Convert 4-20Ma To 1-5V
Convert 4-20Ma To 1-5V. I am using pwm but its output 0v or 5v depending upon the duty cycle. Extract value using adc and save data in modbus registers.
Extract value using adc and save data in modbus registers. And y = 0 to 4000 (12 bit adc), diff is 4000. So you need a gain of 5/ 5.28 = 0.947.
20Ma Wiht 250R = 5V.
And y = 0 to 4000 (12 bit adc), diff is 4000. I was thinking that this will need some adjustment for zero(4ma) and span(20ma). The output signal can be directly connected to the ad converter.
I Have Attached The Circuit Which I Am Referring To.
Any help would be greatly appreciated due to my very basic knowledge of electronics my email address is smo_uk (at) hotmail.com. Website tokopedia memerlukan javascript untuk dapat ditampilkan. Free shipping, arrives by wed, jul 20 to.
Can I Get This Design.
.1uf capacitor across the 250r. 5.1v zener is a good idea. The formula used for this is :
I Am Using Pwm But Its Output 0V Or 5V Depending Upon The Duty Cycle.
It can convert dc signal output from dsp, sensor. With the circuit restored, you can see the ammeter is still indicating the same current as it did before we inserted a resistor. You can do this scaling in a simple way.
The Embedded Processor Inside The Transmitter Will.
No demand therefore high price. Provide 20ma current signal input,then regulate the potentiometer. Using a 330ohm resistor in series, you will get 330 x 0.004 = 1.32v, and 330 x 0.020 = 6.6v.
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