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X-Rite 938 Operation Manual

Spectrodensitometer
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Spectrodensitometer
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Summary of Contents for X-Rite 938

  • Page 1 X - Rite ® Spectrodensitometer Operation Manual...
  • Page 3 VORSICHT: Es besteht Betriebsgefahr bei der Verwendung von anderen Adapter als X- Rite SE30-61 (115 V) oder SE30-62 (230 V). 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 4 Industry Canada Compliance Statement This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada. The Manufacturer: X-Rite, Incorporated Der Hersteller: 3100 44th Street, S.W. El fabricante:...
  • Page 5 X-Rite Color Measurement Instrument. This instrument represents the very latest in microcontrollers, integrated circuits, fiber optics, and display technology. As a result, your X-Rite 938 is a rugged and reliable instrument whose performance and design exhibit the qualities of a finely engineered instrument, which is not surpassed.

  • Page 6: Table Of Contents

    7. Calibration ..........46 7.1 Positioning the Instrument on the X-Rite Calibration Standard .
  • Page 7 A5 - Color Check ......... . 84 © Copyright 2002 by X-Rite, Incorporated "ALL RIGHTS RESERVED" Trademark Recognition: IBM is a registered trademark of International Business Machines Corp.

  • Page 8: Proprietary Notice

    PROPRIETARY NOTICE: The information contained in this manual is derived from patent and proprietary data of X-Rite, Incorporated. This manual has been prepared solely 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 9: General Description

    The 938 calculates colorimetric, densitometric, and spectrophotometric data. The 938 displays colorimetric & densitometric data, and can output (to a printer or computer) colorimetric, densitometric, and spectral data. An optional software package (e.g., SpectroStart ™ ) can collect, sort, view and analyze L*a*b*, L*C*h°, and spectral data using an IBM compatible computer.

  • Page 10: Additional Features

    CMC difference provides a single numeric value ( ∆ E ) which describes the color difference between a sample and a standard. Densitometric Features: The 938 measures Density, Dot, Trap, Print Contrast, Hue Error/Grayness (or Hue Error/Saturation), Brightness, and λ Density. • & DEN-Paper •...

  • Page 11: User Interface

    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 938 keys are shown with brackets on both sides and in boldface. Ex.,...

  • Page 12: What To Do First

    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 7 - Calibration. Setup your instrument.

  • Page 13: Getting Started

    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 14 PACKAGING...

  • Page 15: Shoe Lock

    1.2 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 Locking Shoe 1.

  • Page 16: Battery Charging

    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 17: Positioning Techniques

    2. Positioning Techniques INSTRUMENT The variety of items that the 938 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 18: Target Window

    When measuring, center target window opening over spot to read using the cross hairs for alignment purposes. The 938 is shipped from the factory with 4mm optics installed. Although the illuminating spot produced by the instrument is 4mm, the actual target window opening is 6mm. Therefore, proper positioning under the target window opening is important when measuring 4mm size patches.

  • Page 19: Colorimetric Operation

    3. Colorimetric Operation 3.1 Key Descriptions FUNCTION ILLUM [FUNCTION]/[ ] • Selects the function that will be used for measurement. Each momentary depression will cause the display to page through XYZ, Yxy, L*a*b* , L*u*v* , L*C*h ° , Whiteness, & Yellowness. •...

  • Page 20: Function Selection

    3.2 Function Selection Each momentary depression of will sequentially page [FUNCTION] through the available functions: CIE XYZ (or RGB), Yxy, L*a*b* (or Lab Hunter), L*u*v* , L*C*h ° (or L*C*h °) , Whiteness, & Yellowness. Functions can be turned on, off, or changed in Colorimetric Operation Parameters, Section 8.2.
  • Page 21 > The illuminant/observer will not be displayed in the difference mode during operation of that function. It is only displayed during function selection. > ∆ E will be displayed in place of ∆ L*a*b*, ∆ L*u*v*, and ∆ L*C*H* during difference operation.

