7100 English operation manual - Singer Asia Color Analyzer 7100... · Chroma 7100 Operational Manual 1. Introduction The perception to color is a complicated process. From the physical

Chroma 7100 Operational Manual

Warranty

All Chroma instruments are warranted against defects in material and workmanship for a period of one year after date of shipment. Chroma agrees to repair or replace any assembly or component found to be defective, under normal use during this period. Chroma's obligation under this warranty is limited solely to repairing any such instrument which in Chroma's sole opinion proves to be defective within the scope of the warranty when returned to the factory or to an authorized service center. Transportation to the factory or service center is to be prepaid by purchaser. Shipment should not be made without prior authorization by Chroma.

This warranty does not apply to any products repaired or altered by persons not authorized by Chroma, or not in accordance with instructions furnished by Chroma. If the instrument is defective as a result of misuse, improper repair, or abnormal conditions or operations, repairs will be billed at cost.

Chroma assumes no responsibility for its product being used in a hazardous or dangerous manner either alone or in conjunction with other equipment. High voltage used in some instruments may be dangerous if misused. Special disclaimers apply to these instruments. Chroma assumes no liability for secondary charges or consequential damages and in any event, Chroma's liability for breach of warranty under any contract or otherwise, shall not exceed the purchase price of the specific instrument shipped and against which a claim is made.

Any recommendations made by Chroma for use of its products are based upon tests believed to be reliable, but Chroma makes no warranty of the results to be obtained. This warranty is in lieu of all other warranties, expressed or implied, and no representative or person is authorized to represent or assume for Chroma any liability in connection with the sale of our products other than set forth herein.

CHROMA ATE INC. 43 Wu-Chuan Road, Wu-Ku Industrial Park, Wu-Ku, Taipei Hsien, Taiwan Tel: 886 -2-298-3855 Fax: 886-2-298-3596 http://www.chromaate.com

i


Table of Contents

WARRANTY................................................................................................................................i

TABLE OF CONTENTS ...........................................................................................................ii

1. INTRODUCTION ...................................................................................................... 1-1

1.1 How to Use this Manual.................................................................................................................................1-1

1.2 Names of Parts................................................................................................................................................1-3

2. INSTALLATION ....................................................................................................... 2-1

2.1 Measuring Probe ............................................................................................................................................2-1

2.2 Memory Card .................................................................................................................................................2-2

2.3 RS-232C ..........................................................................................................................................................2-2

2.4 Power Line Input............................................................................................................................................2-3

2.5 Changing the Fuse..........................................................................................................................................2-4

2.6 Cleaning ..........................................................................................................................................................2-4

3. LOCAL OPERATION ............................................................................................... 3-1

3.1 Zero Calibration.............................................................................................................................................3-1

3.2 Display Mode, Synchronization Mode and Unit of Luminance .................................................................3-3

3.3 Memory Channel............................................................................................................................................3-6

3.4 Set the Standard Color Data .........................................................................................................................3-8

3.5 Calibration to a User-selected Reference Source.........................................................................................3-9

3.6 Record RGB Emission Characteristics of CRT’s phosphors....................................................................3-10

3.7 Input Memory Channel ID Name ...............................................................................................................3-12

ii


3.8 Set Analog Display Range ............................................................................................................................3-14

3.9 Set Power-on Default Status ........................................................................................................................3-19

3.10 Measurement...............................................................................................................................................3-20

3.11 White Balance Adjustment using RGB Display Mode ............................................................................3-21

4. REMOTE OPERATION VIA RS-232C ......................................................................4-1

4.1 Communication Parameters ..........................................................................................................................4-1

4.2 Transferring Data Format .............................................................................................................................4-3

4.3 Command Set ..................................................................................................................................................4-8

4.4 Source Code of Communication Program..................................................................................................4-11

5. THEORY OF OPERATION .......................................................................................5-1

5.1 Introduction to Measurement Principle .......................................................................................................5-1

5.2 CIE 1931 Color-Matching Functions............................................................................................................5-2

5.3 xyY Display Mode...........................................................................................................................................5-3

5.4 T ∆uvY Display Mode ....................................................................................................................................5-3

5.5 u′v′Y Display Mode ........................................................................................................................................5-5

5.6 RGB Display Mode.........................................................................................................................................5-6

6. TROUBLESHOOTING GUIDE..................................................................................6-1

APPENDIXES ..............................................................................................I

Appendix A RS-232C Signal Pin Assignment......................................................................... I

Appendix B Error Messages.................................................................................................... II

Appendix C Luminance Unit, Chromaticity and Terminology .......................................... IV

iii


Appendix D Specifications ................................................................................................... VI

iv


1. Introduction

The perception to color is a complicated process. From the physical point of view, stimulation and sensation of color includes three essential parts; the Sources, the Attenuators, and the Detectors. The quantitative analysis of color makes use of the following color coordinates; the x, y Chromaticity Coordinates recommended by CIE in 1931, and the u′, v′ Uniform Chromaticity Scale in 1976. They are adapted as the xyY display mode and the u′v′Y display mode in the 7100 respectively.

The measuring probe of the Color Analyzer 7100 is designed to simulate the spectral response of the human eyes. Therefore, the measured reading indicates the same color on a chromaticity coordinates as that sensed by the human eyes.

The Color Analyzer 7100 is an easy-to-use measurement instrument for the purpose of various color analysis. The instrument measurement display modes include xyY, T∆uvY, u′v′Y and RGB display mode. The RGB display mode is designed to facilitate fast and conveniently white balance adjustment. Besides, the RS-232C interface offers interface control from a remote computer of the measurement and feed back of data. Used in conjunction with the Chroma Video Pattern Generators, the 7100 functions as a part of the integrated computer-controlled automated testing and alignment system for CRT/monitor production.

1.1 How to Use this Manual

The operation manual of the Color Analyzer 7100 covers chapters discussing the topics as

below :

Sec. 1 Introduction Introductory to the 7100 including the accessories, the front panel displays and keypads, and the rear panel.

Sec. 2 Installation Discuss how to install the 7100 in details and highlight for attention.

Sec. 3 Local Operation Discuss how to operate the 7100 from the front panel.

Sec. 4 Remote Operation via RS-232C

Discuss data transfer format for remote command.

Sec. 5 Theory of Operation Describe measurement principle of the 7100 and conversion of readings among different display

1-1


modes. Sec. 6 Troubleshooting

Guide Summarize problems which the user may come across during installation or operation. Corresponded solutions are given to help the user solve the problem quickly by himself.

We recommend that the user should read this manual thoroughly before using the Color

Analyzer 7100 for the first time. It will help the user fully utilize the 7100 to achieve quick and accurate measurement.

1-2


1.2 Names of Parts

Front Panel

main switch LCD HOLD indicator

operationkeypad

socket formemory card

REMOTEindicator

ALPHAindicator

LOCKindicator

Rear Panel

110/220V

selection knob

serial port fuse box

AC power line socket probe socket BNC

connector

1-3


1-4

Measuring Probe

Receptor

Rubberyhood

Screwhole

plug

Standard Accessories

Mearsuring Probe Holder

MeasuringProbe

(II)AC Power Cord

(I)Measuring Probe Holder (III)Fuse


Fuse Box

(IV) Fuse Box

Optional Accessories

Memory Card

1-5


Display for Measurement Result Digital display zone

Displaymodeindication

Unit ofluminance LCD

Analogdisplayzone

Display Mode Indications： The lighted letters next to the measurement data indicate the display mode selected for operation. The measurement is displayed in digital and analog formats with their own display measurement data and mode indications. The four display modes available for selection are as following :

Display Mode Digital Display Analog Display xyY x、y、Y ∆x、∆y、∆Y T∆uvY T、∆uv、Y ∆x、∆y、∆Y RGB R、G、B ∆R、∆G、∆B u′v′Y u′、v′、Y ∆x、∆y、∆Y

1-6


Digital Display：The numerical LEDs display measurement values according to the selected display mode.

(1) xyY display mode. Measurement data for x and y

(according to the CIE 1931 chromaticity coordinates) and Y (luminance) are displayed. The displayed values for x and y are 1000 times the actual value.

(2) T∆uvY display mode. Measurement data for T (correlated color temperature), ∆uv (color difference from blackbody locus) and Y (luminance) are displayed. The displayed value of ∆uv is 1000 times the actual value.

(3) u′v′Y display mode. Measurement data for u′ and v′ (according to the CIE 1976UCS chromaticity coordinates) and Y (luminance) are displayed. The displayed values for u′ and v′ are 1000 times the actual value.

1-7


1-8

(4) RGB display mode. Measure the correlated intensities of R, G, and B (red, green, and blue) and display as a percentage with respect to that of the standard color.

Analog Display： The LEDs display the percent differences between the measured data and the standard color as shown below. (Note : The value of n can be set between 0.1 and 99 according to the procedure in section 3.8)

under -5% over +5%

within n%

within 2n%

within 3n%

within 4n%

within 5n%

+-

+-

+-

+-

+-

+-

In xyY, T∆uvY, or u′v′Y display mode, values for ∆x, ∆y, and ∆Y are displayed.


1-9

In RGB mode, values for ∆R, ∆G, and ∆B are displayed.

Power Switch：“l” for power on, “0” for power off.

Unit of Luminance (Y) : Luminance is presented as (cd/m2 ), or (fL).

LCD：The LCD displays operational message, ID of memory channel, the values of standard color and synchronization mode.

A sample is shown as below : Channel ID Memory

Channel CH00 [CHROMA ] AUTO 313 329 50.0

Synchronization Standard Color Mode (AUTO) x=0.313,y=0.329,Y=50.0

Memory Card Slot : Insert the memory card into slot following the direction labeled on the card. Then, turn the power on to access the data stored in the memory card. To release the memory card, press the eject key.


Operational Keys：There are 31 operational keys, which are described as follows :

0-CAL Performs zero calibration. During calibration, the receptor of measuring probe has to be isolated from ambient light. (Refer to sec. 3.1).

