Minolta CR- 300, CR- 310, CR- 321, CR- 331, CR- 331C Chroma Meter Instruction Manual

‘CHROMA METER
CR-300/CR-310/
CR-321/CR-331/CR-331C
INSTRUCTION MANUAL
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Minolta Chroma Meters CR-300, CR-310, CR-321, CR-331, and CR-331C are compact tristimulus
color analyzers for measuring reflective colors of surfaces. Each Chroma Meter consists of the
respective measuring head and the Data Processor DP-301. The measuring head of the Chroma
Meter CR-300 has an 8mm-diameter measuring area and uses diffuse illumination and a 0° viewing
angle (specular component included) for accurate measurements of a wide variety of subjects. The
measuring head of the Chroma Meter CR-310 uses wide-area illumination and a 0° viewing angle
(specular component included), and has a 50mm-diameter measuring area to average the reading
over a wide area for measuring cloth or textured surfaces. Chroma Meter CR-321 has a 3mm
diameter measuring area and uses 45° circumferential illumination and a 0° viewing angle for
measuring precise areas of printed matter and other glossy surfaces. The measuring heads of the
Chroma Meter CR-331 (bidirectional illumination) and CR-331C (circumferential illumination) use a
45° illumination angle and 0° viewing angle for measuring glossy surfaces; their 25mm-diameter
measuring are asaverage the reading over a wide area to provide a more uniform response. All
five Chroma Meters have the following characteristics.
A puised xenon arc lamp in a mixing chamber provides illumination on the sample surface. Six
high-sensitivity silicon photocells, filtered to match the CIE (Commission internationale de l’Eclairage)
Standard Observer Response, are used by the meters double-beam feedback system to measure
both incident and reflected light. The meter thus detects any slight deviation in the light output by
the pulsed xenon arc lamp, and compensates automatically.
Absolute measurements can be displayed as Yxy (CIE 1931), L*a*b* (CIE 1976), L*C*H°, Hunter
Lab, or XYZ tristimulus values; color difference can be displayed as A(Yxy), A(L*a*b*)/ AE*ab,
A(L*C*H*)/ AE’ab, or Hunter A(Lab)/AE values. Data can be converted between color systems or
between absolute and difference measurements by the data processor, and each measurement can
also be printed out in all color spaces if desired. Either CIE llluminant C or Des lighting conditions
can be used for measurements. The Data Processor can based measurement calculations on all
calibration standards stored in memory (up to 20 different calibration standards can be stored) to
provide consistently high accuracy. For measuring color difference, up to 20 different target colors
may also be stored.
Data Processor DP-301 offers several different functions for greater convenience and versatility.
Up to 300 measurements may be stored in memory and memory can be divided into up to 20 pages;
each measurement is automatically stored at the time of measurement as both an absolute
measurement and a color-difference measurement. Data can be printed out at the time of
“measurement, in all color spaces, while it is displayed, or from memory at a later time. Statistical
calculations can be performed on all data in memory or on only the data on a selected page of
memory. Data can be output to a separate computer if desired, and the meter can be operated
by remote control. The Data Processor also includes a timer for automatic measurements at user-
selected intervals, plus an alarm to indicate when the color difference of a specimen is beyond preset
limits.
The meter is powered by six AA-size batteries or by the included AC adapter. Data is kept in
memory until cleared or changed by the user, even if the meter's batteries are removed or the AC
adapter is disconnected.
Please read and study this manual before using the Minolta Chroma Meter CR-300, CR-310,
CR-321, CR331, or CR-331C for the first time, and keep it handy for future reference.
WARNING
* DO NOT USE THIS INSTRUMENT IN AN EXPLOSIVE ATMOSPHERE, SUCH AS ONE CONTAINING
GASOLINE FUMES. USE IN SUCH AN AREA MAY RESULT IN AN EXPLOSION.
* DO NOT DISASSEMBLE THIS UNIT OR ATTEMPT TO REPAIR IT YOURSELF. THIS INSTRUMENT
CONTAINS HIGH-VOLTAGE ELECTRICAL CIRCUITS AND THERE IS A RISK OF ELECTRICAL
SHOCK IF THIS UNIT IS DISASSEMBLED BY UNQUALIFIED PERSONNEL.
Any necessary repairs should be done only by a Minolta-authorized service facility.
Caution
To avoid damage to the instrument, please note the following points:
* Do not subject the meter to shock or vibration.
* Do not press on or damage the liquid crystal display window.
* Do not operate the meter in places subject to high humidity or temperatures higher than 40°C
(104°F) (such as inside a closed motor vehicle), or lower than 0°C (32°F).
* Do not spill liquid on the meter; the meter is not waterproof. If a liquid is accidentally spilled on the
meter, wipe the meter dry immediately with a dry cloth.
* When disconnecting the AC adapter from the meter, pull on the plug. Never pull on the cord, as
doing so could damage the wires.
* When connecting a cord to or disconnecting a cord from the meter, be sure that the power switch of
the meter (and of the instrument, if any, at the other end of the cord) is at OFF
* Do not touch the connector pins or apply a strong force to the connector or connector pins.
* Do not operate this instrument in extremely humid areas or in extremely dusty areas.
* Do not leave the meter in places subject to high humidity or temperatures higher than 40°C (104°F)
(such as inside a closed motor vehicle), or lower than —20°C (—4°F).
CONTENTS
DESCRIPTION ........oiiiiiiii eee eben 1
WARNING oo eee eee eee eee eee eee eee e eee eee eee eee ever 2
O1 N 2
CONTENTS eee eee eee eee eee eee eee eee eee etree eres e ere an anna aan 3
NAMES OF PARTS ……….......…..……irrrrrerererereree ce rerrerrenrarana rare rra rar ren r aan ca rare area aan aa ee 4
SUMMARY OF OPERATIÓN........................iire. N 8
FUNCTIONS OF KEYS AND SWITCHES......................0000000000000 0000 eee eee anaes 11
DISPLAYS AND INDICATIONS...........................00000emeeiieereer ir e area eee, 14
Chromaticity Measurements…………………….………reriremenmennenntnnnnnnnn*nnnnnnnnnnnnnnnnnnnnnnnnmn 14
Color-Difference Measurements 0000 arr rreraarrensr rer rer ren annee ee eee 14
Error Indications …………………………….…........rrrrrrrennecansenen re rene mena anae nana enr enere nanas eee aera areas 15
OPERATION FLOWCHART …..........….…crrrrccrranseanentrrerrerarerranranranean ea nae ner e rene en en eaan ace 17
PREPARATIONS oie eee eer ees 18
Attaching Measuring Head to Data Processor .........................02.0000000 eee eee nccceee 18
POWER areeeee nee ERTEREEEEEREEERRRRRERRERRREE RER RRRREERREKEREKRREERERREERERRERRERRE EEE RER ER ana ee EE 19
Installing BASES ... cove eee eee eee eee eee eee eee eee as 19
Using AC Adapter.….…....….………….ereneenennnennmnnnnnnnnnnnnnnmnnnnnnnennnnnnnnnnnnnnnnnnnnmnn*enmün 20
Switching Power Off .….….........ssrsererrerresereerenerarerananeasanea nana erera eee eee eee eee, 20
Installing Paper...........................eeerierirrr e e rana een nrrenne ao iran rerean ren eee 21
Adjusting Viewing Angle of Display .................e....e..m.17.. e RAR RAR RAR rares rrrr scene rare ananas 22
>) Ca! eee eee eee eee, 23
Reset VAIUES........ciiiiiiiiii eee eee eee eee eee eee eee eee, 23
Setting Calendar/Clock .....................e.ee.eeeiiii eee eee ee eee eee eee eee ees 24
INDEXES een eee eee eee esse eraser eee een en ea 25
Changing INdEXES .……..……..……….…...…...crrrrarrcccrerararrassrrerr aan aeanasaarraasanennaner caserne ananas 25
CALIBRATION …....................rrcerrrrerennrarseerrranerrensanasasararasarrrenean race ananas annas anaana nana AS eran 27
Selecting Calibration Surfaces ……….……….…….….….….….….rrreenemenennnnennns…nnnnnnnnnnnnnn*n*n*nnn 27
Calibration to White Calibration Plate... en nera ren rar a e ee erees 28
Recalibration ..........................ereceeriicer DD ener nerrerene ener ereearen erre earrrrerranrereoreerreerereranenrereree. 29
Calibration to User-Selected Surfaces......................2 29m reee ere nee R EEE RER 30
Deleting Calibration Data............................000000000 0 ee re eerana eee eee eee eee eee eee 32
Manual Calibration-Channel Selection ........................1.e.e. 0000000000 ee eee eerie 33
Multi-Calibration........................ eee reee anDDrree erre nen een earee nene ene rrarerrarerererera tarea reeces 34
ABSOLUTE MEASUREMENTS ….........…..….….cscressrsersarerranassarreranren rentar er arre riterrreracioc ene. 35
DIFFERENCE MEASUREMENTS .....................eeeeeeeíír0eiieaco ee ere eee rare R EEE EEE ER EEE 37
Input of Target Colors .........................i....esíieserer ere eee nananrana ana sdana raser a rene 37
Taking Measurements ..................e.reevecerrerrece re e nenaa ce sra caen aan anne sara neana nada aan SA 40
AE"ab ALARM o.oo eet eee eee eee. 42
AE ALARM Output Socket ....................eeereiemiiirierici e e eee rene errrereree eee eee nein, 43
TIMER-CONTROLLED MEASUREMENTS........................ 0000000000 oe erre irene reo aerea 45
MEMORY ..........………rcccccrrcerssasesaesresrrnrentanrerrrenaanasaneaanA sara ar enr en raser ace ce rene na nana esta ares eeeeenees 47
PAGES cco TD 47
Data PrOtECL ..... ieee eee ee eee ere aera e eevee rarer errr 47
Recalling Data. een ran arareereneenen e reee ere rrarerrreecerenes 49
Temporarily Deleting Data from Memory .........................eeiecceriirei DN E II ID e 51
Recovering Data......................eeeeericeicanene nena eee reee errar ecrerrrrererererererrEEoee tears 53
Permanently Deleting Data from Memory ....................... nubnenenvererencarcaron o racece ronca entere oencaRrEeeA e 54
PRINTING DATA .......................10e0ee00rminire eee eee e e rare near nee ananas aan 55
At Time of Measurement .………….....…….….....…..ssssssrrerrrenercr ser ren snenrena ren cenasrerendaarran annee eaeeeesserennnnns 55
In A Color SPACES ..….................rsrsrcrececerenrerren rare narrarr an nenanamaadanranananae sara sea nana n ee 57
Displayed Data .........................—..e....eevercrrccerece recen e rare reine rene eerrara riera ear era 58
Data IN MBIMOTY coerce ee eee ee eee e eet s esses tree ee ee essere aren snrreeees 59
STATISTICAL CALCULATIONS ...........................emee anna ion anar eeree e er ereerenraarrrererarecees 61
DATA INPUT/OUTPUT ...................... 0000000 e eee eee e eee este ee eet e esas eee ees eee ee a, 64
RS-232C terminal eee eee eee eee eee eee eee RE 64
Data INPUL. cece eee eee eee eee eee eee eee ere eer r——aaaaaaaaaans 65
Data Output TO 66
REMOTE CONTROL N 72
BASE PLATE LOCK (CR-321).. i ee arenero 72
MEÉASURING SYSTEM ….......….….….........……rerrcsscercesranrenren eee eee eee eee eee eee eee eee eee eee, 73
COLOR SYSTEMS …........…..…..……......rrrcrrrerrerensrerennane serre rerrerrarsannersaresan nana nanan ne ce ren an nan naar ae 77
CARE AND STORAGE …...........….....……crerrrssrsannerneenraa care ce nana n een nent eranen rene nananae ne scene nn naar 81
TROUBLESHOOTING GUIDE ……..…..............cccercarcrerarrrrarar ana naane ere acarrr ere nr ane RER EEE 82
OPTIONAL ACCESSORIES .….......…..…..…..crcccasaaserr cree rrrrraca rare eee eee eee eee, 85
TECHNICAL DETAILS …..........…......…rrrccrararererrcasanenreranerrrrr cas aa ne rer rer ran ananas nana aa nana 86
NAMES OF PARTS
Measuring Heads
CR-310
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1. Cable connector 1. Cable connector
2. Cable 2. Cable
3. Measuring button 3. Measuring button
4. Ready lamp 4. Ready lamp
5. Tripod socket 5. Tripod socket
6. Light-projection tube 6. Light-projection tube
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NOTE: If the measuring head is changed, perform system reset (p. 23) before any other operation.
This manual is for Chroma Meter CR-300, Chroma Meter CR-310, Chroma Meter CR-321, Chroma
Meter CR-331, and Chroma Meter CR-331C. Chroma Meter CR-300 will be shown in most of
the illustrations in this manual.
CR-321
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Measuring button
Ready lamp
Light-projection tube
Baseplate
Baseplate lock
Cable connector
Cable
Measurement point
Target area
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CR-331/CR-331C
6 7
1. Cable connector
2. Cable
3. Measuring button
4. Ready lamp
5. Tripod socket
6. Light-projection tube
7. Optical-fiber-location mark*
8. Measuring-head supports
* CA-331 only
Data Processor DP-301
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PAPER DISPLAY TARGET ABS. COLOR
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COLOR DATA
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SET DISPLAYED DATA
DELETE
INDEX RECOVER
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RUSE ALL DATA
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Paper chamber
. Connector
Remote-control socket
AC-adapter socket
Printer
Display
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POWER switch
AE ALARM output socket
RS-232C terminal
Battery-chamber cover
Viewing-angle adjustment lever
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SYSTE M DIAG RAM AC Adapter AC-A10 (AC-A10 worldwide except N. America ; AC-A10 N in N. America)
Adapter Cord MA-A10*
Adapter Cord MA-A11* CR-300 CR-331C
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Thermal paper CR-321
DP-A21* —
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Data Processor DP-301
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Glass Light-Projection Tube | J
CR-A33f* (for CR-300)
Calibration Plate Calibration Plate Calibration Plate Calibration Plate
CR-A43 CR-A44 CR-A45 CR-A46
(for CR-300) я (Юг СВ-310) {for CR-321) (for CR-331,CR-331C)
L_ 1
Granular-Materials
Color tiles
Attachment CR-A50*
Glass Light-Projection Tube
CR-A33e"tfor CA-310)
Pivoting Base CR-A12* FR.
Case CR-A60 (for CR-300) .
| = Case CR-A61 (for CR-331,CR-331C)
DD | Case CR-A63 (for CR-321) U
Case CR-A64 (for CR-310)
7 PS
\ J Shoulder Case CR-A62*
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*Optional accessories
SUMMARY OF OPERATION
Preparations
1. Insert cable connector of measuring head into the connector on the back of the Data Processor.
Be sure that the connector is positioned correctly. Tighten the two screws of the connector until
snug.
2. Install six AA-size batteries in the battery chamber in the bottom of the Data Processor. Be sure
that the battery positions are correct.
3. Install a roll of thermal paper in the paper chamber of the Data Processor as follows:
a. Slide POWER switch of Data Processor to ON.
b. Remove cover of paper chamber and start paper leader into the slot at the bottom front of the
paper chamber.
C. Press and hold PAPER FEED until paper comes through printer.
d. Replace cover of paper chamber.
Operation
INDEX SET: Displays menu of functions; use Y/N to change settings.
1. Press INDEX SET.
“Print: Y (automatic printing after each measurement)/N (no automatic printing)
“Color Space: N (printout only in color space in use)/Y (printout in all available color spaces)
2. Press, () (scroll key).
“Data Protect:” N (after 300 measurements, further measurements will write over oldest
measurement)/Y (measurement data not stored after 300 measurements have been taken)
“Multi Measure:” N (one measurement taken when MEASURE or measuring button is pressed)/
Y (three measurements taken and averaged when MEASURE or measuring button is
pressed; average used as measurement data)
3. Press €) (scroll key).
“Multi Cal.:” N (measurement will be based on calibration channel selected by user)/ Y
(measurement will be based on all calibration channels in which calibration data has been
stored)
“ch00” (calibration channel; displayed only when the “Multi Cal.” index set to “N”; select using
number keys)
4. Press () (scroll key). |
“Light Source:” C (CIE Illuminant C)/Des (CIE liluminant Des); select using =/> (cursor keys).
5. When all indexes have been set as desired, press ENTER.
CALIBRATE: Set white calibration data, then take measurement.
1. Press CALIBRATE.
2. Use the number keys to input the Y, x, and y values of the calibration data (shown on the inside
cover of the included Calibration Plate) for the “Light Source” index setting (C or Des) being used. If
no value is given for a decimal place, skip that space using <“/=> (cursor keys).
3. After numbers have been input, place the measuring head on the white calibration plate and press
MEASURE or the measuring head’s measuring button. Three consecutive measurements will be
taken; do not move measuring head until all three measurements have been completed. The
calibration data which was input will be stored in memory.
TARGET COLOR SET: Set target color data by measurement or by inputting data.
1. Press TARGET COLOR SET.
2. Select target color number. Also set calibration channel if “Multi Cal.” index is set to “N” or if target
color data will be input using number keys.
3. Place measuring head on target specimen and press MEASURE or measuring head's measuring
button. One measurement of the specimen will be taken and the data stored in memory.
OR
If the values of the target color data are known, use the number keys and «=/=> (cursor keys) to
input the data directly. After inputting the data, press ENTER.
8
TARGET COLOR SELECT: Selects target color to be used for color-difference measurements.
1. Press TARGET COLOR SELECT.
2. Use <=/> (cursor keys) and number keys to select target color number.
COLOR SPACE SELECT: Selects the color space to be used for measurements; displayed measure-
ment data is automatically converted to the new color space. Color space changes in the
following order each time COLOR SPACE SELECT is pressed:
ABS. mode: Yxy— L'a*b* >L*C*He>XYZ-— Hunter Lab—>Yxy...
DIFF. mode: A(Yxy)— A(L'a*b*)— A(L°C*H*)— Hunter A(Lab)— A(Yxy)...
* in A(L'a*b*) and A(L‘C*H*) color spaces, AE*ab is also displayed; in Hunter A(Lab) color space,
AE is also displayed.
AE ALARM SET: Set AE" limit value so meter will sound alarm and output signal when measured
data vary from the target-color data by more than the AE*ab limit value.
1. Press AE ALARM SET.
2. Select the target color number for which the AE*ab alarm will be set.
3: Use <“/> (cursor keys) to move the cursor under the “N” of “Alarm:N”
4. Press Y/N to change setting to “Alarm: Y”.
5. Use <“/*> (cursor keys) to move the cursor under the ( . ) and use the number keys to set the
AE" ab value (up to 99.99).
6. When setting has been completed, press ENTER.
TIMER/CLOCK: Timer can be used for automatic measurements at selected intervals; clock includes
a calendar and 24-hour clock.
To use timer:
1. Press TIMER/CLOCK.
2.Press Y/N to set “t=Y".
3. Use <=/> (cursor keys) to move the cursor under the first digit of “| =00” and use number keys
to set the interval time (up to 99); to change unit of time (“S” for seconds, “M” for minutes), use
«=/=> (Cursor keys) to move cursor under present time-unit setting and press ( ) (scroll key).
4. When setting has been completed, press ENTER.
5. Position measuring head on specimen and press MEASURE to start automatic measurements with
interval timer. Press BREAK to stop automatic measurements.
To set calendar/clock:
1. Press TIMER/CLOCK. |
2. Use <=/=> (cursor keys) to move cursor to bottom line of display.
3. Use number keys and <=/> (cursor keys) to set correct month (M), day (D), and time (in 24-hour
format).
4. When setting has been completed, press ENTER.
STATISTIC: Calculates the maximum, minimum, mean, and standard deviation of measurement data
in memory.
1. Press STATISTIC.
2.Use <=/> (cursor keys) and number keys to set the page number of data to be used for
calculations; to use all data for calculations, use <=/=» (cursor keys) and SPACE to set page
number to blanks.
3. Press COLOR SPACE SELECT repeatedly to select the desired color space.
4. Press ABS./DIFF. to select absolute or color-difference data for calculations.
5. Press ENTER.
STORED DATA LIST: Depending on the selected operation, recalls data from memory to the display,
prints out data in memory, or outputs data in memory through the RS-232C terminal.
To recall data from memory to the display:
1. Press STORED DATA LIST.
2. Press () (scroll key) repeatedly until “Display” is shown in the bottom line of the display.
3. Press ABS./DIFF. to select recall of absolute or color-difference data.
4. Use €“/> (cursor keys) and number keys to set the page number from which data will be recalled:
to recall data from all pages, use <=/> (cursor keys) and SPACE to set page number to all
blanks.
5. Press ENTER.
To print out data in memory:
1. Press STORED DATA LIST.
2. Press () (scroll key) repeatedly until “Print Out” is shown in the bottom line of the display.
3. Press ABS./DIFF. to select printing of absolute or color-difference data.
4. Use <=/> (cursor keys) and number keys to set the page number from which data will be printed;
to print data from all pages, use *=/=» (cursor keys) and SPACE to set page number to all blanks.
5. Press ENTER.
To output data in memory:
1. Press STORED DATA LIST.
2. Press () (scroll key) repeatedly until “Output” is shown in the bottom line of the display.
3. Press ABS./DIFF. to select output of absolute or color-difference data.
4. Use «=/=> (cursor keys) and number keys to set the page number from which data will be output;
to output data from all pages, use *=/> (cursor keys) and SPACE to set page number to all blanks.
5. Press ENTER.
PAGE: Closes present page and starts new page.
1. Press PAGE.
2. Press ENTER to complete page change; to cancel page change, press BREAK.
* It is not possible to return to a page and add data once that page has been closed.
ALL DATA CLEAR: Deletes from memory all measurement data, or all data, including calibration and
target-color data.
To delete all measurement data:
1. Press ALL DATA CLEAR.
2. Press ENTER. |
To delete all data, including calibration and target-color data:
1. Slide POWER switch to OFF.
2. Wait a few seconds.
3. Slide POWER switch to ON while holding ALL DATA CLEAR pressed.
Do not release ALL DATA CLEAR until tone sounds.
DISPLAYED DATA DELETE/RECOVER: Temporarily deletes displayed data from memory; recovers
temporarily deleted data if pressed again.
For more detailed information on any of these operations, refer to the appropriate section in this
manual.
10
FUNCTIONS OF KEYS AND SWITCHES
PAPER DISPLAY CARGET ABS. COLOR
TEED PRINT SELECT DIFF. SELECT
1 2 20 21 22
r A
CALIBRATE 3 STATISTIC
4
5
AT
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SET
| ©
DISPLAYED DATA
ENTER
DELETE
23 RECOVER
INDEX
-
WYSE 10 FALL DATA < / +
| 11 18 MEASURE
\, J N
1. PAPER FEED
Advances paper through printer.
2. DISPLAY PRINT
Prints data or message shown in display.
3. CALIBRATE
Enters calibration mode. Channel to be calibrated can be selected and calibration data can be
checked or changed. Data set immediately after this key is pressed will be stored in the
selected calibration channel when calibration surface is measured.
4. STATISTIC
Prepares Data Processor for calculation, output, and printing of the maximum, minimum, mean,
and standard deviation values of data in memory.
5. TARGET COLOR SET
Enters mode for setting target color data. Target color number can be selected and the target
color data can be input by measurement or by using number keys.
6. STORED DATA LIST
Prepares Data Processor for recall, printing, or output of data stored in memory. After pressing
this key, the desired function can be selected using €) (scroll key).
7. AE ALARM SET
Displays settings of AE*ab alarm function. Settings can be checked or changed while displayed.
8. PAGE
Prepares Data Processor to close present page and start new page. Present page number, next
page number, and remaining number of measurement spaces in memory are displayed if
“Data Protect” index is set to “Y” and present page number is less than 19; present page
number and next page number are displayed if “Data Protect” index is set to “N” (all data
previously stored on next page will be deleted if page change is completed).
9. INDEX SET
Displays indexes. Settings can be checked or changed while displayed.
10 TIMER/CLOCK
Displays settings of timer function, calendar, and clock. Settings can be checked or changed
while displayed.
11. ALL DATA CLEAR
Prepares Data Processor to delete all measurement data in memory.
Performs system reset if held pressed while sliding POWER switch from OFF to ON.
12.Number keys
Set numerical data directly from keyboard.
13. Y/N
Changes “Y” (yes) to “N” (no) or “N” to “Y” when changing index, timer, or AE*ab alarm
functions.
14. + /-
Changes “+” to “—” or “—” to “+” when setting calibration data in L‘a*b* color space and
target-color data in L‘a*b* or Hunter Lab color space.
15. ( (scroll key)
Advances display through indexes when indexes are displayed.
Changes interval-time unit from “S” (seconds) to “M” (minutes) or from “M” to “S” when timer
function is displayed.
Selects whether data in memory will be recalled to the display, printed out, or output via the
RS-232C terminal after STORED DATA LIST has been pressed.
Stops display change when data is recalled from the memory to the display.
16.ENTER
Completes process being performed; stores applicable settings in memory.
17. BREAK
Interrupts and cancels function in process; returns display to measurement mode; previous
settings are retained.
18. <=/> (cursor keys)
Moves cursor to previous or next available space which can be set by the user.
Causes the display to show the previous or next set of measurement data in memory when
recalling data to the display; if held pressed until tone sounds when recalling data to the
display, causes display to automatically and continually change to previous or next
measurement data every 0.5 seconds.
19. SPACE
Replaces data above cursor with a blank space when setting numerical data.
*When page number is set to all blanks after pressing STORED DATA LIST or STATISTICS,
the selected operation will be performed on all pages of memory.
12
20. TARGET COLOR SELECT
Selects the target color number containing the target color data to be used for color-difference
measurements.
21. ABS./DIFF.
Selects absolute (ABS.) or color-difference (DIFF.) measurement mode.
22. COLOR SPACE SELECT
Selects the color space to be used for measurements. Color space changes in the following order
each time COLOR SPACE SELECT is pressed:
ABS. mode: Yxy > L'a*b* >U*C*H9 >XYZ> Hunter Lab>Yxy...
РОТЕ. mode: A(Yxy)> A(L‘a*b*)— A(LC*H*)> Hunter A(Lab)> A(Yxy)...
in A(L‘a*b*) and A(L*C*H*) color spaces, AE*ab is also displayed; in Hunter A(Lab) color space,
AE is also displayed.
23. DISPLAYED DATA DELETE/RECOVER
Temporarily deletes displayed data from memory when pressed once; recovers data if pressed
while measurement number for which data was temporarily deleted is displayed.
24. MEASURE
Takes measurement and/or starts timer-controlled measurements.
13
DISPLAYS AND INDICATIONS
Chromaticity Measurements
Yxy
В. 28
2156
EE 5
[Ë „емо Оч, АВ
Measurement number
L*C*H9
SES CE 2 LO ra. 46
С SE, 43 Не a =
XYZ
ВЕ EEE
1 RS SPA A AE AL
al ted PO PA
Hunter Lab
E HL E. 10
ezo qu...
E a
b+15, 46
Y = 80.54
(% reflectance)
х = 0.3120
у = 0.3180
||“ = 84.56
(Metric lightness)
a* = +53.42
b*= — 12.36
(R) = Munsell hue
notation (‘Light
Source: C only)
L* = 75.46
(Metric lightness)
С* = 80.43
(Metric chroma)
H9=23.5
(Metric hue angle)
X = 37.56 (% reflectance)
Y = 39.88 (% reflectance)
Z = 27.49 (% reflectance)
L =63.15 (lightness)
= —4.35
b= +18.40
14
Color-Difference Measurements
Tai larget-color number
“ho + Calibration channel
GES TEL Y +5, 33
= +. 0034 we, BEES
A (L*a*b*)
ва? Lab THE
ches
E 6,5 Lo +. Zeh
а +3,51 © +3, Z1
Hunter A(Lab)
889 Hiab TW
che
E 15.97 HL -7,79
a —-1.d8 b+13,51
AY = +5.33 (%)
Ах = + 0.0034
Ау = - (0.0025
AE* as = 6.80
AL* =+5.33
Aa” +421
Ab" +0.21
5.78
+ 4.33
= + 3.57
= — 1.95
AE” ab
AL*
AC*
AH*
AE =15.97
AL = —7.79
Aa = —3.48
Ab = +13.51
Error Indications
РЕЯ
CAL Flease |
Calibration channel 00 has not been calibrated. Calibrate to standard white plate before proceeding.
Charros Esttery
Battery power is almost exhausted and measurement cannot be taken. Replace batteries with new
ones or use AC Adapter AC-A10 (worldwide except N. America) or AC-A10N (in N. America).
Charas not Ready
The lighting circuit has not finished charging. Wait until ready lamp is lit before pressing MEASURE or
measuring head's measuring button.
Check © onrsecthar
— - em —
Measuring head and Data Processor are not connected properly. Slide POWER switch to OFF and
reconnect properly.
Dats Set Error
Data which cannot be used has been set.
Calibration or target-color data are not within the allowable range. Values which cannot be set
include:
In Yxy color space:
Either x or y=0.
Both x and y <0.09
х+у 21
Y > 120%
У = 0
In L*a*b* color space:
L* > 107.26
a” or b* > 199.99
L*<009
In Hunter Lab color space:
L> 109.54
L<0.36
Other settings which exceed the calculation capacity of the data processor.
Nonexistent time setting for clock or timer (e. g., time > 23:59:59)
Nonexistent date setting for calendar (e. g., month > 12)
If this display occurs, check data and change if necessary.
Illumination
Error
The pulsed xenon arc lamp did not illuminate specimen properly. Take measurement again; if this
message continues to be displayed, contact the nearest Minolta-authorized service facility.
HO Data Разе xa
The indicated page contains no data (when attempting to recall, print, or output data in memory).
Select a page which contains data.
15
There is no data in the selected color space and measurement mode on the selected page (when
performing statistical calculations). Select a different color space, measurement mode, or page.
MO For
= Cata
Li Fas
=
The selected page contains no more data.
НО Store
PAE
The number of stored measurements has reached 300 and the “Data Protect” index is set to “Y”.
The present measurement will not be stored and page cannot be changed. If it is not necessary to
keep the presently stored measurement data in memory, set “Data Protect” index to “N” (oldest
data in memory will be replaced by data for new measurements) or delete all measurement data in
memory by pressing ALL DATA CLEAR.
Lua" Fog
Calculations for the measurement exceed the calculation capacity of the Data Processor, possibly due
to incorrect calibration. Recalibrate meter and take measurement again. If this display reappears, the
specimen cannot be measured with the Chroma Meter.
Fase End
“Data Protect” index is set to “Y” and present memory page number is 19. If it is desired to change to
page 00 and it is not necessary to keep presently stored data, set “Data Protect” index to “N”.
samreiloe Too Dark
Reflectance of specimen is too low for measurement with the Chroma Meter.
Ta
HO Target Color
No target-color data has been stored in the selected target-color channel. Store target-color data in
the selected target-color channel or choose another target-color channel.
Less Another
Color Sracs
Color space is set to ЦС*Н° when inputting target-color data using number keys. Change to a
different color space to input target-color data using number keys.
16
OPERATION FLOWCHART
Preparation
Calibration
Measurements
p.18
Attach measuring head
Y
p.19
Install batteries or connect AC adapter
|
p.21
Install paper
Y
p.22
Adjust viewing angle of display
Y p.23
Perform system reset (if using for first time)
| p.24
Set calendar/clock
Ÿ p.25
Check indexes (change if necessary)
\
/ y p.28
p.30
Calibrate to white calibration plate (chQ0) —
Calibrate to user-selected surfaces {ch01 to ch19)
Y
p.29
Recalibrate (at start of measurement session)
N
/
Absolute
measurements
p.35
Take measurements
$m
17
Difference measurements y p.37
Set target-color data
Ÿ p.40
Take measurements
PREPARATIONS
Attaching Measuring Head to Data Processor
Connect the CR-300 series measuring head to the Data Processor DP-301 according to the steps
below.
1. Check that POWER switch is at OFF.
MEN =
EET CLE
POWER
ON OFF
mui
2. Align the cable connector with the connector of the Data Processor
and push the cable connector into the connector of the Data
Processor in a straight line as shown.
* The connectors can be put together in only one orientation. Do not
force the connectors together.
* Be sure to push the connectors together in a straight line to avoid
damaging them.
3. Tighten the two screws of the cable connector by turning them
clockwise as shown.
* The screws should be tightened only until snug. Do not overtighten
them.
Ulinananeonnal ii?
* To avoid damaging the connectors, the measuring head, or the
Data Processor, do not touch the connecting pins.
¢ Protect connectors from dust, moisture, etc.
To disconnect the two units, reverse the above procedure. Be sure
that the POWER switch is at OFF before disconnecting.
18
Power
CR-300 series Chroma Meters can be powered by either six AA-size batteries installed in the
Data Processor or by the AC Adapter AC-A10 connected to an AC outlet.
INSTALLING BATTERIES
1. Slide the POWER switch to OFF.
2. Turn the screw of the battery-chamber cover counterclockwise as -
shown and open the battery-chamber cover.
3. Install six AA-size alkaline-manganese, carbon-zinc, or nickel-
cadmium batteries in the battery chamber with their polarities as
indicated inside the chamber.
* Do not mix battery types.
4. Close the battery-chamber cover and tighten the screw of the u
battery-chamber cover by turning the screw clockwise as shown. m*
E
de
19
USING AC ADAPTER
AC Adapter AC-A10 (220V AC input) or AC-A10N (120V AC input) is included as a standard
accessory with CR-300 series Chroma Meters. The AC adapter can be used with or without batteries
installed in the battery chamber of the Data Processor.
* If the AC adapter is to be used for extended periods of time, the batteries should be
removed from the battery chamber. |
* Do not use AC adapters other than the AC-A10 (220V AC input) or AC-A10N (120V AC input)
to supply power to the Data Processor DP-301.
To use AC Adapter:
1. Slide the POWER switch of the meter to OFF.
_TIMER nL
CLOCK CLE
Ne
POWER
ON OFF
—
2. Insert the output plug of the AC adapter into the AC-adapter socket
of the Data Processor.
AC-adapter socket
3. Plug the AC adapter into the AC outlet.
SWITCHING POWER OFF
To avoid memory errors or other problems, the POWER switch should be slid from ON to OFF
only while the meter is in measurement mode. If the meter is not in measurement mode, press
BREAK repeatedly until the measurement mode display is shown.
20
Installing Paper
The Data Processor uses a thermal dot-matrix printer for operation without an ink ribbon.
1. Slide the POWER switch to ON. | ии E
POWER
°{ Jo
«if
2. Press on the paper-chamber cover at the area labeled PUSH and
remove the paper-chamber cover.
3. Pull out a short length from the roll of thermal paper and trim the
tip as shown. ~ 90°
©
4. While holding the roll of paper as shown, insert the tip of paper into >»
the slot at the bottom front of the paper chamber and press and
hold PAPER FEED.
* Be sure the inner surface of the paper faces the printer. =
AP BN DISPLAY
PRINT
` | }
FY
21
5. When the tip of the paper comes out of the printer, release PAPER
FEED.
6. Put the roll of thermal paper into the paper chamber and replace
the paper-chamber cover.
[13]
e Thermal paper is not suitable for long-term storage. If the printed data is to be kept for a
long period of time, it is suggested that photocopies be made.
e if thermal paper whose color has changed due to age and storage conditions is used for
printing, the printed characters may be difficult to read. For this reason, it is recommended
that the thermal paper used be as new as possible.
Adjusting Viewing Angle of Display
The appearance of the liquid crystal display varies according to the angle from which it is viewed.
The viewing-angle adjustment lever on the bottom of the Data Processor may be used to set the
display for easiest viewing. |
©
A |- | Viewing-angle adjustment lever
e When the power of the batteries becomes somewhat low (but not low enough to cause
“Change Battery” to appear), the display may become difficult to see. Move the viewing angle
adjustment lever for easiest viewing. Operation of the meter can continue until “Change Battery”
appears in the display.
22
System Reset
When using this unit for the first time, or when it is desired to reset all functions and delete all
data for calibration, target colors, and measurements, follow the steps below.
1. While holding ALL DATA CLEAR pressed, slide the POWER switch
from OFF to ON. Do not release ALL DATA CLEAR until the tone
sounds.
* |f the POWER switch is already at ON, slide switch to OFF and
wait a few seconds before performing step 1.
2. When initial setting has been completed, the display shown at right
will appear.
ME
CLOCK
ALLTDATA
- CLEAR
POWER E
Mi
Initial Set GE
CR-366 Series
When system reset is performed, all calibration data, target-color data, and measurement data
will be deleted and all functions will be reset as shown below.
RESET VALUES
General Operation:
Color space:
ABS. /DIFF.:
Calibration:
Target color:
Page:
Indexes (see p. 25):
“Print”:
“Color Space”:
“Data Protect”:
“Multi Measure”:
“Multi Cal”:
“Light Source”:
Уху
ABS.
ch00
TOO
РОО
OZ ZZZ<
AE*ab Alarm (see p. 42)
Timer (see p. 45)
“t=" (timer):
“I="" (interval):
Data List (see p. 49)
Statistics (see p. 61)
Color space:
“Alarm”:
“dev E”:
End time:
Function:
ABS. /DIFF:
Page:
ABS. /DIFF.:
Page:
N
blank
N
00S
blank
Print Out
ABS.