  • Page 22: Illuminant/Observer Selection

    3.3 Illuminant/Observer Selection There are eight different illuminants and two observers to choose from. SELECT ILLUMINANT 1) To enable illuminant selection: Hold down until [ILLUM] X Y Z X 4 . 1 2 "SELECT ILLUMINANT" Y 2 . 8 7 Z 2 .
  • Page 23 4) To exit press X Y Z 4 . 0 8 [FUNCTION] 2 . 8 1 2 . 3 7 When "Function Key" is pressed, the instrument will UPDATING REFS # 1-24 CLEAR REFS automatically convert the stored spectral references (if any) to tristimulus for the different illum/obs selected.

  • Page 24: Absolute Measurement

    3.4 Absolute Measurements The 938 can perform absolute measurement in XYZ (RGB), Yxy, L*a*b*, L*u*v*, L*C*h°, Whiteness, & Yellowness. > Helpful Hint: If you are going to measure something like a textile, you will receive better results if you use the averaging function (see Section 8.1). Also, while measuring a textile, take several measurements in a circular format.

  • Page 25: Difference Measurement

    3.5 Difference Measurement The 938 can measure the difference between a sample color and a reference. In order to measure these differences the reference must first be entered into memory. There are 24 different locations to store references. The reference can be entered numerically using the key pad, or by measuring the reference color.

  • Page 26: Entry Of Reference Values

    and the ∆ sign will appear To activate the Difference mode, press [DIF] in the display. The ∆Functions will have a "+ " sign in front of them for positive values instead of being implied as in the absolute function. ∆...
  • Page 27 CURSOR REFERENCE SPACE 4) Select the reference location. REF 03 X 6 . 1 6 If the cursor is not blinking next Z 2 . 6 9 Y 4 . 4 5 to the reference location, press FUNCTION ILLUM until it does. [DIF] and press [ ] Hold down...
  • Page 28 Entry of Reference Values... By Numeric Entry > Whiteness & Yellowness reference values can not be entered via the keyboard. X Y Z X + 4 . 1 2 1) Select desired Illum/Obs (see Z + 2 . 4 1 2 .
  • Page 29 5) The cursor will blink over the CURSOR active value that can be edited. REF 03 X 4 . 1 2 Enter the numbers for each Z 2 . 4 1 Y 2 . 8 7 value. •The key advances the [DIF] FUNCTION ILLUM...

  • Page 30: Taking A Difference Measurement

    3.5.2 Taking A Difference Measurement ∆ > If the is not displayed, press [DIF] to activate difference mode. > The reference color must first be entered into memory, refer to Section 3.5.1. > If reference selection is not set to auto, select the correct reference location before following the procedure below (refer to Section 3.5.1).

  • Page 31: Cmc Difference Operation

    3.6 CMC Difference Operation CMC is an ellipsoidal tolerancing method which attempts to correlate small measured color differences with visual assessment. CMC provides a single numeric value (∆E ) which describes the color difference between a sample and a standard. This allows the use of a single tolerance value for comparing the acceptability of a color match.
  • Page 32 CMC Difference Operation...continued 3) Press [FUNCTION] and [ILLUM] at the same time to 2 . 0 0 EXIT exit to the main menu. c 1 . 0 0 cf = 1 . 0 0 "REFERENCES UPDATED" FUNCTION ILLUM is momentarily displayed and the procedure is finalized.

  • Page 33: Densitometric Operation

    4. Densitometric Operation 4.1 Key Description FUNCTION ILLUM [FUNCTION]/[ • Selects the function that will be used for measurement. Each momentary depression will cause the display to page through: Density, Dot, Trap, Print Contrast, Hue Error/Grayness (or λ λ λ Saturation), Brightness, and Den ( Dot or...

  • Page 34: Function Selection

    4.2 Function Selection Each momentary depression of in densitometric mode [FUNCTION] will sequentially page through the available function: DEN (or DEN-P), DOT, TRAP, PC (or PC-P), H/G (or H/S) or H/G-P (or H/S-P), BRIGHT, and λDEN (or λDOT, or λREFL). Functions can be turned on, off, or changed in Densitometric Operation Parameters, Section 8.3.

  • Page 35: Response Selection

    It is similar to Status T response but has more sensitivity to denser yellow inks. • A x , T x , E x - closely match the X-Rite 400 series responses. Applications: - For DIN wide band, Response "E" would be selected.
  • Page 36 R E S P O N S E Ex 2) The active response is displayed. R E S P O N S E Tx Press [ ] to select a different R E S P O N S E G response.

