Monday, October 22, 2012

Reading Analogue Multimeter

Reading the analogue multimeter is a necessary skill for aircraft engineer. Unfortunately the EASA syllabus is arranged in such a way that the learning about multimeter is covered in module 7. However students are expected to be able to use the meter as the earlier modules, such as module 3 and 4 require the use of meter for testings. Example module 3. 9, test of capacitor and module 4. 1, the test for diode.

I had located the site to learn about multimeter. Please follow the link to:
http://www.tequipment.net/pdf/velleman/velleman_avm360_manual.pdf

The area of knowledge to be covered in the use of the meter.
Although it is not stated that the students need to know the working of the meter, I do cover it in order to bring the understanding of the usage of the meter.
a. Construction of the meter.
b. The changes and connections needed to make it reads current, voltage and resistance.
c. The names of the different parts and scales.
d. How to use it to read DC voltage and Current, AC voltage and resistance.
e. The different between Digital and analogue meter.

Take note: for ampere and voltage readings, 0 is on the left and maximum is on the right. However for resistance (ohms) , 0 is on the right and maximum is on the left. Why?. As a student of aircraft maintenance license, you should be able to explain why.
There are three connecting terminals. Many students are wondering about output terminal. The purpose is to measure AC Voltage, when the AV voltage is superimposed on DC.

No comments:

Post a Comment