Operator`s manual

Signametrics 130
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
fRange
int The range to be set is a value between 0 and 7. See
USBDMMUser.h
Return Value Integer error code.
Value
Meaning
DMM_OKAY
Operation successfully completed.
Negative Value
Error code
Example
DMMSetCounterRng(0, COUNTR_640HZ); // Set counter to measure a
frequency between 130Hz to 640Hz
DMMSetDCISource
SMU2060  SMU2064 
Description Set the DCI source output level.
#include "SMU2060.h"
#include "USBDMMUser.h"
int DMMSetDCISource(int nDmm, double ldAmps)
Remarks This function sets the DC current source to ldAmps. The DMM must be in IDC_SRC,
and an valid range must be selected for this function to execute properly. Reading the
DMM (DMMRead or DMMReadStr) will return the voltage measurement at the
terminals. This function acts on the main source DAC. If better resolution is required it
can be accomplished by setting the Trim DAC by using the DMMSetTrimDAC
function. There are five current source ranges. The DMM reads the output (load) voltage
using the 2.4 V range at either the source terminals or the sense terminals, depending on
the state of the mode flag (see DMMSetSourceMode).
Parameter
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
ldAmps
double DC current to be set. Can be 0 to 1.25 X the selected range
Return Value Integer error code.
Value
Meaning
DMM_OKAY
Operation successfully completed.
Negative Value
Error code
Example
DMMSetRange(0, _1uA) // Select 1uA source range
DMMSetDCISource(0, 1.1e-6); // Set source to 1.1uA