Why we use 4 to 20 mA, (This is International Standard)
instaed of this can we use 4-16, or 4-24 or 3- 15 or any
other range
Answer Posted / rajesh.a
STANDARD VOLTAGE IS 1-5V DC,250OHM RESISTANCE
AT V=I*R
AT 1V=I*250OHM = 4MA
AT 5V=I*250 OHM = 20MA
SIMPLE CALCULATION
Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
What is offset in a control system.
can you provide me full detail about instrumentation in ONGC??
can u plz send me technical questions asked in SCHNEIDER ELECTRICAL technical paper?
How many interlocks at turbine side?
what is wave length were using ?
How to calibrate capillary type level transmitter
Explain bernoulli’s theorem. State its application.
how many types of viberation transmitter and how to calibrate and where use of vibration transmitter
how to tune siemens sipart electro pneumatic positioner..plz tel me..
centrifugal compressor interlock? Tell me the parameter at which compressor will trip
Can Any body tell me how to check Modbus Settings in ER300N L&T trivector meter?
how pressure transmitter work, what is its principal to measure and how its generate signal. for pressure transmitterinstallation which precautions must be taken ??
How many ohms are required for proper earthing?
what is droop in governer ,type of droop ,how it work
䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