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  1. LANETR

    Interference on T/C inputs to PLC

    I have interference on analog inputs to a PLC via a thermocouple input module. There are 8 inputs, we are using 4 on this particular module. They are foil shielded type K T/C's. When the furnace zone approaches the set point temperature (~900°C) ONLY the 1st channel input starts fluctuating...

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