Keithley KPCI-3110, User Manual

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KPCI-3110 and KPCI-3116 User’s Manual Calibration 5-3
Calibration procedure
This section describes the steps required to calibrate the analog inputs and outputs of your
KPCI-3110 or KPCI-3116 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 STP-3110 screw terminal accessory to your KPCI-3110 or KPCI-3116 board,
using the CAB-307 cable. Refer to Section 3 , “ Installation and Configuration ,” for more
information 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-3110 and KPCI-3116
Calibration 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-3110 and KPCI-3116 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-3110 and KPCI-3116 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 subsection.
Calibrating the analog outputs
The KPCI-3110 and KPCI-3116 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-3110 and KPCI-3116 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.