POO
Yxy
ABS.
РОО
* Date and time settings of calendar/clock are not reset when system reset is performed.
23
Setting Calendar/Clock
The Chroma Meter has a built-in calendar/clock which should be set by following the steps below.
1. Press TIMER/CLOCK. The display shown at right will appear.
2. Use <=/> (cursor keys) to move the cursor to the first digit of the
month setting. Set present date and time by using the number
keys and SPACE. Cursor will automatically move to the right after a
number key or SPACE is pressed. Time should be set in 24-hour
format (e. g., 1:00:00PM would be set as “13:00:00”). After last
digit of time is set, cursor will return to the present setting of “t="
in the upper left corner of the display.
* Although the internal clock continues to run, clock display will be
halted while date and time are being set.
3. Press ENTER. The display shown at right will appear for about
three seconds before changing to the measurement-mode display.
* Calendar/clock setting can be checked by pressing TIMER/CLOCK.
* To return to the measurement display without resetting the calendar/
clock, press BREAK.
24
t=H
EMSID 15:
INDEXES
The Chroma Meter has six indexes for controlling certain functions. These indexes and their
functions are shown below.
Index Setting Effect
“Print” Y Measured data are automatically printed out and output after each
measurement.
N Measured data are not automatically printed out but data are still
output after each measurement.
“Color Space” Y Measured data are output (and printed out if “Print” index is set to “Y”)
in all color spaces.
N Measured data are output (and printed out if “Print” index is set to “Y”)
only in the color space shown in the display.
“Data Protect” Y New data are not stored and page cannot be changed after measure-
ment number equals 300; new page cannot be started after page
number equals 19.
N If measurement number is greater than 300, the oldest data in memory
will be replaced by the newest measurement data; if more than one
page is used, all data previously stored in the oldest page will be
deleted as necessary or when a new page is created by pressing
PAGE and then pressing ENTER.
“Multi Measure” Y Three readings are automatically taken and averaged when MEASURE
or measuring head’s measuring button is pressed; average values used
as measurement data.
N A single reading is taken to determine measurement data when
MEASURE or measuring head's measuring button is pressed.
“Multi Cal.” Y Measurement calculations are based on all calibration channels in
which data is stored.
N Measurement calculations will be based only on the calibration channel
selected by the user.
“Light Source” C CIE Standard llluminant C is used for measurement.
Des CIE Standard llluminant Des is used for measurement.
Changing Indexes
Indexes may be changed at any time by following the steps below.
1. Check that the POWER switch is at ON. |
TIMER
CLOCK
Feel
POWER
DD
«fia
25
10.
Press INDEX SET. As shown at right, the “Print” and “Color
Space” indexes will appear in the display, followed by their present
settings.
Use <=/> (cursor keys) and Y/N to change settings if desired.
Press () (scroll key). As shown at right, the “Data Protect” and
“Multi Measure” indexes will appear in the display, followed by
their present settings.
Use <=/> (cursor keys) and Y/N to change settings if desired.
Press () (scroll key). As shown at right, the “Multi Cal.” index will
appear in the top line of the display, followed by its present setting.
If the “Muiti Cal.” index is set to “N”, the bottom line of the
display will show “CAL ch” followed by the calibration channel
selected.
* |f the selected calibration channel has not been previously
calibrated, the calibration channel will automatically be set to
ch00 when ENTER is pressed. |
Use <=/> (cursor keys) and Y/N to change the setting of the
“Multi Cal.” index if desired. Use <=/=> (cursor keys) and number
keys to set the calibration channel if necessary.
Press ( ) (scroll key). As shown at right, the “Light Source” index
will appear in the display, followed by its present setting.
Use «=/=> (cursor keys) to move cursor under the desired
illuminant conditions (under “C” for Standard llluminant C
conditions, under “D” for Standard llluminant Des conditions).
* The setting of the “Light Source” index cannot be changed if
calibration has already been performed. If it is desired to change
this setting after calibration has been performed, perform
system reset (see p. 23), then change the setting of the “Light
Source” index and calibrate the Chroma Meter again.
Press ENTER to store changes in memory and finish changing
index settings. The display shown at right will appear for a few
seconds before changing to the measurement-mode display.
Changing indexes is now complete.
* If it is decided not tó change indexes in the middle of the above
procedure, press BREAK before step 10 or instead of ENTER in
step 10. Display will immediately return to measurement-mode
display and any changes in the index settings will not be stored.
26
seu e
FEIT т
Solo Space
{i tar, eb om, + gare prete reper uses e = ki
„ОДО. OF OL О a OIT
Mai Peas aia
rnd A Si
LEE TE
Lisht Saura N
a" PE Wf a a | =
EE
_—_,
ire set E
RETA
CALIBRATION
The Chroma Meter has 20 different calibration channels numbered from 00 to 19. Channel
00 must be calibrated to the included white calibration plate (Calibration Plate CR-A43 for the CR-
300, Calibration Plate CR-A44 for the CR-310, Calibration Plate CR-A45 for the CR-321 or
Calibration Plate CR-A46 for the CR-331 or the CR-331C); channels 01 through 19 may be
calibrated to any user-selected surface.
e When using several units of the same model, the spectral response of the meters can be
standardized by using the calibration channels for user-selected surfaces and calibrating all the
meters to the same standards.
e For best results, calibration and measurements should be performed under the same conditions
(ambient temperature, etc.)
e When you use Color Calibration Plate Set to perform multi calibration on several Chroma
Meters, please use the same Calibration Plate Set for all Chroma Meters.
Selecting Calibration Surfaces
Calibration channel 00 must be calibrated to the included white calibration plate (Calibration
Plate CR-A43 for the CR-300, Calibration Plate CR-A44 for the CR-310, Calibration Plate CR-A45
for the CR-321, or Calibration Plate CR-A46 for the CR-331 or the CR-331C). The white calibration
plate used for calibration of channel 00 is used as the primary working standard for the Chroma
Meter. When any of the other calibration channels (01 through 19) are calibrated, the correction
factor for the calibration channel is calculated in relation to the calibration data in channel 00. For
this reason, calibration channel 00 must be calibrated to the white calibration plate before calibrating
any of the other calibration channels. For the same reason, recalibrating channel 00 to the white
calibration plate at the start of the measuring session is sufficient; it is not necessary to recalibrate
all calibration channels. |
Calibration channels 01 through 19 may be calibrated to any surface selected by the user.
In general, the surfaces selected for calibration should be of the same material and have the same
surface conditions (texture, gloss, etc.) as the specimens which will be measured. Also, the surfaces
selected should be reproducible and resistant to fading, and should be stored under conditions
which will minimize color changes due to fading, aging, etc.. The surfaces should be selected
to provide a wide variety of calibration points within the range of colors to be measured.
When using multi-calibration (when the “Multi Cal.” index is set to “Y”), the calibration surfaces
should be selected so that all measured values will occur within the area surrounded by the
calibration points. When measurements are to be compared, or are part of a series of measurements,
it is extremely important that the meter be calibrated to the same set of calibration surfaces for all
measurements. If the calibration data in one or more channels is changed or deleted, subsequent
measured values will be different.
When manually selecting the calibration channel (when the “Multi Cal.” index is set to “N”), best
results will be obtained by using a calibration surface which is very close to the specimens to be
measured. When measurements are to be compared or are part of a series of measurements, the
same calibration channel and calibration data should be used for all measurements.
e The optional Color Calibration Plate Set CR-A47 consists of nine color plates (red, orange, yellow,
yellow-green, green, cyan, purple, deep pink, and brown) which can be used as calibration surfaces
if desired. Calibration values are printed inside the cover of each plate.
Calibration to White Calibration Plate
1. Slide POWER switch to ON. EEE
POWER
ох Ще
«ити
27
. Press CALIBRATE. The upper display shown at right will appear
for about five seconds, and then change to the lower display,
showing previously set calibration values. If no calibration values
have been previously set, no values will appear.
* Pressing +/=, Y/N, SPACE, <=/=> (cursor keys), € ) (scroll key),
or any of the number keys will cause the display to immediately
change from the upper display to the lower one.
. If the displayed color space is not Yxy, press COLOR SPACE
SELECT repeatedly to change to Yxy color space.
. Use <=/> (cursor keys) and number keys to set calibration
channel (“ch”) to 00.
. Set the calibration data listed inside the cover of the white
calibration plate by using the number keys. The cursor will
automatically move to the next position after a number key is
pressed. Use <=/=> (cursor keys) to move back to a previously
set position if corrections are required.
e Calibration values for both CIE Standard Illuminant C and CIE
Standard llluminant Des conditions are listed inside the cover of
the white calibration plate. Be sure to input the calibration data
for the illuminant conditions being used (for the selected setting
of the “Light Source” index).
* Be sure to use the correct calibration plate for the meter being
used (Calibration Plate CR-A43 for the CR-300, Calibration Plate
CR-A44 for the CR-310, Calibration Plate CR-A45 for the CR-
321, or Calibration Plate CR-A46 for the CR-331 or the CR-331C).
. Place tip of measuring head flat against the surface of the white
calibration plate.
e Since the calibration data was originally measured at the center
of the white calibration plate, the center of the white calibration
plate should be measured when performing calibration.
If using CR-321, position target area of baseplate over the center
of the white calibration plate and tilt the body of the measuring
head toward the baseplate so that the tip of the light-projection
tube is against the surface of the white calibration plate.
. Press MEASURE or measuring heads measuring button after
ready lamp on measuring head lights. Display at right will appear
and three measurements will automatically be taken for better
accuracy. Do not move the measuring head until all three
measurements have been completed.
. After about five seconds, “CAL” in the display will be replaced by
“End” as shown at right. Calibration of channel 00 is now complete.
28
fs
Ti
E
„=
EL
LS L Et
sp
fo |
Cod Ll
==
ЧИ А
Е!
Г.
Recalibration
For greater accuracy, the Chroma Meter should be recalibrated to the white calibration plate
at the start of each measuring session. Once calibration data has been stored in memory, recalibration
can be performed by following the steps below.
* For best results, recalibration and measurements should be performed under the same conditions
(ambient temperature, etc.).
1. Slide POWER switch to ON. = E
POWER
on Joss
fm
2. Press CALIBRATE. The upper display shown at right will appear
for about five seconds, and then change to the lower display,
showing previously set calibration values.
* Pressing +/-, Y/N, SPACE, <=/=> (cursor keys), C ) (scroll key), Y
or any of the number keys will cause the display to immediately CAL свай 4 SE,
change from the upper display to the lower one. Ea lis 7 223170
:
i
=
ii
: 4
—
a ge
ВН
че
2
3. If the displayed color space is not Yxy, press COLOR SPACE
SELECT repeatedly to change to Yxy color space.
4. Use +/=# (cursor keys) and number keys to set calibration channel
ch”) to 00.
* Check that the calibration data shown in the display is correct.
5. Place tip of measuring head flat against the surface of the white
calibration plate.
e Since the calibration data was originally measured at the center
of the white calibration plate, the center of the white calibration
plate should be measured when performing recalibration.
If using CR-321, position target area of baseplate over the center
of the white calibration plate and tilt the body of the measuring
head toward the baseplate so that the tip of the light-projection
tube is against the surface of the white calibration plate.
( =
a
6. Press MEASURE or measuring head's measuring button after Hou Measur ina
ready lamp on measuring head lights. Display at right will appear
and three measurements will automatically be taken for better
accuracy. Do not move the measuring head until all three measure-
ments have been completed.
29
7. After a few seconds, “CAL’ in the display will be replaced by Eric Nal, 56
“End” as shown at right. Recalibration of channel 00 is now x ,31iid vu .Zica
complete.
If any of the other calibration channels were previously calibrated, recalibrating channel 00 to the
white calibration plate automatically adjusts their calibration as necessary.
Calibration to User-Selected Surfaces
The Chroma Meter may be calibrated to as many as 19 different surfaces selected by the
user.
To calibrate to a user-selected surface, follow the steps below.
* For best results, calibration and measurements should be performed under the same conditions
(ambient temperature, etc.)
1. Slide POWER switch to ON. | еее]
TIMER AU
E
POWER
on or
«рии
2. For greater accuracy, recalibrate the Chroma Meter to the white cet COL Of
calibration plate (see p. 29) immediately before calibrating to a + Fessur
user-selected surface.
3. Press CALIBRATE. The upper display shown at right will appear for
about five seconds, and then change to the lower display, showing
previously set calibration values.
* Pressing +/-, Y/N, SPACE, <=/=> (cursor keys), C) (scroll key),
or any of the number keys will cause the display to immediately
change from the upper display to the lower one. |
4. Press COLOR SPACE SELECT to set the desired color space (Yxy
or L‘a*b*).
e If calibration is performed using L*a*b* color space, the values
input in step 6 may differ somewhat from the final calibration
values due to internal conversion calculations during calibration.
5. Use <=/=> (cursor keys) and number keys to set desired calibration
channel (01 through 19).
6. Set the calibration data for the selected surface by using the
number keys. The cursor will automatically move to the next position
after a number key is pressed. Use <=/=> (cursor keys) to move
back to a previously set position if corrections are required.
* When inputting data in L‘a*b* color space, position cursor under
any digit of the a* or b* value and press +/- to change between
positive and negative values.
30
7. Place tip of measuring head flat against the selected surface.
If using CR-321, position target area of baseplate over the desired
area of the calibration surface and tilt the body of the measuring
head toward the baseplate so that the tip of the light-projection
tube is against the calibration surface.
or
8. Press MEASURE or measuring head's measuring button after Non Measur ina
ready lamp on measuring head lights. Display at right will appear
and three measurements will automatically be taken for better
accuracy. Do not move the measuring head until all three
measurements have been completed.
9. After a few seconds, “CAL” in the display will be replaced by “End” Ена y 93.56
as shown at right. Calibration of the selected channel is now x 3114 y 219€
complete. Repeat steps 3 through 8 as required to set other
calibration channels.
* |f the surface conditions of the specimens to be measured are
greatly different from those of the calibration surface, some
measurement error may occur.
|
31
Deleting Calibration Data
To delete the data stored in a calibration channel, follow the steps below.
1. Slide POWER switch to ON. —_— |
Е
POWER
(Jl Bor
«Mi
2. Press CALIBRATE. The upper display shown at right will appear Set CEL [gts
for about five seconds, and then change to the lower display, + Mescuro
showing previously set calibration values.
* Pressing +/-, Y/N, SPACE, <=/> (cursor keys), C) (scroll key), Y
or any of the number keys will cause the display to immediately LHL ché Y 75. SE
change from the upper display to the lower one. x 3115 3 2316
3. Use <=/> (cursor keys) and number keys to set desired calibration
channel.
4. Use <=/> (cursor keys) and SPACE repeatediy to set all calibration CAL ches Yo.
values for the selected channel to blanks. хо C4,
>. Press ENTER. The display at right will appear for a few seconds, COL Es
then change to the measurement-mode display. Mata Deleted
* When using multi-calibration (when the “Multi Cal.” index is set
to “Y”), changing or deleting the calibration data in one or more Y
calibration channels will cause subsequent measured values to BEN Y 56.54
vary from previously measured values, even if the same subject x asi 4 A100
is measured.
e Calibration data in calibration channel ch00 cannot deleted.
32
Manual Calibration-Channel Selection
The calibration channel may be selected manually by following the steps below.
1. Check that POWER switch is at ON.
en
TiVER ALL
СЕОСК CLE
POWER
on [il ее
«финан
2. Press INDEX SET. Indexes will appear in the display, followed by
their present settings.
3. Press () (scroll key) repeatedly until the “Multi Cal.” index appears Multi Cal. Im
in the top line of the display as shown at right. Indexes will change CAL chas
in the following order:
Frinti" >» “ata Protect: HH
Color SescaiH Multi Measureip
A
Y
Lisht Sources. po Multi Ca x
CEDE a CAL ch
4. If the “Multi Cal.” index is not set to “N”, use <=/=> (cursor keys)
and Y/N to change setting to “N”.
5. Use <=/> (cursor keys) and number keys to select the desired
calibration channel.
* If the selected calibration channel has not been previously
calibrated, the calibration channel will automatically be set to
ch00 when ENTER is pressed.
6. Press ENTER. The display shown at right will appear for a few Index Set ME,
seconds before changing to the measurement-mode display.
Y
ER] y SE, 2
5126 7 ES
33
Multi-Calibration
CR-300 series Chroma Meters are equipped with a multi-calibration function. When multi-
calibration is used, measurement calculations are based on all calibration data stored in memory,
rather than on the calibration data stored in a single calibration channel. This results in extremely high
accuracy and repeatability.
To use the multi-calibration function to the greatest possible advantage, a wide variety of reference
colors surrounding the range of specimen colors to be measured should be used for calibration.
To use the multi-calibration function, set the “Multi Cal.” index to “Y” according to the steps below.
1, Check that POWER switch is at ON.
2. Press INDEX SET. Indexes will appear in the display, followed by
their present settings.
3. Press () (scroll key) repeatedly until the “Multi Cal” index appears
in the top line of the display as shown at right. Indexes will change
in the following order:
Las
En E
| ALL
CLE
POWER
END
«финна
Ti
a 1
Tour E
Pies
Lata Frotect:h
Com loge E aa ВЫ Malti Measure 2
|
Y
Light Sources C Multi Cal. iH
IDAS CAL ch
4. If the “Multi Cal.” index is not set to “Y”, use <€=/ (cursor keys)
and Y/N to change setting to “Y”. When the “Multi Cal” index is
set to “Y”, no calibration channel will be shown.
5. Press ENTER. The display shown at right will appear for a few
seconds before changing to the measurement-mode display.
34
Multi Cal, 1%
ABSOLUTE MEASUREMENTS
The Chroma Meter can be used to take measurements of chromaticity in Yxy, La*b* L*C*He°, XYZ,
or Hunter Lab color space.
1. Check that POWER switch is at ON.
2. For better accuracy, recalibrate Chroma Meter (see p. 29) at the
start of each measuring session.
3. Check that indexes are set as desired by pressing INDEX SET and
using () (scroll key) to advance through the indexes. Use <=/=>
(cursor keys) arid Y/N to change settings if necessary. (See p. 25
for a complete description of indexes.) If multi-calibration is desired,
set the “Multi Cal” index to “Y”; if manual calibration-channel
selection is desired, set the “Multi Cal.” index to “N” and use «=/=>
(cursor keys) and number keys to set desired calibration channel.
* If the “Multi Cal.” index is set to “N” and the selected calibration
channel has not been previously calibrated, the calibration
channel will automatically be set to ch00 when ENTER is pressed.
