31
Signametrics
Remarks
This function reads the calibration date string from the structure. This is the date the
DMM was calibrated last.
Parameter
Type/Description
nDmm
int
Identifies the DMM. DMMs are numbered starting with zero.
lpszCalDate
LPSTR
Points to a buffer (at least 64 characters long) to hold the
cal date string.
Return Value
The return value is one of the following constants.
Value
Meaning
any positive number
Length of the date string
Negative number
Error code
Example
char
cBuf[64];
int status;
status = DMMGetCalDate(0, cBuf);
DMMGetdB
Description
Get dB deviation from the reading at the time relative was activated.
#include "SM2060.h"
int
DMMGetdB(int
nDmm, double *lpdDev)
Remarks
This function returns a double floating value that is the dB deviation relative to the
reading made just before the relative function was activated. This function is useful in
determining measurement errors in dB. It can be used for bandwidth measurements or
DC evaluation.
Parameter
Type/Description
nDmm
int
Identifies the DMM. DMMs are numbered starting with zero.
lpdDev
double *
Pointer where the dB value is to be saved.
Return Value
Integer error code..
Value
Meaning
DMM_OKAY
Operation successfully completed.
Negative Value
Error code
Example
double dB; int status = DMMGetdB(0, &dB);
DMMGetdBStr
Description
Get dB deviation from the reading at the time relative was activated.
#include "SM2060.h"
