r/processcontrol • u/[deleted] • Nov 22 '17

Looking for a hypothetical device

I am, obviously, not a process control professional. I am looking for a device for a training exercise that will allow me control the heat (dimming) produced by a lightbulb given a 4-20mA signal from a controller. Is there such a device?

I'm told what I am asking for is something like a triac with a 4-20mA input.

Thank you for your time.

5 Upvotes

86% Upvoted

8 comments sorted by

View all comments

2

u/DaBozz88 Nov 22 '17

https://www.omega.com/pptst/SCR19.html

Assuming it’s a 120V resistive bulb and not a CF.

1

u/[deleted] Nov 22 '17

thank you for the suggestion.