Re: [foxboro] flow meter

Yes, same here.  All our flowmeters have 4-20mA outputs.  The pulse 
outputs are either secondary or options, and we haven't used them except 
occasionally in standalone batching systems (the flow computers for the 
batching usually take a pulse input).

Depending on the characteristics of your oil and the flow rate, you might 
be able to use any of dP, vortex, thermal dispersion, coriolis, or 
ultrasonic measurements.  Magnetic is probably not an option unless the 
oil has impurities that raise its conductivity.  In any case, meters of 
all those types from well-known, reputable vendors have 4-20mA outputs.


Corey Clingo
BASF Corporation






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Subject
[foxboro] flow meter







Hi guys,

Just wondering if any of you are using flowmeters in your piping and which
type you have good experiences with. We're thinking on installing a
Flowmeter in an oil header. We haven't got flowmeters for the moment, our
products usually are not suited for flowmeters. Except for the oil 
headers.
We usually work with loadcells but for this project we would need a
flowtransmitter.
Problem seems to be these flowmeters don't transmit 4-20 ma but pulses. 
Our
DCS can't handle the number of pulses per second, so we'll need a seperate
controller. Are there any flowmeters (2" pipe) that transmit 4-20ma?

Thanks & Rgds

Dirk

 
 



 
 
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