  • Page 37: Density Operation

    4.4 Density Operation The 938 can measure density with or without paper subtracted from the measurement (as selected in modes, refer to Section 8.3 for selection). To take a density measurement: D E N c 0 . 5 0 1 D 1) Select desired response (if y 0 .

  • Page 38: Dot Operation

    The instrument will display last solid density and dot measurement for each color (v, c, m, & y). In auto color mode, the 938 will automatically display and update the selected solid or dot measurement. In manual color mode, the display will remain at the selected color until changed.
  • Page 39 D O T T and lower unit to target window. 6) Detection of solids and tints is automatic. After a measurement (while the 938 is still held down), momentarily pressing the [ ] key will allow you to override the auto mode and select paper, solid, or tint.
  • Page 40 7) Momentarily pressing the c 0 . 0 4 0 P D O T ] key display will show C O L O R P A P E R the tint, solid, and paper value c 1 . 0 7 9 s D O T of the selected color.

  • Page 41: Trap Operation

    4.6 Trap Operation Trap is electronically calculated after a measurement of the overprint, 2nd ink printed, and 1st ink printed. The 938 contains three methods for calculating trap: x100 1) Preucil (GATF) formula -Dop 1 - 10 x100 2) Brunner formula...
  • Page 42 Trap Operation...continued 4) Center target window over T R A P c 1 . 0 4 1 D overprint patch to be measured, O V E R P R I N T and lower unit to target R E A D I N G T R A P T window.
  • Page 43 9) By momentarily pressing the ] key the display will 8 1 . 5 T T R A P R E A D O V E R P R I N T toggle between the trap value and selected paper value. >...

  • Page 44: Print Contrast Operation

    Print contrast can be measured with or without paper subtracted from the measurement. In auto color mode, the 938 will automatically display and update the selected solid or dot measurement. In manual color mode, the display will remain at the selected color until changed.
  • Page 45 7) Detection of solids and tints is C O L O R T I N T automatic. After a measurement FUNCTION ILLUM (while the 938 is still held down), momentarily pressing the [ ] key will allow you Press to override the auto mode and select paper, solid, or tint.

  • Page 46: Hue Error/Grayness (Or Saturation) Operation

    4.8 Hue Error/Grayness (Saturation) Operation The 938 can measure hue error/grayness (or saturation), with or without paper subtracted from the measurement. Refer to Sec. 8.3 for selection procedure. Hue Error, Grayness, and Saturation are calculated as follows: x100 %G =...
  • Page 47 H / G C T O M 4) Lower unit to target window 2 2 . 5 8 . 5 and hold compressed. "Reading H/G T" (i.e., the R E A D I N G H / G T selected response) will momentarily be displayed and then the data.

  • Page 48: Brightness Operation

    4.9 Brightness Operation The 938 has the ability to measure the brightness of paper. The spectral weight table is derived from 1987 TAPPI Spec - T 452 OM-87. To take a brightness measurement: 1) Press to select [FUNCTION] B R I G H T BRIGHT 8 0 .

  • Page 49: Spectral Operation

    4.10 Spectral Operation The 938 has a special feature that allows spectral data to be displayed as a density, dot, or reflectance measurement. Values for the spectral measurements are in 20nm increments from 400 to 700 nanometers. Only one of the three spectral measurement features can be used at a time. To select between density, dot, and reflectance, refer to Section 8.3.
  • Page 50 4.10.2 Spectral Dot Operation The spectral dot feature is used for measuring dot values of nonprocess inks. To take a spectral dot measurement: > λDOT must be selected in spectral operation (see Sec. 8.3). 1) Press to select [FUNCTION] D O T 0 .
  • Page 51 4) Center target window over tint D O T 7 0 . 8 % that corresponds to the 6 2 0 n m T I N T previous solid measurement, R E A D I N G D O T and lower unit to target window.
  • Page 52 4.10.3 Spectral Reflectance Operation The 938 allows you to measure a sample and display it’s relative reflectance. To take a spectral reflectance measurement: > λREFL must be selected in spectral operation (see Sec. 8.3). 1) Press to select [FUNCTION] R E F L 7 .

