Interested to Buy Any Domain ? << Click Here >> for more details...
WHAT IS A SYMPTOM OF FAULT WITH THE SPAN OF AN INSTRUMENT?
1)ZERO-POINT AND 100% ARE CORRECT BUT NOT A MID-RANGE.
2)ZERO-POINT IS CORRECT ,BUT 1005 INPUT IS NOT GIVING 100%
OUTPUT.
3)LINEARITY PRBS.
4)1005 O/p IS CORRECT BUT ZEO POINT IS WRONG.
- 1 Answers
- 11977 Views
- Reliance, I also Faced
- E-Mail Answers
Answer Posted / carl_ellis
WHAT IS A SYMPTOM OF FAULT WITH THE SPAN OF AN INSTRUMENT?
1)ZERO-POINT AND 100% ARE CORRECT BUT NOT A MID-RANGE.
2)ZERO-POINT IS CORRECT ,BUT 1005 INPUT IS NOT GIVING 100%
OUTPUT. 3)LINEARITY PRBS. 4)1005 O/p IS CORRECT BUT ZEO
POINT IS WRONG.
The correct answer is 2, but number 4 also requires a span
correction.
1) The "Zero-point and 100% are correct, but not a
mid-range value" problem is a linearity problem.
2) The "Zero-point is correct, but 100% input is not giving
100% output" is a span problem.
4) The "100% output is correct but zero point is wrong" is
a zero offset AND a span problem because when the zero point
is corrected with the addition of a bias/offset, the 100%
point will shift up or down the same amount as the zero
shifted with the bias/offset correction. So the 100% point
will no longer be correct once the zero is corrected.
Hence, the zero AND the span will need to be corrected.
Carl Ellis
Measure First
| Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
Why we are using DPT(Differential Pressure Transmitter) in separator instead of level trasmitter?
send me last 5 years questions asked in rrb chennai, for section engineer
how to design orifice plate?what is the equation?
Coal mill Instruments Equipments for cement plant And process diagram ?
Where are oxygen analysers installed in cfbc boilers? What are their usual readings?
What is the main difference between Cavitation and Flashing?
what should he know if he is an assitent engineer instrumentation in cement industries of experience of 10 - 15 year.
how works encoder in plc
what is a good line as ic engineer as maintenance ,oc, project, calibration ,validation engineer?
i hav applied for the post of engg. in iocl so please require the past test papers fro instrumentation engg please please help me and send me the papers or tell me the pattern and type of ques asked in examination......
Give 2 application of quartz crystal used for process parameter measurement.
what is compensation? temprature & pressure
ORP sensor working principle?
What are primary elements of measuring pressure? Which type of pressure can be measured by these elements?
In apron feeder how TPH is calculated?
