• Start LabView.
• Create the following
• A "Timed While Loop"
• The vi should allow the user to input the time interval between measurements.
• Add a temperature measurement vi inside the loop.  That is a special function that can be found at Public-Labs-LabVIEW-Hydra, and you can put it on your block diagram by using the "Select a vi" took at the lower left of the "All Functions" menu available from the Block Diagram.  The vi that you want is called "1Temp.vi".  That temperature measurement function has the following characteristics.
• It takes a GPIB error signal as an input.
• It outputs a string that you can display using a string indicator placed on the Front Panel.
• Add a a "ResetHydra.vi" from the same file folder.
• Keep the reset on the outside of the while loop.
• Wire the ResetHydra.vi from the outside of the loop to the 1Temp.vi inside the loop.  The wire will be a pink/purple wire that is very wide.  It carries error information, and needs to be used to tell the measurement vi that no GPIB error has occurred.
• When you do that wiring, you will get a "tunnell" through the loop wall.
• The Hydra should be connected to the computer and set to an address of 3, and, most importantly, it should be turned on.
• Check the operation of the vi.
• Run the vi using a one second time interval.  Check the timing and observe the results on the front panel.  Adjust timing if necessary.
• You need a thermocouple attached to Channel 1 of the Hydra in order to make this work.
• You should run the vi and heat the thermocouple with your body heat, and the indicated temperature should increase when heated, and decrease when released to the air.
• Next, add a "thermometer" indicator to the front panel.
• Determine if you can wire the string output to the thermometer.  Note the error message that you get.