  • Page 53: Measurement Averaging Procedure

    5. Measurement Averaging Procedure When averaging is activated in setup, averaging operation will occur on all the functions that are turned on in modes. Refer to Section 8.1 to activate averaging procedure. There are two averaging methods that are used: •...
  • Page 54 X Y Z X 63.91 3) Center the target window over Y 65.04 Z 23.02 second area on the sample to AVERAGE measure. Lower unit to target CALCULATED window and hold compressed. READING XYZ "READING XYZ C 1 OF 2" "2 2 OF 2 will momentarily be...

  • Page 55: Store Data Operation

    6. Store Data Operation The data storage feature allows the unit to store measurement data for up to 500 readings. (Refer to Sec. 8.5 to activate.) > The store data feature can not be used when measuring Trap. There are four basic operations that can be utilized in the store data function.
  • Page 56 XYZ C X 3.45 Y 3.52 Z 4.29 3) Measure second sample. DATA STORED 2 OF 500 "READING XYZ C " momentarily displayed, then the XYZ C X 3.45 measurement. Y 3.52 Z 4.29 Upon release of the read head, READING XYZ "DATA STORED 2 OF 500"...

  • Page 57: Clear All Data

    DELETE LAST MEASUREMENT DELETE LAST ? 6) Press to delete the last [DIF] measurement made (this step LAST DELETED can be repeated to delete several of the last measurements). DELETE LAST ? is selected, press "NO" and advance to Step 7. [FUNCTION] Press Number of Measurements...

  • Page 58: Calibration

    7. Calibration The 938 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 59: Bottom View

    7.1 Positioning the 938 Onto the Standard You must set the 938 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 60 Shown below is an IMPROPER METHOD of measuring the standard. BOTTOM VIEW INCORRECT!
  • Page 61 If you lose your envelope, you can obtain the calibration values from the back page of this manual, or, by looking at them in the calibration procedure. Otherwise, you can contact X-Rite with the serial number of your standard and get the values.

  • Page 62: Calibrating To The White Standard

    [FUNCTION] Y 2 . 8 7 Z 2 . 4 1 at the same time. [ILLUM] FUNCTION ILLUM PRESS AT SAME TIME Ver XXXX X-Rite 2) Select "YES" , press [DIF]. Copyright 1990 The copyright and software CALIBRATE ? version are momentarily displayed.
  • Page 63 4) Measure the WHITE patch on CALIBRATION the standard. You must hold UPDATED the unit depressed until all five CAL READING readings have been completed. 5 OF 5 > You must set the unit on the CAL READING standard so that the maximum 4 OF 5 amount of the bottom rubber pad of the shoe resides on the standard...
  • Page 64 READ CAL WHITE 5a) Select , press "CHANGE" [DIF]. EXIT CHANGE FUNCTION ILLUM Press NEW CAL VALUES? 5b) Select , press "NO" [FUNCTION] FUNCTION ILLUM Press 5c) Press to select [FUNCTION] APERTURE = 8.0mm if the aperture size is "NEXT" TOGGLE NEXT correct (go to step 5d).
  • Page 65 6b) Enter the value for 390nm. 390nm VALUE NEXT 53.22 > The [DIF] key advances the cursor to FUNCTION ILLUM the next value to be edited. > Hold [DIF] depressed then press to decrease value or increase value. INCREASE DECREASE 6c) After entering value press 400nm VALUE...

  • Page 66: Setting System Parameters

    8. Setting System Parameters 8.1 Averaging The averaging feature allows the unit to make several measurements from the same and/or different locations on a sample. This will allow you to have a better overall average of a sample color. The averaging feature has two functions: •...

  • Page 67: Set Averaging

    3) Select , press "YES" [DIF] SET AVERAGING ? FUNCTION ILLUM Press 4) Select the amount (1-99) of sample measurements required. SAMPLES AVERAGED NEXT • Hold down and press [DIF] [ ] to decrease the FUNCTION ILLUM sample measurement number or press [ ] to increase the sample measure number.

