Operator`s manual

55 Signametrics
Example double Reading[250];
st 10, 250); // settle 10 reads., 250 samples
for(i=0; i < 250 ; i++) // read 250 meas. as they come
asurement(0 , Reading[i]) );
te
DMM.
Parameter
DMMBur Read(0,
while( ! DMMReadMe
DMMCalibra
SM2040 ; SM2042 ; SM2044 ;
Description Internally calibrate the
#include "sm204032.h"
int DMMCalibrate(int nDmm)
Remarks This function re-calibrates the DMM, and returns it to the current operating mode.
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
Return Value The return value is one of the following constants.
Value
Meaning
DMM_OKAY
DMM is OK.
Negative Value
Error
Example status = DMMCalibrate(0); /* a quick internal cal.*/
Commen e as the S-Cal command in the
VB Control Panel. It is not related to the external calibration represented in the
T file.
M2042 ;
Description
Remarks
nd other deposits from the relay contacts. DC Current measurements
are particularly sensitive to K2 contact resistance and therefore should be cleaned
iodically. It i king sound in computer without a speaker.
eter
ts This performs an internal DMM calibration and is the sam
SM40CAL.DA
DMMCleanRelay
SM2040 ; S SM2044 ;
Clean specified relay.
#include "sm204032.h"
int DMMCleanRelay(int nDmm, int iRelay, int iCycles)
This function cleans iRelay by vibrating the contact iCycles . This function is useful for
removing oxides a
per s also useful for ma
Param Type/Description
iRelay
int The relay to clean. 1 for K2, 2 for K2 and 3 for K3.
iCycles
er of times the relay contac is shken. 1 to 1000.
Identifies the DMM. DMMs are numbered starting with zero.
int The num
nDmm
int