Keithley 2002 Calibration Manual

Calibration Programs
B-10
}
int calend(n) /* Check for cal end. */
int n;
{
int stat;
printf("Performing cal step #%d.\n",n+1);
do {
fprintf(ieeeout,"srq?\n");
fscanf(ieeein,"%d",&stat);
}
while (stat==0);
fprintf(ieeeout,"output 16;*esr?\n");
fprintf(ieeeout,"enter 16\n");
fscanf(ieeein,"%d",&stat);
fprintf(ieeeout,"spoll 16\n");
fscanf(ieeein,"%d",&stat);
}
void errcheck() /* Check for error. */
{
char errbuf[100];
fprintf(ieeeout,"output 16;:syst:err?\n");
fprintf(ieeeout,"enter 16\n");
fgets(errbuf,100,ieeein);
if (atoi(errbuf) !=0) printf("\n%s\n",errbuf);
}
void chkswit() /* Check cal switch. */
{
int swit=0;
while (swit==0){
fprintf(ieeeout,"output 16;:cal:prot:swit?\n");
fprintf(ieeeout,"enter 16\n");
fscanf(ieeein,"%d",&swit);
if (swit==0){
printf("Press CAL switch to "
"unlock calibration.\n");
fprintf(ieeeout,"local 16\n");
keypress();
}
}
}
void settle() /* Calibrator settle. */
{
int stat;
do {
fprintf(ieeeout,"output 4;isr?\n");
fprintf(ieeeout,"enter 4\n");
fscanf(ieeein,"%d",&stat);
}
while (!(stat & 0x1000));
}
void endpgm() /* End program. */
{
fprintf(ieeeout,"output 4;stby\n");
fprintf(ieeeout,"output 16;:syst:pres\n");
fprintf(ieeeout,"local 4 16\n");
printf("Calibration aborted.\n");
exit(1);
}

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A