MODE Selects display mode. (Refer to sec. 3.2)

▲ or ▼ Searches upwards or downwards for memory channel one by one. (Refer to sec. 3.3)

FIND Searches for memory channel by ID name. (Refer to sec. 3.3)

DEF Sets power on default measuring condition, such as Y-unit, memory channel, display mode,...,etc. (Refer to sec. 3.9)

REMOTE Switches control to a remote computer via RS-232C interface. During remote operation, the red LED on the REMOTE key lights up. Press the key again to release remote interface.

HOLD Press this key, the 7100 pauses measurement and holds present measurement data on the display panel; press it again, the 7100 resumes measurement and displays new readings. During holding, the red LED on the HOLD key lights up. (Refer to sec. 3.10).

ALPHA Press ALPHA , light up the red LED on the key and switch the alpha-numeric keys to input alphabetic characters and symbols; press it again, turn off the red LED, and switch them to number.

Alpha-numeric keys (A ~ Z、SYMBOLS、0 ~ 9)

Use the ALPHA key to switch these keys to input alphabetic, symbolic, or numeric data.

NEXT Under normal mode, the NEXT key moves the cursor to the next field. During pause of measurement, when the “HOLD” LED being lightened, press this key to select synchronization mode.

SPACE This key adds a space to the input string.

ENTER Press the key to confirm data input.

RS-232 Press the key to set communication parameters for RS-232C interface. (Refer to sec. 4.1)

CAL Press the key to calibrate the user-defined reference light source except memory channel 0. (Refer to sec. 3.5)

RGB Press it to measure and save the characteristics of the CRT phosphors R/G/B. (Refer to sec. 3.6)

SC Press this key to set standard color. (Refer to sec. 3.4)

1-10


LOCK Press this key to light up the red LED on the key and to lock out the data entry using the keys in the CONTROL BLOCK. To unlock, press it twice within 0.5 seconds, the red LED switch off and those keys resume functions.

RANGE To set range of analog display. (Refer to sec. 3.8)

Y-unit This key Switches units of luminance (Y) between cd/m2 or fL. (Refer to sec. 3.2)

ID Press this key to input memory channel ID name.(Refer to sec. 3.7)

110/220V Knob： The knob is for adjusting the 7100 to adapt to the power line condition. Turn for ▼ points to 110, when the line voltage lies between 90 and 132 V. Turn to 220, when the line voltage lies between 200 and 250 V.

Fuse Box：2 pieces of fuse in the box, one is in use, and the other is a spare. Applicable fuses

must be the same rating and type as 125V/1A (or 250V/0.5A), and slow blow fuse.

1-11


2. Installation

2.1 Measuring Probe

Warning：Make sure that power line input (110/220 V) selection knob is set to the right position before proceeding to the following procedure.

1. Fasten the measuring probe holder by screws to left or right side of the main unit, the 7100. To avoid any inadvertent damage to the measuring probe, always store it in the holder except when measurement is in progress.

probe socket BNC connector

2. Make sure the main switch is set at “0”. 3. Plug the signal cable connector of the measuring probe into the socket on the rear panel

marked as “PROBE”.

Note：Before unplugging the connector of the measuring probe, power off the main switch,

to “0”, then, hold both sides the connector to pull it out of the socket. Never pull the signal cable to disconnect the connector, as the internal signal wires may be loosen, thus, results in inaccuracy of measurement.

2-1


2.2 Memory Card 1. Make sure the main switch is set at “0”. 2. Insert the memory card with the “arrow” label side going into the slot on the front panel marked “Memory Card”.

Note： Don’t insert or remove the memory card into or out of the slot when main power switch is on. Be careful to follow the direction of the arrow and check again if it stuck. Never force the memory card into the slot. Never bend or hammer the memory card. keep the memory card slot free of dust, moisture, oily stain, etc., which will cause poor connection or malfunction. Store memory card at a place without electrostatic or magnetic interference in order that data may not be lost. Use only standard PCMCIA type II memory card. (PC Card)

2.3 RS-232C Connect the RS-232C port of the C7100 and the serial port of the computer. Refer to

Appendix A, for pin assignment Press REMOTE on the 7100 or the “F1” command on the computer, the red LED on the

REMOTE key lights up, and the 7100 switches to the remote operation mode controlled from a remote PC. For details, see “Remote Operation via RS-232C”.

2-2


2.4 Power Line Input Input power rating of the 7100 can be

AC 90∼132V,50/60Hz or AC 200∼250V,50/60Hz

1. Make sure the main switch is set at “0”. 2. Turn the adjusting knob with ▼ pointing to 110, if the line voltage lies between 90 and

132 V. Turn to 220, if between 200 and 250 V. 3. Prior to connecting the other end of the power cord to the power line outlet, plug the

power cord connector in the socket on the rear panel of the 7100.

Note： To unplug the power cord, set the main switch to “0”, then, hold onto the power connector and pull it out of the socket. Never pull the power cord to disconnect, as the internal wires may be loosen and results in poor connection.

Power on the main switch： Check carefully on the following items before power on : 1. If the measuring probe has been connected to the socket on the rear panel marked

“PROBE”？ 2. If the memory card is used, has it been inserted into the “Memory Card” slot？

2-3


3. If the RS-232C port of the 7100 is connected to serial port on the remote computer, if the 7100 is operated under remote control via RS-232C？

4. If the power cord connector has been plugged into the line-in socket on the 7100 and the outlet of external power line？

When check complete, turn the power switch on, the main switch set to the “l” position,

the LCD displays the following :

DARKEN PROBE, THEN

PUSH 0-CAL KEY...

2.5 Changing the Fuse If the fuse is burnt, please replace it with a fuse of same type. The fuse is located inside the fuse box (refer to page 1-5) on the rear panel.

2.6 Cleaning Please clean the outer casing with a piece of dry cloth, and do not release it. Only a professional person can release it during maintenance.

2-4


3. Local Operation

The 7100 has factory preset default values of the color parameters, except the RGB emission

characteristics of CRT’s phosphors. The user may change them according to application required. This chapter discusses general operation including zero calibration, calibration to a user-selected reference, set standard color, set for measurement and display, and execute the measurement. Note :

In calibrating to a user selected color reference, the standard color setting will be affected.

When operating under RGB mode, setting of CRT’s phosphor characteristic does not change the setting of value of standard color.

3.1 Zero Calibration Zero calibration is required after every power on and before any measurements can be taken.

During operation, the user may also perform zero calibration any time in order to insure precision measurement result. Zero calibration resets the zero point of the probe’s by measuring a black body to provide a reference point for subsequent measurements. The following steps describe how to perform zero calibration : (Refer to the LCD displays accordingly)

1. Block any light from reaching the probe receptor by placing the probe’s receptor faced down to any flat surface with no light source.

2. After the LCD shows “PUSH 0-CAL KEY”, press 0-CAL . The 7100 runs the zero calibration routine internally, and the LCD displays the following message :

PROBE NO. 71010001

ZERO CALIBRATION

Note : Check if the “PROBE NO.” is the same as the product serial number labeled on

the measuring probe. If not, the 7100 will result in inaccurate measurement reading. 3. Upon completion of zero calibration, the LCD displays the data and the memory channel,

selected before the last power off, as follows.

CH00 [CHROMA ]

AUTO 313 329 50.0

3-1


Note： During measuring, if ambient temperature changes significantly to cause variance in measurement result, the 7100 LCD displays the following to notify the user to perform zero calibration again :

TEMPERATURE CHANGED

PLEASE DO 0-CAL

When the 7100 is running the zero calibration routine, the user may not press any keys, for this increases calibration time. The user may check if zero calibration is still valid by placing the probe’s receptor faced down to any flat surface to block light from reaching the probe receptor. If the LCD displays the following message :

OFFSET ERROR

PLEASE DO 0-CAL

Please perform zero calibration again.

3-2


3.2 Display Mode, Synchronization Mode and Unit of Luminance

Four display modes in the 7100 are selectable to present the measurement results, they are the xyY, T∆uvY, u′v′Y, and RGB display modes. See the following table :

Display Mode Description

xyY Display readings of x and y according to the CIE 1931 chromaticity coordinates and Y (luminance).

T∆uvY Display readings of T (correlated color temperature), ∆uv (color difference from blackbody locus) according to the CIE 1960UCS chromaticity coordinates and Y (luminance).

u′v′Y Display readings of u′ and v′ according to the CIE 1976UCS chromaticity coordinates and Y (luminance).

RGB Display readings for correlated intensities of R, G, and B (red, green, and blue) as a percentage to that of the standard color. (Refer to sec. 3.11)

Select Display Mode：

Press MODE repeatedly , the display mode changes in the sequence as below :

xyY RGB u'v'YΤ∆uvY

3-3


Select Synchronization Mode： The 7100 color analyzer offers the user the four synchronization modes to match with vertical scanning signals for measuring various CRTs. Details are described as follows :

Sync Mode Vertical Scanning Freq. Time of Sample Taking Explanation UNIV 100 ms It is fit to measure the

CRT of unknown vertical scanning frequency.

EXT 40 Hz - 100 Hz 2 times of vertical scanning cycle

It is fit to measure CRT by the use of external sync signal.

NTSC 60 Hz 33.3 ms It is fit to measure NTSC TV system.

PAL 50 Hz 40.0 ms It is fit to measure PAL or SECAM TV system.

If the user wants to shift the sync modes, he can press HOLD , and then NEXT . C7100 will do the shift according to the order of the following figure, and show the presently selected sync mode on the lower left corner of LCD.

UNIV EXT NTSC PAL

Attention : The preset sync mode of C7100 is UNIV. In EXT mode, an external signal of V-Sync must be connected to the EXT terminal on the

rear panel of C7100. If no sync signal is connected, the message “NO SYNC. SIGNAL” will be shown on the LCD of C7100. The display of measurement will be stopped too.

Besides sync modes, there are also the following four factors which will affect the speed of measurement. The Brightness of CRT Under Test. Display Mode Baud Rate (output the value of measurement by the use of remote control mode) Vertical Scanning Frequency of CRT

3-4


Suppose we use C7100 to measure a CRT whose brightness is adjusted to Y=150 cd/m2 , in the meantime, start the remote control mode, and set RS-232C Baud Rate as 9600, the speed of measurement is indicated as the following table: Display Modes Sync Modes

xy Y T ∆uv Y RGB u′v′ Y

*UNIV 5 3 5 5 *EXT 9 5 9 9 NTSC 9 5 9 9 PAL 7.5 5 7.5 7.5 *The vertical scanning frequency of CRT is 60Hz. Unit: Times of Measurement/Sec.

Select Unit of Luminance： Unit of luminance (Y) is presented as cd/m2 or fL, press Y-unit to change the options. And the selected unit shows on the digital display zone.

cd/m2 fL

Note： Before pressing Y-unit , make sure the data entry keys are unlocked, i.e. the red LED on the LOCK key switches off. To unlock, press the LOCK key twice within 0.5 seconds. When the user changes the unit of luminance, the luminance (Y) of the measurement reading and the standard color on the LCD change the same time to the selected unit. When the user calibrates the user selected reference source, or defines the standard color data, he has to input the value of luminance (Y) using the luminance unit selected in the 7100 system, to prevent any setting errors.

3-5


3.3 Memory Channel The main unit of the 7100 offers 12 memory channels (CH00 - CH11). It can be expanded

to 100 channels with the memory card, in which data of CH12 to CH99 are stored. Each memory channel keeps the following data :

(1)Calibrated data of the user-defined reference color. (2)Emission characteristics of the RGB phosphors of the CRT. (3)Standard color data. (4)ID name. The memory channel 0 (CH00) is calibrated to the standard color in the factory, and the user

can not modify its value, i.e. the user can not calibrate channel 0 to his own reference color standard. The user can set, however, standard color data, ID name, and characteristics of the RGB phosphors of CRT for all memory channels including CH00. Selecting the Memory Channel Method A：

Press MEM.CH ▲ or ▼ several times until the desired channel is shown on the LCD. On which the channel number is displayed at the upper left corner followed by the ID name, and the standard color data on the second line.

CH00 [CHROMA ]

AUTO 313 329 50.0

Method B：

Under normal measurement operation, the LCD displays as follows :

CH00 [CHROMA ]

AUTO 313 329 50.0

Press the numeric keys, to select the desired memory channel directly. For example, to select memory channel 10 : 1. Press the numeric key 1 , the LCD displays：

3-6


CH00 [CHROMA ]

1 313 329 50.0

2. Then press 0 , the LCD displays memory channel 10 immediately and is ready for

measurement.

CH10 [ ]

AUTO 281 311 50.0

Note： Each memory channel composes of 2 digits, the user has to enter a leading “0” for channels from 00 to 09. For instance, the channel 5 must be entered as “0”, and “5”. If the memory channel does not exist, the LCD displays the error message “ILLEGAL CHANNEL NO.”, then the LCD recovers to the previous memory channel. If the user does not enter the second digit five seconds after the first digit has been entered, the 7100 LCD recovers to display the previous memory channel and content.

Method C：

Search the memory channel by the ID name. For example, the desired memory channel has previously stored as “DYNACOLOR” in CH05. To search for it, follow the procedures as below (For input alphabetic characters, refer to sec. 3.7)： 1. Press FIND , the LCD displays：

FIND [ ]

2. Enter “D”, the 7100 searches from CH00 to CH99 and displays the first found channel

whose ID matches the leading character with the input “D”. For instance,

CH01 [DEMO ]

FIND [D ]

3. Enter “Y”, the LCD displays as below :

3-7


CH05 [DYNACOLOR ]

FIND [DY ]

4. That’s it. Because no other ID name leading with “DY” has been stored in the 7100. Press

ENTER to confirm selection, the 7100 recalls data in the memory channel named as “DYNACOLOR” and the LCD shows the following. The 7100 is ready for measurement.

CH05 [DYNACOLOR ]

AUTO 281 311 45.0

Note： During searching, press any of the keys 0-CAL 、 MODE 、 DEF 、 REMOTE 、

MEM.CH ▲ ▼ 、 RS-232 、 CAL 、 RGB 、 SC 、 ID 、 Y-unit or RANGE , the

7100 terminates the FIND operation.

3.4 Set the Standard Color Data Analog displays take the values of standard color as the reference for measurement. This

value is also used, in the RGB display mode, to calculate the relative intensity of the measured R, G, B color. The user can set the standard color data for different measurement purposes and save each standard color to a memory channel for later measurement use.

Procedure :

1. Select the desired memory channel for saving the standard color. (For operation details, see previous sec. “Memory Channel”.)

2. Press SC , the standard color data appears on the LCD and prompt for new values :

CH02 x y Y

SC 313 329 50.0

3. Use the numeric keys, enter new value for x and press NEXT . Then, do the same for y

and Y. 4. Press ENTER , thus complete setting for the standard color, and the LCD returns to

normal display for measurement.

3-8


Note： Be sure to unlock, if the red LED light on the LOCK is on, before pressing SC . To

unlock, press the LOCK twice within 0.5 seconds.

The displayed values of x and y are 1000 times of their actual values. Input the x, y value in 3-digit integers. Please set Y (luminance) value carefully according to the selected unit, input value Y in unit cd/m2, if select cd/m2, otherwise, in fL. (x＋y)/1000 ≦ 1 The value of Y ranging from 0.2~999 cd/m2 (or 0.06~291 fL). If the input value is in contradiction to the above rules, the LCD displays error message “BAD STANDARD COLOR”. Before completion, press any of the following keys (control or function keys) will terminate setting of the standard color data. They are 0-CAL 、 MODE 、 DEF 、

REMOTE 、MEM.CH ▲ ▼ 、 RS-232 、 CAL 、 RGB 、 FIND 、 ID 、 Y-unit 、

RANGE

The standard color data will be referenced to measurement in all display modes.

3.5 Calibration to a User-selected Reference Source By measuring the user-selected reference CRT (source), the correction factor for this

reference source can be stored in the 7100 to meet the user’s specific application requirement. Then, subsequent measurements on the 7100 are corrected by the factor. Each memory channel keeps individual correction factor of a user-selected reference source except CH00.

Calibration Procedure

1. Select the desired memory channel for calibration, for example, CH02. (For operation details, see previous sec. “Memory Channel”.) If the memory channel has never been calibrated to the user-selected reference, the upper right corner of the LCD shows “E01” as follows :

CH02 [ ]E01

AUTO 313 329 50.0

2. Press MODE key to select the xyY display mode.

3-9


3. Place the probe’s measuring receptor faced against the light source on the surface of the reference CRT.

4. Press HOLD , the 7100 holds the latest measurement reading on the LCD.

5. Press CAL , for calibration, the LCD displays :

CH02 x y Y

CAL 313 329 50.0

6. Use numeric keys to input the value x of the reference source, then, press NEXT to set for

y, and same for Y. 7. Press ENTER , to store the calibrated standard data and the correction factor into the

selected memory channel. 8. Press HOLD , to quit from hold and start measurements. Note： Be sure to unlock if the red LED light on the LOCK is on before pressing CAL . To

unlock, press the LOCK key twice within 0.5 seconds.

The memory channel CH00 does not accept CAL for user selected reference source calibration. Please set the value of Y (luminance) carefully according to the selected unit. Input value Y in unit cd/m2, if select cd/m2, otherwise, in fL. Perform calibration to user-selected reference source will change the standard color data at the same time. Before completion, press any of the following keys (control or function keys) will terminate calibration. They are 0-CAL , MODE , DEF , REMOTE , MEM.CH, ▲ , ▼ ,

RS-232 , CAL , RGB , FIND , ID , Y-unit , and RANGE The CRT taken as the user-selected reference should be stable.

3.6 Record RGB Emission Characteristics of CRT’s phosphors When operating under the RGB display mode, the RGB emission characteristics of CRT’s

phosphors must be input to the 7100, before taking any CRT white balance adjustment. Note：

3-10


The emission characteristics of the reference CRT must be the same type (same model, same brand) as the CRTs to be measured. Record of RGB emission characteristics can only be taken after performing zero calibration.

Procedure

1. Press MODE several times to select the RGB display mode. 2. Select the memory channel for storing emission characteristics (For details, refer to

description for “Memory Channel” in sec. 3.3). If emission characteristics has never been recorded in the selected channel, the LCD displays “E01” on the upper right corner.

CH02 [ ]E01

AUTO 313 329 50.0

3. Press RGB , the LCD displays :

CH02 1 2 3

R G B

4. Record Red emission characteristics of phosphors :

a. Generate pure Red on the CRT. b. Place measuring probe’s receptor on surface of the CRT. c. Press 1 , an * appears left to the R on the LCD, indicating that the Red emission

characteristics is recorded.

CH02 1 2 3

*R G B

5. Record Green emission characteristics of phosphors :

a. Generate pure Green on the CRT. b. Place measuring probe’s receptor on surface of the CRT. c. Press 2 , an * appears left to the G on the LCD, indicating that the Green emission


CH02 1 2 3

*R *G B

3-11


6. Record Blue emission characteristics of phosphors :

a. Generate pure Blue on the CRT. b. Place measuring probe’s receptor on surface of the CRT. c. Press 3 , an * appears left to the B on the LCD, indicating that the Blue emission


CH02 1 2 3

*R *G *B

7. Press ENTER key to confirm. Note： Be sure to unlock, if the red LED light on the LOCK is on, before pressing RGB . To

unlock, press the LOCK key, twice within 0.5 seconds.

Record the emission characteristics dose not change the standard color data. Before completion, press any of the following keys (control or function keys) will terminate calibration. They are 0-CAL 、 MODE 、 DEF 、 REMOTE 、 MEM.CH

▲ , ▼ 、 RS-232 、 CAL 、 RGB 、 SC 、 ID 、 Y-unit 、 RANGE

3.7 Input Memory Channel ID Name The identification name of a memory channel makes the user easy to distinguish among the

many channel numbers. Names can be freely assigned as model name of the CRT, or coded as the chromaticity coordinates,..., etc. The maximum length of ID is 10 characters, and can be made up in combination of any of the alpha-numeric characters as ("A"-"Z"), ("0"-"9"), or the symbolic characters. Procedure

1. Select memory channel number to be named. 2. Press ID , the previous ID name (including a blank one) is displayed on the LCD, and the

cursor locates under the first character of the ID name.

