hello dear
i have faced problem in drum level transmitter.
the problem is when i engrize the meter meter shows 100%
but the actual level 40 or something plz suggest me
- 7 Answers
- 8299 Views
- I also Faced
- E-Mail Answers
Answer Posted / yomama
The impulse tubes must be filled with process fluid or fill
fluid such as glycol. Additionally the specific gravity of
the fill fluid must be calculated in reference to the
process fluid being measured
Glycerin (Specific Gravity=1.26) for the impulse tubes a
correction must be made.
DP span of 100”= physical height difference of impulse tubes
on vessel
SG of fluid being measured (Oil = 0.68)
Glycerin filled tubes (SG = 1.26)
Since the Low Pressure Leg will be filled with Glycerin we
multiply the span by the SG of the Fill Fluid
100” x 1.26 = 126” so the Lower Range value will be -126”
Span will be the LRV – (SG of fluid) x ( tank Level span) = 68”
-126” + 68” = -58”
-126 LRV
-58 URV
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
describe flow nozzel principle?
Explain working principle of lvdt?
what is the PC interface and software for connection to ABB logic module “ LM011-CE18RAC “ ( for Programming ) ??
What is the calibration procedure of Drum level transmitter if range is 0 to -400 mmh2o in lab?
basic connection and principle of axial shift sensor n differential sensors in tubine describes n draw......
Explain bernoulli’s theorem. State its application.
Working principle of magnetic flow meter ......and calibration procedure of e+h magnetic flowmeter...
where cascade loop use ?
What is shielding effect?
What is eddy current? Describe the operating principle of proximity probe.
what is 24vdc live and dry supply
what is the input to be given in digital flow meter during the the calibration time?
If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?
I will attend an interview with GasGas company for a position of Instrument Technician ( Offshore )in next month can anyone tell me what questions they will ask. Thanks in advance.
What is hp & mp seperator .& what is its working principle ?
