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Temperature: Can the 7702 be used for measuring temperature with thermocouples?

問題:

Temperature: Can the 7702 be used for measuring temperature with thermocouples?

答案:

Yes. Although the 7702 does not have automatic cold junction compensation (CJC), there are still three ways to measure temperatures with thermocouples with this module:
  • By using the simulated CJC reference. This can be valuable when only the relative temperature rise is of interest, rather than the absolute temperature.
  • By using an external CJC reference placed inside the module. This can be accomplished with an RTD or thermistor connected to channel #1. All T/Cs are then compensated for against this reference.
  • By using an external CJC placed in a thermocouple 'patch panel.' This method is similar to the above description.

此常見問答集適用於:

產品系列: 吉時利 2700 萬用電錶/資料擷取/切換系統

產品:

常見問答集 ID 71301

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