CH02

3-12


[ ]

3. Enter the desired name using combination of numeric keys, ALPHA , NEXT , SPACE , or

SYMBOL key. a. For example : the desired ID is "ABCD-95". b. Press ALPHA , the red LED on ALPHA lights up indicating the alpha-numeric keys

input in alphabetic character. c. Press AB , the LCD displays :

CH02

[A ]

d. Press NEXT , move the cursor to the next character as below :

CH02

[A ]

e. Press AB , the LCD displays :

CH02

[AA ]

f. Press AB again, the second A changes to B as below :

CH02

[AB ]

g. Press CD , the cursor move automatically to the third character as below :

CH02

[ABC ]

h. Press NEXT , the LCD displays :

3-13


CH02

[ABC ]

i. Press CD twice, the LCD displays :

CH02

[ABCD ]

j. Press SYMBOL , several times until “-” shows on the LCD.

CH02

[ABCD- ]

k. Press ALPHA to switch alpha-numeric keys back to numeric mode, then press 9

followed by 5 , the LCD displays :

CH02

[ABCD-95 ]

l. Finally, press ENTER to confirm ID input and store the ID name into the memory

channel, then the LCD resumes normal display.

Warning： Be sure to unlock if the red LED light on the LOCK is on, before pressing ID . To

unlock, press the LOCK , twice within 0.5 seconds.

Before confirmation (by ENTER ), press any of the following keys (control or function

keys) will terminate input procedure of ID name. They are 0-CAL 、 MODE 、 DEF 、

REMOTE 、MEM.CH ▲ ▼ 、 RS-232 、 CAL 、 RGB 、 SC 、 FIND 、 Y-unit

and RANGE keys.

3.8 Set Analog Display Range The analog display LEDs indicate the degree of deviation of the current measurement

3-14


reading as compared to the standard color. Hence, the user is easy to check if the measured color lies within acceptable tolerance with respect to the standard color.

over +5n%under -5n%

within ±n%

within ±2n%

within ±4n%

within ±5n%

within ±3n%

When measurement using RGB display mode, the analog LED displays ∆R, ∆G, and ∆B.

When measurement using other display modes, the analog LED displays the ∆x, ∆y, and ∆Y. Each LED represents certain % deviation of the ∆x, ∆y, and ∆Y (or ∆R, ∆G, ∆B) from standard. The (n) is a programmable multiplier of %. The user is allowed to set one for ∆x and ∆y, and the other for ∆Y. Further more, in the RGB display mode, the multiplier is in common for all ∆R, ∆G, and ∆B.

Deviation of the measured color vs. standard color is calculated according to the following formulas. Formulas：

(1) In the xyY, T∆uvY, or u'v'Y display mode

∆x x xx

100(%)s

s=

−

×

∆y y yy

100(%)s

s=

−

×

∆Y Y YsYs

100(%)=−

×

The above x, y, Y are the measured value, and the xS , yS, YS are of the standard color.

3-15


(2) In the RGB Display mode ∆R，∆G，∆B

∆

∆

∆

R R RsRs

G G GsGs

B B BsBs

=−

×

=−

×

=−

×

100

100

100

(%)

(%)

(%)

The percentage difference of R and Rs The percentage difference of G and Gs The percentage difference of B and Bs

∆R，G/R，B/R based on R

∆R R RsRs

R

GR

G RR

BR

B RR

=−

× = −

=−

×

=−

×

100 100

100

100

(%) (%)

(%)

(%)

The percentage difference of R and Rs The ratio of G to R (in analog display of ∆G) The ratio of B to R (in analog display of ∆B)

R/G，∆G，B/G based on G

RG

R GG

G G GGs

G

BG

B GG

S

=−

×

=−

× = −

=−

×

100

100 100

100

(%)

(%) (%)

(%)

∆

The ratio of R to G (in analog display of ∆R) The percentage difference of G and Gs The ratio of B to G (in analog display of ∆B)

R, G, B : The value of measurement displayed in digital display. It is relative to the ratio value of the standard color value, 100. Rs, Gs, Bs : The standard color value. It has been adjusted to the relative intensity value,

100.

3-16


Set analog display range for xyY display mode

1. In the xyY, T∆uvY, or u'v'Y display modes, press RANGE , the LCD displays present analog display range, and the cursor locates under the first digit as follows :

ANALOG x,y Y

RANGE(%) 1.0 1.0

2. Input the x, y analog display range using the numeric keys 0 to 9 or .. The cursor will

move automatically to the next digit after each numeric key is pressed. 3. Press NEXT key, and do the same as step 2 for input analog display range of Y.

4. Press ENTER key to confirm. Select the Ways of Analog Display in RGB Mode C7100 provides the user with three different ways of analog display to meet different requirements. The ways of analog display are selected as follows: For example, select R/G, ∆G and B/R as the ways of analog display in RGB mode. In the beginning, press HOLD , and then the numerical key 0 after the indicating lamp of HOLD has been lighted. LCD will display as follows: the present selection

RGB −> ∆R ∆G ∆B indicates the next page ∆R G/R B/R ▼ Press ▲ and ▼ to select the indicator (RGB→). Please press ▼ . ∆R ∆G ∆B RGB −> ∆R G/R B/R ▼

3-17


Press ▼ once more.

RGB −> R/G ∆G B/G ▲ indicates the previous page In the end, press ENTER to confirm, and finish the selection of the ways of analog display in RGB mode. At this moment, LCD displays normal messages. Attention: The indicating lamps by the area of analog display--- ∆R, ∆G, ∆B are used only to indicate

the display mode of RGB, not the different ways of analog display. Set analog display range for RGB display mode

1. In the RGB display mode, press RANGE , the LCD displays present analog display range, and the cursor locates under the first digit as follows :

(1) ∆R, ∆G, ∆B

ANALOG RGB

RANGE(%) 1.0

(2) ∆R, G/R, B/R

ANALOG R B/R,G/R

RANGE(%) 1.0 1.0

(3) ∆G, R/G, B/G

ANALOG G R/G,B/G

RANGE(%) 1.0 1.0

3-18


2. Input the RGB analog display range using the numeric keys 0 to 9 or ..The cursor will move automatically to the next digit after each numeric key is pressed.

3. Press NEXT key, and do the same as step 2 for input analog display range of G/R, B/R or R/G, B/G.

4. Press ENTER key to confirm.

Note： Be sure to unlock, if the red LED light on the LOCK is on, before pressing RANGE . To


Range for n is : 0.1≤ n ≤ 99, if the user inputs n which is not in this range, an error message “ILLEGAL VALUE!” will be shown on the LCD. In the middle of setting, pressing any key others than HOLD , ALPHA , NEXT , SPACE and numeric keys, will cancel the setting process. Once the range of analog display has been set, every memory channel refers to it for display. The above setting values n for analog display range is saved in the non-volatile memory automatically as power-on default.

3.9 Set Power-on Default Status The following status can be stored in order that the user need not to setup each time after

power-on. (1) Display Mode (2) Memory Channel (3) Unit of Luminance (Y) (4) Synchronization Mode

Setup Procedure

1. Press MODE repeatedly to select the desired display mode.

2. Press Y-unit to select the desired unit of luminance. 3. Select the desired memory channel. 4. Select the desired synchronization mode. 5. Press DEF to save the above setups as power-on default. The 7100 will recover this

default status at later power-on.

3-19


3.10 Measurement Upon completion of all setup preparation, color measurement can be taken by following the

steps :

1. Press MEM.CH ▲ or ▼ repeatedly to select the desired memory channel. The channel calibration (to a user-selected reference), record (for emission characteristics of phosphors of a CRT), and setup (for standard color) must be set before measurement. Otherwise, the 7100 uses the factory calibrated values as default to carry out measurement.

2. Place the measuring probe’s receptor against the surface of the CRT, measurement result

is displayed immediately on both the digital and analog display zones.

Note： Before measurement or calibration, the electrostatic discharge should be done on the surface of the CRT to avoid any interference.

Measurement Hold

1. Press HOLD , the 7100 holds the present measurement readings of both the digital and the analog displays, and stops measurement.

2. Press HOLD again, the 7100 resumes measurement and display. 3. When on HOLD, if the user changes the display mode or the luminance unit, the 7100

calculates and converts readings to the new display mode. 4. When on HOLD, pressing NEXT to select one of the synchronization modes from

“NTSC”, “PAL”, “EXT” and “AUTO”. 5. If the user press 0-CAL during hold, the 7100 terminates measurement and initiates zero-

calibration.

Presentation of measurement (1) Digital Display Zone

The 7100 displays the digital measurement readings on the digital display zone following the selected display modes as below:

xyY mode： x,y (CIE 1931 chromaticity coordinates) and Y. T∆uvY mode： T,∆uv(Correlated Color Temperature and CIE 1960 UCS chromaticity

difference) and Y.

3-20


u′v′Y mode： u′,v′ (CIE 1976 UCS chromaticity coordinates) and Y. RGB mode： relative intensity of R, G, and B beams of a CRT.

Note： The displayed values of the above x, y, ∆uv, u′, and v′ are 1000 times of the actual value. Range of Y: 0.2~999 cd/m2 (0.06~291 fL) T: 2000~20000K ∆uv: |∆uv| < 0.1 R, G or B: 0.1~999% If the value of Y is smaller than 0.20 cd/m2 (0.06fL), the LED display flashes. If the value of Y is greater than 999 cd/m2 (291fL) or when the LCD shows message “OVER”, the digital LED displays "---".

