Operator`s manual

89 Signametrics
Return Value DMM hardware code or an error code.
Value
Meaning
Positive value
Hardware version code
Negative Value
Error code
Example int HWOption = DMMGetHwOption(0);
DMMGetID
SMU2060  SMU2064 
Description Get DMM ID code.
#include "SMU2060.h"
int DMMGetID(int nDmm)
Remarks This function returns the DMM identification code. Each DMM has a unique ID code
that must match the calibration file card_ID field in SM60CAL.DAT. This code must
reflect the last digits of the DMM serial number.
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting
with zero.
Return Value Integer value card ID code (serial number) or an error code.
Value
Meaning
DMM_E_DMM
Invalid DMM number.
Example int id = DMMGetID(0);
DMMGetLowFreqVRMS
SMU2060  SMU2064 
Description Measure average of an AC voltage
#include "SMX2060.h"
int DMMGetLowFreqVRMS(int nDmm, double dFrequency, double *lpdVRMS)
Remarks This function returns a double floating value of a low frequency RMS voltage. The
DMM must be in the DC voltage measurement mode, and the appropriate range selected.
The signal frequency dFrequency, must be entered.
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
dFrequency
Double The signal frequency
lpdVRMS
double * Pointer where the RMS result is saved at.