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48

Illuminance Measurement Capabilities

Relative Spectral Response

The spectral response of an ideal illuminance meter would match V(l),+the spectral lumi-
nance efficiency function for photopic vision. JIS (Japan Industrial Standards) has estab-
lished a rating system that classifies illuminance meters according to how closely they match
this function. The CL-200 CHROMA METER conforms to the “general class AA” classifica-
tion.

Wavelength (nm)

Relative spectral response (%)

(Spectral
luminous efficiency) V

λ

CL-200 CHROMA METER

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Summary of Contents for CL-200

Page 1: ...CHROMA METER CL 200 INSTRUCTION MANUAL Advanced Test Equipment Rentals www atecorp com 800 404 ATEC 2832 Established 1981 ...

Page 2: ...regarding a safety warning or note Read the sentence carefully to ensure safe and correct use Denotes a prohibited operation The operation must never been performed Denotes an instruction The instruction must be strictly adhered to Denotes an instruction Disconnect the AC adapter from the AC outlet Denotes a prohibited operation Never disassemble the instrument ...

Page 3: ...hould liquid or metal objects enter the instrument turn the power OFF immediately remove the batter ies or disconnect theAC adapter from the AC outlet and contact the near est Minolta authorized service facility The instrument should not be operated if it is damaged or AC adapter is dam aged or if smoke or odd smells occur Doing so may result in a fire In such situations turn the power OFF imme di...

Page 4: ...nnect the power and restart the instrument Do not use this instrument at altitudes above 2000 meters 6560 ft This instrument is an Installation Category II product Be sure to use the specified power source when powering this instrument from an AC adapter This instrument is a Pollution degree II product Avoid use in environments where the instrument may be exposed to metallic dust or condensation H...

Page 5: ...External Power 23 Connecting the AC Adapter 23 Advanced Operations 25 Using Correction Factors CFs 26 Using CF Correction 26 Setting the CFs 26 Applying CF Correction to Measurements 30 Printing Out The Measurement Results Digital Output 31 Printer Requirements 31 Compatible printer example 31 Connecting the CHROMA METER to a Computer Digital Output 33 Separating the Receptor Head from the Body 34...

Page 6: ...e measurement mode and switches the color difference display 5 Tcp key Selects color temperature measurement display mode 6 CAL MODE switch Selects the calibration mode either NORMAL or MULTI 7 AC adapter jack Connects to an optional AC adapter AC A10 AC A10N in North America 8 Digital output terminal Outputs measurement data to a computer printer or other peripheral 1 2 3 4 5 6 7 8 9 When the sli...

Page 7: ...ays relevant setting from memory E Tripod socket F Receptor head release button Pressing this button detaches the receptor head from the main body G HOLD button RUN position When this button is popped out the CHROMA ME TER takes continuous measurements HOLD position When you press the button in the CHROMA METER pauses measurement operation and saves the most recent measurement result When you pres...

Page 8: ...6 ...

Page 9: ...7 Basic Operations ...

Page 10: ...or removing the head while the power is ON may generate an error Removing the Receptor Head The Minolta llluminance Meter allows you to take readings in either Lux lx or Foot candle fcd units Selecting measuring units 1 Set the power switch to OFF and pull the battery cover while pressing it down slightly 2 Remove two AA size batteries if it exits 3 Set the measuring unit selector to the desired p...

Page 11: ... strap as shown below 1 Pass the strap through loop of the cap string and then through the strap hook and then pass one end of the strap through the other Attaching the Cap Without the Strap If you are not using the strap attach the cap to the main body as follows 1 Untie the knot holding the cap string to the cap and remove the string from the cap ...

Page 12: ...A METER into the Case Set the cap onto the receptor window and slide the CHROMA METER into the case 3 Pass the string back through the hole in the cap and tie a knot at the end of the string so that the cap cannot come off ...

