Does the 3-phase current sensor (PR55-26) absolutely need to be calibrated

Products
1

Hello,

I purchased a few 3-phase current sensors to install at one of my clients’ sites (PR55-26). I’ve read some posts on the forum mentioning a rather complex and difficult-to-understand procedure for calibrating these sensors using the “Channel X Current Calibration Value” field in the Node-Red configuration node.

My question is: is it absolutely necessary to calibrate these sensors before using them, or should this only be done when the measured values are inaccurate?

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3 Channel AC Current Sensor | Motor Current Monitor

Thank you

2

Hi @bertrand.gauvreau sure, let me ask you;

  1. What is the CT current probe range?
  2. What is the AC Current range you will measure (your AC Current machine range)?

Thank you.

3

we ship pre calibrated. if you change the CT then yes you will need to recalibarte.

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