(2) Analog Display Zone

Analog display shows the percent deviation of the measurement values compared with the standard color data. In the xyY , T∆uvY, and u′v′Y display modes, the analog display shows ∆x, ∆y and ∆Y, whereas, in the RGB display mode, it shows ∆R, ∆G and ∆B. Programming of percentage scale is discussed in “Set Analog Display Range” (Refer to sec. 3.8).

3.11 White Balance Adjustment using RGB Display Mode

In the RGB display mode, the 7100 measures the relative intensity of each R, G, B beam and compares to the previously recorded standard RGB emission characteristics of phosphors, and displays the value in % of the standard color. Adjustment of any gun does not change readings of other beams. Hence, when adjust intensity of any of the three beams, (for instance R) the intensity readings of the other two beams (G and B) does not change. Individual adjustment of the R, G, and B makes it easy to match the standard color during white balance adjustment of a CRT. Before executing white balance adjustment (in RGB display mode), the following procedures must be done : Record RGB emission characteristics of CRT’s phosphors (Refer to sec. 3.6）。 Set the Standard Color Data (Refer to sec. 3.4）。

3-21


If the measurement readings of R/G/B are 100(%), the CRT is measured to have color

and brightness matching the standard color.

If the measurement readings of R/G/B are equal to each other but not 100, the CRT is measured to have the same chromaticity coordinates x, y as that of the standard color but different luminance. Thus the user only needs to adjust the brightness of the CRT to make all the readings of R/G/B to 100 or fall within the acceptable tolerance to complete the adjustment process. Adjustment Procedure：

1. Select the memory channel in which the stored standard color has been set and R/G/B emission characteristics records have been taken on the same type of CRT as that to be measured.

Assume that before adjustment, the readings of the CRT R/G/B

show the values as the right : 2. Adjust intensity reading of the Red gun to be 100. 3. Adjust intensity reading of the Green gun to be 100. 4. Adjust intensity reading of the Blue gun to be 100. 5. When all readings of R/G/B are exactly 100, or fall within the

range of deviation allowance, the white balance adjustment is completed.

3-22


Note： In some CRT, intensity of the Green or Blue gun is not individually adjustable. Hence, the user needs to adjust brightness of the CRT in order that the relative intensity of this gun is 100, then adjust the relative intensity of the other two guns to 100 to complete the white balance adjustment.

3-23


4. Remote Operation via RS-232C

The 7100 offers a serial communication interface, RS-232C, for remote controlled operation. The user can operate from a remote PC using the built-in command set to control 7100 operation, edit its parameters, or fetch measurement data. Thus, the 7100 can function as auto-testing module in the computer controlled production or quality-assurance system.

4.1 Communication Parameters The 7100 offers the following programmable communication parameters. The user may set

the communication parameters to establish handshaking with a remote computer.

Baud Rate：150,300,600,1200,2400,4800,9600,19200 Data Word Length ：7,8 bits Parity：None, Even, Odd Stop Bits：2 (fixed)

Procedures for setting communication parameters

Set the following parameters, for instance :

Baud Rate：4800 Data Word Length ：7 bits Parity：Even

1. Be sure to unlock the control for data entry if the red LED on the LOCK key is on. To


2. Press RS-232 , the cursor locates at the field of BAUD, the LCD shows as below :

RS-232C BAUD=9600

DATA=8 PARITY=NONE

3. Press MEM.CH ▲ key repeatedly, the BAUD rate changes one by one as below :

9600 19200 150 300

4800 2400 1200 600

4-1


Press MEM.CH ▼ key, it reverses the direction. When the option 4800 displays, press

NEXT to select the baud rate, the cursor moves to the field of DATA BIT.

4. Press MEM.CH ▲ or ▼ , the options for DATA BIT changes between 7 and 8. Select 7,

by pressing NEXT , the cursor moves to the field of PARITY.

5. Press MEM.CH ▲ (or ▼ , for reverse direction), the options for PARITY changes as below :

NONE ODD EVEN

Select EVEN。

6. Finally, press ENTER to confirm setting communication parameters for RS-232C.

Note：

RS-232C parameters are stored in the non-volatile memory in the 7100 as power-on default. In the middle of setting parameters, if the user press any keys except NEXT , ▲ , ▼ or

ENTER , the 7100 will terminate parameters setting, and the previous setting value is kept.

The factory default communication parameters are : Baud Rate = 9600, Data Word Length = 8 , Parity = None, Stop Bits=2 (fixed)

4-2


4.2 Transferring Data Format The 7100 could switch to remote control mode by :

(1) Press the REMOTE key on the front panel of the 7100, or, (2) Receive "F1" command from computer via RS-232 port.

To exit from remote control mode : (1) Press the REMOTE key on the front panel of the 7100, or, (2) Receive "F0" command from computer via RS-232 port.

Input Command Formats The 7100 accepts commands string of up to 256 bytes, including the delimiters (“&” or “；”)

and a terminator. The delimiter comes between two commands, and the terminator is required at the end for the 7100 to execute those commands string accurately. Except for command “F” and “P” other remote commands are valid only when the 7100 enters into remote control mode. Delimiter ："&" or "；" Terminator： <CR> (Carriage Return, ASCII code 0DH ) or

<LF> (Line Feed, ASCII code 0AH ) or <CR><LF> or <LF><CR> Output Data Formats

Upon receiving of remote commands, the 7100 will analyze it for any syntax. If the received commands are correct, the 7100 will then response to them one by one.

The output data include : measurement data, system status, memory channel numbers and error codes. Each output stream ends with <CR> as a terminator.

The 7100 starts or ends the transmission of the measurement data as described below : (1) Command "T1" from computer, starts the transmission of measurement data. (2) Command "T0" from computer, stops the transmission of measurement data.

4-3


1.Measurement Data The 7100 transmits measurement data in the same format as its current display mode : (Notations here : "_" stands for a space, and "↵ " for a terminator)

(a) Display mode ：xyY

Output format ：P1_xxx；yyy；YYYY↵ Example ：P1_310；330；_150↵ P1_ is the leading string. xxx is the value of x times 1000 denoted as 3 significant decimal digits, the

above example x=0.310. yyy is the value of y times 1000 denoted as 3 significant decimal digits, the

above example y=0.330. YYYY is the value of Y denoted as up to 4 characters, leading spaces will be

introduced if less than 4 characters, the above example Y=150. (b) Display mode ：T∆uvY xyY

Output format ：P1_TTTTT；dddd；YYYY↵ Example ：P1__6500；_005；_150↵ P1_ is the leading string. TTTTT is the value of T (correlated color temperature) denoted as up to 5

characters, leading spaces will be introduced if less than 5, the above example T=6500.

dddd is the value of ∆uv denoted as 3 significant decimal digits, led by a space for positive value or by "-" for negative, the above example ∆uv = +0.005.

YYYY is the value of Y denoted as up to 4 characters, leading spaces will be introduced if less than 4 characters, the above example Y=150.

(c) Display Mode ：RGB Output Format ：P1_RRRRR；BBBBB；GGGGG↵

Example ：P1___101；_99.0；__114↵

4-4


P1_ Introductory string

RRRRR BBBBB

GGGGG The values of R, B, G are five digits at most. If they are not just five digits, space will be added before them. The above example : R=101, B=99.0, G=114.

(d) Display mode ：u′v′Y

Output format ：P1_uuu；vvv；YYYY↵ Example ：P1_310；330；_150↵ P1_ is the Leading string. uuu is the value of u′ times 1000 denoted as 3 significant decimal digits, the

above example u′=0.310. vvv is the value of v′ times 1000 denoted as 3 significant decimal digits, the

above example v′= 0.330. YYYY is the value of Y denoted as up to 4 characters, leading spaces will be

introduced if less than 4 characters, the above example Y=150.

2.Inquire Data stored in Memory Channel The remote command "Kxx" requests the 7100 to return data and parameters stored in a specific memory channel, including ID name and standard color data. Each probe is matched with the main unit and calibrated in the factory.

Output format ：CHnn_[SSSSSSSSSS]_xxx；yyy；YYYY↵ Example ：CH01_[CHROMA ]_313；329；__50↵

CH is the leading string for inquired memory channel. nn is the memory channel number, ranging from 00 to 99. the above

example nn=01 SSSSSSSSSS ID name for the memory channel with 10 characters. xxx is the value of x times 1000 denoted as 3 significant decimal digits, the

above example x =0.310. yyy is the value of y times 1000 denoted as 3 significant decimal digits, the

above example y=0.330.

4-5


YYYY is the value of Y denoted as up to 4 characters, leading spaces will be introduced if less than 4 characters, the above example Y=50.

3.Inquire Current Status Once C7100 receives the remote control command of Z, it will output a long string of 134 characters, including the following information: (1) The present display mode of the system (2) The present sync mode used by the system (3) The present number and ID name of memory channel used by the system (4) The range of analog display (5) The unit of brightness (6) The reserved string (7) The reserved string (8) The record mode of the characteristics of RGB Output Format: MMMMMMMMMMMMMSSSSSSSSSSSSCCCCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAA

AAAAAAAAALLLLLLLLLLLLLLLDISP-P:1___OUT-P:1_______RRRRRRR

RRREEEEEEEEEEEEE

Example: MODE:xyY_____SYNC:NTSC___CH01[CHROMA____]___RANGE_xy:1.0%

__Y:1.0%___LUMI.:cd/m*m___DISP-P:1___OUT-

P:1_______RGB:ON____W:*

_R:*_G:__B:*_↵

Meaning Characters Format M...M (Display Mode) 13 MODE:xyY_____ (xyY Display Mode)

MODE:TduvY___ (T∆uvY Display Mode) MODE:u’v’Y___ (u′v′Y Display Mode) MODE:RGB_____ (RGB Display Mode)

S...S (Sync Mode) 12 SYNC:NTSC___ (NTSC Sync Mode) SYNC:PAL____ (PAL Sync Mode) SYNC:EXT____ (EXT Sync Mode) SYNC:UNIV___ (UNIV Sync Mode)

4-6


C...C (No. and ID Name of Momory Channel)

19 CHnn[id]___ nn:number of memory channel, 2 characters

in total id:ID name of memory channel,10

characters in total

A...A (Range of Analog Display)

24 RANGE_xy:range%__Y:range%___ (xyY,T∆uv,u′v′Y Display Mode) RANGE__R:range%_GB:range%___ RANGE__G:range%_RB:range%___ (RGB Display Mode) range:includes decimal point, 3 digits in

total

L...L (Unit of Brightness) 15 LUMI.:cd/m*m___ LUMI.:fL_______

Reserved String 11 DISP-P:1___

Reserved String 14 OUT-P:1_______

R...R (The Record Mode of the Characteristics of CRT RGB)

10 RGB:ON____ RGB:OFF___

E...E (The Record of the Value of CRT RGB)

16 W:*_R:#_G:#_B:#_ #:* (if the value has been recorded) _ (if the value has not been recorded yet)

4.Inquire Status of Remote Operation The remote computer may inquire if the 7100 is operating under remote control mode by sending the “P” remote command. The 7100 returns its status code ("F0" or "F1").

