Ive got my hands on some CSLA2CF hall effect current sensors.
They look to be ideal for the job we want them to do, onsite power monitoring
These are a three pin device with the following characteristics:
Vs 6-12
Is 20mA max
I(sensed) 125A max
Voffset Vcc/2
Sensitivity 19.6mV/NI @ 8VDC
temp offset 0.02% / degC
I believe this means that with a supply voltage of 12V and the wire passing through the toroid without a turn (ie N=1) a current of 0A will produce an output of 6V
a current of 5A will produce 6V+5x19.6mV =6.098V.
Our KPC9612+ telemetry channels want a 0-5V reading
That pretty much sums up the interfacing requirements. looks like our 2:1 voltage divider will come into play again.
I'll be posting some pix and diagrams soon. stay tuned!
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment