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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).

Answers were Sorted based on User's Feedback



A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / ghulam muhammad

413 deg and mA will be 14.64

Is This Answer Correct ?    11 Yes 1 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / arunkumar sandu

415 degree centigrade and ma is 15.4

Is This Answer Correct ?    0 Yes 0 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / raju

it should be 412.62 dc

Is This Answer Correct ?    0 Yes 0 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / ravi

mr ghulam mohammed can you plz give me full details for your
calculation.i mean the formulas.

Is This Answer Correct ?    0 Yes 0 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / srikanth

At -3000 rpm temp=60 ma=4
At 0 rpm temp=60+124.6=184.6 ma=9.46
At 5500 rpm temp= 60+353=413
ma=14.45
At 10000 rpm temp=60+540=600
ma=20

Is This Answer Correct ?    0 Yes 0 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / randy landicho

Temperature is 492 deg.;ma output= 14.46

Is This Answer Correct ?    0 Yes 1 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / kusito

Temperature = 109.5 deg; output = 7.3 mA9

Is This Answer Correct ?    0 Yes 3 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / raj

13.84mA and temp will be 392 deg c

Is This Answer Correct ?    0 Yes 4 No

A temperature sensor (RTD) connected via a temperature transmitter is adjusted to give an output of ..

Answer / sk

253.84 deg C (it is 5500/650*30)

Is This Answer Correct ?    1 Yes 6 No

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