How much voltage we get between two wire of 4 to 20 ma
output? Is this voltage up or down respectvice to 4 - 20
ma ?
Answers were Sorted based on User's Feedback
Answer / kiran
normally you gets 24-30VDC diretly connecting the volt
multimeter acroos it.
Also depends on the connecting the load resistance across
it.
E,g. When you are connected the 250 ohm load across it then
you get 1-5 volt or for 500 ohm 1-10 volt up & dowm
respective 4-20mA.
Is This Answer Correct ? | 23 Yes | 4 No |
Answer / srinivasansureshkumar
yes, it is.
Better to verify transmitter power Vs load Graph.(TX
manufacturer Manual)
you will understand a lot about the question related then
just understanding the 4~20 ma in normal condition.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / ajay ugale
if we r using 250ohm resistor in parallel with the signal
we will get 1-5Volt DC i.e at 4ma we will get 1 volt and at
20 ma we will get 5 Volt.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / sathish kumar
It depends on the resistor. For 4-20mA o/p 200ohm resistor
wants to use. For 4mA o/p is 0.8V and 20mA o/p is 4V. It it
exceeds 4.4V means it will be short cicuit. To avoid these
problem zener diode will be use across the resistor for to
protect the system.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / karthick
Transmitter required 5V for display the parameter
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / sagar
Between two wire of 4 to 20ma signal always we get 24 valts...there will minor change in it during 4 to 20
ma variation..
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / mail2noor.hyd
voltage is 0-10V
transmitter i/p supply (source) -24V
o/p -4-20mA/0-10V
we prefeered always current i.e 4-20mA,
b coz voltage travel a long
distance voltage will drop, so thats y we preffered
current i.e 4-20mA
voltage is 0-10V
from mail2noor.hyd@gmail.com
Is This Answer Correct ? | 0 Yes | 3 No |
What is diffrence between Transducer and Transmitter?
State four different types of flow measurement, for gas flow measurement MMSCFD is the common unit expand the unit and specify significance of word S in the unit.
In instrumentation standard we use 4 to 20ma for transmission , why cant we use 3 to 19ma ?
How to Calibrate Ultrasonic flow Transmitter in Field
What is difference between differential pressure & delta pressure?
how the presure switches are calibrated? and what happen inside?
how to calculate flow by dp transmitter?
How can you convert an SR Flip-flop to a JK Flip-flop?
components of control circuit belongs to control valve
is any standard angle for thermowell mounting for horizontal and vertical pipe lines?
What is intrinsically safe system?
Give me a simple formula to calculate the bore of orifice plate with datas avilable instead of BS 1040.I want to calculate the approximate bore size only.