R0
Specify resistance value
Description
Use this property to specify the resistance of the device.
You can specify any acceptable value in ohms. When you add an
RTD Channel, the resistance is unknown and the R0
property
displays Unknown
. You must change this value to
set the resistance of this device to the temperature you want.
Example
Set RTD Channels Resistance
Create a session and add an RTD channel.
s = daq.createSession('ni'); ch = addAnalogInputChannel(s,'cDAQ1Mod7',3, 'RTD');
Change the channels resistance to 100°C.
ch.R0 = 100
ch = Data acquisition analog input RTD channel 'ai3' on device 'cDAQ1Mod7': Units: Celsius RTDType: Unknown RTDConfiguration: Unknown R0: 100 ExcitationCurrent: 0.0005 ExcitationSource: Internal Coupling: DC TerminalConfig: Differential Range: -200 to +660 Celsius Name: '' ID: 'ai3' Device: [1x1 daq.ni.CompactDAQModule] MeasurementType: 'RTD' ADCTimingMode: HighResolution