, will be set as Px.

  • Page 101: Maintenance

    If the instrument gets dirty, wipe it with a soft dry cloth. Never use solvents such as thinner and benzene. If the measuring probe receptor’s objective lens gets dirty, wipe it with a soft dry cloth or lens cleaning paper. Should the instrument break down, do not try to disassemble it by yourself. Contact a Minolta-authorized service facility.

  • Page 102: Dimension Diagram

    Dimension Diagram <Main Body> POWER PQRS WXYZ MENU LOCK ALPHA White - SPACE MEMORY CH MODE REMOTE HOLD -CAL Green Blue ENTER <Measuring Probe> 47.4 MEAS 0-CAL POINTER ISO screw 88mm Tripod screw 98mm 108mm...

  • Page 103: Error Messages

    Error Messages The following error messages appear if the instrument does not operate correctly. The table below shows kinds of error message, their meanings (description) and corrective actions. Error Message Cause: (Description) Corrective Action • When xyLv or T∆uvLv measurement mode 1 Perform user calibration or set the target color.
  • Page 104 DATA ERROR POWER switch is set to ON, the instru- ment has broken down. Contact a Minolta-authorized service fa- cility. • Set the POWER switch to OFF. • The instrument’s memory is abnormal. MEMORY ERROR...
  • Page 105 Error Message Cause: (Description) Corrective Action • The connected probe or expansion board • Connect the correct probe or expansion INCORRECT PROBE CA100Plus PROBE： differs from the one used on the instrument. board. INCORRECT PROBE PROBE：CA100Plus INCORRECT BOARD CA200 BOARD： INCORRECT BOARD BOARD：CA200 (The indication in italics shows the model name of the probe or expansion board.) (Note) •...
  • Page 106 <Relationship Between Probe Serial No. and Error Message “E1”> If “E1” appears, the cause of the error can be located easily by checking the serial no. of the probe used to make settings and the current probe serial no. • Probe serial no. used for making settings : Displayed when the MR key is held down for two to four sec- onds.

  • Page 107: Breakdown Check

    If any of the following symptoms occur with the instrument, take the corrective actions given in the table below. If the instrument still does not operate correctly even if the necessary corrective actions are taken, the instrument might have broken down. Contact a Minolta-authorized service facility. When doing so, please inform them of the breakdown No.
  • Page 108 Break- Symptom Action Ref. Check Point down Odd measured Is the receptor of the measuring probe If it is dirty, wipe it with a soft dry cloth or values are dis- clean? lens cleaning paper. played. If the ambient temperature has changed, Is the ambient temperature stable? perform zero calibration.
  • Page 109 When the optional 4-point expansion board CA-B14 is used Break- Symptom Action Ref. Check Point down Probes P2 to P5 Is the 4-point expansion board installed Install it correctly. c a n n o t b e s e - correctly? lected.

  • Page 110: Specifications

    4-point expansion board CA-B14, Probe CA-P12(2m)CA-P15(5m), Hood CA-H10, Lens Cap CA-H11 *3 : Measurement of flicker (JEITA method) is supported by SDK software. *1 : The chromaticity and intensity are measured under Minolta’s *4 : Baud rate: 38400 bps condition (standard LCD is used).

  • Page 111: Measurement/Quick Guide

    Measurement/Quick Guide Before starting measurement, perform necessary preparations as explained in the Installation/Connection section (page 23). POWER switch <Zero Calibration> Page 34 1. Check that the POWER switch is set to ON. 2. Set the focus ring of the measuring probe to the 0-CAL position.
  • Page 112 From the Measurement Preparation section When performing measurement using Minolta calibration standard <Selecting the Calibration Standard> Page 48 Not required in the case of flicker measurement. 1. Press the key to display the menu selection screen. 2. Press the key to open the calibration stan- dard selection screen.
  • Page 113 From the Measurement Preparation section When performing measurement using user calibration <User Calibration> Page 49 Not required in the case of flicker measurement. 2. Performing Matrix Calibration Page 52 Not required in the case of flicker measurement. Cannot be performed with memory channel CH00. 1.
  • Page 114 From the Measurement Preparation section When performing measurement in analyzer mode <Inputting the RGB Luminescence Character- <Setting an ID Name> Page 65 istic for Analyzer mode> Page 57 Can be set to all the memory channels. Can be set to all the memory channels. 4,5,6,7 1.
  • Page 116  2002 Minolta Co., Ltd. Minolta Co.,Ltd. Radiometric Instruments Operations 9222-1891-11 3-13, 2-Chome, Azuchi-Machi, Chuo-Ku, Osaka 541-8556, Japan @@@@@(1) Printed in Japan...

Table of Contents