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In power plant to measure vibration of a turbine we install sensors. Before install this sensor we have to set gap voltage. What is meant by gap voltage and its use?
2133What is the detail function of I/O card in DCS ? Why we dont use the I/O directly with controller?
3 15905I 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.
1 4498What is compensation for flow ? Why we use compensation ? What are the factors of different compensation ? We not use then what problems may happen ?
2039In most process, speed of motor controlled by control system with a reference pot . Now if i start & it becomes uncontrollable, i.e.gets directly start & stop after certain time.Then which reasons can make such problem? can motor may be faulty?how?
3 6346IS there any effect of vortex in low pressure side of the transmiter after the orific in feed water line? if yes then what is the calculation?
2455Post New Instrumentation Questions
why we are using magnet for calibration of gas detector?
Instrumentation symbols interpration, P& ID, Logic diagram analysis, Electrical drawing analysis.
What is stripper & spilitter ? Diffrence in this.?
How flow can be measured with dp?
What is the use of each wire in three wire RTD
Specify for Cables - Flame Retardant and Fire Resistant?
plz tell me clearly about PID.."when v have to change I value,D value,GAIN??
how to calculate signal cable sizing? and multipair cable sizing??explain in brief?
what is dc moter.
Which type of diagphram use in costic line,DM water line,natural gas line,oil line?
How to calibrate an pressure gauge with yantrika test bench?
dear friends, i have seen flow as the selection critriea in presure guage (bourdon tube) and i would like to know what is the relation between flow and performance of pressure guage other parameters i found in the data sheet are pressure max. 1ksc temperature max. - 50 deg c line size - 80NB operating range - 1ksc pr. guage range - 0-2 ksc thank u,
How ejector(or)evactor air pump is working in thermal power plant?
How to calibrate smoke Dectector
need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate
