HOW TO CALCULATE WAKE FREQUENCY FOR THERMOWELL???WITH OUT SOFTWARE..

1 Answers  

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can we control operation of PLC from operator station?

3 Answers  

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Define the terms Accuracy, precission, Spam, process tolerance while doing calibration of an instrument? Explaini with an example?

0 Answers   AquaTech,

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What is the cascade control

0 Answers  

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If I want to buy a pressure switch & 3-way valve for hot water application then witch parameter I should consider.

1 Answers  

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what are the pinciples & units of flow, level, temperature, pressure, quality.

1 Answers  

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what is a mapping in plc & dcs

1 Answers   Arctern, ARM Cement,

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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 )

4 Answers  

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How many types of sensor

0 Answers   Petro Rabigh,

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how we will install a positioner ?

2 Answers   Descon,

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Can we place a Control Panel in Hazardous area Group IIC ? If 'yes' then is there any approval required? If 'yes' then there is any specific IP rating or any standard required? If 'Yes' What is MOC of control panel?

2 Answers  

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what is pico fuse? how this different rom othe fuses and how to locate it inside the card?

1 Answers  

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