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X-Rite CDM Operation Manual

Color difference meter
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X-Rite
CDM
Color Difference Meter
Operation Manual

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Summary of Contents for X-Rite CDM

  • Page 1 ® X-Rite Color Difference Meter Operation Manual...
  • Page 2 VORSICHT: Es besteht Betriebsgefahr bei der Verwendung von einem Adapter außer X-Rite SE30-61 (115 U) oder SE30-62 (230 U). AVISO: No use otro adaptador C.A. que no sea la pieza X-Rite SE30-61 (115V) o SE30-62 (230V), por el riesgo de mal funcionamiento del equipo.
  • Page 3 WARNING: This instrument is not for use in explosive environment. WARNUNG: Das Gerät soll in einer explosiven Umgebung NICHT verwendet werden. ADVERTENCIA - NO use este aparato en los ambientes explosivos. ATTENTION: Cet instrument NE DOIT PAS être utilisé dans un environnement explosif.
  • Page 4 X-Rite Color Difference Meter (CDM). This instrument represents the very latest in microcontrollers, integrated circuits, fiber optics, and display technology. As a result, your X-Rite CDM is a rugged and reliable instrument whose performance and design exhibit the qualities of a finely engineered instrument, which is not surpassed.
  • Page 5 5. Calibration ..........24 5.1 Positioning the unit on the X-Rite Standard ....24 5.2 Calibrating to the White Standard .
  • Page 6 Proprietary Notice The information contained in this manual is derived from patent and proprietary data of X-Rite, Incorporated. This manual has been prepared expressly for the purpose of assisting in the use and general maintenance of this instrument. Publication of this information does not imply any rights to reproduce or use this manual for purposes other than installing, operating, or maintaining this instrument.
  • Page 7 General Description The X-Rite CDM is a tristimulus reflection colorimeter, with spectral response closely matching the CIE standard observer under illuminant D and for the 10° observer. The instrument operates as a color difference meter. The CDM stores a single reference against which all subsequent measurements are compared.
  • Page 8 This section will familiarize you with the typographical conventions, display functions, and general terms used in this manual. • In the text portion of this manual the CDM keys are shown with brackets on both sides and in boldface. Ex.,...
  • Page 9 What To Do First! See how to unlock the shoe and charge the batteries...read Section 1 - Getting Started. See how the positioning of the instrument during measurement affects the reading...read Section 2 - Positioning Techniques. Calibrate your instrument...read Section 5 - Calibration. Learn about the options in the operation setup and how to configure them...read Section 3 - Operation Setup.
  • Page 10 If reshipment is necessary, the instrument should be packaged in the original carton. If the original carton is not available, a new one can be obtained from X-Rite Inc. Refer to the packaging drawing on the following page (items 1 and 2).
  • Page 11 PACKAGING...
  • Page 12 Shoe Lock The shoe can be locked next to the housing for ease of storage. Unlocking Shoe 1. Hold shoe against unit. 2. Slide black lock button on bottom of unit towards the back until it stops, then slowly release shoe [1].
  • Page 13 Before using make sure the voltage indicated on the AC adaptor complies with the AC line voltage in your area. If not contact your X-Rite dealer. > The unit should be fully charged in 14 hours. Note: If your unit has not been used for several weeks recharge for approximately 24 hours.
  • Page 14 Key Description FUNCTION SETUP [FUNCTION] • Used to select "Simple Compare", "Pass/Fail", "555 Shade Tag", & "555 & Pass/Fail." • Selects calibration when pressed together with key. [SETUP] • Used to decrease numeric values when defining limits in Operation Setup. •...
  • Page 15 Positioning Techniques The variety of items the CDM can measure is almost endless. However, in order to obtain accurate and repeatable measurements, the bottom of the shoe must be: • Parallel with the surface to be measured if the surface is flat.
  • Page 16 Example 2 - Measure a Coffee Cup Coffee Cup CORRECT Example 3 - Measure a Small Knob Knob CORRECT...
  • Page 17 Operation Setup Setup Definition The CDM will store up to 25 individual "setups" with user selected options. This allows the measurement of a wide range of samples with different tolerancing needs. Simply call up the proper setup number and measuring a reference. The setup operation allows you to: select the setup number;...
  • Page 18 Setup Definition...continued A single CMC DE tolerance value describes, in L*a*b* color space, an ellipsoid around the standard color where the semi-axes correspond to the Lightness, Chroma, and Hue of the standard. This ellipsoid represents the "volume of acceptability" for that given color standard with a DE less than or equal to the given tolerance.
  • Page 19 Setup Definition...continued Pass/Fail Limits - Are individual limits set on each attribute of L*a*b*, L*C*h°, and CMC. Or, a single limit may be placed on the delta E value of the selected color space. The limits can be set from .01 to 9.99. The limit for each attribute can also be turned "Off"...