Output Format ：Fn↵ Example ：F0↵

n：0 (If returns n=0, the 7100 is under local operational mode) ：1 (If returns n=1, the 7100 is under remote operational mode)

4-7


4.3 Command Set

Command Function Format Panel Key Function

I Perform zero calibration.

"I" O-CAL

M Set display mode. "M0"：set xyY mode "M1"：set T∆uvY mode "M2"：set RGB mode "M3"：set u'v'Y mode

MODE

S Select sync mode. "S0"：set NTSC Sync mode "S1"：set PAL Sync mode "S2"：set EXT Sync mode "S3"：set UNIV Sync mode

HOLD - NEXT

H Enable/Disable『measurement hold』.

"H0"：hold disable "H1"：hold enable

HOLD

U perform calibration for user-selected reference source.

"U[x：y：Y]"

Format of x or y can be any of the following. For example 0.330 is transferred as :

"0.330" ".330" or "330"

(x+y) ≤ 1

Value of Y ranging from 0.01~999, with max. 4 digits including decimal point.

No space is allowed for the numeric values between the blankets "[" and "]".

For example : "U[281:311:40.0]"

CAL

4-8


X Set the standard color value.

"X[x：y：Y]" * Refer to the norm of

command U for the limit of x，y，Y. Example：

"X[281：311：40.0]"

SC

A Set range for analog display.

"A[range∆x∆y:range∆Y]" or "A[range∆R∆G∆B]"

Value of range falls within 0.1~99(%), with max. 3 digits including decimal point.

For example "A[0.1：0.1]"

RANGE

C Select memory channel.

"Cm" Value of m falls within 00 ~ 11; and it is extended to be 00 ~ 99 when memory card is used. For example : "C6"

NUM + NUM or MEM.CH ▲ ▼

L Set the parametric values presently used by the system as the power-on default.

"L" DEF

N Input ID name of the memory channel.

"N[id]" or "Nm[id]"

Same criterion for m as described in the command C.

id：max. 10 characters.

If no m, the 7100 operates on the current-selected memory channel number.

For example : "N[CHROMA]"

ID

4-9


Y Set the unit of Brightness.

"Y0"： set the unit of brightness as cd/m2

"Y1"： set the unit of brightness as fL

Y-unit

J Set RGB emission characteristic recording mode.

"J0"：Terminate recording RGB emission characteristics. "J1"：Enter into recording RGB emission characteristics.

RGB

E End of recording RGB emission characteristics for storing into memory.

"E" ENTER

R,G,B Record emission characteristic for each R, G, or B beam.

"R"：sets R emission value "G"：sets G emission value "B"：sets B emission value

1 2 3

T Enable/Disable real-time transmission of measurement data.

"T0"：disable "T1"：enable

K Inquire standard color data stored in memory channel.

"K" or "Km"

Same criterion for m as described in the command C.

If no m, the 7100 operates on the current-selected memory channel number.

For example : "K6"

Z Inquire the current setting of the system.

"Z"

P Inquire operation mode in remote or local.

"P"

F Enable/Disable remote operation mode.

"F0"：disable "F1"：enable

REMOTE

4-10


4.4 Source Code of Communication Program The following are sample programs running on the remote controller to communicate with the

7100. The source code written both in BASIC and C are listed as follows : ‘**************************************************************** ‘ File name：SAMPLE.BAS ‘****************************************************************

1000 CLS

1010 COLOR 7

1020 PRINT " CHROMA C7100 RS-232C COMMUNICATION PROGRAM "

1030 MEASUREFLAG = 0

1040

1050 PRINT : PRINT : PRINT : PRINT

1060 PRINT " COMMUNICATION PORT SETTING :"

1070 PRINT " (1) COM1"

1080 PRINT " (2) COM2"

1090 PRINT

1100 INPUT " SELECT ? ", RD$

1110 IF LEFT$(RD$, 1) = "1" THEN

1120 OPEN "COM1:9600,N,8,2,CS,DS" FOR RANDOM AS #1

1130 ELSE

1140 OPEN "COM2:9600,N,8,2,CS,DS" FOR RANDOM AS #1

1150 END IF

1160 ON COM(1) GOSUB COMROUTINE

1170 ON COM(2) GOSUB COMROUTINE

1180 COM(1) ON

1190 COM(2) ON

1200 SD$ = "F1"

1210 PRINT #1, SD$

1220

1230 ZEROCAL:

1240 PRINT

1250 PRINT " Darken probe then press any key to perform 0-CAL "

1260

1270 DO 'Wait for key

1280 A$ = INKEY$

4-11


1290 LOOP UNTIL A$ <> ""

1300

1310 ZEROCAL1:

1320 SD$ = "I"

1330 PRINT #1, SD$

1340

1350 IF RD$ <> "E21" THEN GOTO MAINMENU

1360 PRINT " Too bright.": PRINT

1370 PRINT " Darken probe."

1380 GOTO ZEROCAL

1390

1400

1410 '**** Select operation ****

1420 MAINMENU:

1430 CLS

1440 PRINT : PRINT

1450 PRINT " Menu "

1460 PRINT " ================================="

1470 PRINT

1480 PRINT " Read data from C7100 --> R"

1490 PRINT " Send command to C7100 --> S"

1500 PRINT " Quit --> Q"

1510 PRINT

1520 PRINT " ---------------------------------"

1530 PRINT

1540 PRINT " SELECT : ( / / ) "

1550 COLOR 15

1560 LOCATE 12, 32

1570 PRINT "R"

1580 LOCATE 12, 34

1590 PRINT "S"

1600 LOCATE 12, 36

1610 PRINT "Q"

1620 COLOR 23

1630 LOCATE 12, 39

1640 PRINT "?"

4-12


1650 COLOR 7

1660

1670 DO 'Clear key buffer

1680 A$ = INKEY$

1690 LOOP UNTIL A$ = ""

1700

1710 WHILE 1 'Read keyboard

1720 A$ = INKEY$

1730 IF A$ = "S" OR A$ = "s" THEN

1740 LOCATE 12, 39

1750 PRINT " "

1760 GOTO SENDCOMMAND

1770 ELSEIF A$ = "R" OR A$ = "r" THEN

1780 GOTO MEASURE

1790 ELSEIF A$ = "Q" OR A$ = "q" THEN

1800 GOTO QUIT

1810 END IF

1820 WEND

1830

1840 '**** Send command ****

1850 SENDCOMMAND:

1860 PRINT

1870 INPUT " Enter command : ", SD$

1880 PRINT #1, SD$

1890 GOTO MAINMENU

1900

1910

1920 '**** Measure ****

1930 MEASURE:

1940 CLS

1950 LOCATE 4, 22

1960 PRINT "Hit [SPACE BAR] to stop measurement "

1970 PRINT

1980 SD$ = "F1"

1990 PRINT #1, SD$

2000 SD$ = "T1"

4-13


2010 PRINT #1, SD$

2020 COLOR 15


2040 WHILE 1

2050 IF MEASUREFLAG = 0 THEN

2060 SD$ = "T0"

2070 PRINT #1, SD$

2080 COLOR 7

2090 GOTO MAINMENU

2100 END IF

2110 WEND

2120

2130

2140 '**** Quit ****

2150 QUIT:

2160 SD$ = "F0"

2170 PRINT #1, SD$

2180 CLOSE #1

2190 COM(1) OFF

2200 COM(2) OFF

2210 CLS

2220 LOCATE 10, 20

2230 PRINT " -------- COMMUNICATION ENDED !! --------"

2240 END

2250

2260

2270

2280

2290

2300 '**** COM port service routine ****

2310 COMROUTINE:

2320 IF MEASUREFLAG = 0 THEN

2330 ALL = LOC(1)

2340 IF ALL < 1 THEN RETURN

2350 COLOR 2

2360 LOCATE 18, 5

4-14


2370 PRINT "----------- RECEIVED DATA -----------"

2380 COLOR 7

2390 LOCATE 20, 1

2400 LINE INPUT #1, RD$

2410 PRINT RD$

2420 RETURN

2430 ELSE

2440 ALL = LOC(1)

2450 IF ALL < 1 THEN RETURN

2460 LOCATE 10, 30

2470 LINE INPUT #1, RD$

2480 PRINT RD$

2490 A$ = INKEY$

2500 IF A$ = " " THEN


2520 END IF

2530 RETURN

2540 END IF

4-15


/*************************************************************/ /* File name：SAMPLE.C */ /*************************************************************/ #include <stdio.h> #include <conio.h> #include <bios.h> #include <string.h> #include <time.h> #define COM1 0 #define COM2 1 #define OFF 0 #define ON 1 #define LSR(x) Addr[x]+5 /* Line Status Register */ #define MCR(x) Addr[x]+4 /* Modem Control Register */ #define RDR(x) Addr[x] /* Receive Buffer */ #define THR(x) Addr[x] /* Transmit Holding Register */ unsigned port = COM1; unsigned Addr[2] = { 0x03f8, 0x02f8 }; void SendCommand(char *command) { while( *command != '\0' ) { while( !(inp( LSR(port) ) & 0x20) ); /* THR empty? */ outp( THR(port), *command++); } } void RxString(char *buffer) { unsigned data; time_t start, current; while(1) { /* wait data */ time( &start ); while( !( _inp( LSR(port) ) & 0x01 ) ) { /* Data ready?*/ time( &current ); /* not ready */ if( difftime(current, start) >5 ) { *buffer = '\0'; return; /* time out */ } } /* recevie data */ data = inp( RDR(port) ); *buffer++ = (char)(data & 0x00ff);

