Agilent Technologies E1356A Manuale di Servizio Scaricare il pdf (Pagina 64)

Example: Leakage

Current Test

This example performs a leakage test from HI to LO, HI to Chassis, and LO

to Chassis. If the leakage is too high (caused by a failure of the input

impedance), the test prints a message indicating which leakage path has

failed and halts.

/* Leakage Current Test E1351A */

#include <stdio.h>

#include <sicl.h>

#define ADDR "hpib7,9,14" /* Address of device */

#define DMM "hpib7,22"

void main (void)

{

INST id, dm; /* Define id and dm as an instrument */

int i;

double result[6][4], value;

char cr[256];

char *path;

#if defined(__BORLANDC__) && !defined(__WIN32__)

_InitEasyWin();

#endif

ionerror(I_ERROR_EXIT);

dm = iopen (DMM);

id = iopen(ADDR);

itimeout (dm, 10000);

itimeout (id, 10000);

printf ("\n\n\nInstall Component Assembly and Test Fixture");

printf ("\n\n 1. Turn Mainframe AND 3458a DMM power OFF.");

printf ("\n 2. Connect GPIB Cable between mainframe and DMM.");

printf ("\n 3. Install Agilent E1351A Component Assembly into Mainframe.");

printf ("\n 4. Attach Test Fixture to Component Assembly.");

printf ("\n 5. Turn Mainframe and DMM power ON");

printf ("\n 6. Press ENTER when ready to begin testing.");

getchar ();

/*...........................Measure Leakage........................................*/

iprintf (dm, "PRESET NORM;TRIG HOLD\n");

iprintf (dm, "END ALWAYS\n");

iprintf (dm, "FUNC DCV\n");

for (i = 0;i <= 5; i++)

{

iprintf (id, "*RST\n");

printf ("\n\n1. Connect 100 kOhm resistor from DMM Input HI to DMM Input LO");

A-6 Example C Programs

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Agilent Technologies E1356A Manuale di Servizio Pagina 64

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