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0-24ma current source

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ray madayag

New Member
I am looking for a circuit that will allow me to simulate a 0-24mA current.
 

Ali Sajjad

New Member
Do u want this for simulating 4-20mA instruments ????.. which normally operate on 24Vdc, and have 250 ohm resistance ??? if this the case.. i can help u... id u want this for other purpose.. please let us know the details..

- Ali Sajjad
 

ray madayag

New Member
thanks guys for your prompt infos, i will be using this to simulate flow and pressure sensors having a 4-20mA output. We do have instruments to do this but i'd rather have one that is handy. Again thank you so much for your support. :D :D
 

Ali Sajjad

New Member
Thats it.. i have worked a lot with such instruments..... soon i will be back with sometyhing for u :)

-Ali Sajjad
 

panic mode

Well-Known Member
I like it. Note that 1k resistor should be 1Watt and the 1k pot
should be wirewound. It would be better to use PNP circuit so
that separate power source is only optional instead of required
(just about all electrical cabinets are already equiped with 24VDC
power supply, so you only need pair of aligators).
 

Ali Sajjad

New Member
panic mode said:
I like it. Note that 1k resistor should be 1Watt and the 1k pot
should be wirewound. It would be better to use PNP circuit so
that separate power source is only optional instead of required
(just about all electrical cabinets are already equiped with 24VDC
power supply, so you only need pair of aligators).
Yes this may be modified as panic told for use with the 24VDC available in all instrument contol and marshalling cabinets..

- Ali Sajjad
 
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