Yokogawa dcs normally where will change 4-20 MA to DC voltage( node or I/o cards?)
on which principle control valve works?
what is isolation Transformer???...
Can anyone say that formula of Converting the Diff. Pressure into Flow in Kg/Cm2 or any explaniation of Orifice Plate, Beta Ratio , How to calculate
HOW DPT WORKS?
What is upsampling and downsampling?
what is the function of a diaphragm?
How much Resistance Show by RTD(PT100) when it is installed in process(Consider Process Fluid temp 29 Deg C)?
I work on a electronic positioner transmitter 4211 at the field.I connect my multimeter in series to get the current output then I calibrate it to 4ma in 0% of position of the valve and 20ma in 100% position of the valve.My problem is in the field I get the correct output current based on my multimeter but in the dcs they only receive 40% in a output 20ma of this positioner.Then I try to simulate in this analog card and they receive the equivalent percent on the value that I simulated.Is ther any possibility to reset the zero and span of this positioner 4211 fisher.And what other possibility I can do to fixed this.This is my email add ( landicho_randy@yahoo.com )
why we use -ve voltages in vibration prob?
Specify for Cables - Flame Retardant and Fire Resistant?
Controller not working in auto mode?...what are the problem can occur...Pls explain
Boiler flame scanner advantage?
0 Answers Fluke, Petrochemicals, Tata Chemicals,
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