while am calibrating Drager polytron 2IR flame gas detector occured non zero status.how can i get zero status?

2209

1.can you use SCADA instead of DCS,DCS instead SCADA 2.Difference between DCS and PLC,can their role be reversed i.e. role interchange 3.Difference between RTU and PLC

2597

hello can yoy pls send me previous papers of jindalpower and steel ltd.....'m from instrumentation..... mani1048@gmail.com

1999

Which type of diagphram use in costic line,DM water line,natural gas line,oil line?

3919

installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,

2127

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

1319

what effects a surging can produce in the compressor

1918

How to convert mmWc(mili meter water colam) to tph(ton per hour)?

981

Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?

1167

What is feed factor and its Importance in cement industry? How we can solve feed factor?.

3607

Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...

2346

Drum level tx with GP4 with zero elevation:7300mmh20 on HP and 8050mmh2o on LP as range but on commissioning the tx readiing is max,Why this reading?

1933

dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

1894

What is the use of each wire in three wire RTD

2506

What is Droop? What is Step/Gradient Limiter in Turbine Governor control?

3402