4. After all index settings are correct, press ENTER.
5. Press COLOR SPACE SELECT to set desired color space. Each
time COLOR SPACE SELECT is pressed, the selected color space
will change in the following order:
Yxy L*a*b*
HIT ‘ОЗ | EEE БОРА. РБ
4241 ow 3006| |а+28, 95 +16, 36
A xa o sp | 3:
Hunter Lab L*C*H ÿ ("Light Source:C” only)
SHES HL EZ. E AZ EYES OL F2, 76
aro, Ei EZ, 18 C 39,71 HT 51.1
Ï
4
Ei
3
1
=
a
* If target-color number (“T” followed by a two-digit number) appears
in the upper line of the display, Chroma Meter is in color-difference
measuring mode. Press ABS./DIFF. to change to absolute measuring
mode. -
35
POWER
ont ох
On
6. Place tip of measuring head flat against the specimen surface.
If using CR-321, position target area of baseplate over the desired
subject area and tilt the body of the measuring head toward the
baseplate so that the tip of the light-projection tube is against the
subjet to be measured.
7. Press MEASURE or measuring head's measuring button after the
ready lamp on the measuring head lights. Display will show color
space in use for a few seconds and then measured data will be
displayed. Data will be automatically stored in memory.
e if data storage is not required, press DISPLAYED DATA DELETE/
RECOVER; the latest measurement made will be deleted and the
display shown at right will appear.
e If data is deleted by mistake, it can be recovered by pressing
DISPLAYED DATA DELE TE/RECOVER again. However, if another
measurement is taken before DISPLAYED DATA DELETE/
RECOVER is pressed again, the deleted data cannot be recovered.
* After a measurement has been taken, it can be converted to an
equivalent reading in another color space by pressing COLOR
SPACE SELECT.
* After a measurement has been taken, it can be converted to a color-
difference reading (provided target-color data has been previously
stored in memory) by pressing ABS./DIFF.
36
Measurement number
DIFFERENCE MEASUREMENTS
The Chroma Meter can be used to determine the difference between a specimen color and a
target color as differences of chromaticity coordinates. In order to measure these differences, target
colors must first be stored in memory.
* Color difference cannot be measured in XYZ tristimulus values.
* For best results, input of target colors should be performed under the same conditions (ambient
temperature, etc.) as calibration and measurements.
e Target specimens should be stored under conditions which will minimized color changes due
to fading, aging, etc.
Input of Target Colors
Target colors may be input by measuring a target surface or by using the keyboard to set Yxy,
L*a*b”, or Hunter Lab color coordinates.
BY MEASUREMENT
* When inputting target colors by measurement, the original measured target-color data is stored in
memory, without being adjusted according to the calibration data in memory or the setting of the
“Multi Cal.” index (or the calibration channel selected if the “Multi Cal.” index is set to “N”). After the
target-color data has been stored in memory, it will be adjusted each time a color-difference
measurement is taken or the target-color data is displayed, according to the calibration data in
memory and the setting of the “Multi Cal.” index (and the calibration channel selected if the “Multi
Cal.” index is set to “N”) at the time of the color-difference measurement or target-color data display.
1. Check that POWER switch is at ON. | er
E
CLOCK CLE
POWER
os] Jo
fpr
2. For better accuracy, recalibrate Chroma Meter (see p. 29) at the
start of each measuring session.
3. Check that indexes are set as desired by pressing INDEX SET
and using () (scroll key) to advance through the indexes. Use <=
/=¥ (cursor keys) and Y/N to change settings if necessary. (See
p. 25 for a complete description of indexes.) If muilti-calibration is
desired, set the “Multi Cal.” index to “Y”; if manual selection is
desired, set the “Multi Cal.” index to “N”.
4. After all index settings are correct, press ENTER.
5. Press TARGET COLOR SET. The upper display at right will appear
for about five seconds, and then change to the lower display.
o Pressing +/-, Y/N, SPACE, <=/> (cursor keys), () (scroll key), |
or any of the number keys will cause the display to immediately
change from the upper display to the lower one.
Era
E: fi
"a Ё
pa number
sie TE i PC
p= * FU Ba JT LM. DT ELE
I Tae” Tae me. бы” Тень
=
“Multi Cal.:N”
pa a Sahne
e APT 3
“Multi Cal.:Y”
6. Press COLOR SPACE SELECT to set desired color space. Each
time COLOR SPACE SELECT is pressed, the selected color space
will change in the following order:
Yxy L*a*b*
THE chin y ; TEE CREE E
os a+ ‚о [2+
A * 7 *
Hunter Lab L*C*He Ÿ
TEE CREER ; | Tae cha -
pa H E * В я H
7. Use *=/=» (cursor keys) and number keys to set the desired target-
color number. Previously set target-color data (if any) will appear.
* If the “Multi Cal.” index is set to “N”, use <=/=» (cursor keys) and
number keys to set the desired calibration channel.
If the selected calibration channel has not been previously
calibrated, the calibration channel will automatically be set to ch00
when measurement is performed.
* If the “Multi Cal.” index is set to “Y”, “Multi” will be shown in the
display instead of the calibration channel.
e The setting of the “Multi Cal.” index and/or the calibration
channel apply only to the display of the target-color data at the
end of this procedure. They do not apply to the storage of the
target-color data in memory.
8. Place tip of measuring head flat against the target surface.
If using CR-321, position target area of baseplate over the desired
area of the target surface and tilt the body of the measuring head
toward the baseplate so that the tip of the light-projection tube
is against the target surface.
or
9. Press MEASURE or measuring head's measuring button after the Mend Measurina
ready lamp on the measuring head lights. Upper display at right
will appear for a few seconds and then “End” will be displayed.
ABS. mode vw
End Y EF. 1
xa SIA Y 26675
or
Diff. mode
Target-color data has been set for the selected target-color number. Гена Tal 4 pag
Repeat from step 5 to set data for other target-color numbers. x 5068 + 6600
38
USING KEYBOARD
* When inputting the target-color data using the keyboard, it is recommended that the input data
be measured with the same model of CR-300 series Chroma Meter. The DP-301 will recalculate
the original measured data utilizing the calibration data in memory according to the setting of
the "Multi Cal.” index (and the calibration channel selected if the “Multi Cal.” index is set to “N”).
For this reason, it is very important to write down target-color data, calibration data (for all
calibration channels if the “Multi Cal.” index is set to “Y”, for the selected calibration channel
if the “Multi Cal.” index is set to “N”), and the setting of the “Multi Cal.” index when a target
color is first measured. When the “Multi Cal.” index is set to “Y”, be sure all calibration data
are the same as when the target was first measured; when the “Multi Cal” index is set to “N”,
be sure the calibration data in the selected calibration channel are the same as when the target
Was first measured.
If the target color was not measured with a CR-300 series Chroma Meter, input the calibration data
which was used when the target-color data was first measured into one of the calibration channels
and select that calibration channel (with the “Multi Cal.” index set to “N”) when inputting the
target-color data using the keyboard.
1. Check that POWER switch is at ON.
I
BE S
GLOCK CLE
POWER
LB OFF
2. Press TARGET COLOR SET. The upper display at right will appear Sat Data + Enter
for about five seconds and then change to the lower display. or Measure
* Pressing +/-, Y/N, SPACE, <=/=> (cursor keys), €) (scroll key),
or any of the number keys will cause the display to immediately |
change from the upper display to the lower one.
Target-color number
TRE chi y
х я,
“Multi Cal.:N”
. Press COLOR SPACE SELECT to set desired color space (Yxy, tie bo
Lab”, or Hunter Lab). Each time COLOR SPACE SELECT is MU E у” —
pressed, the selected color space will change in the following order: E
Yxy L*a*b*
TES CBE y 8 TEA Cha |
хо =, a+ ‚ E+
Hunter Lab | L*C*H9
TEE ChAHL . x TEE chai |
3 = © E в С я Не
* Target color cannot be set using the keyboard in L*'C*H? color space.
. Use </> (cursor keys) and number keys to set the desired target-
color number. Previously set target-color data (if any) will appear.
* |f the “Multi Cal.” index is set to “N”, use <=/=> (cursor key) and
number keys to set the desired calibration channel.
* |f the “Multi Cal.” index is set to “Y”, “Multi” will be shown in
the display.
39
5. Use #=/=» (cursor keys) and number keys to input the target-color
data.
* When inputting data in L*a*b* or Hunter Lab color space, position
cursor under any digit of the a”, b”, a, or b value and press +/- to
change between positive and negative values.
* When data is input in a color space other than Yxy, the values
input using the keyboard may differ slightly from the final target-
color data stored in memory due to internal conversion calculations.
6. Press ENTER. One of the two displays at right will appear, depending ABS. mode
on whether Chroma Meter is in ABS. or Diff. measuring mode. En Y de, id
xa FE e
or
Diff. mode
End Ta Y 8,808
wo SALTO 10, HSA
e are’
Target-color data has been set for the selected target-color number. Repeat from step 2 to set data
for other target-color numbers as desired.
Taking Measurements
* For best results, measurements should be performed under the same conditions (ambient
temperature, etc.) as calibration and input of target colors.
1. Check that POWER switch is at ON. | ——
POWER
ох or
No
2. For better accuracy, recalibrate Chroma Meter (see p. 29) at the
start of each measuring session.
3. Check that indexes are set as desired by pressing INDEX SET
and using () (scroll key) to advance through the indexes. Use <=
/= (cursor keys) and Y/N to change settings if necessary. (See
р. 25 for a complete description of indexes.)
4. After all index settings are correct, press ENTER.
40
5. Press COLOR SPACE SELECT to set desired color space. Each
time COLOR SPACE SELECT is pressed, the selected color space
Will change in the following order:
A(Yxy) Alla”)
не i Tes Y , Е В L
= а E
A
Hunter A(Lab) A(UC*H*) y
Е. НО. | Е L
a : р C H
Display will show the measurement number, color space, target-color
number, and calibration channel for a few seconds before changing
to the above measurement-mode displays.
e |f target-color number (“T” followed by a two-digit number) or
“E” does not appear in the upper line of the measurement-mode
display, Chroma Meter is in absolute measuring mode. Press
ABS./DIFF. to change to color-difference measuring mode.
. Press TARGET COLOR SELECT.
. Use +-/=# (cursor keys) and number keys to select the desired
target-color number.
. Place tip of measuring head flat against the specimen surface.
If using CR-321, position target area of baseplate over the desired
subject area and tilt the body of the measuring head toward the
baseplate so that the tip of the light-projection tube is against the
subject to be measured.
. Press MEASURE or measuring head's measuring button after the
ready lamp on the measuring head lights. Display will show color
space in use for a few seconds and then measured data will be
displayed. Data will be automatically stored in memory.
e |f data storage is not required, press DISPLAYED DATA DELETE/
RECOVER; the latest measurement made will be deleted and the
display shown at right will appear.
* |f data is deleted by mistake, it can be recovered by pressing
DISPLAYED DATA DELETE/RECOVER again. However, if another
measurement is taken before DISPLAYED DATA DELETE/
RECOVER is pressed again, the deleted data cannot be recovered.
* After a measurement has been taken, it can be converted to an
equivalent reading in another color space by pressing COLOR
SPACE SELECT; it can be converted to an absolute reading by
pressing ABS./DIFF. 4
>
ke TES Y +A, Se
— SES e, HERA
* ОВЕН берете +
Z
L Measurement number
AE*ab ALARM
The Chroma Meter can be set to trigger an alarm when the difference between the color of the
specimen and the target color is beyond the AE*a» value set by the user. AE*a» can be set to a
different value for each target color, and the AE*ab alarm function can be used in both absolute and
color-difference measuring modes. When a color is beyond the AE*a value which was set, an audible
tone sounds for about one second and signals are sent from the AE ALARM output socket and the
RS-232C terminal. Signals will also be sent from the AE ALARM output socket and the RS-232C
terminal if a measurement error (“Illumination Error”, “Over Flow”, or “Sample Too Dark”) occurs. To
set and use the AE*ab alarm, follow the steps below. |
1. Press AE ALARM SET. The display shown at right will appear. T
Te
all
E Alarm:
2. Use €=/=> (cursor keys) and number keys to set desired target-color = get-color number
number. Cursor will automatically move right after a number key is LTE] | Hlar ERY
pressed. | Чем E £ a 3
3. Use <=/> (cursor keys) and Y/N to change the setting of “Alarm” Tai Qlarm:
to “Y”. deu E € 271
4. Use <=/> (cursor keys) and number keys to set desired “dev E” Ter Ol arm:
(AE*ab) range. Cursor will automatically move right after a number Чем Е © 8,78:
key is pressed. — 7
AE” as ange
* If no data has been stored for the selected target-color number,
no “dev E” range can be set.
* “dev E" range cannot be set in terms of the AE value in Hunter
A(Lab) color space.
5. Press ENTER. The upper display shown at right will appear for about TE
three seconds and then change to the measurement-mode display. Olarm Set CE.
Y
ав тар Y +8. 52
— BEEZ 294, 6616
Repeat from step 1 to set alarm for other target-color numbers.
To cancel AE*ab alarm, press AE ALARM SET and use ¢=/=»
(cursor keys) and Y/N to change the setting of “Alarm” to “N”.
* All alarm-mode settings (target-color number, etc.) will be canceled.
42
AE ALARM Output Socket
The AE ALARM output socket can be used for triggering external devices when using the AE*a»
alarm. When a color is beyond the specified AE*ab range from the target color (or when a
measurement error occurs), the signal from the AE ALARM output socket changes from high to low,
remains low for approximately one second, and then returns to high.
* To trigger external devices when using the AE*ab alarm, the signal from the AE ALARM output
socket can be used in conjunction with the signal frora pin 8 of the RS-232C terminal; the signal
from pin 8 of the RS-232C terminal acts as a timing signal for the signal from the AE ALARM
output socket. At the start of each measurement, the signal from pin 8 of the RS-232C terminal
changes low momentarily, and then returns to high. The signal from the AE ALARM output socket
should be checked immediately after the signal from pin 8 of the RS-232C terminal has returned
to high. If the measurement is beyond the specified AE*ab range, the signal from the AE ALARM
output socket will be low at this time (for about one second): if the measurement is within the
specified AE*ab range, the signal from the AE ALARM output socket will be high at this time.
Circuit and timing diagrams for both outputs are as follows.
CIRCUIT DIAGRAM
Vo
Center
Output ransistor © +——O Va
Outside J
AE ALARM output socket — Vo
V
O —C Vs
>
С Pa
| — Pin 8 of RS-232C terminal
Output transistor maximum ratings:
Vceo: 50V
lc: 30MA
Pc: 300MW
TIMING DIAGRAMS
Target within range:
MEASURE or measuring | Measurement and , , .
button pressed A/D conversion Calculation Display Printout
Signal from pin 8
of RS-232C Ve Tv
terminal G-- >
Signal from Va
AE ALARM G--- —Vo
output socket
Target outside of range:
MEASURE or measuring | Measurement and AE *ap alarm sounds .
button pressed A/D conversion Calculation Display and signal sent Printout
Signal an pin 8
of RS-232 Vs \
terminal es |
Signal from Va |
AE ALARM G-— Vp |
output socket - >
About 1 second
Measurement error:
MEASURE or measuring | Measurement and Error Error message displayed; AE*ab alarm
button pressed A/D conversion determined error tone sounds signal sent
Signal from pin 8
of RS-232 Vs V
terminal a+ 2 |
Signal from VA
AÉ ALARM gt Vo | Г
output socket
44
В About 1 second
Poe.
TIMER-CONTROLLED MEASUREMENTS
The Chroma Meter has a built-in timer and calendar/clock which can be used to automatically
take measurements at specific intervals. To use the timer, follow the steps below.
1. Press TIMER/CLOCK. The display shown at right will appear. +=H
EMTIE
V4
у, f 7 /
Month Day Hoûr Minute Second
IR LLB.
Interval time
>, >
ts TEE = 2
МЕР 13552725
wr” Tan
Time unit
2. Use Y/N to change setting of “t=" to “Y”. Previously set data will
appear in the display.
Interval time 7 Time unit
3. Use <=/=> (cursor keys) and number keys to set the desired
interval time between the start of each measurement Cursor will
automatically move right after a number key is pressed; use <=
(cursor key) to move left if necessary to correct mistakes. To
change time unit from “S” (seconds) to “M” (minutes) or from “M”
to “$”, use <=/=> (cursor keys) to move cursor under the present
time unit and press () (scroll key). The minimum interval time
which can be set should be determined from the chart below.
* The interval time can be set from 03 to 99 seconds or from 01 to
99 minutes. If the interval time is set to 00 (minutes or seconds)
or to 01 or 02 seconds, the interval time will automatically be set
to 03 seconds when ENTER is pressed.
mar A ;
+=} Sab: К
ЕЮ 13058: 328
Average interval time (seconds) required:
“Print ” index
Y N
N N 8-9 3-4
“Multi Measure:” “Color Space:" | Y | 13-16 | 3-4
index index N 13-14 9-10
Y Y 18-21 9-10
Time intervals shorter than the above interval times will cause
measurements to be taken consecutively as quickly as the Chroma
Meter can reset itself for the next measurement.
4. Use number keys to set the desired end time (time of last += Tex
measurement). Cursor will automatically move right after a number =
key is pressed; use *= (cursor key) to move left if necessary to
correct mistakes. Time should be set in 24-hour format (e. g., for
1:00PM, set 13:00”). If continuous measurements are desired, set
the end time to all blanks by pressing SPACE instead of number keys.
2. Use number keys to set present date and time if necessary. Cursor
will automatically move right after a number key is pressed; use <=
(cursor key) to move left if necessary to correct mistakes. Time
should be set in 24-hour format (e. g., for 1:00PM, set “13:00").
* Although the internal clock continues to run, clock display will be
halted while the date and time are being set.
45
6. Press ENTER to complete setting. After about three seconds, timer
Timer “Clock
display will change to measurement-mode display. Set Ok,
y
EN =D
X 31208 Y ‚3156
7. Place tip of measuring head flat against the specimen surface.
If using CR-321, position target area of baseplate over the desired
subject area and tilt the body of the measuring head toward the
baseplate so that the tip of the light-projection tube is against the
subject to be measured.
8. To start measurement cycle, press MEASURE.
* To start measurements at a specific time, press TIMER/CLOCK. Clock display will be shown.
When the desired start time appears in the clock display, press MEASURE to start
measurement cycle.
* |f the clock was set or the cursor moved after TIMER/CLOCK was pressed, measurement
cycle will not be started when MEASURE is pressed.
* The measurement cycle can also be started by inputting control code “M” from a separate
computer (see p. 65). However, the measurement cycle cannot be started by pressing the
measuring head’s measuring button or by using a switch connected to the remote-control socket.
* A tone will sound every second between measurements.
