D T P 3 4 D E N S I T O M E T E R
6
Calibration
The X-RiteColor Quick Cal Densitometer has a unique semi automatic calibration feature. When the reflection
reference is scanned, the calibration values are also automatically scanned.
Frequency of Calibration
Your QuickCal Densitometer should have a Quick Calibration performed weekly. A Full Calibration should be
performed annually, during heavy usage to provide accurate measurements, or if the Quick Calibration consistently
fails. Typically, the host computer prompts for an instrument calibration (amber LED) when required but the process
can be invoked manually at any time. Refer to the following procedure for details on the calibration process.
Positioning the Instrument on the Calibration Reference
Handle the reflection reference by the edges. Make sure that the reflection reference is free of dust, dirt and
smudgemarks. Refer to General Maintenance Section for cleaning procedure. Always store the reflection reference
in it protective envelope away from light and heat.
NOTE:
To obtain the most accurate calibration, hold the instrument with consistent and nominal pressure
during the calibration procedures.
Position the instrument on the designated location of the reflection reference (indicated by a dotted outline of the
instrument). Do Not move the instrument more than .25
″
(6.35mm) before reading the strip.
Quick Calibration
A quick calibration can be performed at any time. All that is required is that you scan the reflection reference as you
would with any other strip. A quick calibration should only be performed after a full calibration has been done. The
instrument comes from the factory with a full calibration already stored.
1. Position instrument on reference as previously mentioned.
2. Press and hold the button and scan the reference to the opposite end. Release the button. The LED should
indicate green if calibration was successful. If calibration fails, (fast flashing amber LED), verify the strip is
clean and re-read.
3. Place the reflection reference in its protective envelope and store away from light and heat.
Full Calibration
NOTE:
If the host computer initiated calibration (amber LED), skip to step 2.
1. To manually invoke the calibration mode, press and hold the instrument button for a minimum of three seconds.
The LED will slowly flash amber when calibration is initiated.
2. Press and the hold button (if not previously held) and scan the reference to the opposite end. Release the button.
The LED should indicate green if calibration was successful. If calibration fails, (fast flashing amber LED),
verify the strip is clean and re-read.
3. Place the reflection reference in its protective envelope and store away from light and heat.
Reflection Reference
DTP34-100
