Fluke Multimeter theory


Fluke Multimeter:

The fluke Multimeters are protected against the transient voltage. It is a small portable device used to measure voltage, current and test diodes. The multi meter has multi selectors to select the desired function. The fluke MM automatically ranges to select most measurements. This means the magnitude of the signal does not have to be known or determined to take an accurate reading, it directly moved to the appropriate port for the desired measurement. The fuse is protected to prevent the damage, if connected to wrong port.
MUHAMMAD NAEEM
ABA ENGINEERING

Comments

Post a Comment

Popular posts from this blog

AIR CIRCUIT BREAKER AND PARTS

Image
AIR CIRCUIT BREAKER  ① Front cover ② Arc extinguish chamber ③ Control circuit terminal ④ Electronic trip relay ⑤ Counte ⑥ Closing button ⑦ Charging handle ⑧ Name plate ⑨ Caution mark ⑩ position indicator ⑪ Pushing/Drawing lever hole ⑫ Charging indicator ⑬ Extension rail ⑭ Trip button ⑮ ON/OFF indicator (16) Draw-out profile (17) Main body profile (18) Handle MUHAMMAD NAEEM ABA ENGINEERING
Read more

WORKING OF SERVOMOTOR AND CONTROL

Image
Working of servomotors :                                      Servo motors control position and speed very precisely. Now a potentiometer can sense the mechanical position of the shaft. Hence it couples with the motor shaft through gears. The current position of the shaft is converted into electrical signal by potentiometer, and is compared with the command input signal. In modern servo motors, electronic encoders or sensors sense the position of the shaft . We give command input according to the position of shaft . If the feedback signal differs from the given input, an error signal alerts the user. We amplify this error signal and apply as the input to the motor, hence the motor rotates. And when the shaft reaches to the require position , error signal become zero , and hence the motor stays standstill holding the position. The command input is in form of electrical puls...
Read more

HISTORY OF PLC PROGRAMMING

Image
            HISTORY OF PLC PROGRAMMING History Industrial automation began long before PLCs. In the early to mid 1900s, automation was usually done using complicated electromechanical relay circuits. However, the amount of relays, wires and space needed to create even simple automation was problematic. Thousands of relays could be necessary to automate a simple factory process! And if something in the logical circuit needed to be changed? Oh boy! NOTE: On a basic level, electromechanical relays function by magnetically opening or closing their electrical contacts when the coil of the relay is energized. The are very useful devices and still play a major role in industrial automation (for a more in-depth lesson on electromechanical relays check out this  post ). In 1968 the first programmable logic controller came along to replace complicated relay circuitry in industrial plants. The PLC was designed to be easily programmable by plant eng...
Read more