Operator`s manual

Signametrics 84
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
Return Value The return value is one of the following constants.
Value
Meaning
0 to 7
Valid DMM frequency range.
Other value
Error code
Example int fRange; // Find on which bus, and slot the DMM is at
DMMGetCounterRange(0); // Get range
DMMGetDeviation
SMU2060  SMU2064 
Description Get percent deviation from the reading at the time relative was activated.
#include "SMU2060.h"
int DMMGetDeviation(int nDmm, double *lpdDev)
Remarks This function returns a double floating value that is the percent deviation relative to the
reading made just before the relative function was activated (DMMSetRelative). This
function is useful in quantifying measurement errors. It can be used for bandwidth
measurements or DC evaluation, or percent variation of a device under test over
temperature. The absolute value of lpdDev can be used as a pass/fail window for
production. Another function effecting DMMGetDeviation is DMMSetReference.
Unlike DMMSetRelative, which uses the current measurement as a reference,
DMMSetReference provides the facility to set this reference.
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
lpdDev
double * Pointer where the deviation value is to be saved.
Return Value Integer error code..
Value
Meaning
DMM_OKAY
Operation successfully completed.
Negative Value
Error code
Example double error;
int status = DMMGetDeviation(0, &error);
DMMGetDeviatStr
SMU2060  SMU2064 
Description Get percent deviation from the reading at the time relative was activated.
#include "SMU2060.h"
int DMMGetDeviatStr(int nDmm, LPCSTR lpszDev)