Process Control Frequently Asked Questions
Process Control Frequently Asked Questions
| Question | How many feet of thermocouple wire can I use? |
| Answer | There is an input limitation of >10Mohms impedance for the PM/TC/PC controllers and >4.7M for the Solo controllers. Review the specifications of the thermocouple wire (diameter, distance, material, etc.) to make a determination of distance limitations. If the environment is electrically noisy or the run exceeds the limitations of the controller, then a transmitter can be used to boost the signal and convert it to a 4-20 ma input (in which case a TC33 cannot be used because of no 4-20 ma input.) |
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This item was last updated on 09-21-2007
Document ID: 926
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