Page 13: ...batteries or different types of batteries Be sure to load batteries with the and polarities in the correct direction Neglecting any of these precautions may result in battery leakage or explosion possibly resulting in fire injury or environmental dam age 1 Set the power switch to OFF Press down lightly on the bat tery cover and pull it off Have two AA batteries ready 2 Place the batteries into the...

Page 14: ...to indicate that zero adjustment is in progress The CAL indication goes off when this adjustment is completed This adjustment is carried out electronically There is no need to attach the cap Battery Alarm When batteries start to run low a battery mark appears above the measurements on the display As batteries run lower still the mark will begin to blink at which time the CHROMA METER will no longe...

Page 15: ...urce Setting CFs for Each Mode The CL 200 CHROMA METER can store CFs correction factors for both calibration modes and can apply these to your measurement results You can use this feature to correct for disparities among different CL 200s or to adjust calibration arbitrarily as needed After setting the CFs you can use the CF key to switch use of CF correction ON or OFF Setting the CFs for NORM cal...

Page 16: ...ress MODE again to change the display mode Each press cycles you to the next display mode as shown in the illustration 2 Set the HOLD button to the RUN position pop the button out 3 Aim the receptor at the light source you want to measure The display shows the measurement result If you wish to hold the measurement push in the HOLD button If the measurement intensity is 10 lx 1fcd or less the displ...

Page 17: ...ay lets you know that the illuminance is low Specifically the following values will blink to alert you of this condi tion x y u v T uv x y u v and u v Over Alert If any of the measured values exceeds the measurement range the display will show a blinking 0 in place of the measurement results Values blink to indicate low illuminance Blinking 0 display ...

Page 18: ...ally 1 1 1 1 1 Using a Measurement Result as the Target 1 Measure the color of a source as described under Taking Color Measurements page 14 When the display shows measurement results that you feel are satisfactory for use as your target values press the HOLD button to hold these results 2 Press The display changes to show color difference parameters You can now press again to change the display m...

Page 19: ... at any time by holding down the CALL key The values remain on the screen until you release the key When taking the measurement for the target value please use the same display mode that you intend to use when taking the color difference measurements Changing the display mode after measuring the target may result in errors in the difference results If you are going to measure color difference usin...

Page 20: ...t line is blinking If you have previously set a target the target values are shown The first line is blinking 4 Use or to select the parameter the line you wish to set The digits on the selected line blink Press or as necessary to move the blinking indi cation to the line you want to set You can now enter a value for the selected line parameter Note that some parameters also allow you to set the n...

Page 21: ...UT One or more decimal points begin blinking If a target value is already set for this parameter the value is displayed The value s decimal point blinks If the set target value does not have a set decimal point all three of the line s decimal points blink 6 Press or as necessary to select the number of significant digits for the selected parameter If you use the key the number of digits changes as...

Page 22: ...Repeat steps 4 to 12 as necessary to set values for all param eters You can cancel the entry procedure by pressing the CALL key 14 Recheck you entries to be sure that they are correct and then press SET to register them The CHROMA METER writes the entered values into the target memory so that they become the target val ues You can view the currently set target values by pressing CALL If any of the...

Page 23: ...il you release the key The CHROMA METER will continue to use the currently stored target values If you wish to change the target values you must set new ones using the procedures described on pages 16 to 20 If you wish to clear the stored target values manually input 0 s into each target value field using the manual input procedure described on pages 17 and 18 If target values are cleared the CHRO...

Page 24: ...o measure The display shows the measurement results Press Tcp to display the correlated color temperature The CHROMA METER can display color temperature values from 2300 to 20000 K The CHROMA METER can display uv values up to but no including 0 1 If either the temperature reading or the uv value is outside the display range the CHROMA METER will display for both values ...

Page 25: ...under these conditions constitutes a fire hazard Switch the instrument off immediately and remove the batteries or disconnect the adapter from the outlet Then contact the nearest Minolta authorized service facility for assistance Using External Power Connecting the AC Adapter 1 Set the power switch to OFF 2 Connect the AC adapter to the AC adapter jack on the chroma meter 3 Plug the AC adapter s p...

