X-Rite 948 User Manual

X-Rite® 948/968Color Measurement InstrumentsOperation Manual

General Description . . . continuedTwenty four different reference values (Ref 01 - Ref 24) can be entered into the948 and 968 manually (numerically)

User InterfaceThis section will familiarize you with the typographical conventions, displayfunctions, and general terms used in this manual.• In the t

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 durin

1. Getting Started1.1 Packaging Check List After removing the instrument from the shipping carton, inspect fo

PACKAGING 2

1.2 Shoe LockThe shoe can be locked next to the housing for ease of storage. Unlocking Shoe1. Hold shoe [1] against unit.2.

1.3 Battery Charging > THE UNIT SHOULD BE CHARGED BEFORE USE. The unit can be operated while thebatteries are being charged.

2. Positioning TechniquesThe variety of items that the 948 and 968 can measure is almost endless.However, in order to obtain accurate and

Example 2 - Measuring a Coffee CupExample 3 - Measuring a SmallCORRECTCORRECTCoffee CupJigKnobJig6

3. Operation3.1 Key Descriptions[FUNCTION]/[t]• Selects the function that will be used for measurement. Eac

CAUTION: Operational hazard exists if AC adaptor other than X-Rite SE30-61(115V) or SE30-62 (230V) is used.VORSICHT: Es besteht Betriebsgefahr bei der

3.2 Function SelectionEach momentary depression of [FUNCTION] will sequentially page through theavailable functions: CIE XYZ (or R

> The illuminant/observer will not be displayed in the difference mode during operation ofthat function. It is only displayed during function selec

3.3 Illuminant/Observer SelectionThere are eight different illuminants and two observers to choose from. 1) To enable illuminantselection

Illuminant/Observer Selection...continued3) To exit press [FUNCTION].When "Function Key" is pressed,the instrument will automaticallyconvert

3.4 Absolute MeasurementsThe 948 and 968 can perform absolute measurement in XYZ (RGB), Yxy,L*a*b*, L*u*v*, L*C*h°, Whiteness, & Y

3.5 Difference MeasurementThe 948 and 968 can measure the difference between a sample color and areference. In order to measure these

Difference Measurement...continued> When entering references with any illuminant other than C2, Yellowness and Whiteness(per ASTM E313) are not cal

Entry of Reference values - By measurement . . . continued4) Select the reference location.If the cursor is not blinkingnext to the reference location

Entry of Reference Values... By Numeric Entry > Whiteness & Yellowness reference values can not be entered via the keyboard.1) Select des

Entry of Reference values - By Numeric Entry . . . continued5) The cursor will blink over theactive value that can beedited. Enter the numbers foreac

WARNING: This instrument is not for use in explosive environment.WARNUNG: Das Gerät soll in einer explosiven Umgebung NICHT verwendetwerden.ADVERTENCI

3.5.2 Taking A Difference Measurement> If the ∆ is not displayed, press [DIF] to activate difference mode.> The reference color must first be

3.6 CMC Difference OperationCMC is an ellipsoidal tolerancing method which attempts to correlate smallmeasured color differences with vi

CMC Difference Operation...continued3) Press [FUNCTION] and [ILLUM]at the same time to exit to the mainmenu."REFERENCES UPDATED" ismomentari

3.7 Measurement Averaging ProcedureWhen averaging is activated in setup, averaging operation will occur on absolutemeasurements, reference en

Measurement Averaging Procedure . . . continued4) Center the target window oversecond area on the sample tomeasure.5) Lower unit to target window andh

3.8 Store Data OperationThe data storage feature allows the unit to store measurement data for up to 500readings. (Refer to Sec. 5.

Store Data Operation . . . continued3) Measure second sample."READING XYZ C2" is momentarilydisplayed, then the measurement.Upon release of

Store Data Operation . . . continuedDELETE LAST MEASUREMENT6) Press [DIF] to delete the lastmeasurement made (this step canbe repeated to delete sever

3.9 Display MessagesThe most likely reasons for error messages to display are described below. If anerror message is consis

Display Messages . . . continued"CALIBRATION - NOT CHANGED" is displayed when the user decides to terminatethe calibration procedure by simu

FCCThis equipment has been tested and found to comply with the limits for a Class Adigital device, pursuant to Part 15 of the FCC Rules. These limits

4. CalibrationThe 948 & 968 should be calibrated to the X-Rite standard the first thing each dayand every four hours of o

4.1 Positioning the 968 Onto the X-Rite StandardYou must set the 948/968 on the white standard so that the maximum amount ofthe bottom rubber pad of

Shown below is an IMPROPER METHOD of measuring the standard.BOTTOM VIEWINCORRECT!30

Reflection StandardP/N 968-62Serial No. CXXXXXXXP-XXXXXIMPORTANT!by smudge marks and dust; and mustbe kept clean.The standard is dramatically affec

4.2 Calibrating to the White Standard> If you are changing aperture size: Do steps 1, 2, & 5a thru 5d. Skip steps 3 & 4.1) Press

Calibrating to a White Standard . . . continued4) Measure the WHITE patch on thestandard. You must hold the unitdepressed until all five readingshave

Zero Reflectance/Aperture size Setting . . . continued5a) Press [CHANGE].5b) Press [NO].5c) Press [NEXT] if the aperture size iscorrect (go to step 5d

5. Setting System Parameters5.1 AveragingThe averaging feature allows the unit to make several measurement

Averaging . . . continued3) Select "YES", press [DIF].4) Select the amount (1-99) of samplemeasurements required.• Hold down [DIF] and press

5.2 Operation ParametersOperation setup allows you to select various options, and individually turn on/offcertain functions. When a

DECLARATION OF CONFORMITYcomplies toEN45014:1989_____________________________________________________________________________________Manufacturer’s

Operation Parameters setup . . . continued6) Select Yxy ON or OFF.7) Select Lab (CIE), Lab (Hunter), orOFF.8) Select L*u*v* ON or OFF.9) Select L*C*h°

5.3 RS232 I/O ParametersYour instrument comes equipped with a serial port that allows data to betransmitted/received to/from an exte

RS232 I/O setup...continued3) Select "YES", press [DIF].> The basic procedure for the following steps is to press [TOGGLE] to set the I/O

5.4 Format Output ParametersThis procedure allows you set the output format of the RS232 port. Refer toSection 6 for sample print outs.

Format Output setup . . . continued2) Select "NO", press [FUNCTION] fourtimes.3) Select "YES", press [DIF].> The basic procedur

6. Printing DataThe RS232 parameters for the 948/968 serial interface are configured in Section5.3. The variables are:•Remote Co

Print Example 1:• Printer ON• All Print ON• Header ON• References ON• Decimal Point ON> If Header, References, orDecimal Point are turnedOFF, they

Print Example 2:• Computer ON• All Print ON• Header ON• References ON• Decimal Point ON> If Header,References, orDecimal Point areturned OFF, they

Print Example 5:• Spectral ON• All Print ON• Header OFF• References OFF• Decimal Point ON• Spectral ON• All Print ON• Header ON• References ON• Decima

7. Changing AperturesX-Rite has three different aperture kits available for the 948 & 968, and they arelisted below.• 8mm/4mm Aper

Dear Customer:Congratulations! We at X-Rite, Incorporated are proud to present you with anX-Rite Color Measurement Instrument. This instrument repres

Changing Apertures . . . continued3) Unscrew the existing aperture [5] with the aperture wrench [6].Note: The aperture wrench tool has two sides, one

8. Maintenance8.1. Troubleshooting The X-Rite 948/968 is covered by a one year limited warranty (excluding ni-cadbatteries) and should be referred t

8.2. Optics CleaningThe target window and optics should be cleaned once a week in normalenvironments; and more often in dirty or dusty environments.Ta

8.3. Battery Replacement 1. Set the 948/968 on it’s side and lock shoe in place. The shoe must be locked.2. Slide battery access door [1] toward botto

8.4. 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

8.5. Lamp ReplacementDue to the circuit complexity, alignment procedures, and test equipment required- The read lamp should only be replaced by X-Rite

A1 SpecificationsMeasuring Functions: Absolute Difference Indices:CIE XYZ ∆(XYZ)X%Y%Z% ∆(X%Y%Z%)CIE Yxy ∆(Yxy)CIE LAB ∆(L*a*b*)

Specifications . . . continuedStorage Temp. Range: -4° - 122°F (-20° - 50°C)Weight: 2.3 lbs. (1050 grams) Dimensions: 3 3/16" H x 3" W x

A3 Factory PresetsShown below are the factory presets for the Averaging, Operation, I/O, and Formatparameters.AVERAGING PARAMETERSAve

A4 Spectrophotometer StandX-Rite has an optionalmounting fixture available(P/N 968-80). The fixture canhold items that are amaximum of four

Table of ContentsOpening Letter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A5 Color CheckThe color check procedure will help you track instrument color performanceto assure measurement accuracy. Initially,

Color Check . . . continued7) After 10 days average the white, blue, and brown values and enter data in thedesignated place on the color check label.

COLOR CHECK RECORDDate: Illuminant: Observer:Temperature: Aperture Size: Model-S/N:Reference White Blue BrownValues L* a* b* L* a* b* L* a* b*Date60

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Operating Keys2 x 16 Character DisplayTarget WindowAC AdaptorCharger JackRS232I/O PortPROPRIETARY NOTICE: The information contained in this manual is

General Description The X-Rite 948 is a reflection spectrocolorimeter. The 948 measures spectralreflectance from 400nm to 700nm in 20nm intervals.