Chapter 5
Using the SCXI-1502
©
National Instruments Corporation
5-5
SCXI-1502 User Manual
Analog Input»General Properties»
Advanced»High Accuracy Settings»
Auto Zero Mode
AI.AutoZeroMode
Specifies when to measure
ground. NI-DAQmx subtracts
the measured ground voltage
from every sample.
Analog Input»General Properties»
Advanced»Input Configuration»
Coupling
AI.Coupling
Specifies the input coupling of
the channel. The SCXI-1502
supports DC and GND
coupling.
Table 5-2.
NI-DAQmx Thermocouple Measurement Properties
Property
Short Name
Description
Analog Input»Temperature»
Thermocouple»Type
AI.Thermcpl.Type
Specifies the type of thermocouple
connected to the channel.
Analog Input»Temperature»
Thermocouple»CJC Source
(read only)
AI.Thermcpl.CJCSrc
Indicates the source of
cold-junction compensation.
Analog Input»Temperature»
Thermocouple»CJC Value
AI.Thermcpl.CJCVal
Specifies the temperature of the
cold-junction if the CJC source is
constant value.
Analog Input»Temperature»
Thermocouple»CJC Channel
(read only)
AI.Thermcpl.CJCChan
Indicates the channel that acquires
the temperature of the cold
junction if CJC is channel.
Table 5-3.
NI-DAQmx RTD Measurement Properties
Property
Short Name
Description
Analog Input»Temperature»
RTD»Type
AI.RTD.Type
Specifies the type of RTD
connected to the channel.
Analog Input»Temperature»
RTD»R0
AI.RTD.R0
Specifies the resistance in ohms of
the sensor at 0
°
C.
Table 5-1.
NI-DAQmx Voltage Measurement Properties (Continued)
Property
Short Name
Description