* When using the timer to control measurements, it is recommended that the AC adapter be used
to provide power to the Chroma Meter.
* |f the conditions for any of the following error messages occur during timer-controlled measure-
ments, the measurement cycle will stop automatically.
“Change Battery”
“Check Connector”
“Illumination Error”
“NO Store Space”
These error messagés (with the exception of “Change Battery”) will be printed out if the “Print”
index is set to “Y”.
To stop the measurement cycle, press BREAK until a tone sounds for about two seconds. Measurement
cycle will start again when MEASURE is pressed.
To cancel timer-controlled measurements, press BREAK until a tone sounds for about two seconds,
then press TIMER/CLOCK, use Y/N to change setting of “t=” to “N”, and press ENTER.
46
MEMORY
The Chroma Meter has memory space for up to 300 sets of measurement data; this memory
space can be divided into up to 20 pages (numbered 00 through 19). Data is stored automatically at
the time of measurement in the color space selected for measurement and can be read out only in
that color space. Both absolute and color-difference data are stored, regardless of which measurement
mode was selected when the measurement was taken. Data can later be recalled to the display,
printed out, used for statistical calculations, or output to a separate computer.
Pages
Data can be stored in up to 20 pages. A new page can be started when desired by following the
steps below.
1. Push PAGE. The display at right will appear, showing the present presen page Next page
page number and next page number. нрав + Poi 7
* Remaining data space will be shown only if the “Data Protect” (erdoRemainins
index is set to “Y”. If the “Data Protect” index is set to “N”,
remaining data space will not be shown.
/
Remaining data space
2. Press ENTER. The display at right will appear for a few seconds Hey Pass [217
and then change to the measurement-mode display, showing
measurement number 000 on the new page.
* [fit is decided not to change pages after performing step 1, press “ENTER” |
BREAK instead of performing step 2. After a few seconds, the on т
display will return to the measurement-mode display. x.
“BREAK”
* |t is not possible to return to a page and add data once that page ATE SE. Sd
has been closed and the next page has been started. = 51768 1 5158
* |f the “Data Protect” index is set to “Y”, page change cannot be
performed if the present page number is 19 or if the present
measurement number is 300.
e If the “Data Protect” index is set to “N”, all data previously stored
on the next page will be deleted when the page is changed. If page
change is performed when present page is 19, the new page will be
page 00.
Data Protect
The “Data Protect” index may be used to prevent data stored in memory from being replaced by
new data when memory space becomes full. |
To set the “Data Protect” index, follow the steps below.
1. Check that POWER switch is at ON. En |
POWER
od jor
«ина
2. Press INDEX SET. Indexes will appear in the display, followed by
their present settings.
47
3. Press () (scroll key) repeatedly until “Data Protect” appears in the
display, as shown at right. Indexes will change in the following order:
FrimEry
— y
bata Protect: H
Multi Mesgeure:H
Color Space:
A
Light Sourcett Mit si, IH
с С с
A
4. Use €“/=> (cursor keys) and Y/N to change “Data Protect” index to
the desired setting.
* |f more than 300 measurements have been taken or all 20 pages
of memory have been used, the “Data Protect” index cannot be
changed from “N” to “Y”.
5. Press ENTER. The display shown at right will appear for about
three seconds before changing to measurement-mode display.
Setting the “Data Protect” index to “Y” causes the following:
* if a measurement is taken (or PAGE is pressed) after 300 data
have been stored in memory, “NO Store Space” will appear in
the display. Subsequent measurements will cause a warning tone
to sound and this message to reappear. Measurement data will be
displayed after the error message, but will not be stored.
o If PAGE is pressed after the page number has reached 19,
“Page End” will appear in the display and no new pages may be
started.
Setting the “Data Protect” index to “N” in the above circumstances will
result in the following:
* if only one page has been used for all memory, each new
measurement will replace the oldest measurement stored in
memory. If more than one page is used, oldest pages will be
deleted as necessary to provide space for new measurements. In
this case, new measurements will be stored on the last page in
use unless PAGE is pressed.
* Pressing ENTER after pressing PAGE will cause the oldest page
in memory to be deleted and new data will be stored in that page.
If the page becomes full, the next page will be deleted to provide
more space.
48
Index 5
LE
te
Te
Led
HO Store =
Ра
se Er
Recalling Data
To recall measurement data stored in memory, follow the steps below.
® To print out measurement data stored in memory, see p. 59.
e To output measurement data stored in memory, see p. 69.
1. Check that POWER switch is at ON.
2. Press STORED DATA LIST. One of the three displays shown at Lis+
right will appear in the display.
List
List
3. Press () (scroll key) repeatedly to select the display shown at right. I i=s+
The displays will change in the following order:
List BES PEZ List RES FET
Prim Qu | Diss lad
|
List HES Faz
Outrut a
4. Press ABS./DIFF. to select recall of absolute or difference List
measurement data. The top center of the display shows the mode
selected (“ABS” or “Diff”).
e When data is recalled from memory in difference mode, no data Lic
ist
will be displayed if the target color number selected at the time of
measurement contained no data when the measurement was
taken.
5. Use <=/> (cursor keys) and number keys to select the page to be ne
displayed.
If all pages are to be displayed, use SPACE to set the page number mn
to all blanks.
6. .Press ENTER to start data recall.
49
Data will be recalled in the reverse order from which it was stored (data
for highest measurement number is recalled first). The display will
automatically change to data for the next lower measurement number
every 05 second.
Display will stop changing and a tone will sound when the lowest
measurement number on the selected page is displayed, and then the
display will return to the measurement-mode display.
To stop the automatic changing of the display, press () (scroll key).
After pressing () (scroll key), data for the next higher or next lower
measurement number can be selected using <=/> (cursor keys).
Pressing either <= or > (cursor key) until the tone sounds will cause
the display to start automatically changing to the next higher or next
lower measurement number every 05 seconds. To stop the automatic
changing, press () (scroll key) again. If the automatic changing is not
stopped again by pressing () (scroll key), display will automatically stop
changing and a tone will sound when the highest or lowest measurement
number on the selected page is displayed.
The tone will sound and the message at right will appear if =» (cursor
key) is pressed when the lowest measurement number on the selected
page is displayed, or if + (cursor key) is pressed when the highest
measurement number on the selected page is displayed.
To cancel data recall and return to measurement mode, press BREAK
until the tone sounds for a few seconds.
|
50
de Fass
Temporarily Deleting Data from Memory
Data can be temporarily deleted from memory to exclude these data from statistical calculations.
Data which have been temporarily deleted can be recovered to memory at a later time (see
Recovering Data on p. 53). To temporarily delete data, follow the steps below.
1. Check that POWER switch is at ON
2. Press STORED DATA LIST. One of the three displays shown at List OES PAT
right will appear in the display. Es je Out
List HED Fi
ize] aw
List AES Paz
Ltr
3. Press () (scroll key) repeatedly to select the display shown at right. Dist CES PES
The displays will change in the following order: Dice laa 7
List HBS FOZ List RES PEL
Prim Cit Digs] ag
|
List HE= FOZ)
Qutrut
4. Press ABS./DIFF. to select recall of absolute or difference List RES FES
measurement data. The top center of the display shows the mode Display |
selected (“ABS” or “Diff”).
Lizt DIT PES
Ciselas
5. Use <=/=> (cursor keys) and number keys to select the page from List OES PM
which data will be deleted. Diselas J]
Page number
If the page number is not known, or if all pages contain data which List pes E
are to be deleted, use SPACE to set the page number to all Bisrlas >
blanks.
6. Press ENTER to start data recall.
Data will be recalled in the reverse order from which it was stored
(data for* the highest measurement number is recalled first). The
display will automatically change to the data for the next lower
measurement number every 05 second.
51
7. When the data to be deleted appears in the display, press ()
(scroll key) to stop the automatic changing of the display.
If the data to be deleted has already been passed or has not yet
been reached when () (scroll key) is pressed, use either <= or =>
(cursor key) to select the data for the measurement number one
higher or one lower than the presently displayed measurement
number. Pressing either <= or =» (cursor key) until the tone sounds
will cause the display to start automatically changing to the next
higher or next lower measurement number every 05 seconds. To
stop the automatic changing, press () (scroll key) again.
8. Press DISPLAYED DATA DELETE/RECOVER to delete the data
shown in the display. The display at right will appear.
9. Use <=/=> (cursor keys) to select the next data to be deleted.
10. Repeat steps 7 to 9 as needed until all desired data have been
deleted.
11. Press BREAK until the tone sounds for a few seconds to return
to measurement mode.
ie
52
Recovering Data
Data which was temporarily deleted from memory can be recovered at a later time by following
the steps below.
e Data which has been permanently deleted cannot be recovered.
1. Check that POWER switch is at ON.
2. Press STORED DATA LIST. One of the three displays shown at List FARES Paz
right will appear in the display. Print Out
List НЕ® Fad
lisrlay
3. Press () (scroll key) repeatedly to select the display shown at right. Liszt ES FE
The displays will change in the following order: Diselas >
Li=t BES PEZ | List RES Paz
Frint Chat oo Disrlaz
List RES FOZ |
СЫР; 3
4. Press ABS./DIFF. to select recall of absolute or difference List DES PE
measurement data. The top center of the display shows the mode Disrlas
selected (“ABS” or “Diff”). |
5. Use <=/=>> (cursor keys) and number keys to select the page to Pim си al
which data will be recovered. CISPÍias
Page number
If the page number is not known, or if all pages contain data which pic | nn E
are to be recovered, use SPACE to set the page number to all Disriam >
blanks.
6. Press ENTER to start data recall.
Data will be recalled in the reverse order from which it was stored
(data for the highest measurement number is recalled first). The
display will automatically change to the data for the next lower
measurement number every 05 second.
53
7. When the measurement number for which data is to be recovered + GB& Deleted +
appears in the display, press () (scroll key) to stop the automatic
changing of the display.
f the measurement number for which data is to be recovered has
already been passed or has not yet been reached when () (scroll
key) is pressed, use <=/=> (cursor keys) to select the measurement
number one higher or one lower than the presently displayed
measurement number. Pressing <= or > (cursor key) until the tone
sounds will cause the display to start automatically changing to the
next higher or next lower measurement number every 05 seconds.
To stop the automatic changing, press € ) (scroll key) again.
8. Press DISPLAYED DATA DELE TE/RECOVER to recover the data к GGÉ Fecover ade
for the measurement number shown in the display. The upper
display at right will appear for a few seconds, then change to the ]
lower display.
9. Use +=/= (cursor keys) to select the next measurement number for
which data will be recovered.
10. Repeat steps 7 to 9 as needed until all desired data have been
recovered.
11.Press BREAK until the tone sounds for a few seconds to return
to measurement mode.
Permanently Deleting Data from Memory
All measurement data can be permanently deleted from memory by following the steps below.
* It is not possible to permanently delete selected data sets.
* Data which has been permanently deleted cannot be recovered.
1. Press ALL DATA CLEAR. The display at right will appear. Stared Data
* If it is decided to not delete data, press BREAK to return to Delete Uk 7
TT
bd
ный
measurement mode.
2. Press ENTER. The display at right will appear for a few seconds, All Stored Dats
and then return to the measurement-mode display. Daleted
Ÿ
( HEE Y .
я = =
54
PRINTING DATA
The Data Processor uses a 24-character thermal-dot printer for printing data. Data can be printed
automatically at the time of measurement, at any time while it is displayed, or from memory at a later
time. In addition, data can be printed out at the time of measurement in all color spaces if desired,
and the results of statistical calculations performed on data in memory can also be printed out.
At Time of Measurement
Data is printed automatically at the time of measurement if system reset has been performed and
the “Print” index has not been changed afterward. If the “Print” index has been changed and
automatic printing is desired, follow the steps below.
1. Check that POWER switch is at ON.
2. Press INDEX SET. Indexes will appear in the display, followed by
their present settings.
3. Press () (scroll key) repeatedly until the “Print” index appears in
the display, as shown at right. Indexes will change in the following
order:
mor TER Multi Kal, op
; CHL chin
ОН: СНЕ
A
4. Use <«/=> (cursor keys) and Y/N to change the “Print” index to “Y”
Pressing Y/N again will change index back to “N”
5. Press ENTER. The display shown at right will appear for about
three seconds before changing to measurement-mode display.
55
BE
TIMER
CLOCK
POWER
ох Це?
fr
Prime
= me,
Li п
Samer
Data will be printed out according to the current color space and measurement mode in use.
Examples are shown below.
ABSOLUTE MEASUREMENT MODE DIFFERENCE MEASUREMENT MODE
Yxy A (Yxy)
dus 813 TEO
Y 99,75 x .3107 y ‚3161 Y 44,75 x+.6161 y-.0639
L'a*b" A (L*a*b*)
A(L*C*H*)
BI TEA
0,06 H®338.6 L +1,58
Hunter A(Lab)
5 hunter | B23 TEL Hunter E 8,04
3.13 a +9,81 b+16,41 L 6.81 3 -8,04 6 -8.0:
56
In All Color Spaces
If desired, data can be automatically printed in all color spaces. By following the steps below, data
will be printed at the time of measurement in Yxy, L‘a*b*, L"C*H° , XYZ, and Hunter Lab for absolute
measurements or in A(Yxy), A(L‘a*b*), A(L*C*H*), and Hunter A(Lab) for difference measurements.
1. Check that POWER switch is at ON. | me ———
2. Press INDEX SET. Indexes will appear in the display, followed by
their present settings.
3. Press () (scroll key) repeatedly until the display shown at right
Frimtd
LE
appears. Indexes will change in the following order: Color ÉÚrace!h
FrimEtIN Lata Protect:
Color Sraceif Puits Megsuresn
4
Y
Light Sourasiil Plt Lal, E
SEDES CAL ches
4. If necessary, use <“/> (cursor keys) and Y/N to change the “Print” Perro;
and “Color Space” indexes to “Y” Talar Écacet"
5. Press ENTER. The display shown at right will appear for about Tadex Set Nk,
three seconds before changing to measurement-mode display.
Each time a measurement is taken, data will be printed in all color
spaces as shown below.
* Data is stored only in the color space selected for display.
ABSOLUTE MEASUREMENT MODE DIFFERENCE MEASUREMENT MODE
HES с Sid TE
ÿ 71,098 x ‚3055 4 ‚3786 To Eu E, HAN +, ARO
L 23,55 а $5.82 ATT. YA Lo 6,56 3 2.78 D -8,4%
L 53.585 5 4,35 HT 65,4 L -É.36 C -1,95 H +2,30
AE El Y 21,54 2 12,04 HURATEF
Hunter | 6.564 a -Z.52 Do 1.67
L 6.0 & +7,26 b+10, 27 RES FE BE 5,55<——AE’œ
ИИА ИИ
Hunter AE
57
Displayed Data
Data shown in the display can be printed at any time by pressing DISPLAY PRINT. When this key
Is pressed, data is printed out exactly as it is displayed, regardless of the setting of “Print” index.
Printing examples are shown below.
ABSOLUTE MEASUREMENT MODE
Yxy
Hil i sa Ta
X 5161 3 ‚3161
PSSS
L'a*b°
L*C*H*
XYZ
DIFFERENCE MEASUREMENT MODE
A(Yxy)
A(L*a*b*)
E 7.64 L +1,88
3 +7.49 b +4,75
EZ L +1. 57
—-
1
H +1,35
Hunter A(Lab)
58
Data in Memory
Data stored in one page or on all pages of memory can be printed out if desired. Data is printed
in the reverse order from which it was stored (latest data is printed first). To print data stored in
memory, follow the steps below.
1. Check that POWER switch is at ON
EAE À
TIMER ALL
CLOCK CLE
POWER
on |! [ое
«нии
2. Press STORED DATA LIST. One of the three displays shown at List OES PET
right will appear in the display. Frint Out
List ABS PEZ
Ciselas
List DES PAT
=
hate
3. Press () (scroll key) repeatedly to select the display shown at right. List Ces Par
The displays will change in the following order: | Frint Out
List RES Fes List RES PE
Print Out | Cisclas
à
List ABS PBZ
НР о
4. Press ABS./DIFF. to select printing of absolute or difference ie OES Par
measurement data. The top center of the display shows the mode Erist Cut
selected (“ABS” or “Diff”).
e When data is printed from memory in color-difference mode, no Diet iTF Pas
data will be printed if the target color number selected at the O Deeded Our
time of measurement contained no data when the measurement
was taken.
5. Use <=/=» (cursor keys) and number keys to select the page to be re pos Did
printed. Print Out
$e
It all pages are to be printed, use SPACE to set the page number
to all blanks.
59
Page number
List НЕЕ ОР
Primt Chat
6. Press ENTER to start printing.
* During printing, the measurement number for which data are
being printed out will be shown in the display.
To stop printing before printout is complete, press BREAK until the
tone sounds for about one second.
All data stored in the pages selected are printed out, even if stored using different color spaces.
Printing examples are shown below.
ABSOLUTE MEASUREMENT MODE
pos number
Ha - As a ar „= „= ГД
— | 1 mi r id He |
CME Да бо
iii |! Tip 5 5 wee
ma го
ZE SN:
L$ РТО Др? i = CT "7 7A A я
fü “E li i LL a TE
4 J
des Ce
i == NT {= y РЕН TT x
Co Lo 5d HE EAS, H
ral.
ET a 1 mL nn a
L 37.33 2 ~4,88 b -5.89
га ба
НН
1} rE 13e a TET
1 Lu Li EE £ Lois 7 3 0 à
rir E; mw
E HUN DS?
= TE - - To ! = To
i a E Ad dy am
rara ВЯ Фо ЗЕ р Som TTR
mia SNIF he dy
Rad mer RE
mi dit bw
0 11 t
Es mi PE
=u dE - + 71 тоя т то ‚“ A
L TR = To; Ti Reis, 4.5
aie
wid
Ld “тоя a E = 7 2 I
7 ir. i Дл _ le. sd
Far т, = +
Gas CYR)
r Що OO AT TT tm a
| De Put La a i Er,
Te
МН
и ор ол Е LÈT £7
L DR, TL = ig, 45 ARE:
raed
Fie j
it mis SD = => TEAS
} Lite imo Shu - SE
DIFFERENCE MEASUREMENT MODE
Date and time of first measurement on page *
Date and time of last measurement on page
wl
Ch
Cl
er POE
|
L
тб
wt En |
fou
+
Bn se] EE m]
ue
[5]
us CT OT
|
|
F3
=
+
"a
—
LE
Fm Y
a
Ta
fete
1 Fa EF
КР
at
yr
a
a {77 €
wt ob Le
Fu . wi
GEV ee] EE ee] ABN ood lef md RIP
a
Fed =
„Ве сено
"ges
Lind
E
“т
ted
као"
NA Pe a] Bet AN
Кн"
Tb Fl geen |
с
EFE a
sf
ca
>
mas am IE
E,
ae
E pet PP Cod Par OT 1
meo
og"
tope
bas!
yr
ni
oJ.
fa es ll
vee
To
ct Le
.
|
ET
Er Ce
oo
+ а
ná ua
= 1 I <
= оо ово
cd +=
ve 11:37
Le I =- =- 1
1: Е
РРР
Hindi SA 1
EM
ze id
"me = - E ab
nr! +
i an "a
* Pte TO
+ Pa
= +1,1H
= E = =
KA a
nL,
FL A
riven
5
Fu
|
A
= ТЕ
Hunter
s-i8,ré
E EE 1
СНЕ, ВН
| À |
+. =
=f =f)
Do Tdi
Do Ide
FH Sidi
Er, dd
+. EAT
E 76. 91
b+24,18
E 4,65
H +2,2r
E 5,39
oo +3,25
Do ÉSA
ОЕ]
|
| Ts
„Га.
