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chhote lal


{ City } agra
< Country > india
* Profession * instrumrntation engg. (i&c)
User No # 48607
Total Questions Posted # 5
Total Answers Posted # 4

Total Answers Posted for My Questions # 11
Total Views for My Questions # 26250

Users Marked my Answers as Correct # 48
Users Marked my Answers as Wrong # 10
Questions / { chhote lal }
Questions Answers Category Views Company eMail

why we connect digital multimeter in series for dc current measurement and parallel for dc voltage measurement.

 4 Instrumentation 10907

why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

1 Electrical Engineering 2362

who's take first position in process in the timing of new installation flow transmitter and control vavle. give the answer with logical trick.

 3 Instrumentation 5365

how to calculate the phase diffrence beetween given two equetion  y= 15sin(wt+pi/3) and y=10sin(wt-pi/4)

 1 Electrical Engineering 3347

How to connect another 24 volt dc power supply in circuit when previous power supply has become weak.what is the connection?

Bhole Baba Dairy Industries,

2 Instrumentation 4269



Answers / { chhote lal }

Question { 11641 }

Tell me about PID Tuning and what is PID.


Answer

by the help of P we calculate the error signal
Error signal=SP-PV (How Much)in the timming of pid tunning.
By the help of I we Remove the offset error-it will decide
how long the error exit in the cycle inthe timming of pid
tunning.
And by the help od D we fasten the control action-it will
decide how fast the control action to remove the error
without any overshoot for failure cycle.
at last
P=How Much(present)
I=How Long(past)
D=How Fast(future)

Is This Answer Correct ?    9 Yes 0 No

Question { 27867 }

how we can calibrate level transmiiter in field?


Answer

it is a theortical calibration which done before mounted
Level Transmeter in the tank
suppose tank hieght is 10 meters
10 meter = 1000 cm
1000 cm = 10000mmwc
we know that 10000mmwc = 1kg/cm2
so we calibrate Level Transmitter 4mA at 0 kg/cm2(Air
Pressure)
and 20mA at 1kg/cm2 (Air pressure)
thus we calibrate Level transmitter

Is This Answer Correct ?    12 Yes 6 No


Question { 11425 }

What is the relationship between Sensor


Answer

We Know that any instruments have three parts
1-sensor
2-transmitter
3-reciever
where sensor taking actual mesurment of process
(temp,pressure,speed etc.)and convert to electrical signal.
and transmitter take o/p electrical signal of sensor and
transmit for reciever with amplitiude.

Is This Answer Correct ?    3 Yes 0 No

Question { 11444 }

what is the full formof HART


Answer

higway adressable remote transducer

Is This Answer Correct ?    24 Yes 4 No