  • Page 20 Setup Procedure To set desired options: 1) Repeatedly press to select [SETUP] the setup # requiring definition. FUNCTION SETUP > There is approx. 3 seconds allowed between depressions of the "SETUP" key before the display returns to normal operation. Press Repeatedly 2) Press to access the setup SETUP #1...
  • Page 21 and [SETUP] keys while the cursor is under the "L*" attribute. Setup Procedure...continued • When the cursor is under the last attribute (far right), press LIMIT ADJUST [→] one more time to advance save abort to the next menu. FUNCTION SETUP •...
  • Page 22 Setup Procedure...continued • When the cursor is under the last attribute (far right), press SHADE RANGE [→] one more time to advance save abort to the next menu. FUNCTION SETUP • Press to save [FUNCTION] Shade Range and advance to next option.
  • Page 23 Operation Reference Measurement The instrument will store one reference at a time. Each time a new setup # is selected from the database, a new reference must be measured. > A new reference must be measured whenever the instrument is calibrated. To measure a reference: READ REFERENCE abort...
  • Page 24 4.2 Simple Compare & Pass/Fail Operation Simple compare will display the sample differences from the reference. Pass/fail will display the differences and indicate a pass fail signal dependent on the tolerances assigned in setup. There is one of three display options that can be setup in operation selection (Sec.
  • Page 25 Simple Compare & Pass/Fail Operation...continued Deltas = Words (Color Direction Indication) The simple compare option will display the delta E value and color direction between reference and sample. The color information that is displayed depends on what color space is selected in setup (see example 3 below).
  • Page 26 Simple Compare & Pass/Fail Operation...continued Measurement sequence is as follows: 1) Measure a reference (see Section 4.1). 2) Repeatedly press to select [SETUP] desired setup number. FUNCTION SETUP Press Repeatedly SETUP #1 3) Press to load into the [FUNCTION] load define unit the selected setup # data.
  • Page 27 Simple Compare & Pass/Fail Operation...continued Simple Compare (PASSFAIL) (SIMPLE COMPARE) • Delta E value is displayed E .09 (refer to Step 7a). Pass/Fail To Step 7a • If "SAMPLE PASSED" displayed (3 short beeps), E .09 sample is ok, advance to Step SAMPLE PASSED •...
  • Page 28 555 Shade Tag and Pass/Fail Operation 555 Shade tagging allows a means of expressing usable information on different variation of shaded samples. These samples are sorted and placed into selected shade groups. This allows the same color fabric, ceramics, etc., from different manufacture runs to be sorted in shade groups and used together in final use.
  • Page 29 Passed Samples Failed Samples Shade Tag Shade Tag 565 L*a*b* L* - .24 1 L*a*b* L* - 10.18 b* - 3.89 b* - .18 a* - 6.56 a* + .74 L*a*b* L*a*b* Shade Tag Shade Tag L*C*h L* +43.61 554 L*C*h L* - .24 C* + .64 H* +15.15...
  • Page 30 5 & Pass/Fail measurement procedure shown below will guide you through the entire measurement sequence. The example shown is setup with the deltas off and in L*a*b* color space. Measurement sequence is as follows: 1) Measure a reference (see Section 4.1). 2) Repeatedly press to select [SETUP]...
  • Page 31 6) Lower unit to target window and READING hold compressed. "READING SAMPLE is displayed. Release unit SAMPLE" after "READING COMPLETE" displayed. READING COMPLETE 555 Shade Tag • Shade tag number and color (555 SHADE TAG) space is displayed (refer to Step 7a).
  • Page 32 Sample Failed Only! will display "SAMPLE FAILED" when the sample measured exceeds the predefined pass/fail limit. SAMPLE FAILED ! • Press continue to continue. [REF] FUNCTION SETUP Examples: • Shade Tag 257: "2" represents the "L*" attribute, "5" represents the "a*" attribute, 257 L*a*b* and "7"...
  • Page 33 Calibration The CDM should be calibrated to the X-Rite standard the first thing each day and every four hours of operation thereafter. However, a "NEED " message will appear in the display if: CALIBRATION •The calibration procedure has not been performed for 24 hours.
  • Page 34 Positioning the Unit on the Standard You must set the CDM on the white standard so that the maximum amount of the bottom rubber pad of the shoe resides on the standard, and the target is centered on the circle. If you do not, the unit may rock slightly and cause an erroneous reading of the standard.
  • Page 35 Shown below is an IMPROPER METHOD of measuring the standard. BOTTOM VIEW INCORRECT!
  • Page 36 Press Press • Or, press Go To [FUNCTION] Go To Step 3 Step 4 bypass calibration and activate zero reflectance measurement. Go to Step 4 for this procedure. "READ CAL WHITE" X-Rite VerXXXX displayed. 1991 COPYRIGHT READ CAL WHITE abort...