  • Page 68: Colorimetric Operation Parameters

    8.2 Colorimetric Operation Parameters Colorimetric operation setup allows you to select various options, and individually turn On or Off certain functions. When a function is turned off it will not be displayed during operation. 1) Press both [FUNCTION] X Y Z X 4 .
  • Page 69 SOFT TONE 4) Select SOFT TONE, LOUD TOGGLE NEXT TONE, TONE OFF. SOFT LOUD Press XYZ ON 5) Select XYZ ON, X%Y%Z% TOGGLE NEXT XYZ ON (RBG) ON, OFF. X%Y%Z% Press (RGB) ON XYZ OFF Yxy ON 6) Select Yxy ON OFF.

  • Page 70: Densitometric Operation Parameters

    8.3 Densitometric Operation Parameters Densitometric operation setup allows you to change various options, and individually turn On or Off certain functions. When a function is turned off it will not be displayed during operation. 1) Press both [FUNCTION] X Y Z X 4 .
  • Page 71 DEN ON 5) Select (absolute), TOGGLE NEXT DEN ON , or DEN-P DEN-P ON Press DEN OFF DOT ON 6) Select DOT ON OFF. TOGGLE NEXT Press 7) Select new factor (if "n" Yule/Nielson required). Change "n" factor NEXT 1.000 by pressing and holding the ] key, and pressing the [ ] key to decrease value, or...

  • Page 72: Rs232 I/O Parameters

    I/O parameters. • "RCI ON/OFF" (Remote Control Interface) - enables or disables the ability to externally control the 938 via the I/O port. • "BAUD" - determines the input/output rate (characters per second) of the I/O port. Available outputs are: 300, 600, 1200, 2400, 4800, and 9600.
  • Page 73 SETUP I/O ? 3) Select , press [DIF] "YES" FUNCTION ILLUM Press > The basic procedure for the following steps is to press [TOGGLE] to set the I/O parameter. Press [NEXT] to advance to the next step. RCI ON 4) Select TOGGLE RCI ON OFF.

  • Page 74: Format Output Parameters

    8.5 Format Output Parameters This procedure allows you set the output format of the RS232 port. Refer to Section 10 for sample print outs. Listed below are the available options. • AUTO PRINTOUT/STORE DATA/PRINTOUT OFF - determines if data will be transmitted after each measurement, stored until transmitted, or not allow data transfer.
  • Page 75 CALIBRATE ? 2) Select press five [FUNCTION] "NO", times. FUNCTION ILLUM Press Five Times FORMAT OUTPUT ? 3) Select , press [DIF] "YES" FUNCTION ILLUM Press > The basic procedure for the following steps is to press [TOGGLE] to set the format.
  • Page 76 PRINT HEADER OFF 8) Select PRINT HEADER OFF TOGGLE NEXT Press PRINT REF OFF 9) Select PRINT REF OFF NEXT TOGGLE Press DEC. POINT ON NEXT TOGGLE 10) Select DEC. POINT ON OFF. Press BACK TO STEP 3 > Exit via [NEXT] OR press [FUNCTION] &...

  • Page 77: Display Messages

    9. Display Messages The most likely reasons for error messages to display are described below. If an error message is consistently displayed, contact X-Rite or an Authorized Service Center. Power-Up Message "MEMORY LOST" is displayed when the instrument determines that the data in the (battery backed up) RAM has been corrupted, if the internal lithium battery on the P.C.B.

  • Page 78: Calibration Messages

    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. "INVALID ENTRY" is displayed when the numbers entered for the white values are inappropriate.
  • Page 79 [FUNCTION] then ; or waiting until unit powers down. [ILLUM] [FUNCTION] "X-Rite VER# # # # - COPYRIGHT 1990" is displayed when first activating calibration. # # # # represents the datecode of the software.

  • Page 80: Printing Data

    10. Printing Data The RS232 parameters for the 938 serial interface are configured in Section 8.4. The variables are: •Remote Control Interface (On/Off) •Baud Rate (300, 600, 1200, 2400, 4800, or 9600) •Carriage Return (With or Without Line Feed) •Handshake (Off, Pin 5 CTS, Pin 5 Busy, or XON/XOFF En-...

