ADLINK cPCI-9116 - Manual (Page 95)

Software Utility & Calibration
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7.2.3.1 PGA offset Calibration
1. Short the A/D channel 0 (pin 2 of J1) to ground (pin51 of J1).
2. Use multi-meter to measure the voltage between TP1 and TP2 on board.
3. Adjust VR4 to obtain the multi-meter value as close as possible to 0V.
7.2.3.2 Bipolar input Calibration
1. Calibrate the PGA offset as described in 7.2.3.1.
2. Connect A/D channel 0 (pin 2 of J1) to ground (pin 51 of J1), and Applied a
precise +5V to A/D channel 1 (pin 3 of J1).
3. Trim VR2 to obtain the reading of A/D channel 0 flicks between 0 to 1, and
Trim VR3 to obtain reading of A/D channel 1 flicks between 32766~32767.
7.2.3.3 Unipolar input Calibration
1. Calibrate the PGA offset as described in 7.2.3.1.
2. Applied a precise +5 V input signal to A/D channel 1 (pin 3 of J1).
3. Trim VR1 to obtain reading flicking between 0~1.
7.3 Functional Testing
This function is used to test the functions of the 9116 series card, it includes
Digital I/O testing, A/D polling test, A/D Interrupt Test, A/D with DMA test, A/D
with DMA & pre-trigger test, A/D with DMA & mn-trigger test, A/D with DMA &
post-trigger test, A/D with DMA & delay-trigger with re-trigger=3 test, and A/D
with continuous DMA test (Double buffer mode).
When you choose one of the testing functions from the function menu, a
diagram is displayed on the screen. The figure below is the function testing
menu window.