Keysight E1418A Option 002, Service Manual

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68 Keysight E1418A Service Guide
Adjustments Adjustment Procedure
Return the Module to Use
If you have changed the position of the Cal Store Enable Jumper and you wish to
prevent writing calibration constants to non-volatile memory, set the jumper to
the SECURE position.
If you have changed the position of the terminal jumpers return the jumpers to
their original positions.
Example Program
The following program, written in ANSI C illustrates a full calibration of all
channels for both voltage and current. The internal calibration resistor is used.
The disk provided with this manual contains a calibration example file. This
example uses function calls to the Keysight VISA Transition Library for I/O
operations.
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/** FUNCTION PROTOTYPES **/
void main (void);
void err_handler(ViSession vi, ViStatus x); /* VTL error routine
*/
void sys_err(ViSession resource); /* Checks for SCPI programming
errors */ void pause(); /* Waits for a keystroke to
continue program execution */ int config_check ();
/* Checks and reports the module configuration */
/* returns the number of channels in module*/ float get_voltage (); /*
Obtains the measured voltage*/ float get_resistance ();/* Obtains the
measured resistance */
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void main (void)
{
char cal_point [5],int_ext [4];
int num_chan,result,compare,i,condition [4];
float meas_volt,meas_res;
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/*** VOLTAGE OUTPUT ADJUSTMENT ***/
for (i=1;i<n1;i++)