In Measurement Settings, from Device select eXact, connect the device to your computer, and press the power button to turn on the device. Configure the following parameters and press on Apply button.

  • Make your selection for Illuminant.
  • Make your selection for Observer.
  • Select the mode Spot/Scan, with or without UV filter (requires device calibration). The Spot mode allows scan count 1. More than 1 will switch to Scan mode and vice versa.
  • Select the size types, patches, or lines, and enter the size of the selected type.
  • Use Average to render your measurements.

Device Calibration

Before starting to use the device, it must be calibrated. The device has an integrated calibration plaque and will calibrate automatically when required. The calibration plaque is located directly below the optics when the device is in the open position (not locked).


Click on Calibrate button to make the action and follow the steps on the device display. Locate the device on a flat surface and tap the START button on the display. It will display a countdown screen and then perform the calibration.

Spot Measurement

1) Make sure that your device is calibrated.

2) Select Spot Mode.

3) Position the device on the patch you would like to measure. Scan chassis remains on the device during a spot measurement.

4) Lower the device to the target base and hold steady until the measurement is complete.

5) Release the device.

Scan Measurement

1) Make sure that your device is calibrated.

2) Select Scan Mode.

3) Enter scan count (number of the patches to measure).

4) Position the ruler with the device on the media above the first patch of row #1 of your chart.

5) Lower the device to the target base and hold steady until the measurement is complete.


6) In one continuous motion, roll the device across the color bar without stopping. Use the black scribe line on the edge of the chassis to align the device during the scan, and view the device display for scan speed indication. One of the circles appears on the device to provide feedback on your scanning speed.


Scanning the color bar too fast or too slow for an extended period of time may produce inaccurate measurement results. Always try to maintain a steady scanning speed with the white circle showing as much as possible for the best results.7) When the last patch is passed release the device.


8) Position the ruler with the device in front of the next row of your test chart and measure the next row