Calibration; What You Need; Vr Assignment; Table 7-1: Functions Of Vrs - ADLINK Technology NuDAQ PCI-9810 User Manual

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Calibration

In data acquisition, calibrating your measurement devices to
maintain the accuracy is very important. Users can calibrate the
analog input and analog output channels under the users'
operating environment to optimize the accuracy. This chapter
describes the calibration process for PCI-9812/10.

7.1 What you need

The following equipment would be required for the process:
Calibration utility: The program would guide the user
through the calibration process once executed. This
program is included in the delivered package.
A voltage calibrator or a very stable and noise free DC
voltage generator.

7.2 VR Assignment

There are eight variable resistors (VR) on the PCI-9812/10 board
that allows the user to make accurate adjustments on A/D
channels. The function of each VR is specified in Table 7-1:
VR1
VR2
VR3
VR4
VR5
VR6
VR7
VR8
Calibration
A/D channel 0 offset adjustment
A/D channel 1 offset adjustment
A/D channel 2 offset adjustment
A/D channel 3 offset adjustment
A/D channel 0 full scale adjustment
A/D channel 1 full scale adjustment
A/D channel 2 full scale adjustment
A/D channel 3 full scale adjustment

Table 7-1: Functions of VRs

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