Page 26: ...24 ...

Page 27: ...25 Advanced Operations ...

Page 28: ...n and then you key in the known values The CHROMA METER calculates the CFs based on the differences between the measured values and the keyed in values The CHROMA METER stores the CF settings in nonvolatile memory so that these values are retained even when you switch off the power or change the batteries To set the CF values follow the steps below 1 1 1 1 1 Measure the Light Source 1 Press MODE a...

Page 29: ...ant to set Note Setup of CFs for MULTI calibration mode requires use of the optional CL S1w data management software See page 13 You can now enter the correct value the known value for the selected line Note that for the Ev line you can set both the number of significant digits and the value while on the x and y lines you can set only the value To set the Ev value proceed from Step 4 below To set ...

Page 30: ...ary so that the digit you want to set next starts blinking becomes active 7 Press or as necessary to change the value of the active digit 8 Repeat steps 6 and 7 as necessary to set values for all digits When you have entered values for all digits the entire value all digits will blink You can cancel the entry procedure by pressing CALL When you are ready to move to the next line return to Step 3 E...

Page 31: ...ntered values with the held measurement values If any of the computed CF values is lower than 0 0001 or higher than 10 0000 the CHROMA METER displays the Err A message and forcibly cancels SET mode You can view CF values by pressing CF to enter CF mode and the holding down the CALL key The values remain on the screen until you release the key If any of the values you have entered are outside of th...

Page 32: ...rected results Note that the CF indication appears at the top of the display You can toggle CF correction OFF and ON by pressing the CF key Stored CF values remain in memory until you change them If you wish to clear the stored CF values return to the procedure described under Setting the CFs starting on page 26 and manually input 0s into all columns Applying CF Correction to Measurements ...

Page 33: ...ents Inc Procedure Connect the CHROMA METER to the printer using the T A12 printer cable as follows Before making the connection set the CHROMA METER s power switch to the OFF posi tion Also be sure that the printer is off After making the connection be sure that you switch the CHROMA METER on before you turn the printer on Printing may not work correctly if you switch the printer on first 1 Be su...

Page 34: ...able increases the CHROMA METER s consumed current by about 50 If you are not going to use the printer please disconnect the cable Sample Printout on DPU 201GS printer Measured value exceeded the measurement range Low light alert low illuninance Tcp and uv values are out of range Color difference measurement but no target values were set lx lx lx lx lx lx lx lx lx lx lx lx X 149 3 34530 OVER Ev 10...

Page 35: ...he software also makes it possible to use CF correction with MULTI calibration mode a feature that is not available on the CHROMA METER alone For information about how to use the CL S1w software read the program s online help Connection of the T A11 cable increases the CHROMA METER s consumed current by about 50 When you have finished using the computer connection please disconnect the cable When ...

Page 36: ...he connection Maximum allowable separation is 100 meters 328 ft Setting Up Note that if the connection cable is in proximity to devices that generate electrical noise the noise may adversely affect measurement results and instrument functions Keep the cable away from sources of electrical noise when carrying out measurements 1 Set the power switch to OFF Hold down the receptor head release button ...

Page 37: ...using either of the following two methods For a view of the reference measurement plane see page 47 1 Attach the head to a tripod using the tripod screw hole on the back of the head 2 Mount the head onto a panel by running screws through the screw holes on the T A21 Dimensions Fixing the Head to a Panel ø4 5 hole 50 30 7 5 27 5 35 ...

Page 38: ... T A21 adapter for each head AC adapter If cabling is not long enough If the cable included with the T A21 adapter is not long enough you can use 10Base T net work cable Category 5 straight cable available at computer supply stores to make or ex tend the connection When using multiple heads the maximum allowable total cable length is 50 meters 164 ft Setting Up and Taking Measurements Note that if...

Page 39: ...he power ON the body reads in the ID numbers and sets itself up accordingly Note that the body will not check the IDs again so long as power remains on Consequently it will not recognize any changes that you make to the ID settings while operation is in progress Be sure to set the power switch to OFF before changing any of the ID settings You might find it helpful to print ID labels and attach the...

Page 40: ... through the ID numbers or to cycle downward 7 Set the power switch to ON The upper right of the screen shows the lowest used ID number Press or as necessary to cycle up or down through the used ID numbers Confirm that the display cycles through the IDs for all of the connected heads The illus tration at left shows the cycle sequence when the button is used If the display skips any of the IDs that...

Page 41: ...About Color Difference Measurement The target values must be set separately for each head Results are shown separately for each head Use of Correction Factors CFs Use or nonuse of CFs can be set on and off separately for each head About Digital Output If your are outputting to a printer through the D OUT port the CHROMA METER outputs the currently selected head You can print out data for other hea...

Page 42: ...40 ...

Page 43: ...41 Accessories ...

Page 44: ...42 Batteries Two AA batteries Strap Cap Included Accessories Case T A10 ...

Page 45: ...n extension cable 1m Data Manage ment Software Kit CL S1w Includes T A11 connection cable Connecting cable T A11 for communication to a computer Printer cable T A12 Receptor Head Includes cap AC Adapter AC A10 worldwide except North America AC Adapter AC A10N North America Hard Case CL A10 Hood CL A11 ...

Page 46: ...T A10 Cap Adapter Unit for Main Body T A20 10Base Tcomputernetworkcable obtainedseparately Multi point measurement Multi point measurement also requires theAC adapter Head body cable connection CHROMA METER Receptor Head CL 200 CHROMA METER System Configuration Diagram For Multi Point Measurement Detached Head Optional receptor head Hood CL A11 For CRT Measurement External Power Adapter Unit for R...

Page 47: ...45 ErrorMessagesandProductSpecifications ...

Page 48: ...age reappears contact the nearest Minolta authorized service fa cility ErrE Err EEPROM error Error in the data stored in the head s EEPROM Set the power switch to OFF and then back to ON If the message reappears contact the nearest Minolta authorized service fa cility Setting error Attempted to set a value that was out of range Check the valid range and make settings accordingly ErrA Communication...

Page 49: ...47 Dimension Diagram Illuminance Reference Plane Unit mm The summit of the receptor window serves as the reference plane as illustrated below Reference plane Center of receptor window Tripod socket ...

Page 50: ...ce efficiency function for photopic vision JIS Japan Industrial Standards has estab lished a rating system that classifies illuminance meters according to how closely they match this function The CL 200 CHROMA METER conforms to the general class AA classifica tion Wavelength nm Relative spectral response Spectral luminous efficiency V λ CL 200 CHROMA METER ...

Page 51: ...t the measurement plane is proportional to the cosine of the angle of incidence the response of the receptor must also be proportional to this cosine The graph below shows the cosine correction characteristics of the CL 200 CHROMA ME TER Ideal CL 200 CHROMA METER ...

Page 52: ...99 fcd Chromaticity 5 lx 0 5 fcd or above in four automati cally selected ranges lx or fcd is switchable Ev 2 1digit of value displayed 800 lx standard illuminant A measured xy 0 002 Ev 0 5 1digit 2σ Standard illuminant A measured x y 0 0005 Ev 3 1digit of value displayed xy 0 003 Ev 3 1digit of value displayed xy 0 003 2 times sec continuous RS 232C compliant 4 column LCD with automatic backlight...

Page 53: ...ll radiant energy that falls upon it As the tempera ture of this body rises the body changes color continuously starting with red then moving through yellow and finally becom ing white The body temperature at which a given color appears is referred to as that color s color temperature absolute tem perature measured in Kelvin The chart below shows how color tempera ture and the block body locus can...

Page 54: ...52 ...

Page 55: ......

Page 56: ...9222 1877 11 Printed in Japan AAMAR 1 2000 Minolta Co Ltd under the Berne Convention and Universal Copyright Convention ...

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