7.1.3Calibration

This function guides you to calibrate the PCI-9111. The calibration program serves as a useful test of the PCI-9111's A/D and D/A functions and can aid in troubleshooting if problems arise.

Note: For an environment with frequently large changes of temperature and vibration, a 3 months re-calibration interval is recommended. For laboratory conditions, 6 months to 1 year is acceptable

When you choose the calibration function from the main menu list, a calibration items menu is displayed on the screen. After you select one of the calibration items from the calibration items menu, a calibration window shows. The upper window shows the detailed procedures which have to be followed when you proceed the calibration. The instructions will guide you to calibrate each item step by step. The bottom window shows the layout of PCI-9111. In addition, the proper Variable Resister (VR) will blink to indicate the related VR which needs to be adjusted for the current calibration step.

****** PCI-9111 Calibration ******

<1> D/A (Bipolar) channel voltage full range adjusting <2> D/A (Unipolar) channel voltage full range adjusting <3> A/D (Gain = 1, -10V ~ 10V) adjusting

<Esc> Quit

Select 1 to 3 or <Esc> to quit calibration.

If you select 3, the following figure displays on the screen:

70 Software Utility

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HP NuDAQ I-9111DG/HR manual Calibration