Answer / zaiwar ali

when we increase the input of an instrument it gives some
output readings (follow a curve), now if we decrease the
same input and it gives different readings (follow another
curve) then this effect of instrument is called hysteresis.

Answer / sahnis

The delay between the action and reaction of a measuring
instrument.

Answer / luman

An instrument error that causes a difference in the readings
of an instrument when the indicated values are increasing,
compared with the readings at the same point when the values
are decreasing. Hysteresis error is caused by internal
friction in the instrument mechanism.

Answer / hamza zia

The non-coincidence between loading and unloading curves is called Hysteresis.

Answer / sahnis

The delay between the action and reaction of a measuring
instrument.

Answer / abdul wasid

The characteristics of an instrument that give the algebraic difference between the average results at corresponding points of measurement when approached from opposite directions.

Answer / maroon janakiraman.k

The difference between set value(action to taken) and pivot value(actual value in the reading) in the controller.

Answer / sajid

The Non-coincidence between these loading and unloading curve is know as hysteresis.

Answer / rinny

The characteristic loop we find when the instrument is calibrated first in one direction and then in the other..this is caused by friction or backlash

Answer / g.ramesh

the difference value b/w the set and reset value of the
controller is called as hysteresis

if temperature transmitter is showing wran. sensor 2 fail how can you remove from the transmitter display m/n.3144p rosemount

3 Answers   Baumer,

What is the exact differences between HART,FOUNDATION FIELDBUS,PROFIBUS?

0 Answers   Jubilant,

I have a Control VAlve having size of 2 ".Only the known parameter is Pressure drop . Its 2 Kg. Then How to calculate control valve sizing means Cv.

0 Answers   JSW,

Explain the difference between mmwc and mmwg?

0 Answers  

How to gennerate earth leakage monitoring alarm for solenoid valves in control system?

2 Answers  

how many types of sensor in instrumentation

3 Answers   SRACO,

if we open the inlet of an air regulator ,how it will affect the out put of regulator? (out put of regulator is using to operate an on-off valve.it is an air to open valve,and valve is in open position.my doubt is air regulator will hold the valve in open or not,if there is no consumption or leak in regulator out put side ,we only loose the input pressure.)

4 Answers   Asian Paints,

I want to measure flow by using DP Tx and range is 0 to 1200 Kg/cm2 ?

2 Answers  

use of split range ? where it is used ? in which control loop it is used ?

0 Answers  

in DCS or PLC we can not put all ai or di,there is calculation through which we can accomodate certain no of digital and analog signal.I need to know that calculation

1 Answers  

what is vfd(variable frequency drive)?type of vfd.

2 Answers  

The DCS has the following signal type:

3 Answers