Advantech PCI-1720 Bedienungsanleitung PDF herunterladen (Seite 36)

32 PCI-1720 User's Manual

A.4 Current Sink Calibration

1. Select the 0 ~ +5 V (unipolar) output range for the channel to be

calibrated.

2. Set all digital input codes to 0. Then adjust VRn (n = 5, 6, 7, 8

depending on what channel is to be calibrated, see prior page) until

your ammeter’s reading is 0.00 mA or 4.00 mA (Depending on

jumper setting JP1 to JP4, see Section 3.1.1).

3. Set all digital input codes to 1. Now, adjust VRn (n = 1, 2, 3, 4

depending on what channel is to be calibrated, see prior page) until

your ammeter shows a reading equal to 20.00 mA.

4. Repeat steps 2 and 3 until both of them are satisfied.

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Advantech PCI-1720 Bedienungsanleitung Seite 36