Im using my LakeShore 335 with LabView to control temperature in my measuring cell, where I'm measuring some physical properties with probe with inbuilt temperature sensor. Because of construction of my measuring cell it is impossible to put temperature sensor (connected to LakeShore) enough close to sample to correctly set temperature in sample. So my question is: It is possible to use value of temperature read by another device and switch it with temperature read form LakeShore using LabView?
Post by Lake Shore Jeff M on Aug 10, 2018 6:51:49 GMT -5
If you are using the Model 335 to control the temperature, and want to use the reading from a different sensor for the control, there is no way you can do that in the Model 335 controller unless you can connect that sensor to the second Input on the controller. If the sensor cannot be directly connected to the controller, the only thing you could do is to do all of the PID Calculations in Labview and then manually set the heater output via Interface commands from your Labview program.
Thank you for fast reply Jeff. Meantime I looked through manual for LakeShore 335, and I noticed that there is analog output, so myayby it will be possible to simulate voltage on diode/pt100 based on temperature readings from second device by connecting analog output with proper pins in Input A or B, but I don't know if it is possible to controll analog output by LabView? What do you think about it?
Post by Lake Shore Jeff M on Aug 10, 2018 8:52:53 GMT -5
The analog output will provide a voltage representing the temperature displayed on the input that is assigned to the analog output. This output could be connected to a PLC like device that is also controlled by your Labview application. I suggest you check with National Instruments to see if they have a recommended device to use.