If an Instrument has 550 ohm internal resistance and the
cable used for that instrument is 0.5 ohm per meter
resistance. If the voltage is 12volt.How much length cable
can be used? Please tell me its Calculation formula.
Answer Posted / c heman
Assume it is a 4-20 ma tx. 20ma*550= 11volts. minimum
supply is required. so allowable voltage drop is only 1
volt.
so max. 100meter u can use.
got the answer, don,t foget to say thanks.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus
why we are using digital signals for I/O & how to measure this signals is getting or not ?
Difference between ultra sonic flow meter
how to commission furnace ( water heater)
how to work static pressure sensore how to work dpt
flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty
What is intrinsic safety mean.
why we r opening HOT BYPASS valve during startup of a compressor?
how to measure draft pressure in transmitter pl. give its single line digram
give me the formula for analog to digital converter and also d to a converter
Hello to all....I am an Instrumentation Graduate and i am passed out in this year only.. I am unable to find the job in my core instrumentation.. so any boby tell me how to and where to search the job....please...and also tell me i there are any courses offered in the instrumentation stream so i can do it... you can send your suggestions to my mail-id i.e Ganesh20084u@gmail.com ... please..
what is the process to make control schematic ?
WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.
Draw a complete P&ID of a flow suction tank indicating all control & protection equipment. Indicate all its inlets and outlets. Explain the controls for this system
what is actual drum level and compensated drum level?