Re: [foxboro] FBM01 PSS Document

Aymen,

The FBM01 can be wired so that the Foxboro internal power drives the =
4-20mA or it can be w1red so that an external power supply is used.

1. The maximum voltage for an external power supply is 42 V.

2. If internal power is used, Foxboro specifies V (open circuit) is 24 V =
dc
At 20 mA Foxboro specifies you will have 22 V.  So depending on the =
voltage drop at your transmitter you should be able to add about 500 =
ohms to the loop and still drive a 20 mA signal. The 500 ohms would have =
to include wire resistance, terminal resistance, etc.

Terry


Objet=A0: [foxboro] FBM01 PSS Document

Hi,
I'm looking for FBM01 pss document to check on some technical details =
around
the voltage that such card can support or provide to field instruments.

If available, please forward or advise.

Regards,

Aymen LAZAAR


=20
 
 
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