Interested to Buy Any Domain ? << Click Here >> for more details...
What's the difference between cold loop test and hot loop test?
- 5 Answers
- 43651 Views
- I also Faced
- E-Mail Answers
Answer Posted / ravi
1.Cold Loop Check
This is an electrical continuity check to confirm wiring integrity from control panel's terminal block to the field instrument. Please note that field cabling starts from field instrument and goes through Junction boxes and marshaling cubicle to reach termianal blocks of the control panel
2.Hot loop check
After successful cold loop check, each I/O is subjected to hot loop check. In this testing entire loop functionality is checked by simulation of the signal with power up from DCS or PLC
1.Calibration range
2.Activation of inputs / outputs / Field switches / Solenoids
3.PLC/DCS register updates
4.SCADA updates
| Is This Answer Correct ? | 102 Yes | 2 No |
Post New Answer View All Answers
Q-Explain the different load conditions that will produced different offset which may or may not be acceptable to thhe control function
why any measurement made interms of pressure is more accurate ? to be more precise most of the flow velocity is made interms of pressure and it is accurate. what is the reason behind pressure measurement being accurate ?
Where Can i take a SPI INtools training in Mumbai? In Rolta India Ltd to whom I should approach regarding of SPI INtools Training?
What is difference between differential pressure & delta pressure?
What is force balance principle?
Identification of control valve parts.
how will you segregate the alarm levels in alarm management system during factory Acceptance Test
How can a d.p. Transmitter be calibrated?
How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?
Define the terms Accuracy, precission, Spam, process tolerance while doing calibration of an instrument? Explaini with an example?
send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com
What types of Instrumentation Related Questions can an Interviewer ask in a Telephonic Interview ?
What is Predictive Maintenance
what will the sending unit in the fuel gauge utilizes?
Why all the drains(Gland sealing,ESV,Casing inlet etc) are directly connected to the flash tank instead of hotwell of the condensor in the power plant? My Email Id:naba02222@gmail.com