  • Page 81: Print Example

    Print Example 1: • Printer ON Reference Data • λDen Print MAX Colorimetric Data • All Print ON • Header ON Header • References ON Densitometric Data • Decimal Point ON > If Header, d(WHT) d(XYZ) References, or We +.55 -.09 Decimal Point are -.10...
  • Page 82 Print Example 2: • Computer ON d(XYZ) +.03 +.02 +.18 • λDen Print MAX REF 01 • All Print ON 23.76 Y 29.74 81.25 • Header ON d(Yxy) • References ON +.02 x -.0001 y -.0002 REF 01 • Decimal Point ON 29.74 x -.0001 .2207...
  • Page 83 Print Example 4: Print Example 5: • Spectral ON • Spectral ON • All Print ON • All Print ON • Header ON • Header OFF • References ON • References OFF • Decimal Point ON • Decimal Point ON >...

  • Page 84: Changing Apertures

    11. Changing Apertures X-Rite has three different aperture kits available for the 938, and they are listed below. • 8mm/4mm Aperture Kit P/N 968-100-08 • 8mm UV Excluded Aperture Attachment P/N 968-61-08E • 20mm Aperture Kit P/N 968-100-20 Each aperture kit includes the aperture, sensor nose, and a specially designed aperture wrench.
  • Page 85 3) Unscrew the existing aperture with the aperture wrench [6]. Note: The aperture wrench tool has two sides, one side fits the 8mm aperture and the other fits the 20mm aperture. The aperture wrench has two pins that fit into the holes in the aperture.

  • Page 86: Maintenance

    12. Maintenance 12.1. Troubleshooting The X-Rite 938 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 87: Optics Cleaning

    12.2. 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 88: Battery Replacement

    12.3. Battery Replacement 1. Set the 938 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 89: Target Window Replacement

    12.4 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 90: Lamp Replacement

    12.5. 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 91: Appendix

    A1 Specifications Densitometric Measuring Functions: Absolute Minus Paper Notes TRAP Preucil, Brunner, or News H/G or H/S H/G or H/S BRIGHT per TAPPI T452 om-87 λDEN, λDOT λDEN 20nm Increments or λREFL Colorimetric Measuring Functions: Absolute Difference Indices: ∆(XYZ) CIE XYZ ∆(X%Y%Z%) X%Y%Z% ∆(Yxy)
  • Page 92 Reference Guide AC Adaptor Carrying Case X-Rite reference standards are traceable to the National Institute of Standards and Technology through Munsell Color Science Laboratory RIT. This product covered by U.S. Patent 4,591,978 and other patents pending. Specifications and design subject to change without notice.

  • Page 93: A2 Optional Accessories

    A2 Optional Accessories Part Number • X-RiteColor® Master ..... . .1242 • 4/8mm Aperture Kit ....... 968-100-08 •...

  • Page 94: A3 Factory Presets

    A3 Factory Presets Shown below are the factory presets for the Averaging, Colorimetric & Densitometric Operation, I/O, and Format parameters. AVERAGING PARAMETERS Average - 01 Sub Average COLORIMETRIC OPERATION PARAMETERS Tone - SOFT - OFF - OFF L*a*b* - ON (CIE) L*u*v* - OFF L*C*h°...

  • Page 95: A4 - Spectrophotometer Stand

    A4 Spectrophotometer Stand X-Rite has an optional mounting fixture available (P/N 968-80). The fixture can hold items that are a maximum of four inches wide, or two inches to the center of the object. ITEM TO BE MEASURED THE UNIT QUICKLY...

  • Page 96: A5 Color Check

    A5 Color Check The color check procedure will help you track instrument color performance to assure measurement accuracy. Initially, the three patches on the standard should be measured once a day for a period of 10 days to determine the reference values.
  • Page 97 • Consistent L*, a*, or b* differences exceeding .30 (or obvious trends away from the reference data) may require the unit to be serviced. Contact X-Rite or authorized service center if this is the case. • Always verify color performance with the same aperture size, illum/obs,...
  • Page 98 COLOR CHECK RECORD Date: Illuminant: Observer: Temperature: Aperture Size: Model-S/N: Reference White Blue Brown Values Date...
  • Page 100 No.1 Baba Bldg. • 3-19-18 Shibaura, Minato-ku, Tokyo • 108-0023 Japan Tel: +81-3-5439-5971 • Fax: +81-3-5439-5972 X-Rite Asia Pacific Ltd. - Singapore Representative Office 14 Science Park Drive • #02-04 The Maxwell Singapore Science Park • Singapore 118226 Tel: + 65 7788-773 • Fax: + 65 7788-645...

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