4-20 mA Current Loop - History, Why, Advantages, Disadvantages

Learn about the 4-20 mA Loop Current basics, fundamentals, history, advantages, and disadvantages.
4-20 mA Transmitter Principle:
instrumentationtools.com/4-20...
PLC courses:
automationcommunity.com/
Video Topics ###
0:00 - Basics of 4 to 20 mA
0:38 - History of 4-20 mA Signals
1:57 - PLC Basics with 4 to 20 mA Transmitter
4:13 - Why do we use 4 to 20 mA Loop Current?
6:12 - Live Zero Advantage of 4-20 mA
7:47 - Why 4 mA?
9:10 - Why 20 mA?
9:36 - Linearity and 1:5 ratio
11:22 - Easy conversion from 4-20 mA to 1-5 volts
12:54 - Advantages of Current Signals
13:20 - Advantages of 4 to 20 mA Signals
13:50 - Disadvantages of 4-20 mA Signals
#4to20ma #Currentloop #4-20mA #instrumentation #instrumentationtools #automation #engineering #electricalengineering #industrialautomation #processcontrol #electrical

[@InstrumentationTools]

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[@diyaaprince2094]

It's so useful, thanks a lot for all these explanations.

[@zakariiarif8541]

Beautifully explained. Thank you

[@avidLii]

Very articulate , easily understandable clear, in-depth explanations. Thank you for sharing this invaluable basic useful information/knowledge

[@ParavaKerala]

Amazing Explanation. Thank you

[@6491fcruz]

Thanks. This was helpful and concise.

[@sateeshprathapani]

crystal clear.. thank you!

[@michaelsabatiii6052]

outstanding job explaining, thank u

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very clear and easy explanation thank you

[@sadmankhan3861]

It's really very easy to understand and very helpful good explanation. Thanks

[@florincheche163]

very well explained, it is understood by all 👍

[@mohammedAmady]

easy explanations
Thanks

[@adarisivasankargandhi5429]

Clear explanation Sir

[@waleedalmhram4198]

Amazing Explanation & Clarification.....Thanks, Alot

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Thanks for sharing !

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Really good information, thank you so much

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Excellent explanation

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Definitely professional video

[@sudhammikalaksiri1479]

This is a very usefull lession .
Thank you....very much

[@manojkumar4527]

Thanks for sharing

[@tariqfb8597]

Very good information, most of the instrumentation engineer don't know this basics. Thanks alot

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[@mtokkan]

One of the best I have ever seen. Great explanations.

[@adarisivasankargandhi5429]

Thank you so much

[@hakarengineer8321]

Excellent,thanks

[@HomeMadeBoards]

Great video, good format.

[@Enigma758]

13:52 In the twisted pair diagram, I think the blue arrows should alternately point up and down to indicate cancellation.

[@krishnarao9584]

Excellent

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Thanks for your wonderful teachings, please teach how to use DWIN screen for PLC

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Great
Your voice is clear❤️

[@saurabhdas3226]

Awesome explanation sir

[@maricristorres8448]

very informative

[@chiomaezeonye3538]

Very useful. I wish you could discuss more on what you mean that each pair of wire carries a single signal.

[@Yc0078]

Best explanation

[@rahmadaniki774]

thank you very much. many information I can get from this video.
by the way. what is the meaning of bias? please explain me. thanks in advance

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very useful, thanks

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Very informative

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Thank you sir

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Wonderful

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Thank u...

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Very interesting

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Thanks

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TQ very much

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[@vinayakjoshivp]

excellent explanation of each terms..........Do you have basic information of physical layer of HART signals

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Nice

[@amranhossain8514]

ধন্যবাদ / thanks

[@eslamelnbasy8226]

Excuse me ,i nees information about
4;20ma sinal spilleter
Disadvantage

[@tamilchelvanramasamy8733]

An awfully great exercise to impart understanding on current loop with lucid illustrations.

[@clarkyvessantolorin7587]

It's ok to take Ang reading a milliamps whale the machine is running or work .. tnx ❤️

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XLNT VIDEO

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What happened if we bypass an analog sensor by jumping out

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Have any pdf of pLC

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[@AS-by6cp]

I have a question.
If I had a 4-20mA signal terminating on an input with a 12 bit resolution, how many different measurements can I have within the 4/20mA range? Someone please let me know. Thanks

[@InstrumentationTools]

Check these related articles
instrumentationtools.com/analog-input-card-resolution-effects-on-accuracy/
instrumentationtools.com/plc-analog-input-conversion-formula/

[@himanshulohani3106]

We use idustrial pressure transducer which is 3 wire please explain to me how I use this transducer in nitrogen purging process

[@InstrumentationTools]

Check this article, may helpful.
instrumentationtools.com/4-20-ma-transmitter-wiring/

[@AliRaza7]

you should better explain about Hart protocol, how it works

[@barenstarkschaffer383]

Hello, i have a question. If we want to regulate the temperature inside a tank where the LRV is 40°C and URV is 140°C. Knowing that the output signal 4-20mA is, what will happen if the temperature drops below 40°C or rises above 140°C?
Will the transmitter send a signal or not? If yes his is this signal calculated?
Thanks

[@mska2095]

a) The "out of range" indication will be shown on faceplate of the tag.
b) Transmitter will be unable to send "out of range" signals. In case of thermocouple, signal will be received anyway.
c) Either recalibration of the transmitter will be required or increasing the span of the range will be required to accurately show the signal on the monitoring device.

[@user-vz5sn9st7m]

if I short the two wire, what will happen the loop?

[@InstrumentationTools]

Follow this link:
engineerscommunity.com/t/if-i-short-the-two-wire-what-will-happen-the-loop/37125

[@realomer]

So where's the loop?

[@random-kc8gx]

How many volts is the signal

[@InstrumentationTools]

Standard 24 volts DC. This voltage may be reduces when used for long distances.

[@keyvanpebdani7125]

How PSI or bar converted to mA??

[@frikkied2638]

Have to say this helped me zero % with how to actually wire up and use a 4-20mA sensor.

[@adeelyousuf8373]

I'm the master. Wanna learn with me. 14 years of beautiful experience in industry

[@sellapandiyanu5231]

Yes

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Wordy af

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Robotic voice made it unwatchable for me, shame.