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).
the whole paper was based on Transducers..questions like
define repeatability, error,accuracy,precision..den there
were many q. on the conversion of Pa to mmHg and other
also..der wer few Q. on some level sensors(with diagram)
HOW TO SOLVE PROBLEM WITH ENRAF LEVEL TRANSMITTER 854 ATG
THAT PASSWARD DO NOT Exist INTO TRANSMITTER TO ADJUST LEVEL
WITH PORTABLE PET 847, WRITTEN WRONG PASSWORD , I AM SURE
THAT DEFAULT PASSWARD (W2=ENRAF2)
IS THIS TRANSMITTER NEED TO REPLACE SOFTWARE AND HOW?