Interested to Buy Any Domain ? << Click Here >> for more details...
why we use 4-20 mA for calibration of the instruments.why
we cant use 0-20 mA?
- 5 Answers
- 10981 Views
- I also Faced
- E-Mail Answers
Answer Posted / naveen
Logically Zero milli amps means no current in the circuit .
if we have an initial value to be measured , we cant measure
it as zero milli amps . It means no current in the circuit
or the circuit is open . so we go for the span of 4 to 20 mA
. this is coz we can easily split 4- 20 as multiples of four
(4,8,12,16) which means 0%,25%,50%,75%and 100% respectively.
| Is This Answer Correct ? | 24 Yes | 4 No |
Post New Answer View All Answers
how can use ram
Why upper weighing limit of electronics balance is 90% of the total weighing capacity?
find the kp ki kd from the transper function G(S)=29.44s+04707/1.5349s2+s
1.what is the power consumption of three element drum level control in sugar industries? 2.how to reduce that?
what is the difference between Cv and air consumption? why the customer needs Air consumption details?
what is cems analyzer explain with principle and drawing ?
Explain how thw analog to digital converter works with the circuit diagram
key exchanges in wpa,wpa2,tls
Linear amplifier.
while am calibrating Drager polytron 2IR flame gas detector occured non zero status.how can i get zero status?
What are different types of orifice plates?
how to convert cubic metre per hour to newton cubic metre per hour
IN CONTROL VALVE SPECIFICATIONS GENERALLY TERM " DE- 200" ."DM -400"USED,, WHAT IS DE/ DM STANDS FOR?
How will you calibrate an Absolute Pr.Transmitter of range 400mmHg absolute ?
Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.
