Operator`s manual

Signametrics 122
DMM_
Negativ
Example
DMMSetSens
SM2060 ; SM2064 ;
Description
int DMMSetSensorParams(int , double lda, double ldm, double ldb)
Remarks This function sets th n
termerature read cold
junction sensor output voltage. This function set the paramters for the sensor as to allow
a wide range of e
Signametrics Te the SM40T and SMX40T screw terminals.
The cold junction temperature is calculated by converting the sensor’s voltage to
temperature. Fo
Parameter
OKAY
Operation successfully completed.
e Value
Error code
DMMSetFunction(0, RTD); // RTD measurement function
DMMSetRange(0, 1 _pt385); // Select RTD
DMMSetRTD(0, RTD_4_W, 1000.0); // Set Ro = 1k Ohms
orParams
Set the cold junction temperature sensor equation parameters.
#include "SM206032.h"
nDmm
e parameters of the temperature sensor. It effects the cold junctio
ing which is defined by ((Vcjs - lda) / ldm) + ldb, where Vcjs is the
sensors to be used. The default parameters are designed to work with th
mperature sensor found on
r more information read about DMMReadCJTemp().
Type/Description
nDmm
tarting with zero.
lda
double the ‘a’ parameter.
he ‘m’ parameter.
Return Value rror co
int Identifies the DMM. DMMs are numbered s
ldm
double t
ldb
double the ‘b’ parameter.
Integer e de.
Value Meaning
DMM_O
Negativ Value
Exa
SensorParams(0, 0.558, -0.002, 22.0);// set parameters
SetSourceM
SM2064 ;
KAY
Operation successfully completed.
e
Error code
mple
DMMSet
DMM ode
SM2060 