why using 4-20ma not using 0-20or why not using 1-
20ma???????
Answer Posted / kalpit thakkar
Instrument has own Load of 3mA. so we go for 4-20mA. & Also IEC Approved to 4-20 mA.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
CONTROL VALVE OPERATING IN MANUAL BUT NOT IN MANUAL. WHAT SHOULD BE THE PROBLEM ?
components of control circuit belongs to control valve
what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other
how the arrangement of equipments done in control room
How to calibrate Field bus transmitter? procedure ?
Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer
what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?
Capacitance, resistance ( colour coding ), parallel & series circuits.
is there any digitel grevity meter availaible in the market by which we can measure specific gravity of a battery?
The Design Calculation of Level Transmitter For Different Structure open & Closed Vessel, Eg. Diff. Level Tx., Capacitance For Continous Operation
how to check earthing,what is minum ohms for proper earthing
Hi,can anyone help me out with PhD programs related to Instrumentation field?I have a degree in electronic Instrumentation?
send me last 5 years questions asked in rrb chennai, for section engineer
hii my name is sujith...i am preparing for HPVL GET 2010... so ,,,pls help me by send any previous questions or material to my site.....(Msujith_12@in.com) thank q
what are procedure of sox-nox calibration