Specifications

55 Signametrics
while( ! DMMReadMeasurement(0 , Reading[i]) );
DMMCalibrate
SMX2040 ; SM 2
n
"sm204032.h"
int DMMCalibrate(int nDmm)
Remarks his function re-calibrates the DMM, and returns it to the current operating mode.
Parameter
X2042 ; SMX 044 ;
Descriptio Internally calibrates the DMM.
#include
T
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
Return Value owing constants.
The return value is one of the foll
Value
Meaning
DMM_OKAY
Negativ
r
Example status = DMMCalibrate(0); /* a quick internal cal.*/
Comments d is the same as the S-Cal command in the
VB Control Panel. It is not related to the external calibration represented in the
L
CleanRe
; SMX2042 ; SMX2044 ;
Des an specified relay.
#include "sm204032.h"
int DMMCleanRelay(int nDmm, int iRelay, int iCycles)
Remarks This function cleans iRelay by vibrating the contact iCycles . This function is useful for
its from the relay contacts. DC Current measurements
are particularly sensitive to K2 contact resistance and therefore should be cleaned
Parameter
DMM is OK.
e Value
Erro
This performs an internal DMM calibration an
SM40CA .DAT file.
DMM lay
SMX2040
cription Cle
removing oxides and other depos
periodically. It is also useful for making sound in computer without a speaker.
Type/Description
iRelay
int The relay to clean. 1 for K2, 2 for K2 and 3 for K3.
iCycles
int The numer of times the relay contac is shken. 1 to 1000.
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
Return Value Integer error code..
Value
Meaning
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