Advantech MIC-3716, Manual

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Note:
Before you calibrate the A/D or D/A function, power must have been
turned on for at least 15 minutes to make sure the DAS card is stable.
A calibration utility, AutoCali.EXE , is included on the companion
CD-ROM :
AutoCali.EXE MIC-3716 calibration utility
This calibration utility is designed for the Microsoft Windows
environment. You can access this program from the default location:
\Program Files\ADVANTECH\ADSAPI\Utilities\MIC3716
5.2 VR Assignment
There is one variable resistor (VR1) on the MIC-3716 to adjust the
accurate reference voltage on the MIC-3716. We have provided a test
point (See TP4 in Fig. 5-1 ) for you to check the reference voltage on
board. Before you start to calibrate A/D and D/A channels, please
adjust VR1 until the reference voltage on TP4 has r5.0000 V.
Fig. 5-1 shows the locations of VR1 and TP4.