4-16


if( data == 0x0d || data == 0x0a ) { *buffer = '\0'; break; } } } void main(void) { char buffer[256], com; int ch; printf("\t C7100 RS-232C COMMUNICATION SAMPLE PROGRAM \n"); printf("\t COMMUNICATION PORT SETTING :\n"); printf("\t (1) COM1\n"); printf("\t (2) COM2\n\n"); printf("\t SELECT ? "); scanf("%c",&com); if (com == '2') port = COM2; /* Setting communication port */ _bios_serialcom( _COM_INIT, port, _COM_9600 | _COM_NOPARITY | _COM_CHR8 | _COM_STOP2 ); _outp( MCR(port), _inp(MCR(port))|0x01 ); /* DTR on */ SendCommand( "F1\n" ); /* Remote on */ _outp( MCR(port), _inp(MCR(port))&0xfd ); /* RTS off */ do { printf("\n\tDarken probe then press SPACE to perform 0-CAL\n"); while(_getch() != 0x20); SendCommand( "I\n" ); _outp( MCR(port), _inp(MCR(port))|0x02 );/* RTS on */ RxString( buffer ); } while( !strcmp( buffer, "E21" ) ); while(1) { printf("\n\n\n"); printf(" \n" ); printf(" Menu \n" ); printf(" =========================== \n" ); printf(" \n" ); printf(" Read data from C7100 --> R \n" ); printf(" Send command to C7100 --> S \n" ); printf(" Quit --> Q \n" ); printf(" \n" );

4-17


printf(" ------------------------------\n\n"); printf(" Select : ? " ); if( (ch = _getche()) == 'Q' || ch == 'q' ) { SendCommand( "F0\n" ); /* remote off */ break; } else if( ch == 'S' || ch == 's' ) { /* Send commnad */ printf( "\n Command: " ); scanf( "%s", buffer ); /* Read command */ strcat(buffer, "\r"); SendCommand( buffer ); /* Send Command */ } else if( ch == 'R' || ch == 'r' ) { /* Receive data */ SendCommand( "T1\n" ); /* Enable transmitting*/ printf("\n\n\t\t\t<Press any key to Stop>"); printf("\n"); while( !kbhit() ) { RxString(buffer); /* Receive measurement data */ printf( "\t\t\t \r" ); printf( "\t\t\t--> %s", buffer ); } _getch(); SendCommand( "T0\n" ); /* Disable transmitting */ } } }

4-18


5. Theory of Operation

5.1 Introduction to Measurement Principle

The 7100 Color Analyzer facilitates 3 sets of Color Filter to simulate CIE 1931 x 2(λ), y (λ), z (λ) Color-Matching Functions on measuring illuminated color energy of the CRT. The measured values are presented in one of the 4 display modes : xyY, T∆uvY, u′v′Y, or RGB. Block diagram of the 7100 design is illustrated as below :

a b d

c

e

f g h i

MeasuringProbe

Main Unitj

k

a. Color Filters g. Memory Card

b. Photodiodes h. Display Panel

c. Thermal Resistor i. Operational Keypad

d. I/V Conversion Circuit j. RS-232C Interface Connector

e. A/D Converter k. Microprocessor

f. Internal Memory

Measuring Procedure is stated as following：

1. When electronic beams of a CRT collide with phosphors R, G, B, these phosphors will radiate visible color light. Each of the three color filters of the measuring probe attenuates the light reaching the photodiode, thus, the photodiode generates current proportional to

5-1


the luminance intensity of incoming light. The current is then converted into voltage of Vx2, VY, Vz using the I-V conversion circuit.

2. Then, voltages from the above step are converted to digital signals by the A/D (analog-to-digital) converter. With the CPU controlled A/D converter, the vertical scanning frequency of the CRT is read and taken as a basis for deciding measurement time interval.

3. The digital signals come out from A/D converter is then, calculated in the CPU to get the tristimulus X, Y, and Z.

4.The 7100 refers to the selected Display Mode and generates accordingly the values of xyY, T∆uvY, u′v′Y, or RGB from the tristimulus value to the panel LED. If the remote computer has sent the command “T1” to the 7100 under remote operation mode, the 7100 transfers the above display values to the remote computer via RS-232C interface at the same time as LED displays.

5. The temperature sensor measures temperature of the measuring probe for necessary compensation of calibrated data, or for warning on abnormal temperature variation. (Note : The sensed temperature is different from the T, the correlated color temperature, in the T∆uvY display mode).

5.2 CIE 1931 Color-Matching Functions

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

360 390 420 450 480 510 540 570 600 630 660 690 720 750 780

x1(λ )Tris

timul

us V

alue

z(λ )

y(λ ) x2(λ )

Wavelength

5-2


5.3 xyY Display Mode

x, y ：CIE 1931 Chromaticity Coordinates Y ：Luminance

x XX Y Z

y YX Y Z

Y Y

=+ +

=+ +

=

X, Y, and Z are the Tristimulus Values, and the X is calculated with the formula :

X = 0.1672Z + X2 = X1 + X2

5.4 T ∆uvY Display Mode

T ：Correlated Color Temperature ∆uv ：color difference with respect to black body radiation locus, i.e. the offset from the

intersection point for the isotemperature line and the curve of the black body locus to (u,v).

Y ：Luminance Before further discussion on T∆uvY display mode, the black body radiation is described.

As stated on the Planck’s law, distribution of the black body radiation energy under different temperature, called spectral radiant existence, follows the formulas here :

M T C

eW m

C W mC m K

e CT

( , )( )

( )λλ λ

=−

⋅

= × ⋅

= × ⋅

−

−

−

1

25

3

116 2

22

1

3741832 101438 786 10. ( ). ( )

λ : wavelength T : absolute temperature in Kelvin (K)

5-3


If the measured light source has exactly the same distribution of radiation energy as that of the black body under certain temperature, the temperature of the black body is then, called the color temperature of the measured light. There is no real light source, however, radiates the same distribution energy as the black body. Thus, an approach, called as the Correlated Color Temperature, is defined as the temperature of the black body of which distribution of radiation energy is nearest to that of the measured light. Practically, chromaticity coordinate (u,v) of the CIE 1960 UCS is applied for the correlated color temperature. With the (u,v) chromaticity coordinate, the Plankian Locus, curve for distribution of radiation energy of the black body, and the isotemperature lines is plotted. The isotemperature line, on which each point has the same correlated color temperature as the temperature of the black body and appears visually equal, is the perpendicular line to the curve of the Plankian locus. Thus, the correlated color temperature of the measured color is the temperature indicated by the black body’s isotemperature line on which the chromaticity coordinate (u,v) of the measured light locates.

To completely describe a color, the next part of the T∆uvY display mode, the color

difference ∆uv from black body locus of a color has to be specified since all colors on the same isotemperature line have the same correlated color temperature. Any color presented in the (x,y) chromaticity coordinate can be converted into the CIE 1960 Uniform Chromaticity Scale as (u,v). The conversion formulas are :

u = 4x-2x + 12y + 3

v = 6y-2x +12y + 3

∆uv is the perpendicular distance from (u,v) to the curve of the black body locus. If (u,v) lies on the black body locus, ∆uv=0. Otherwise, a positive (+) value of ∆uv indicates (u,v) is located above the black body locus, and a negative (−) value indicates it is under the locus. See the figure below :

5-4


0.2

0.25

0.3

0.35

0.1 0.15 0.2 0.25 0.3 0.35u

v

Black Body Locus

Correlated Color Temperature

+

-

2000 K

Iso-temperatureLine

CIE 1960 UCS(Uniform Chromaticity Scale)

∆uv

6500K20000K

Note：The measurable correlated color temperature T of the 7100 ranges from 2000K to

20000K, and ∆uv < 0.1.

5.5 u′v′Y Display Mode

′ ′u v ：CIE 1976 Uniform Chromaticity Scale Y ：Luminance

′ ′u = 4x-2x +12y + 3

v = 9y-2x + 12y + 3

Remark：The relationship of the CIE 1976 UCS ( ′ ′u , ) and the CIE 1960 UCS (u,v) is : v

′′

u = uv = 1.5v

5-5


5.6 RGB Display Mode

Under the RGB display mode, the 7100 refers to the standard color data and the recorded R/G/B emission characteristics of the CRT’s phosphors to calculate the intensity of each R/G/B beam. Such intensity values are taken as standard to be compared with that of the measured CRT to show the ratio, as the relative intensity, for each R/G/B beam. Hence, if every relative intensity value (of the R/G/B) of the measured CRT are all equal to 100(%), the measured CRT performs the same as the standard CRT in color.

For the RGB display mode shows the relative luminance of the individual color R/G/B, and luminance R/G/B for most of CRT can be adjusted independently, using the RGB display mode to adjust white balance becomes a fast and convenient way to achieve optimized result.

5-6


6. Troubleshooting Guide

Problem Check Action

No message shows on the LCD after power on.

If power cord is connected? Power off , then, plug the power cord in.

If no fuse or fuse is blown? Replace a new fuse in the fuse box. If power range selector is

set correctly? Power off, then, set selector to the right range.

No response at key press. If set as remote operational mode? (i.e. REMOTE LED lights up)

Press REMOTE , turn off the LED, to cancel remote operation.

If keys in CONTROL block is LOCKed?

Press LOCK twice within 0.5 sec to release LOCK.

If key press is valid under current working status?

Try other keys which are valid under current working status.

Four beep sounds after power on, and the LCD shows the message “NO PROBE”.

If measuring probe is connected?

