Working principle capacitance type level transmitter

3 Answers  

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What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus

0 Answers   EIT,

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what is the operation philosophy of proximity velocity sensor

1 Answers  

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What is Integral and Derivative control?

5 Answers   Qatar Petroleums,

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what is use of communication wire in multipare cable(oil and gas field), why this communication wire not used in single pair cable?

0 Answers  

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what is IPS (instrument protective system)?

2 Answers  

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What's the difference between cold loop test and hot loop test?

5 Answers  

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A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of 4ma at 60 deg and 20 ma at 600 deg. This output (4-20ma) from the transmitter is connected to an IGBT-inverter to control a high speed (-12,000 to +12,000 RPM) DC motor. And in the inverter it is programmed as, for 4ma the motor speed will be -3,000 RPM and for 20ma the motor speed will be +10,000 RPM. The question is : If the motor speed is +5,500 (RPM), what will be the temperature? (-sign indicates that the motion is in reverse direction).

9 Answers  

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what is the difference between transmitter and converters?

9 Answers   Videocon,

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what is solenoid valve?

1 Answers  

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How we calculate orifice plat size???

0 Answers  

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why we use 3 wire rtd direct wiring for temperature measurement instead of temperature transmitter like bearing temperature

0 Answers   ABG Energy,

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