Dryhops
Member
I recently replaced a set of gas sensors wired to a micrologix 1400 L32AWAA. These new ones are 4-20mA and I didn't notice until install that the analog inputs of the 1400 are 0-10v. Took an hour of troubleshooting my scaling before I realized the obvious.
Conceptually, I understand that I can add a resistor of the appropriate ohms to 'convert' the sensor output from an amp loop to a voltage, but I've never wired up something like this.
Can anyone recommend their preferred solution for adding resistors in a cabinet? What components are typically used for a professional looking install? Searching around, I see many signal conditioners do what I need, but they would be more expensive than just buying more IO. Something inexpensive would help and make my oversight less costly.
Thanks for your time!
Conceptually, I understand that I can add a resistor of the appropriate ohms to 'convert' the sensor output from an amp loop to a voltage, but I've never wired up something like this.
Can anyone recommend their preferred solution for adding resistors in a cabinet? What components are typically used for a professional looking install? Searching around, I see many signal conditioners do what I need, but they would be more expensive than just buying more IO. Something inexpensive would help and make my oversight less costly.
Thanks for your time!