Keithley KPCI-3101 Series, User Manual

Page: 85 / 146

KPCI-3101 — KPCI-3104 Series User’s Manual Calibration 5-3
Calibration procedure
This section describes the steps required to calibrate the analog inputs and outputs of your
KPCI-3101–4 Series board.
Preparing for the calibrations
Prepare your system for calibration as follows:
1. Warm up the calibrator and the DVM/DMM.
2. Turn OFF the host computer.
3. Connect the STA-300 screw terminal accessory to your KPCI-3101–4 Series board, using
the CAB-305 cable. Refer to Section 3 , “Installation and Configuration” for more informa-
tion about connecting these accessories.
4. Turn ON the host computer.
5. Start the calibration utility as follows:
a. Click on the Windows Start tab.
b. In the Start menu, click Programs.
c. Find the DriverLINX folder and click the Test Panels
→
KPCI-3101–4 Series Cali-
bration Utility entry. The Select DriverLINX Device dialog box appears.
d. In the Select DriverLINX Device dialog box, select your board and click OK. The
KPCI-3101–4 Series Calibration Utility dialog box appears.
Calibrating the analog inputs
In this part of the procedure, offset and gain adjustments for the analog input and A/D Converter
(ADC) circuits are made. Do the following:
1. In the KPCI-3101–4 Series Calibration Utility dialog box, click the A/D Calibration tab.
The A/D Calibration dialog box appears.
2. To calibrate the analog inputs, follow the on-screen instructions in the The A/D Calibration
dialog box.
3. When finished with the analog input calibration, continue with the next section, “Calibrating
the analog outputs.”
Calibrating the analog outputs
The KPCI-3101–4 Series boards each have two independent analog outputs, provided by two
digital-to-analog converters (DACs or D/A converters). In this part of the procedure, offset and
gain adjustments for the DACs are made. Do the following:
1. In the KPCI-3101–4 Series Calibration Utility dialog box, click the D/A Calibration tab.
The D/A Calibration dialog box appears.
2. To calibrate each DAC, follow the on-screen instructions in the D/A Calibration dialog box.