J
wf. matic fo a
= нее обо =) EA
+
QUE of EM PD LA EA
Fed A п ег CM
LEE A ET FT aL
Le
+, 8173
"If “Data Protect” index is set to “N” and more than 300 measurements have been taken, date and
time of first measurement will not be printed out.
(
-
60
Statistical Calculations
The Data Processor can perform statistical calculations using data stored in memory and
determine the maximum, minimum, mean, and standard deviation of a series of measurements. Data
on one page of memory or all data in memory may be used for calculations. The Data Processor will
automatically select the data which was stored in the selected color space from among all data on
the selected page or on all pages and use only the selected data for calculations.
To perform statistical calculations, follow the steps below.
1. Check that POWER switch is at ON. —
POWER
ont Ц ее:
«ини
2. Press STATISTIC. The display shown at right will appear. Lab NES PA]
E ВЮ
3. Use <=/> (cursor keys) and number keys to select the page which ah sec REE
contains the data to be used for calculations. скит Sd -
Page number
If all pages contain data to be used for calculations, use SPACE to |b ESO PO
set the page number to all blanks. Cp IT
4. Press COLOR SPACE SELECT to choose the color space of the
data to be used for calculations. Color space will change as follows:
ABSOLUTE MEASUREMENT MODE
Уху L'a*b*
MA НЕЙ РЕН | Lab ges Рав
= 11 oo = Ca
Hunter Lab + L*C*He° |
Hab HENO FEE TSI HES Fag
Lie Et CE poy Es
a
XYZ |
hes Ld 2 Ei E = Е В В
Ch= 8
q
DIFFERENCE MEASUREMENT MODE
Yxy L*a*b”
Y des FÜR | Lab ВОО Рава
pa TE о шо пыл 7
DxDyDz L'C*H° , .
— — e Only data which was stored in
Denz its HES a E N HE Fa the selected color space will be
- к A / used for calculations.
61
5. Press ABS./DIFF. to select calculations using absolute or difference
measurement data. The top center of the display shows the mode
selected (“ABS” or “Diff”).
* |f XYZ color space was selected in step
selected.
4, “Diff” cannot be
6. Press ENTER to start calculations. The display at right will appear.
When calculations are complete, the results will be printed out and
will also be output via the RS-232C terminal. Printing examples are
shown on the following page.
After printing is complete, the display will automatically return to meas-
urement mode.
e To stop statistical calculations before they have been printed out,
press BREAK until the tone sounds for one second. The display
will then return to measurement mode in a few seconds.
* |f statistical calculations are performed using L*C*H° color space
and the measurement data are close to the +a* axis (for example,
, measurements with hue angles of H° =5, H° = 350, etc.), the mean
value of the hue angles will be close to 180°
62
= FF Fan
Lab RES PE
statistic
gai E
> я => i od я В
ABSOLUTE MEASUREMENT MODE DIFFERENCE MEASUREMENT MODE
Уху A(Yxy)
OQ ——— FUE IM TD 137 471-—.———Q PRA 3
a
M 70 15:19
@——:n= :ü: aM 7D 131:44—6 (n= 28: 3 !
1 70 15:
O HA M
‘а Ea
To BEI x 3121 4,5200 Y —B,38 x-, 0815 4-, Bl
O—— "IN MIN
Ÿ 76,23 x 3120 y 23157 YO 0,40 x-, 0821 =~, 98:7
Q--— MEAN MERAH
TO BÉ Xx ‚2188 y 22175 TB 19 x-, 0919 2-,5028
QO——— 50 Sm
O Page O Minimum value O Date and time of first measurement on page*
@ Number of data © Mean value O Date and time of last measurement on page
© Maximum value O Standard deviation
Lab" A(L‘a*b*)
Fag SM TG 13:45 ras aM 70 15113
(ит 187 aM FO 15147 n= 17 äM FD 19114
MO ME E 9,36
L 3.55 2 44,93 b +1,34 L +8,15 2 -Q,61 & +8,14
MIN MIN Ей, 18
L Ÿ5,23 3 -1,88 В +1,78 E +4,02 a -2,19 b +3,07
MEAN MEAR E 6.37
L 53,24 в -й, 95 В +1,75 LO 42,18 a 0.16 E +6.11
20 se E E,
L Poel ox 4,54 © A L B,02 3 8,87 © 0,0%
NOS” ÓN И И
Fan SH TL 17145 ras aM 70 15718
En 250 IM TE 131541 p= 22 üM FO 13115
MER NAZ £ RFT
L 98,55 C 2,94 H*1183,3 L +8,16 5 +2,27 K +4,53
NIH MIN E 8,33
L 58,04 D 1,85 Hrils,5 | +8,82 C +8, 11 H +6,28
MERA MEAH Е 8,642
} 25,58 © 7,87 HI11T.6 L +8,67 © +2,17 H +8,37
7 -
si si E 6.85
L 8,98 5 A,91 45 Ad L 8,272 6,63 H 9,88
|
Fag SM 7D 11:22
(n= 243 SM 70 11:35
. EAR
| ! .
| E 12,97 V 11.57 2 37.38
MIN
No 12,88 Y 11.49 7 37.65
MESN
2.82 Ÿ 11,51 137,14
Ne |
8,82 Y EA 7 8.04 ©)
/
Hunter Lab Hunter A(Lab)
AN
o - = =. = = = = -
ras 38 FO 11127 Рай 1 FR 11142
.= 70 (OM TT =; Ci mn ui mp Pa
LES zE L ci Th 11:35 LA E) ЗН i Zi 11144
MES Нци тер ИВ Hunter E 9,
es “ - 1 SA + i= : - 4 - = = | -
L jel 13 = a E + a. = “2215 2 тЫ, ir 0 +, HE
BAT Li ire, MOTA E a
mid Hurts Min uste: E Ti
то - Hi % : 4 лоб - - == 4 4%.
L Ta 11 3 1:71 В +1,94 L Ea -a, 5x mE, За
$e 2 5 Li [EP dem oe ; - mo.
AEH ALAS Can Hunter E 825
mon 1 - = rc 1 Ad < = = - = mi : = —
L 3.11 3 -1,83 D +128: L -É,12 © +5,51 & -9,1%
= г. à : м. = = ai ti - - = == nu
an Hur = ! Ti Aunts >> E, Er
I =, Ea „= == - - ' - =. - - - a
L 6,05 3 BES E 9,51 | L 6.82 2 5,17 b В, В
SINS AAA SUNN
* If “Data Protect” index is set to “N” and more than 300 measurements have been taken, date and
time of first measurement will not be printed out.
63
DATA INPUT/OUTPUT
The Data Processor is equipped with an RS-232C terminal for connection with a separate computer.
When a separate computer is connected to the Data Processor, data can be transferred between the
two units and all key functions of the Data Processor can be operated from the computer.
RS-232C terminal
The RS-232C terminal of the Data Processor uses a DIN 8-pin connector (included as a standard
accessory). The pin diagram of the RS-232C terminal is shown below.
Pin number Signal Function
° 1 GND System ground
2 TXD Transmit data
3 RXD Receive data
| 3 4 RTS Request to send
5 CTS Clear to send
6 DSR Data set ready
7 DTR Data terminal ready
8 Used by AE alarm; see p. 42
* When connecting the RS-232C terminal of the Data Processor to a separate computer, a
shielded cable should be used. Connections are shown below.
Chroma Separate computer
Meter Using 25-pin D-subminiature plug — | Using 9-pin D-subminiature plug
1 7 5
2 3 2
3 2 3
4 5 8
5 4 7
6 20 4
7 6 6
* When connecting or disconnecting the data-output cable, be sure that the power switches of
both the Data Processor and the separate computer are at OFF.
COMMUNICATION PARAMETERS
Output voltage: CMOS +5V
Data format:
Start bit: 1
Data bits: 7 (ASCII code)
Parity: Even О
Stop bits: 2
Data rate: 4800 baud: (can be adjusted by authorized service personnel to between 600 and 9600
baud; 9600 baud is for data output only)
If the communication parameters (such as number of data bits, parity, stop bit or baud rate) are
different from what they should be when inputting data from the computer to the Data Processor,
a 2.5KHz tone will sound for three seconds.
Data Input
By inputting the control codes shown below, the functions of the Data Processor's keys can be
operated from the separate computer.
Control code ASCII code
(output by equivalent Key function
separate computer) (hexadecimal)
A 41 ABS. /DIFF.
B 42 BREAK
C 43 CALIBRATE
D 44 DISPLAY PRINT
E 45 ENTER
F 46 PAPER FEED
G 47 COLOR SPACE SELECT
H 48 STORED DATA LIST
| 49 INDEX SET
J 4A TIMER/CLOCK
K 4B ALL DATA CLEAR
L 4C <= (cursor key)
M 4D MEASURE
N 4E TARGET COLOR SELECT
O 4F SPACE
P 50 PAGE
Q 51 DISPLAYED DATA DELETE/RECOVER
R 52 > (cursor key)
S 53 STATISTIC
T 54 TARGET COLOR SET
U 55 +/-
V 56 () (scroll key)
W 57 AE ALARM SET
X 58 Causes display to be shown on the computer
monitor.
Y 59 Y/N
0 30 Number key 0
1 31 Number key 1
2 32 Number key 2
3 33 Number key 3
4 34 Number key 4
5 35 Number key 5
6 36 Number key 6
7 37 Number key 7
8 38 Number key 8
9 39 Number key 9
+
* |f more than one control code is input from the separate computer, only the first control code input
will be used and other control codes will be ignored.
e Termination of data input from the separate computer is indicated by CR (0D) and LF (0A) codes.
* Statistical calculations or data recall cannot be stopped using any of the control codes (including
В”).
65
Data Output
The following kinds of data can be output to the separate computer from the Data Processor by
using the keyboard or using a separate computer to input the control codes listed above for controlling
the key functions of the Data Processor:
(a) Measurement data at the time of measurement,
(b) Measurement data stored in memory (by selecting “OUTPUT” after pressing STORED DATA
LIST),
(c) The results of statistical calculations,
(d) Data in the display (by using DISPLAY PRINT),
(e) Error messages,
(1) Results of pressing ENTER,
(g) Display after deleting or recovering data, or
(h) Display after performing calibration or inputting target color.
In addition, inputting control code “X” from the separate computer will also cause the Data
Processor's display to be output to the computer.
Data is output from the RS-232C terminal according to the RS-232C standard using ASCII code.
OUTPUT FORMAT
For output of measurement data at the time of measurement:
Each measurement consists of two lines of data. Output data are the same as the printed data.
Each line of data consists of 24 characters plus delimiter codes CR (0D hexadecimal) and LF
(OA hexadecimal). An example is shown below in hexadecimal notation.
Print example Output example
Тех еб ооое 1() о о в о {5 о в о о 2() о о a 0950
Раде питбег
Date and time of
first measurement on page
de EMLIO 16113 Delimiter codos I
* A dotted line, the page number, and the date and time of the first measurement on the page will
be output before the first data set when the page is changed or after performing system reset.
|
66
For output of measurement data stored in memory, or output of results of statistical calculations:
Output data are the same as the printed data. Each line of data consists of 24 characters plus
delimiter codes CR (0D hexadecimal) and LF (OA hexadecimal). An example is shown below in
hexadecimal notation.
Print example Output example
Page number | + € + 5 + + » 0 1()+ + + 6150 0 о о 2() в о в в 25) о
Fai EMLIO 16:17
(n= 5) EMILIO dela
MAX
25,00 a —A, ÁS b - :
L 35.86 HAS E -A,
MEAN
L 28,490 = -A,E7 E -A,Ei 7E
L Id à 8,92 В 4,66 E.
Termination code
Delimiter codes
* The page number and the date and time of the first measurement on the page will be output
before the first data set when the page is changed. If all 300 measurement data have been
stored on one page, the date and time of the first measurement will not be output
e Termination of data output is indicated by 1A (hexadecimal) followed by 23 spaces (20
hexadecimal), and delimiter codes CR (0D hexadecimal) and LF (ОА hexadecimal). If “Print Out”
or “Display” is selected after pressing STORED DATA LIST, only this line of data will be output
when printout or data recall is completed.
For output of data in the display (by using DISPLAY PRINT), output of error messages, output after
performing calibration or inputting target color, or output after pressing ENTER:
Each display output consists of two lines of data. Output data are the same as the data which
appears in the display. Each line of data consists of 26 characters: a 4-space margin, 16
Characters for displayed data, a 4-space margin, and delimiter codes CR (0D hexadecimal) and
LF (0A hexadecimal). An example is shown below in hexadecimal notation.
Display example Output example
Daher Sek Eb oi 1 * ° * 5 © = = о 1) о © © © 15 ® © © © 2) о © | © 25 ©
Lhe bal НЕ РР: [20-20-2020 20/44 61 74 61 20153 65 74 20 45172 72 6F 73 20120 20 20 20 OAJOA]
ПЕ: {20 20 20 20 20/20 20 20 20 20:20 20 20 20 20120 20 20 20 20/20 20 20 20 ODJOA)
¡E
REE | {| Qt Il |
| | |
4-space Displayed data 4-space
margin margin
Delimiter codes
For output of the display after deleting or recovering data:
Output data will consist of one line of data, which is the same as the line of data which would be
printed out. The line of data consists of 24 characters plus delimiter codes CR (0D hexadecimal)
and LF (OA hexadecimal). An example is shown below in hexadecimal notation.
Display example Output example
4 EET 1 Del Leted эк} 11° ° * 5 * ®* ® ® 10 ® © ® © 19 ® ® + +200 + + +250
TT TT TT 120 2A ZA 2A 20/20 30 30 33 20120 44 65 6C 65/74 65 64 20 20|2A 2A 2A 20 ODIA!
AE A E ROA REE EEES UE
EEE EA E AE E
LL
EEE EEE REE EE EA
LE +» FF 0k Fd Fk 4B BF
Delimiter codes
67
For output of the display when control code “X” is input from a separate computer:
The display is output as one line of data consisting of 36 characters (the 32 characters of the
display, 2 characters indicating cursor position (if no cursor is in the display, 00 will be indicated),
CR (0D), and LF (0A). Examples are shown below.
When no cursor is in the display:
Display example
1 oooh 000 ef)e ee e150 ce 0900 ee e256 0003] oe e350
(30 32 34 20 20/20 20 20 20 4C120 33 35 2E 36133 61 2B 32 3412E 35 35 20 20162 20 2B 38 2E[35 37 30 30 ODIOA
Cursor position
Delimiter codes
When a cursor is in the display:
Display example
LE CC A A ir
+
X " + * " re RO A UR E A EA
" ,
Ley x AE E E RENE
1090900 50000100 0 0 01)e 0 002009 0 0. 0950 006. 06300 o e 6350
{43 41 4C 20 63[68 30 30 20 5S9/20:39 33 2E 33130 78 20 2 33131 33 47 20 20179 20 °E 33 32[31 32 30 37 ODIOA]
LL
|
Cursor position
Delimiter codes —
* For L"C*H® color space, “ ° ” is output as 7F (hexadecimal).
* For "PO0—PO0O1”, “—" is output as 7E (hexadecimal).
| hata
68
TO OUTPUT DATA IN MEMORY
1. Check that POWER switch is at ON
2. Press STORED DATA LIST. One of the three displays shown below will appear in the display.
List RES PEZ List RES FEZ List HES Für
Prim Out Ciselay [test
3. Press () (scroll key) repeatedly to select the display shown at right. [РЕ ops Foo
The displays will change in the following order: Outeut —
Liszt Hess FEZ) List RES FEZ
Print Cut | Ciselas
|
Liz=t HE= PER |
LEFT a
4. Press ABS./DIFF. to select output of absolute or difference List RES Paz
measurement data. The top center of the display shows the mode CILA
selected (ABS” or “Diff”).
* When data is output from memory in difference mode, no data List Diff Paz
will be output if the target color number selected at the time of Quteut 7
measurement contained no data when the measurement was
taken.
5. Use <=/> (cursor keys) and number keys to select the page to be List BED POL
output. Dutrut /
/
Page number
If all pages are to be output, use SPACE to set the page number to List ABS РО
all blanks. Cuitrist
6. Press ENTER to start output. Data will be output according to the
data format on p. 67. |
To stop output before output is complete, press BREAK until the tone sounds for about one second.
Data output cannot be stopped by transmitting the control code “B” from the separate computer.
+
69
PROGRAM EXAMPLES
The following are program examples which can be used when the Data Processor is connected to
an IBM-PC,
e The baud rate of the RS-232C terminal is preset to 4800 baud. The baud rate for the IBM-PC is
set in the program. When using other programs or computers, be sure that the baud rate of the
computer is set to 4800 baud.
For inputting data from the Data Processor to the separate computer at the time of measurement:
1000
1010
1020
1030
1040
1050
1060
DIM DT$(700)
OPEN “COM1:4800, E, 7 2, CS, DS, CD" AS #1
N=1
LINE INPUT #1, DT$(N)
PRINT DT$(N)
N=N+1
GOTO 1030
For inputting the data stored in memory (when listing data in memory) or the results of statistical
calculations (when performing statistical calculations) from the Data Processor to the separate
computer:
1000
1010
1020
1030
1040
1050
1060
1070
1080
1090
1100
1110
1120
1130
1140
1150
1160
DIM DT$(700)
OPEN "COM1: 4800, E, 7, 2, CS, DS, CD” AS #1
N=1
LINE INPUT #1, DT$(N)
IF LEFT$(DT$(N), 1) = CHR$(&H1A) THEN GOTO 1070
N=N+1
GOTO 1030
CLOSE #1
A=1
FOR I= À TO A +19
PRINT DT$(I)
IFI=N-1 THEN GOTO 1160
NEXT I
INPUT "PRESS Y FOR NEXT SCREEN", C$
IF C$="Y" THEN GOTO 1150 ELSE GOTO 1130
A=1: GOTO 1090
END
70
For inputting control codes from the separate computer to the Data Processor (for controlling the
Chroma Meter with the computer) and displaying the results of input instructions on the computer
monitor after the control code has been input:
e [his program cannot be used to control statistical calculations or output of data in memory from a
separate computer.
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
CLS
PRINT "INPUT COMMAND
(PRESS * TO END PROGRAM)";
K$ = INKEYS
IF K$="" OR K$ = CHR$(13)
THEN GOTO 120
IF K$="H" OR K$="9"
THEN GOTO 120
IF K$="*" THEN GOTO 620
IF K$ = "D" OR K$="E" OR
K$ = "M" THEN GOTO 230
IF K$ ="X" THEN GOTO 340
IF K$ = "Q" THEN GOTO 460
GOTO 550
PRINT
GOTO 110
PRINT K$
OPEN "COM1: 4800, E, 7, 2, CS, DS, CD”
AS #1
PRINT #1,K$
LINE INPUT #1, L$: LINE INPUT #1, M$
IF LEFT$(L$,1) = "-" THEN GOTO 280
ELSE GOTO 300
PRINT : PRINT L$ : PRINT M$
LINE INPUT #1, L$: LINE INPUT #1, M$
PRINT : PRINT L$ : PRINT M$ : PRINT
CLOSE #1
GOTO 200
PRINT K$
OPEN "COM1: 4800, E, 7, 2, CS, DS, CD”
AS #1
360
370
380
390
400
410
420
430
440
450
460
470
480
490
500
510
520
530
540
550
560
570
580
590
600
610
620
630
640
650
PRINT #1, K$
LINE INPUT #1,N$
N1$ = LEFT$(NS$, 16)
N2$ = MID$(N$, 17, 16)
CURSOR = VAL(RIGHT$(NS, 2))
PRINT : PRINT N1$ : PRINT N2$
PRINT "The location of cursor:";
CURSOR : PRINT
CLOSE #1
GOTO 200
OPEN "COM1:4800, E, 7, 2, CS, DS, CD"
AS #1
PRINT K$
PRINT #1, K$
LINE INPUT #1, O$
PRINT : PRINT O$ : PRINT : PRINT
CLOSE #1
K$ = "x"
GOTO 350
OPEN "COM1: 4800, E, 7, 2, CS, DS, CD”
AS #1
PRINT K$
PRINT #1, K$
CLOSE #1
K$="X"
GOTO 350
PRINT : PRINT
PRINT "< PROGRAM END>"
PRINT : PRINT
END
* |f control code “E” is input from the computer in calibration mode or measurement mode while
running this program, the program will stop running but will not end. If this occurs, the program
cannot be restarted without switching the Data Processor off and then on again and resetting the
computer.‘
7
REMOTE CONTROL
Measurements with the Chroma Meter can be remotely controlled by connecting an external switch
to the remote-control socket on the back of the Data Processor as shown below.
Data Processor
с External switch
el 1/8-inch O—
subminiature plug
Remote-controi socket
MEASURE or the measuring head's measuring button can also be used to take measurements
even when an external switch is connected to the remote-controi socket.
e Timer-controlled measurements cannot be started using the external switch.
BASEPLATE LOCK (CR-321)
The baseplate lock of the CR-321 can be used to keep the baseplate against the tip of the light-
projection tube. To use the baseplate lock, slide the baseplate lock to the LOCK position while
pushing the tip of the light-projection tube against the baseplate.
Note: If the measuring head of the CR-321 is used in an inverted position (with the light-projection
tube facing up), care must be taken to prevent foreign matter (such as dust, liquids, etc) from
entering the light-projection tube.
72
MEASURING SYSTEM
CR-300 Measuring Head
6
. Pulsed xenon arc lamp
. Baffle
. Diffuser plate
. Optical-fiber cable for measuring specimen
. Optical-fiber cable for monitoring illumination
Specimen
> D Oo OO OT
The optical system of the measuring head for the CR-300 is shown above. The measuring head
uses diffuse illumination, 0° viewing angle geometry (specular component included) for color measure-
ments of a wide variety of surfaces. A pulsed xenon arc (PXA) lamp inside a mixing chamber provides
diffuse, even lighting over the 8mm-diameter measuring area. Only the light reflected perpendicular to
the specimen surface is collected by the optical-fiber cable for color analysis.
CR-310 Measuring Head
a. Pulsed xenon arc lamp
b. Baffle
TN SE d c. Diffuser plate
М 4 d. Optical-fiber cable for measuring specimen
a =". e. Optical-fiber cable for monitoring illumination
de о f. Specimen
y,
ll
‘`` М
The optical system of the measuring head of the CR-310 is shown above. The measuring head
uses wide-area illumination, 0° viewing angle geometry to obtain readings that correlate well with
color as seen‘under average daylight. A pulsed xenon arc (PXA) lamp inside a mixing chamber provides
diffuse, even lighting over the 50mm-diameter measuring area. Only the light reflected perpendicular
to the specimen surface is collected by the optical-fiber cable for color analysis.
This system's use of wide-area illumination and a large measuring area results in a reading which
Is greatly influenced by the amount of specular reflection present. For this reason, glossy surfaces
should not be measured with this model.
73
CR-321 Measuring Head
a. Optical-fiber cable for measuring
a specimen
b. Optical fibers for providing
illumination
с. Specimen
d. Baseplate
er frm | _
The optical system of the measuring head for the CR-321 is shown above. The measuring head
uses 45° illumination, 0° viewing angle geometry for color measurements of glossy surfaces. A
pulsed xenon arc (PXA) lamp inside a mixing chamber provides diffuse, even lighting. This light
enters 30 optical fibers, which are arranged in a circle to provide uniform illumination over the CR-
321's 3mm-diameter measuring area. The illumination is projected onto the specimen at a controlled
angle of 45°. Only the light reflected perpendicular to the surface is collected by the optical-fiber
cable for color analysis. (The optical-fiber cable for monitoring illumination is at the mixing box and
thus cannot be seen in the above diagram.)
CR-331 Measuring Head
a. Pulsed xenon arc lamp
d b. Optical-fiber, cable for measuring
specimen
c. Optical-fiber cable for providing
illumination
d. Mixing chamber
e. Specimen
The optical system of the measuring head of the CR-331 is shown above. The measuring head
uses 45° illumination, 0° viewing angle geometry for color measurements of glossy surfaces. A
pulsed xenon arc (PXA) lamp inside a mixing chamber provides diffuse, even lighting, which enters
two separate optical-fiber cables and is projected onto the specimen surface from opposite sides
of the 25mm-diameter measuring area at an angle of 45° to the specimen surface. Only the light
reflected perpendicular to the specimen surface is collected by an optical-fiber cable for color
analysis. (The optical-flber cable for monitoring illumination is behind the optical-fiber cable for
measuring specimen and thus cannot be seen in the diagram above.) |
This system is suitable for measuring most glossy surfaces. However, highly reflective surfaces
(such as metallic surfaces) may cause measurement errors since most of the incident light will be
reflected at 45° and thus will not enter the optical-fiber cable for measuring specimen.
Since the specimen is illuminated from two opposite sides, measurement values may vary
depending on the orientation of the specimen in relation to these optical fiber cables (particularly
for linearly textured surfaces). For this reason, care should be taken that the orientation is the same
for all measurements.
74
CR-331C Measuring Head
. Pulsed xenon arc lamp
b. Optical-fiber cable for measuring
specimen
c. Optical-fiber cable for providing
illumination
d. Mixing chamber
e. Specimen
NS ZA
ПЕСО
The optical system of the measuring head of the CR-331C is similar to that of the CR-331
measuring head, and is shown above. Both measuring heads use 45° illumination, 0° viewing angle
geometry for measurements of glossy surfaces. However, in the CR-331C measuring head, the light
from the pulsed xenon arc lamp is projected onto the specimen surface at an angle of 45° to the
specimen surface by 16 optical fibers arranged in a circle around the measurement axis. This
provides uniform illumination over the CR-331C's 25mm-diameter measuring area, and eliminates
the problem of variations in measurement values according to the orientation of the specimen in
relation to the optical fibers. Only the light reflected perpendicular to the specimen surface is collected
by the optical-fiber cable for color analysis. (The optical-fiber cable for monitoring illumination is
behind the optical-fiber cable for measuring specimen and thus cannot be seen in the diagram
above.)
This system is suitable for measuring most glossy surfaces. However, highly reflective surfaces
(such as polished metallic surfaces) may cause measurement errors since most of the incident light
will be reflected specularly at 45° and thus will not enter the optical-fiber cable for measuring specimen.
75
Spectrat-response-correction filters
4
| LCD panel | | Printer |
Photoceils |
Optical fiber cable for monitoring illumination | |
1
Ra A/D converter |
=, 0 VO support
buzzer
Microcomputer
| 5-232C
terminal
Current-to-voltage converter {{}
EE. Current-to-voltage converter {2)
=
>
Current-to-voltage converter (3)
x Cr
++0 Data processor
|| Current-to-voltage converter (4)
Current-to-voltage converter (5) | Keyboard |
z
=
\ A Current-to-voltage converter {6)
rrr aia ” Optical fiber cable for measuring specimen
El — E o o —]]A—TA AE A =
|
|
| |2 |
|
|
1
| Specimen surlace
Pulsed xenon arc lamp
Xenon lamp control circuit
As shown in the diagram above, a total of six silicon photocells are used by the double-beam
feedback system of the Chroma Meter to ensure accurate and consistent measurements. Three of
the photocells monitor the output of the pulsed xenon arc lamp; the other three photocells measure
the light reflected by the surface of the specimen. Each photocell is filtered so that its spectral response
closely matches one of the CIE 1931 colorimetric Standard Observer curves (X2\, yA, or ZA), as shown
below. The photocells convert the light received by them into a current whose strength is proportional
to the brightness of the light. The current is then changed into a proportional analog voltage, which
is passed through an A/D converter and becomes a digital signal. This signal is used by the built-
in microcomputer, which determines the tristimulus values (X, Y, and 7) of the surface and performs
the calculations necessary to determine equivalent data in the desired color space. These data are
automatically stored in memory and can then be shown in the LCD (liquid crystal display) panel of
the Data Processor, printed out, used for further calculations, or output to another computer. The
functions of the built-in microcomputer are controlled from the keyboard of the Data Processor.
Spectral response
(x4) is calculated based on z\.)
—
©
i À.
©
UN
Relative sensitivity
0.0
350 400 450 500 550 600 650 700 750
| Wavelength (nm)
— Spectral response of Minolta Chroma Meters
ee CIE 1931 colorimetric Standard Observer curves
76
COLOR SYSTEMS
Minolta CR-300 series Chroma Meters offer five different color systems for measuring absolute
chromaticity [CIE Yxy (1931), L*a*b* (1976), L*C*H*% (1976), and XYZ (1931); Hunter Lab] and four
systems for measuring color difference [A(Yxy), A(L*a*b*), A(L*C*H*), and Hunter A(Lab)]. in
addition, absolute color difference AE*a is also displayed when color difference is displayed in the
A(L*a*b*) or A(L*C*H*) color systems, and absolute color difference AE is displayed in the Hunter
A(Lab) color system.
For two colors to match, three quantities defining these colors must be identical. These three
quantities are called tristimulus values X, Y, and Z as determined by the CIE (Commission
Internationale de l’Eclairage) in 1931.
Color as perceived has three dimensions: hue, chroma, and lightness. Chromaticity includes hue
and chroma (saturation), specified by two chromaticity coordinates. Since these two coordinates
cannot describe a color completely, a lightness factor must also be included to identify a specimen
color precisely.
XYZ Color System
X, Y, Z: Measured tristimulus values of specimen
The XYZ tristimulus values were defined in 1931 by the CIE, and form the basis for most
calculations in all CIE color-coordinate systems.
Yxy Color System
In the Yxy (CIE 1931) color system, Y is a lightness factor expressed as a percentage based on a
perfect reflectance of 100%. x and y are the chromaticity coordinates of the CIE 1931 x, y Chromaticity
Diagram (shown below), and are defined by the following equations:
X Y
ya Y Xiv17
where
X, Y, Z: Measured tristimulus values of specimen
Color difference values AY, Ax, and Ay are calculated as follows:
AY = Y — Y: AX =X— Xt Ay = Y — yt CIE 1931 x, y Chromaticity Diagram
y
where 4
Y, X, y: Measured values of specimen
Yt, Xt, yt: Values of target color
77
L'a*b* Color System
Equal distances in the CIE 1931 x, y Chromaticity Diagram do not represent equal differences
. in color as perceived. The CIE 1976 L*a*b* color system, however, more closely represents human
sensitivity to color and is shown below. Equal distances in this system approximately equal perceived
color differences. L* is the lightness variable; a* and b* are the chromaticity coordinates. Their defining
equations are shown below.
Z
28-16 a=500(—--)-(—X )] b=200 )*-(E£ 8]
L” = 116
| Yn Xn Yn Yn Zn
where
X,Y, Z: Measured tristimulus values of specimen
Xn, Yn, Zn: Tristimulus values of the light source used (shown below)
“Light Source” index Xn Yn Zn
“С” 98.072 100.00 118.225
“Des” 95.045 100.00 108.892
The above equations apply only when X/Xn, Y/Yn, and Z/Zn are greater than 0.008856. When X/Xn,
Y/Yn, and Z/Zn are less than 0.008856, the equations below are used to replace values in the above
equations.
X
16
Xn
116
16
116
16
116
)' is replaced by 7.787 ( = ) +
+= )'3 is replaced by 7.787 (4 )+
п A
Z ova; Z
(——)" is replaced by 7.787 (—— ) +
Color difference values AL”, Аа’, and Ab* are calculated according to the following formulas:
AL=L" — Aa*=a* —a*t b*=b" —b":
where
L, a’, b*: Measured values of specimen
Lt, at, D*t: Values of target color
Total color difference AE*a is also measured using the L*a*b* color coordinates and defined by the
equation below. L'a*b* color space and color difference AE” ao
AE*ab= V(AL*)?+(Aa*)? + (Ab*)? White
COLOR SPACE А
py [+
J A Yellow
B b*
*
Green A Red
fer
Gray
Blue
A: Target color
B: Specimen’s color
A: Target color at the same lightness level as specimen’s color
78
L*C*H* Color System
ABSOLUTE MEASUREMENTS Yellow +: Metric lightness
C*: Metric chroma
H*: Metric hue angle
Hue
¿roma ©
Metric hue angie H*
a" Red
The CIE L*C*H® color system uses the same diagram as the L‘a*b* color system, but uses
cylindrical coordinates instead of Cartesian coordinates. In this system, L* is the lightness variable, C*
is chroma and H? is the hue angle. Their defining equations are shown below.
L* =L*
C*=V(a*)? + (b*)?
Ho=tan"" ( x ) when a*>0 and b*=0 H°=0° when a=0 and b=0
* H°=90° when a=0 and b>0
HC =1 + 71 D | *
80° +tan”! ( a ) when a" <O H°=270° when a=0 and b<0
He=360° +tan”' (Z- } when a*>0 and b* <0
DIFFERENCE MEASUREMENTS
Color difference values AL* and AC* are calculated according to the following equations:
дне AC*=C" -Ci=Va")2+ (6? - Viet)? + bo)?
where
L, C*, añ, b': Measured values of specimen AL: Metric lightness difference
Et Ct ar, br: Values of target color Yellow AC*: Metric chroma difference
When measuring color difference in y AH”: Metric hue difference
this color system, AH? is not used. ————
AH” is used instead, and is defined by the equation: >
—504+—— DS.
AH*=V{AE a)? (AU)? (aC)? Bn No
> и N
30 N N Metric hue angle difference AH*
\ |
X
LA T
Y hue angie H*
_—20
>
с = ~
NA
Xs
ZT, |
1 20 30
VA | . |
* AH" is positive if metric hue angle difference is positive (i.e., if hue angle H° of the specimen is
greater than hue angle H* of the target) and is negative if metric hue angle difference is negative.
Г
Xx
N
а* Веб
81—6
0 О
<
—
79
Hunter Lab Color System
The Hunter Lab color system was developed in 1966 so that the degree of difference in measured
values would more closely match the degree of perceived color difference. L is the lightness variable;
a and b are the chromaticity coordinates. Their defining equations are shown below.
— Y. 1/2
L=100( y )
fn
_ 0.0102Xn Y.
a=175[( ———"— IY) ) €] (5 —)- ( va )]
0.00847 Zn Z
b=70[(—_—— IY) ) 2] (5 — —)- (=)!
where
X,Y, Z: Measured tristimulus values of specimen
Xn, Yn, Zn: Tristimulus values of the light source used (shown below)
“Light Source” index Xn Yn Zn
“С” 98.072 100.00 118.225
“Des” 95.045 100.00 108.892
Color difference values AL, Aa, and Ab are calculated according to the following formulas:
AL=L-Li Aa=a-a Ab=b-D
where
L, a, b: Measured values of specimen
Lt, ar, bt: Values of target color
Total color difference AE is also measured in the Lab color system and is defined by the equation
below.
AE=V(AL)?+(4a)? + (Ab)?
У
80
CARE AND STORAGE
* When dirty, the meter may be wiped with a silicone-treated cloth or other clean, dry cloth. Do not
allow alcohol or chemicals to touch the meter’s surface.
* Do not leave the meter in places subject to high humidity or temperatures higher than 40°C
(104°F) (such as inside a closed motor vehicle), or lower than —20°C (—4°F).
* Do not leave the meter in direct sunlight or near sources of heat, such as stoves, strong lights, etc.
* When the meter is to be stored for an extended period of time, place the meter in its original
packaging and put it in an air-tight container with a dehumidifying agent, such as silica gel.
To protect calibration plate from damage or fading, be sure to close the cover of the calibration
plate after use.
* |f the calibration plate becomes dirty, it may be wiped with a clean, dry cloth, preferably silicone-
treated. If the stain remains, a soft cloth moistened with lens-cleaning fluid may be used. After
cleaning calibration plate with lens-cleaning fluid, rinse calibration plate with water and wipe dry.
* The printer of the Data Processor uses thermal paper. When using this paper, pay attention to the
following points:
- Thermal paper is not suitable for long-term storage. Data printouts should be copied if they are
going to be kept for long periods of time.
- Do not touch the paper with wet or sweaty hands.
- Do not rub or scrape thermal paper with a hard object.
- When writing titles on thermal paper, use either a pencil, or a pen with water-based ink (such as
most ballpoint pens). Do not use a pen with oil-based ink.
- Do not allow solvents or adhesives (such as on cellophane tape) to come in contact with the
recording surface of thermal paper.
