97
Signametrics
hen using this function keep in mind that the accuracy
tance is not guaranteed. Also, modifying these values
d have profound efect on the operation of the function. Any time a capacitance range
o the default values. For instance, values of 1 and 3 for
uce measurement time on the 12nF range from 0.8s to
Parame
improve measurement speed. W
ification provided for capaci
spec
coul
is change, these values are set t
iAverage
, and
iSamples
will red
about 50ms.
ter Type/Description
with zero.
iSample
Return Value
Value
nDmm
int
Identifies the DMM. DMMs are numbered starting
iAverage
int
The average value, must be set between 1 and 100.
s
int
The number of samples must be set to at least 3.
The return value is one of the following constants.
Meaning
DMM_OKAY
Valid return.
Negative Value
Example
status
DMMSetCJTemp
MX2042
Description
Set cold ju
perature for thermocouple measurement.
e "
int
(int
nDmm, double dTemp)
measuring temperature using thermocouples it is necessary to establish a reference or
cold junction temperature. This is the temperature at which the thermocouple wires are
the DMM or to the switching card’s cooper wires. One way to do this is by
value using
DMMSetCJTemp()
function.
dTemp
must be entered
perature units.
Parame
Error code
int
= DMMSetCapsAveSamp(0,1,3);
SMX2040
;
S
;
SMX2044
;
nction tem
#includ
sm204032.h"
DMMSetCJTemp
Remarks
Set the cold junction temperature for subsequent thermocouple measurements. When
connected to
simply entering this
using the currently set tem
ter Type/Description
nDmm
e DMM. DMMs are numbered starting with zero.
o
C and
Return Value
Value
int
Identifies th
dTemp
double
The cold junction temperature. Must be set between 0
50
o
C or the corresponding
o
F.
The return value is one of the following constants.
Meaning
DMM_OKAY
lly terminated
ue
Example
DMMSetCJTem
Operation successfu
Negative Val
Error code.
p(0, 22.5);
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