Answer Posted / ranjan
DPT means differential pressure Transmitter.
As name says it measure difference in pressure between two different points. So, say for example if an action is to be taken depending upon the pressure difference between these two areas (delta P), DPT only can be used not PT.
PT only measures live pressure.
| Is This Answer Correct ? | 26 Yes | 3 No |
Post New Answer View All Answers
Specific gravity.
Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com
why using negative supply for bentley nevada vibration system ?
Why even multiple power supplu r used in instrumentation system?
What are continuances of connecting earthing and shield of branch cables (instrument to Junction box), at the same earthing pot provided on JB? Is it ok, or may produce some problem?
How to Calibrate Ultrasonic Level Transmitter in field
Why trim span ? How?
Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =
Explain the burnout feature.
What is zone,loop/fire alarm system?
Boolean algebra
why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.
What is difference between ESD and PLC please Explain me clearly.
steps for installing orifice plate?
Which language of programing is popular? how can i learn it ?