- Do not store thermal paper in areas subject to high heat or humidity, in direct sunlight, or near
sources of heat, such as stoves, strong lights, etc.
- Do not store thermal paper with other treated copy paper (such as diazo paper).
* |f thermal paper whose color has changed due to age and storage conditions is used for printing,
the printed characters may be difficult to read. For this reason, it is recommended that the thermal
paper used be as new as possible.
81
TROUBLESHOOTING GUIDE
If a problem occurs with the Chroma Meter, please check the following points before requesting
service. If the problem continues to occur even after the suggested corrective actions have been
taken, contact the nearest Minolta-authorized service facility.
Tone does not sound
after POWER switch is
slid to ON.
Is AC adapter connected correctly
to Data Processor and to AC
| outlet?
Connect AC adapter correctly.
(See p. 20.)
Are batteries installed correctly?
Instali batteries correctly?
(See p. 19)
Is battery power exhausted?
Replace batteries with fresh ones.
(See p. 19)
Display is blank.
Is POWER switch at ON?
Slide POWER switch to ON.
Is AC adapter connected correctly
to Data Processor and to AC
outlet?
Connect AC adapter correctly.
(See p. 20.)
Are batteries installed correctiy?
Install batteries correctly.
(See p. 19.)
Is battery power exhausted?
Replace batteries with fresh ones.
(See p. 19.)
Is viewing angle adjusted correctly?
Move viewing-angle adjustment
lever until display is easy to read.
(See p. 22.)
Ready lamp of measuring
head does not light, even
after one minute.
Is AC adapter connected correctly
to Data Processor and to AC
outlet?
Connect AC adapter correctly.
(See p. 20.)
Are batteries installed correctly?
Install batteries correctly.
(See p. 19.)
Is battery power exhausted?
Replace batteries with fresh ones.
(See p. 19)
Is measuring head connected
correctly to the Data Processor?
Connect measuring head and
Data Processor correctly.
(See p. 18)
Nothing happens when
a key is pressed.
+
Can the key being pressed be used
in the present operating mode?
(Double tone sounds to indicate
error if key cannot be used.)
Press a key which can be used in
the present mode.
Is the printer paper jammed?
Set POWER switch to OFF, wait
for a few seconds, then switch
POWER to ON again. Change the
“Print” index to “N”. (See p. 25.)
Printing cannot be performed.
Contact the nearest Minolta-au-
thorized service facility regarding
printer repair.
82
Nothing happens when
CALIBRATE, MEASURE,
or measuring head’s
measuring button is
pressed.
Is the Data Processor in the
middie of calculations?
Wait until calculations are
complete and ready lamp lights
before pressing CALIBRATE or
MEASURE.
is the Data Processor in
measurement mode?
Press BREAK to return to
measurement mode, then press
CALIBRATE or MEASURE.
If an external switch is connected
to the remote-control socket, is
that switch set at ON (closed)?
Set external switch to OFF (open).
When performing
calibration to a user-
selected surface or
inputting target-color
data using the keyboard,
the final calibration or
target-color data are
different from the data
input using the number
keys.
Was input of calibration or target-
color data performed using a
Color space other than Yxy?
When calibration or target-color
data are input using a color space
other than Yxy, a series of
conversion calculations are
performed by the Data Processor
before data are stored.
The final data are data reconverted
from the stored data, and may be
different than the input data due
to rounding off during calculations.
When recalling target-
color data, the displayed
data are different from
the data which was
displayed when the target
color was first input.
Have any conditions relating to
calibration (calibration data, setting
of “Multi Cal.” index, or calibration
channel) been changed?
Displayed target-color data is data
calculated from the original
measured data according to the
presently set calibration conditions
(calibration data, setting of “Multi
Cal.” index, or calibration channel).
The message “Now
Measuring” is shown in
the display and display
does not change, even
after several minutes.
Possible malfunction.
Contact Minolta-authorized service
facility.
Values of measured data
vary widely, even when
measuring the same
specimen.
Is the tip of the measuring head
being held flat against the
specimen surface?
Be sure to hold the tip of the
measuring head flat against the
specimen surface.
Is measuring head being moved
during measurement?
Do not move measuring head
during measurement.
When using multi-calibration
(when the “Multi Cal.” index is
set to “Y”):
Was the data in any of the
calibration cnannels changed or
deleted in between measurements?
When using multi-calibration,
the data in all calibration channels
should be kept constant for all
measurements.
The edge of thermal
paper is red.
The amount of paper remaining
in the paper chamber is getting
low.
Install new roll of thermal paper.
(See p. 21.)
Data is being printed
over previously printed
data.
Was paper installed correctly?
Install paper correctly.
(See p. 21.)
83
Data is not printed.
Is the paper installed in printer
Install thermal paper.
thermal paper? (See p. 21.)
Was paper loaded with back Install paper correctly.
(non-sensitive side) facing printer? | (See p. 21.)
If printout does not occur after Set “Print” index to “Y”.
measurement: (See p. 55.)
Is “Print” index set to “Y”?
Printout will not occur even though
DISPLAY PRINT is pressed if any
of the following conditions are true:
e Data Processor is in the middle
of a procedure.
* Data Processor is in the middle
of calculations.
* A message which appears for
only 2 to 3 seconds is shown.
* A message for system reset is
shown.
Data is not transmitted
to a separate computer
or commands are not
received from a separate
computer.
Is RS-232C cable connected
correctly to both Data Processor
and separate computer?
Connect cable correctly.
(See p. 64.)
Is the correct RS-232C cable
being used?
Check that pin numbers and
connections of the cable
correspond to those on p. 64.
Are the communication parameters
of the Data Processor (baud rate,
number of character bits, parity,
and number of stop bits) set
correctly on the separate
computer?
Set communication parameters
of separate computer to those of
the Data Processor.
(See p. 64.)
Is program being used functioning
correctly?
Use one of the program examples
in this manual. (See p. 70.)
A tone sounds for
approximately 3 seconds
when a command is
input to the Data
Processor from a
separate computer.
Communication parameters
(baud rate, number of character
bits, parity, and number of stop
bits) set on separate computer do
not match those of Data Processor.
Set communication parameters
of separate computer to those of
the Data Processor.
(See p. 64.)
|
84
OPTIONAL ACCESSORIES
Shoulder Case CR-A62
— Shoulder Case CR-A62 makes it easy to carry the Data Processor
DP-301 of the Chroma Meter CR-300 series when taking
measurements in the field.
Color tiles
Color tiles consists of 14 plates (White, Pale grey, Middle grey,
Difference grey, Deep grey, Deep pink, Red, Orange, Bright yellow,
Green, Difference green, Cyan, Deep blue, Black). They can be
used for periodic inspection of color-measuring instruments to
determine when instrument aging has become excessive and repair
is necessary.
Pivoting Base CR-A12 (For CR-300)
. Attaching the Pivoting Base CR-A12 to the measuring head of the
CR-300 ensures greater stability and accuracy in measurements.
Light-Projection Tube CR-A33c is also included.
Glass Light-Projection Tube CR-A33f (For CR-300) and CR-A33e (For CR-310)
я Glass Light-Projection Tubes CR-A33a and CR-A33e have a glass
plate at the tip and can be used for measuring wet surfaces or for
ensuring that materials such as textiles are flat during measurements.
(For CR-300)
Granular-Materials Attachment CR-A50 (For CR-300 or CR-310)
With the Granular-Materials Attachment CR-A50, the color of
powders, pastes, grains, and other granular substances can be
easily and accurately measured.
Adapter Cord MA-A10
Adapter Cord MA-A11
= > These adapter cords can be connected between the Data Processor
|| | — DP-301 and the CR-300 series measuring head, enabling you to
— separate the two units by up to one meter (MA-A10) or up to three
meters (MA-A11).
85
TECHNICAL DETAILS
e Chroma Meter CR-300 consists of the CR-300 measuring head and Data Processor DP-301;
Chroma Meter CR-310 consists of the CR-310 measuring head and Data Processor DP-301;
Chroma Meter CR-321 consists of the CR-321 measuring head and Data Processor ОР-301;
Chroma Meter CR-331 consists of the CR-331 measuring head and Data Processor DP-301;
Chroma Meter CR-331C consists of the CR-331C measuring head and Data Processor DP-301.
Measuring Head
Receptors: 6 silicon photocells (3 to measure source illumination, 3 to measure
reflected light) filtered to detect primary stimulus values for red, green,
and blue light.
Spectral response: Closely matches CIE 1931 Standard Observer curves (XzA, yA, and ZA)
Light source: Pulsed xenon arc lamp |
lllumination/
measurement system: CR-300: Diffuse illumination/0° viewing angle
(specular component included)
CR-310: Wide-area illumination/0° viewing angle
(specular component included)
CR-321, CR-331C: 45° circumferential illumination/0° viewing angle
CR-331: 45° bidirectional illumination/0° viewing angle
Measuring area: CR-300: 8mm
CR-310: ¿50m m
CR-321: d3mm
CR-331, CR-331C: ¢25mm
Short-term repeatability: Chromaticity (x, y): Within 10.0002
Color difference (AE*ab): Standard deviation within 0.07
(Measurement conditions: White calibration plate measured 30 times at
10-second intervals)
Inter-instrument
agreement CR-300: AE*ab within 0.6
CR-310, CR-331, CR-331C: AE*ab within 0.8
CR-321 AE*ab within 1.0
(Measurement conditions: Comparison of average measured values of 13
BCRA Series II color tiles to values measured with master body)
Temperature drift Less than AE*ab 0.05/%C (Measurement subject: white calibration plate)
Temperature range: Operation: 0 to 40°C (32 to 104°F)
Storage: -20 to 40°C (-4 to 104°F)
Humidity range: Less than 85% relative humidity at 35°C/95°F with no condensation
Dimensions: CR-300: 201 x 91 x 60mm (7-7/8 x 3-9/16 x 2-3/8 in.)
CR-310: 229 x 91 x 60mm (9 x 3-9/16 x 2-3/8 in.)
CR-321: 100 x 81 x 243mm (3-15/16 x 3-3/16 x 9-9/16 in.)
CR-331: 247 x 116 x 116mm (9-3/4 x 4-9/16 x 4-9/16 in.)
CR-331C: 262 x 116 x 116mm (10-5/16 x 4-9/16 x 4-9/16 in.)
Connecting cable: 1300 x ¢8.5mm (51-3/16 x ¢5/16 in.)
Weight CR-300: 670g (23-5/8 oz)
CR-310: 690g (24-3/8 oz)
— CR-321: 1225g (43-3/16 oz.)
CR-331: 1050g (37 oz.)
; CR-331C: 1400g (49-3/8 oz.)
Accessories included: CR-300: Calibration Plate CR-A43; Case CR-A60*'
CR-310: Calibration Plate CR-A44; Case CR-A64* 1
CR-321: Calibration Plate CR-A45; Case CR-A63*1
CR-331: Calibration Plate CR-A46; Case CR-A61*1
CR-331C: Calibration Plate CR-A46; Case CR-A61 * 1
(
a
86
Optional Accessories: For CR-300, CR-310, CR-321, CR-331, CR-331C: Color Calibration Plate
Set CR-A47 (set of 9 plates: red, orange, yellow, yellow-green, green,
cyan, purple, deep pink, and brown)
For CR-300, CR-310: Granular Materials Attachment CR-A50
For CR-300 only: Glass Light-Projection Tube CR-A33f; Pivoting Base
CR-A12
For CR-310 only: Glass Light-Projection Tube CR-A33e
** Case included only with purchase of measuring head and Data Processor DP-301 as a set.
87
Data Processor DP-301
Measurement modes:
~ Chromatic systems:
lluminant conditions:
Calibration channels:
Calibration functions:
Target-color channels:
Data memory:
Display range:
Display:
Printer:
Statistical calculations:
Calendar/clock/timer:
Data input/output:
Other:
Power source:
Battery performance:
Temperature range:
Humidity range:
Dimensions:
Weight:
Accessories included:
Optional accessories:
(
a
Absolute and difference
Absolute: CIE Yxy, L*a*b*, L*"C*HS and XYZ; Hunter Lab
Difference: A(Yxy), A(L‘a*b*/AE* ao, A(L"C*H*)/AE* ab, and Hunter A(Lab)/AE
CIE llluminant C or Des
20; channel 00 for standard white calibration plate, channels 01 to 19 for
user-selected reference colors
Multi-calibration: Data in all calibration channels utilized to determine
measured values
Manual: Data in a single calibration channel selected by user utilized to
determine measured values
20; set by measurement or keyboard input
Space for 300 sets of measurement data; space divisible into 20 pages;
data remains in memory even if POWER switch is set to OFF
0.01 to 160% reflectance
16 characters x 2 lines; dot-matrix LCD with adjustable viewing angle
24-character thermal-dot
Maximum, minimum, mean, and standard deviation
Date and time of first and last measurements on each memory page
stored and printed out; timer intervals user-selectable from 3 sec. to 99 min.
RS-232C format, ASCII code; transmission rate: 4800 baud (selectable by
authorized service personnel: from 600 to 9600 baud for data output or
from 600 to 4800 baud for data input); output voltage: CMOS +5V; RS-
232C terminal uses DIN 8-pin connector
High-repeatability multiple-measurement-averaging mode; remote-control
socket; AE ALARM output socket
6 AA-size alkaline-manganese or carbon-zinc (15V) or nickel-cadmium
(1.2V) batteries, or included AC adapter connected to AC power source;
memory equipped with built-in Ni-Cd battery
Alkaline-manganese: 690 measurements
Carbon-zinc: 280 measurements
Nickel-cadmium: 600 measurements
(Measurement conditions: White calibration plate measured in ABS.
measuring mode at 10-second intervals with printout in one color space
after each measurement)
Operation: 0 to 40°C (32 to 104°F)
Storage: —20 to 40%C (—4 to 104%)
Less than 85% relative humidity at 35°C/95°F with no condensation
50 x 220 x 200mm (2 x 8-1116 x 7-7/8 in.)
1300g (45-7/8 oz.) without batteries
AC Adapter (AC-A10 worldwide except N. America; AC-A10N in N. America);
thermal paper (one roll); DIN 8-pin plug (1); 35mm (1/8-inch) subminiature
plug (2)
Shoulder Case CR-A62; Adapter Cord MA-A11; Roll Paper DP-A21
(package of 20 rolls)
Specifications subject to change without notice
88
с
+
Minolta Co.,Ltd.
Radiometric Instruments Operations 2-30, Toyotsu-Cho, Suita-shi, Osaka 564, Japan
Minolta Corporation
Minolta Canada Inc.
Minolta GmbH
Minolta France S.A.
Minolta (UK) Limited
Minolta Austria Ges.m.b.H.
Minolta Camera Benelux B.V.
Minolta (Schweiz) AG
Minolta Italia s. r. |
Minolta Svenska AB
Minolta Hong Kong Limited
Minolta Singapore (Pte) Ltd.
Minolta Co.,Ltd. Seoul Office
101 Williams Drive, Ramsey, New Jersey 07446, U.S.A. Phone: 201-818-3517, 1-888-1ISD-COLOR FAX: 201-825-4374
369 Britannia Road East Mississauga, Ontario L4Z 2H5, Canada Phone: 905-890-6600 FAX: 905-890-7199
Kurt-Fischer-Strasse 50, 22923 Ahrensburg, Germany Phone: 04102-70-1 FAX: 04102-70327
365-367, Route de Saint-Germain, 78420 Carrieres-Sur-Seine, France Phone: 01-30866000 FAX: 01-30866399
Precedent Drive, Rooksley Park, Milton Keynes, MK13 8HF, England Phone: 01908200400 FAX: 01908618662
Amalienstrasse 59-61,1131 Wien. Austria Phone: 01-87882-222 FAX: 01-87882-180
P.0.Box 6000 3600 HA Maarssen, The Netherlands Phone: 030-2411411 FAX: 030-241:3849
Riedstrasse 6 8953 Dietikon, Switzerland Phone: 01-7403700 FAX: 01-7422350
Via Stephenson 37, 20157, Milano, italy Phone: 02-390111 FAX: 02-39011219
Albygatan 114 P.O.Box 9088 S-17154 Solna, Sweden Phone: 08-6277650 FAX: 08-6277685
Room 208, 2/F, Eastern Centre 1065 King's Road, Quarry Bay, Hong Kong, China Phone: 2565-8181 FAX: 2565-5601
10, Teban Gardens Crescent Singapore 608923 Phone: 563-5533 FAX: 561-9879
Baijai Bidg., 621, 55-4, Susomoon-Dong, Chung-ku, Seoul, Korea Phone: 774-5873 FAX: 774-5868
Through The Years & Around The World: A CED Sponsored Learning Fair
Providing Age-Specific & Culturally Competent Care at St. Joseph's
Enhancing Jobs & Advancing Education
At St. Joseph’s we care for patients of all ages (from neonates to geriatrics) and many different cultures.
With this comes the need for all direct care providers to be knowledgeable and skillful (or as JCAHO would
say...competent) about differences in the care of patients of varying ages & cultures. How do we assess a 3
year-old differently from a 12 year-old? How do we insert a peripheral IV in an 85 year-old compared to a
35 year-old? How best to teach a 10-year old about their asthma medication? How to communicate
effectively with a patient or colleague from another country?
Directions: Review each station with content related to your job at St. Joseph’s. Note that you might not
provide care to all ages of patients. Complete the educational activity (fishbowl question, post-test, etc.) then
have the educator at the station sign the checklist. Have fun learning about the great ways we care for
patients at St. Joseph’s.
DATE
COM PLETED
INSTRUCTOR
SIGNATURE
Culturally Competent a Age- specific Patient Education,
\dentifying Nad Resources, Identification & ing of
ADULT Age- specific Clinical Data, Performing Age-specific
Treatments, Age-appropriate Communication/interactive Skills,
_Involvement of Family &/or Si nificant Other In Plan of Care
Assessing ‘Age- specific Clinical Data, Performing Age-specific
Treatments, Age-appropriate Communication/interactive Skills,
Involvement of Family &/or Significant Other In Plan of Care,
Aging Sensitivity, Spirituality of Aging
PHARMACY SERVICES
Drug Therapy in the Elderly; Pediatric Medication
Administration
"CULTURALLY COMPETENT CARE
Definitions of Culturally Competent Care, Dimensions of
Culture, Behavioral Health Cultural Competence Pl Team,
| Working With An Interpreter, Pastoral Care Resources
Once you have completed all stations, share 1 example of how you have recently provided age-specific &
culturally competent care on the easels by the stage & participate in the free raffle!
Learner Signature: Job Title
PLEASE GIVE THIS RECORD TO YOUR SUPEVISOR.
Department
©1991 Minolta Co, Ltd. under the Berne Convention
9222-1848-21 and Universal Copyright Convention
Date:
IHAAPÁ3 Printed in Japan
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