Interested to Buy Any Domain ? << Click Here >> for more details...
Can we use a 10000 Lph Flow Transmitter in 100 LPH flow line
to get
20mA O/P by adjusting SPAN ?
- 1 Answers
- 4760 Views
- I also Faced
- E-Mail Answers
Answer Posted / carl_ellis
You can do whatever you want to with the span adjustment,
but what do you think the results are going to be?
10000:100 is a 100:1 turndown.
Which flow meter technology that uses an analog adjustable
20mA span has 100:1 turndown?
Which flow meter technology has a HART configurable URV with
a 100:1 turndown?
Flow meter accuracy curves ALWAYS bend exponentially upwards
towards increasing uncertainty as the flow approaches zero
low flow. The lower the flow, the greater uncertainty.
Where do you suppose 100 Lph is on the accuracy curve of a
meter designed for 10000 Lph?
Carl Ellis
Measure First
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What is the use of temprature compensation?
Sir,I am going to sit for IOCL written test exam. recently.Can anyone tell me the name of 'Objective type Question Book on Instrumentation Engineering ' which will help me. Pl. mail to bidyut_71@rediffmail.com / bidyut.saha2008@indiatimes.com / bidyut.saha09@yahoo.in
how can use ram
Basically iam Instruemntation Engineer, but Iam interested in Instruments design engineering, so plz guide, is there any course, training or Softwres to become Instrument design engineer??.
Definition of reverse and acting controllers:
how to relay switch sense the fault?
how can i calibrate the temperatuture gauge used by temperature bath(dry block) i mean step by step procedure?
Which type of diagphram use in costic line,DM water line,natural gas line,oil line?
what is o2 analyzer and how it measured ,what is the role of this analyzer in cfbc boiler...
what are procedure of sox-nox calibration
Who to difference between analog in & analog out in dcs?
Why not come out analog output in ABB EL3020 when display show correct value
you are on site,the plant trips,you are approached by operations,what do you do?
Why thermo wells are used? What materials are used in thermo wells?
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 =
