What is the difference between HMI and MMI?

16 Answers  

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Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 Answers  

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types of cable..? Use of every types of cable..?

0 Answers   Hindustan Zinc,

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what is the input to be given in digital flow meter during the the calibration time?

0 Answers   ONGC,

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where the use of direct action control valve?

2 Answers  

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Why is the length of cable layyed from RTD to temp. Transmitter should be minimum? Why does heating effect takes place in their?

1 Answers   Process Control Technologies,

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what is formula for calculating flow if i have pressure and pipe diameter?

1 Answers  

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Isometric drawings are generated during _________________ phase of a project

0 Answers  

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can any one help me to get bel probational engineers sample question papers. I have applied for it.

0 Answers  

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why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

0 Answers   Visa Steel,

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micromotion flow meter used for

3 Answers   Reliance,

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give me the formula for analog to digital converter and also d to a converter

0 Answers   ACC,

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