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Specify sensor sensitivity


Use this property to specify the sensitivity of a standard RTD sensor in the session-based interface. A standard RTD sensor is defined as a 100–ohm platinum sensor.

When you create an RTD channel, the sensitivity is unknown and the RTDType property displays Unknown. You must change this to one of these valid values:

  • Pt3750

  • Pt3851

  • Pt3911

  • Pt3916

  • Pt3920

  • Pt3928


Set RTD Sensor Type

Set an RTD sensor’s sensitivity type.

Create a session and add an RTD channel.

s = daq.createSession('ni');
ch = addAnalogInputChannel(s,'cDAQ1Mod7',3, 'RTD');

Set the RTDType to Pt3851.

ch.RTDType = 'Pt3851'
ch = 

Data acquisition analog input RTD channel 'ai3' on device 'cDAQ1Mod7':

            Units: Celsius
          RTDType: Pt3851
 RTDConfiguration: ThreeWire
               R0: 'Unknown'
ExcitationCurrent: 0.0005
 ExcitationSource: Internal
         Coupling: DC
   TerminalConfig: Differential
            Range: -200 to +660 Celsius
             Name: ''
               ID: 'ai3'
           Device: [1x1]
  MeasurementType: 'RTD'
    ADCTimingMode: HighResolution