Sketch the necessary wiring to make this pressure switch control two lamps in the following manner:
- High process pressure: green lamp on and red lamp off
- •Low process pressure: red lamp on and green lamp of
Hint: remember that the “normal” status of a switch is defined as the status of minimum stimulus: when the switch is exposed to the lowest possible degree of process stimulation (in this particular case, to the lowest possible pressure).
Answer :
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Credits : by Tony R. Kuphaldt – under CC BY 1.0
