Draw symbols of the following :

0 Answers   CCIE,

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how can we calibrate RADAR LEVEL transmitter 0% to 100%

3 Answers   Chevron Phillips, Honeywell,

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

0 Answers   Gasco,

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HELLO FRIENDS plz tell me which are the PROTOCOLS we are using in PLC

3 Answers  

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plz send me general of ongc

0 Answers   ONGC,

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I have flow transmiter DP range is 0 to 5000mmwc,(convert) Display to be show in m3/Hr.

3 Answers   Orient,

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1)What is the suitable MOC for flow meters working at temperature between 200 - 250 cen. 2)In which application the mass flow meters are not advisable 3)Is it advisable to use radiation type or radar type instrument for non contact application

1 Answers  

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can we control operation of PLC from operator station?

3 Answers  

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Difine flashing , Cavitaion & Noise? how to minimize these effects

3 Answers   L&T,

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1,why we use 4-20 ma output of all instrument qhy not use 0- 20, 2,what is the different between PLC & DCS. 3,how can we meaure maximum span of new flowmeter if not given any information.

4 Answers   Reliance,

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can u please tell me the different types of valve uses and wt purposes it is used ~!(controlling the flow other than that which valve should be used in what place)

2 Answers  

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Why we use 4 - 20 ma?

6 Answers   IJT, ONGC,

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