Advantech PCI-1715U handleiding
Handleiding
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15 Chapter 4
The following list shows the function of each VR:
VR Function
VR1 A/D full scale (gain)
VR2 A/D bipolar offset
VR3 A/D unipolar offset
VR4 PGIA initial offset
TP1 PGIA output
4.3 A/D Calibration
Regular and accurate calibration procedures ensure the maximum possi-
ble accuracy. The ADCAL.EXE calibration program leads you through
the whole A/D offset and gain adjustment procedure. The basic steps are
outlined below:
1. Set analog input channel AI0 as single-ended, bipolar, range
±5 V and connect to the ground.
2. Read TP1 as V
G1.
3. Change AI0 range to ±0.625 V and read TP1 as V
G8.
4. Adjust VR4 until -0.05 mV < V
G1 - VG8 < 0.05 mV.
5. Repeat steps 1 ~ 4 until ther is no more need to adjust VR4.
6. Set analog input channel AI0 as single-ended, bipolar, range ±5 V,
and set AI1 as single-ended, unipolar, range 0 to 10 V.
7. Connect a DC vo l tag e s ourc e w ith v al ue eq ua l to 0. 5 LSB
(-4.9959 V) to AI0.
8. Adjust VR2 until the output codes from the card's AI0 flickers
between 0 and 1.
9. Connect a DC voltage source with a value of 4094.5 LSB (4.9953
V) to AI0.
10. Adjust VR1 until the output codes from the card's AI0 flickers
between 4094 and 4095.
11. Repeat step 7 to step 10, adjusting VR2 and VR1.
12. Connect a DC voltage source with value equal to 2047.5 LSB
(4.9959 V) to AI1.
13. Adjust VR3 until the output codes from the card's AI1 flickers
between 2047 and 2048.
Bekijk gratis de handleiding van Advantech PCI-1715U, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Advantech |
| Model | PCI-1715U |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 1665 MB |