Power off, then, connect the measuring probe to the main unit. Power on to test again. If such error persists, please contact the nearby service center of Chroma for repair.

Light has been blocked out to reach the probe receptor during performing zero calibration, the LCD shows “TOO BRIGHT”

Power off, and on to test again. If such error persists, please contact the nearby service center of Chroma for repair.

Input calibrated data, the LCD shows the message “BAD STANDARD COLOR”

If input calibration data deviates too much from the actual standard data?

Please correct it and perform calibration again.

Measurement reading has big fluctuations in value.

If the receptor of the probe fits close to the surface of the CRT.

During measurement, never remove the measurement probe’s receptor from the surface of the CRT under test.

6-1


Measurement result is inaccurate

If surface of the probe receptor stains?

Wipe off stain on the receptor with clean cloth.

If ambient temperature changes too much?

Perform zero calibration again.

If user selected reference is proper?

Perform calibration to the user selected reference again.

If select luminance unit correctly?

Use the Y-unit key, select the right unit of luminance.

Analog display does not change.

If analog display range is set properly?

Please set proper analog display range (Refer to sec. 3.8).

If standard color is set properly?

Please set proper data of standard color. (Note : calibration to a user- selected reference source affects standard color data.)

Fail to communicate with PC via RS-232C.

If cable is connected? Or, if signal pin assignment is correct?

Please connect the 7100 and the PC with correct connection cable. (Refer to Appendix A)。

Communication parameters are set to match with that in the remote computer.

Press the RS-232 key, check and make all those parameters match with that in the computer.

If the 7100 enter into the remote operation mode?

Press REMOTE , or conduct the “F1” command from the remote computer. (Note : LED on the REMOTE key lights up.)

If communication program or address of the communication port is set correctly?

Verify communication function by the sample program attached in sec. 4.4. And modify communication port if necessary.

If communication is done by the right format ?

Please check and use the right data format according to sec. 4.2.

6-2


About the Memory Card：

Problem Check Action The LCD interchanges with the error messages“MEMORY

CARD ERROR:

INCONSISTENT PROBE#”

and“MEMORY CARD: PROBE

NO.********”

If calibration data of the other main unit has been stored into this memory card?

Please change the memory card to a new one.

The LCD shows “MEMORY CARD ERROR: IMPROPERLY

INSERTED”.

If the memory card has been inserted into the socket correctly?

Please power off, ensure insertion of memory card in good order, then power on again.

The LCD shows“MEMORY

CARD ERROR:BATTERY

LOW”.

If voltage of the battery on the memory card is less than 2.65V?

Please prepare new battery. It’s about time to replace battery with a new one.


CARD ERROR: BATTERY

BAD”.

If voltage of the battery on the memory card is less than 2.37V?

Please replace battery immediately with a new one to avoid data loss.


CHANNEL ERROR: WRITE

PROTECT”.

If write protection of the memory card is set?

Please disable the write protection of the memory card.

6-3


Appendix A RS-232C Signal Pin Assignment C7100 RS-232C Pin Assignment

Pin no. Signal Input/Output Description

1 PG Protected Ground 2 TXD Output Transmitted Data 3 RXD Input Received Data 4 RTS Output Request To Send 5 CTS Input Clear To Send 6 NC Not Connected 7 GND Signal Ground

8 to 19 NC Not Connected 20 DTR Output Data Terminal Ready

21 to 25 NC Not Connected

Connection for the 7100 to the Computer

C7100 Computer Pin no. Signal Signal Pin no. for 25-pin

D-type connector Pin no. for 9-pin

D-type connector 1 PG PG 1 NC 2 TXD RXD 3 2 3 RXD TXD 2 3 4 RTS CTS 5 8 5 CTS RTS 4 7 7 GND GND 7 5 20 DTR DSR 6 6

I


Appendix B Error Messages

Sent to the RS-232 Shown on the LCD Description

Measurement_data

_F

Measurement value exceeds measurable range, the digital LED

display flashes.

P1_data_T TEMPERATURE CHANGED

PLEASE DO 0-CAL

The measurement result will be affected if ambient

temperature changes significantly. The user should perform

zero calibration to avoid inaccuracy.

E03 BAD STANDARD COLOR! When setting standard color or calibrating to the user selected

reference, the following conditions will occur :

The entered value of xyY is not within the correct range.

(x, y =0) , (x+y > 1), (Y ≥ 1000), or (Y < 0.2)

Luminance of reference source is too low, so it is not

suitable for reference.

E04 ILLEGAL VALUE Error results in when set n for analog display range by n ≥ 100

or n < 0.1. Please re-enter valid one.

E05 The error is done because that the

user has made the command "E" while the recording of the

characteristics of RGB is not completed yet.

E07 MEMORY CHANNEL:ERROR

WRITE PROTECT

Error results in when writing data into the “write protected”

memory card. Please select the “WP” of the memory card to

the position of “OFF”.

E10 Error command format

E20 NO SYNC SIGNAL Vertical scanning signal needs to be connected to the V.sync

input port of the 7100.

E21 TOO BRIGHT! There is light to the measuring probe receptor when

performing zero calibration. Please block any light reaching

the receptor by placing the probe’s receptor faced down to flat

surface with no light source, and perform zero calibration

again.

P1_E22 Brightness is beyond the range of display.

(Y > 999 cd/m2 or Y > 291 fL)

P1_E23 OFFSET ERROR Zero calibration is wrong.

P1_E24； In the T∆uvY display mode, the measurement value exceeds

II


Luminance_value_

Y

valid displaying range :

T < 2000 , T > 20000 , or ∆uv ≥ 0.1

E25 NO PROBE! Measuring probe is not or poorly connected to the main unit.

The system halts and the LCD displays such error message.

Please turn off the 7100, plug the probe connector into the

socket of the main unit, then power on again.

E27 MEMORY CARD ERROR：

IMPROPERLY INSERTED

The memory card is not inserted well. Please power off. Be

sure that the insertion of memory card is all right, then power

on again.

MEMORY CARD ERROR：

BATTERY LOW!

Battery of the memory card is lower than 2.65V. Please

replace battery with a new one then restart the 7100.


BATTERY BAD!

Battery of the memory card is lower than 2.37V. Please

replace battery with a new one then restart the 7100.


INCONSISTENT PROBE#

Probe number stored in the memory card is inconsistent with

that stored in the main unit. Please change to a right memory

card, and restart the 7100.

III


Appendix C Luminance Unit, Chromaticity and Terminology

Conversion for Y (Luminance)

The user has to make sure which unit of luminance is applied. The 7100 offers two kinds of luminance unit. They are cd/m2 and fL (foot-Lambert). Formulas for conversion of them are as follows：

1 cd/m2 = 0.2919 fL 1 fL = 3.426 cd/m2

Remark : cd: candela m: meter fL: foot-Lambert Chromaticity

X, Y, Z： tristimulus x, y, z：chromaticity values

x XX Y Z

y YX Y Z

z ZX Y Z

1 x y

=+ +

=+ +

=+ +

= − +( )

Derived from the above formulas, we then, obtain the tristimulus values (X, Y and Z) being expressed as the measurement readings (x, y and Y) as below :

X xy

Y

Y = Y

Z zy

Y 1 x y)y

Y

=

= =− +(

IV


Common Used Standard Colors and their Chromaticity Coordinates

Standard Color CIE 1931 CIE 1976

A x=0.448 y=0.407 ′u =0.256 =0.524′vC x=0.310 y=0.316 ′u =0.201 =0.461′vD55(5500K) x=0.332 y=0.347 ′u =0.204 =0.481′vD65(6500K) x=0.313 y=.0329 ′u =0.198 =0.468′vD75(7500K) x=0.299 y=0.315 ′u =0.194 =0.459′vE(Equal Energy) x=0.333 y=0.333 ′u =0.210 =0.473′v9300K(Data Monitors) x=0.281 y=0.311 ′u =0.182 =0.454′v

Terminology CIE Commission International de l’Êclairage K Absolute temperature in Kelvin, 0K= −273.15°C candela Unit of luminance, for measuring radiation flux per unit spatial angle. UCS Uniform Chromaticity Scale.

V


Appendix D Specifications Luminance Measuring Range: 0.20~999cd/m2 or 0.06~292fL Luminance Unit: cd/m2 or fL, selectable from front panel key, and displayed on the front panel LED Display Modes: xyY, T∆uvY, ′u ′v Y, RGB Synchronization: NTSC, PAL, EXT, Univ. Displays: Digital: xyY; T∆uvY; ′u ′v Y; RGB Analog: ∆x∆y∆Y; ∆R∆G∆B; ∆R G/R B/R; R/G ∆G B/G LCD: 20 characters × 2 lines, back light Memory: 12 channels(standard) 100 channels with optional PCMCIA Memory Card Accuracy: Y: ±2% ±1digit xy: ±0.002

(Measurement conditions: standard monitor, luminance 10 cd/m2 or above, D65) Repeatability: Y:±0.3% ±1digit xy:±1% ±1digit (0.20cd/m2≤Y≤3.00cd/m2) ±0.3% ±1digit (3.00cd/m2≤Y≤999cd/m2) Other Functions: Calibration to user-selected reference Storage of channel ID name Variable analog display range Display hold Remote control Fast memory channel search Data Communication: RS-232C interface Baud rate: 300 to 19200 Operating Environment: Temperature: 0 to 40°C(32 to 104°F) Humidity: <85% RH (at 35°C with no condensation) Power: AC 90~132V, 50/60Hz, 40VA or AC 200~250V, 50/60Hz, 40VA (switchable) Dimension: Main Unit: 424(W)×133(H)×261(D)mm Measurement Probe: ∅43×144mm Cord Length of Measurement Probe: 2.5m (8.2ft) 5m(16.4ft) (optional) Weight: Main Unit: 6.1Kg (13.5lb.) Measurement Probe: 250g (8.8oz.)

VI

Documents

7100 English operation manual - Singer Asia Color Analyzer 7100... · Chroma 7100 Operational Manual 1. Introduction The perception to color is a complicated process. From the physical