General Program Instructions - Keithley 2303 Service Manual

General program instructions

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With the power off, connect the Model 2303 and the digital multimeter to the IEEE-488
interface of the computer. Be sure to use shielded IEEE-488 cables for bus connections.
Turn on the computer, the Model 2303, and the digital multimeter. Allow the Model 2303
and the multimeter to warm up for at least one hour before performing calibration.
Make sure the Model 2303 is set for a primary address of 16.
Make sure the digital multimeter primary address is set to 17.
Make sure that the computer bus driver software (CECHP.EXE) is properly initialized.
Enter the QBasic editor, and type in the program below. Be sure to use the actual charac-
terized resistor values when entering the parameters.
Check thoroughly for errors, then save the program using a convenient filename.
Run the program, and follow the prompts on the screen to perform calibration. For test
connections, refer to the following figures in Section 2:
• Voltage connections: Figure 2-2.
• 5A current connections: Figure 2-3.
• 5mA current connections (Models 2303 and 2303B): Figure 2-4.
• 500mA current connections (Model 2303-PJ): Figure 2-5.
Calibration Programs C-3