Keithley 1801, Инструкция по эксплуатации, Страница: 77 / 93

B
Calibration Programs
B-1
Introduction
This appendix includes programs written in QuickBASIC
and Turbo C to aid you in calibrating the Model 1801. See
paragraph 5.2 in Section 5 for details on offset adjust-
ments, recommended calibration equipment, test connec-
tions, and detailed calibration procedures.
Program requirements
In order to use the calibration programs, you will need the
following:
• IBM PC, AT, or compatible computer.
• IOtech Personal488, CEC PC-488, or National
Instruments PC-II or IIA IEEE-488 interface for the
computer.
• Shielded IEEE-488 cable(s) (Keithley Model 7007).
• MS-DOS or PC-DOS version 3.3 or later.
• Microsoft QuickBASIC version 4.0 or later, or Bor-
land C Turbo C version 2.0 or later.
• IOtech Driver488 IEEE-488 bus driver, Rev. 2.3 or
later. (Note: recent versions of Driver488 may not
support other manufacturers' interface cards.)
General program instructions
1. With the power off, connect the Model 2001 to the
IEEE-488 interface of the computer. If you are using
one of the programs that controls the Fluke 5700A
calibrator, connect the calibrator to the IEEE-488 bus
as well. Be sure to use shielded IEEE-488 cables for
bus connections.
2. Turn on the computer, the Model 2001, and the cali-
brator. Allow the Model 2001 and 1801 to warm up
for at least two hours before performing calibration.
3. Make sure the Model 2001 is set for a primary
address of 16. You can check or change the address as
follows:
A. Press MENU, select GPIB, then press ENTER.
B. Select MODE, then press ENTER.
C. Select ADDRESSABLE, and press ENTER.
D. If the address is set correctly, press EXIT as nec-
essary to return to normal display.
E. To change the address, use the cursor keys to set
the address to the desired value, then press
ENTER. Press EXIT as necessary to return to
normal display.
4. If you are using the Fluke 5700A calibrator over the
bus (Programs B-3 and B-4), make sure that the cali-
brator primary address is at its factory default setting
of 4.
5. Make sure that the computer bus driver software is
properly initialized.
6. Enter the QuickBASIC or Turbo C editor, and type in
the desired program. Check thoroughly for errors,
then save it using a convenient filename.
7. Compile and run the program, and follow the prompts
on the screen to perform calibration.