1 Orifice Plate with 3 Flow Transmitters | Instrumentation basics

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If you see here, this is a orifice
0:02
plate. We are measuring the flow using
0:06
orifice by creating differential
0:09
pressure and then using impulse lines
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for measuring this DP. This is the basic
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principle of a RFI based flow
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transmitter. These are the flow
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transmitters installed here at the
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bottom.
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This is the back side. You can see these
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are the impulse lines coming from the
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RFI plate and to the transmitter.
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We have three different flow
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transmitters installed here on this
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single Rifice plate. Generally we use
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three flow transmitters uh when we have
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two out of three voting system such that
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these three flow transmitters measure
0:55
the same flow rate and based on the two
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outputs we will activate the interlock.
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You can see the Rifi plate clearly here.
1:06
On the top we have one tapping point
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set. That means one HP tapping point and
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one LP tapping point. At the same time
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at the bottom at both sides on the left
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side and on the right side we have again
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two different tapping point sets. Each
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tapping point have one isolation valve
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is provided so that if you want to do
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any maintenance. You can isolate the
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impulse line here. There is no need to
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disturb other two flow transmitters. In
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this case we have three tapping point
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sets. That means complete six tapping
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points means per each transmitter we
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have one HP tapping point and one LP
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tapping point.
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Each transmitter measures the same flow
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rate because uh each of these flow
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transmitters receives the same DP
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differential pressure created by the
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orifice plate.
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Let me know where you are using this
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type of setup in your industry. Comment
2:14
now if you have any questions share with
2:17
us through the comment section.
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Thank you. I will meet you in the next
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video.
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[Music]

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1 Orifice Plate with 3 Flow Transmitters | Instrumentation basics

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