  • Page 37 Calibrating to the White Standard...continued 3b) Measure the WHITE patch on the standard. You must hold the unit depressed until all five readings have been completed. > Carefully position the unit on the calibration plaque WHITE (refer to Section 5.1). 3c)"...
  • Page 38 Steps 4a & 4b are only necessary if is displayed "READ ZERO REFL" after a cal white reading was taken, or if you want to manually activate Zero Reflectance Measurement. Zero Reflectance is defined as, "measuring air with no ambient light." This can be accomplished by holding the unit depressed (take a reading with no return reflectance) in a dark room.
  • Page 39 Setting System Options Language Selection The language feature allows you to change the display format to one of several different languages. To select desired language: SAMPLE PASSED 1) Press both [FUNCTION] [SETUP] at the same time. FUNCTION SETUP Press Press 2) Select , press the "NO"...
  • Page 40 Operation Selection The operation selection allows you to select the method in which a measurement will display, and the option of locking out the setup # data. Below is a description of these options. DELTAS The measurement data can be displayed three different ways. The available options are: Deltas = Off, Deltas = Numbers, and Deltas = Words.
  • Page 41 Operation Selection...continued 3) Select , press the key to " "Yes [REF] SET OPERATION ? enter operation selection menu. FUNCTION SETUP Press DELTAS = OFF 4) Repeatedly press the key to page [REF] next other through , and "OFF", "WORDS" "NUMBERS."...
  • Page 42 I/O Options Selection Your instrument comes equipped with a serial port that allows data to be transmitted to an external device. Listed below are the available options. • Label Length - Label Length setting determines the amount of line spaces that are transmitted after a measurement. •...
  • Page 43 I/O Option Selection...continued 4) Repeatedly press the key to page [REF] LABEL LENGTH = 4 through "LABEL LENGTH #’s" (4 - 15) next Press the key to advance [FUNCTION] FUNCTION SETUP to next option. Press 4 through 15 Next Option 5) Press the key to toggle between [REF]...
  • Page 44 Maintenance 7.1. Troubleshooting The X-Rite CDM is covered by a one year limited warranty (excluding ni-cad batteries) and should be referred to the factory or authorized service center for repair within the warranty period. Attempts to make repairs within this time frame may void the warranty.
  • Page 45 7.2. Optics Cleaning The target window and optics should be cleaned once a week in normal environments; and more often in dirty or dusty environments. Target Window 1. Remove dust and lint from target window by wiping it with a clean, lint free cloth, slightly moistened with water.
  • Page 46 7.3. Battery Replacement 1. Set the CDM on it’s side and lock shoe in place. The shoe must be locked. 2. Slide battery access door [1] toward bottom of unit and remove. 3. Disconnect plug [4] and pull battery pack [2] out of unit.
  • Page 47 7.4. Target Window Replacement 1. Remove old target window [2] by pushing downward from top of shoe [1]. 2. Place the instrument on end and align the target window so that the word "front" runs parallel with the top edge of the shoe [1]. 3.
  • Page 48 Lamp Replacement Due to the circuit complexity, alignment procedures, and test equipment required - The read lamp should only be replaced by X-Rite or an authorized X-Rite Service Center. The lamp is monitored for intensity and failure warnings will be displayed if a problem occurs.
  • Page 49 "CAL ERROR # # # - MOTION DETECTED" Calibration requires that the instrument remain motionless during the five measurements of the white spot. If the error persists and is not due to movement, the number that is displayed should be reported to X-Rite or an authorized service center.
  • Page 50 [SETUP] then ; or waiting until unit powers down. [REF] [SETUP] "X-Rite VER# # # # - COPYRIGHT 1991" is displayed when first activating calibration. # # # # represents the datecode of the software.
  • Page 51 Calibration Standard Operation Manual AC Adaptor Carrying Case X-Rite standards are traceable to the National Institute of Standards and Technology. This product covered by U.S. Patent #4,080,075, #4,591,978, and other patents pending. Specifications and design subject to change without notice.
  • Page 52 Spectrophotometer Stand X-Rite has an optional mounting fixture available (P/N 968-80). The fixture can hold ITEM TO BE items that are a MEASURED maximum of four inches wide, or two inches to the center of the object. THE UNIT QUICKLY...
  • Page 53 X-Rite, Incorporated 3100 44th Street, S.W. Grandville, MI. 49418 • U.S.A. Tel: (616) 534-7663 • Customer Support Fax: 616-534-0723 Instrumenl Services Fax: 616-534-7722 • http://www.x-rite.com X-Rite GmbH Charlottenstraße 61 51149 Köln • Deutschland Tel: (49) 2203-91450 • Fax: (49) 2203-914519 X-Rite Asia Pacific Ltd.