what is mean by hot loop and cold loop testing, whts
different between both
Answer Posted / mrmk
Cold Loop checking: Checking of wires continuity of
respective field instrument-Junction box-DCS/PLC
marshalling panel terminal.
Hot loop checking: Once you powerup your field instrument
through DCS/PLC system, by stimulating process input from
respective field instrument and cross check its responce at
DCS/PLC sytsem
| Is This Answer Correct ? | 156 Yes | 6 No |
Post New Answer View All Answers
What is the PLC configuration in Cement industry?
What is profibus?
what is effect of specific gravity in differential level transmitter , explain formula related with this .
What is the purpose of the analyzer in petrochemical plant?
The Design Calculation of Level Transmitter For Different Structure open & Closed Vessel, Eg. Diff. Level Tx., Capacitance For Continous Operation
please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...
What is three element drum level control system why its better than single element?
any body please send me the old question papers of ongc test.
Why does a pressure gauge installed on reactor, doesn't have any vent line below to release the pressure? Is it any kind of designing mistake or it actually does not require any vent line? And if it does not require any vent line below it then how we are gonna release the pressure built inside the pressure gauge?
what is insdustrial vibration.who it works. give atleast 2 types of insdustrial vibration
2. What is ultrasonic flowmeter?
What is first echo & echo window in radar type level transmitter?
How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?
How r the calculation of process line mpm.
I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann