Calibration

Before starting to use the DataMan 8072 Verifier for verifying barcodes, you need to calibrate the device. Perform the following steps to calibrate the unit.

  1. In the TruCheck Verification window, click the Calibration icon in the top left corner.

  2. Enter the Rmax and Rmin values from the calibration card.

  3. Select the Center Target button.

  4. A live image appears in the Calibration screen. Center the verifier over the calibration symbol.

  5. Click Start Calibration. A Calibrating progress bar appears in the window.

  6. The verifier goes through a series of lighting calibrations. After a successful calibration, two kind of message window pop up.

If you performed the calibration with one of the supported NIST-traceable calibration symbols, the pop-up displays the following:

When you perform a successful calibration with a supported NIST-traceable calibration symbol, a calibration time stamp appears on the bottom of the TruCheck window and is printed on the header of the report.

Supported NIST calibration symbols:

  • 2D symbol on the Cognex Calibration Card (Cognex #DMV-CCC)
  • Symbols 1 and 5 on the Applied Image Conformance Calibration Standard Enhanced Test Card for ISO IEC Datamatrix and GS1 Datamatrix (Cognex #DMV-DMCC)
  • Symbol 1 on the GS1 ISO Data Matrix & GS1 Datamatrix Calibrated Conformance Standard Test Card (Cognex #DMV-GS1CC)

If you performed the calibration successfully with any readable symbol other than the supported NIST-traceable calibration symbols, the pop-up displays the following:

If you perform a successful calibration with a non-NIST-traceable calibration symbol, no calibration date is recorded on the reports or displayed on the Main tab in the TruCheck window.

For both successful calibration messages, you have the options to save the calibration to non-volatile memory.

  • If you select Yes, the verifier saves the calibration for subsequent verifications and the values to non-volatile memory. If you power down the verifier, the calibration persists.

  • If you select No, the verifier saves the calibration for subsequent verifications but does not save the values to non-volatile memory. If you power down the verifier, the calibration values get lost.

If the calibration failed, the pop-up displays the following message:

Note:

A failed calibration means that the calibration target is not detected. Make sure that:

  • A valid, readable barcode is visible within the field of view

  • You have selected the region of interest that includes the barcode that you use for calibration

  • The calibration barcode symbology type is supported

  • The calibration barcode symbology type is enabled in Code Details tab in the Setup Tool window

  • The verifier is not set for multiple verifications

  • No filtering is enabled

Calibrate your verifier as needed to ensure accurate verification results. Monthly calibration is recommended, or more frequently where required by internal quality guidelines.

Note: Store the calibration card away from direct light to avoid compromising the calibration symbol.

Enable a calibration reminder in Calibration Settings menu to alert you about the next scheduled calibration. After enabling the calibration reminder, set the number of days for prompting a calibration reminder. For more information, see Calibration Settings.

Click Discard Calibration to remove all calibration values and return the verifier to an uncalibrated state.