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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
|How does the "as-built" function benefit plant
|how to calibrate temprature switch and flow switch ?
|what is the diffrence between plc&dcs
|what is the main supply source for pressure transmitter?
|I have observed in field instrumentation work... I remove
the fuse of an analog transmitter then it shows 7.75 kg/sq
cm (which is practically wrong value)in DCS and when put
the fuse it shows 0 in dcs. Then cheach the field
transmitter termination and found moister. clean that and
then it shows 1.1 kg/ sq cm which is right value. Please
describe the above phenomenon.
|We have ZR22G-100-S-A-E-T-T--E-A/CV/F1 Model Zirconia
Oxygen analyser which is Yokogawa make. I kept the analyser
in Flue gas path at Air pre heater area. My plant is 7.5MW
Biomass power plant. For a particular fuel, Coconut Husk
which contains Sodium and Potassium chlorides iam not
getting proper reading, Analyser output always Zero. I
calibrated the analyser and it is OK. For Other fuels like
Wood chips, Cholam waste, DOB, Groundnutshells, Ply wood
waste and all iam getting actual percentage of Oxygen. What
is the main reason behind this draw back?
|Level in tank under vacuum (Ex: Condensate Tank of Power
Plant)is measured using D. P. type level transmitter. Tank
is subjected to vacuum of 755mmHg. Is it possible to fill
wet leg ( i.e. leg connected to top of vessel with low
point of D. P. xmtr) with water?. Are there chances of
water getting sucked under vacuum? if yes, what is the
|How much should be the values and/or percentages of these
given below factors for a good controller ?
Steady state error
Oscillations & vibrations
|How to find out turn down ratio of Pressure transmitter?
|What is the working principle of Dozing valve used in
capacitance type level
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