Answer / nikunj

Cryogenic means to work in lower temperature range (-50 and
below than that).

Nikunj

Answer / afsar mumtaz

very low temperature like liquid nitrogen and liquid helium
:-156 to -2560 degree.

why 4 to 20 ma used at 0 set

2 Answers   Borouge, Yokogawa,

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a flow transmitter [range-0-400mbar] connected in process line. please explain me how to calibrate the flow transmitter , & how to do static error

0 Answers   L&T,

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How do understand by hart protocol?

4 Answers   BW Instrumentation Electrical,

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

0 Answers   Jubilant,

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WHAT PRINCIPLE OF GAS ANALYSER( CO,CO2,N2)

2 Answers   Jubilant Organosys,

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how to make a calliberation for deffirential pressure

3 Answers  

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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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LADDER LOGIC Can any body state Logic on following condition Instructions to use 1-XIC 2-XIO 3-Output ONLY Program Push 1st button On - 1st lamp should On Then Push 1st button Off - 1st Lamp Should remain on Push 2nd button On - 1st lamp should Off and 2nd lamp should On Then Push 2nd button Off - 2nd Lamp Should remain on.

4 Answers  

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why 4-20 mA in covection system?

3 Answers  

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What is the procedure of changing a Faulty Module of Allen Bradley PlC without stopping the Process

1 Answers   Siemens,

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capillary type tranmitter using remote seals and capillary tubes filled with liquid of known of known density so if you wanna callibrate it just close block valve just before capilary @ high side & connect druck apply it's calibrated range pressure as normal calibration ensure low side block valve must be closed & if you asking commissioning so this is not a DP type pressure tx so simple if you wanna put in servie this tx just open high side block valve & than low side block same way i do it but still transmitter showing -13 ma.just tell me what i want to do ?

1 Answers   Gasco,

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why most of the DP transmitters using maximum range as 0-2500mmwc?why not 1000 2000 3000 4000mmwc

2 Answers   SPIC, TNPL,

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