ELECTRICAL MEASURING INSTRUMENTS

1. TYPES OF ELECTRICAL
MEASURING INSTRUMENTS

2. Objectives:
After1 hour discussion students should be able to:
1. Identify the different measuring instrument
2. Used the different measuring instrument
3. Perform mensuration and calculation.

3. Multimeter

4. Multimeters
are very useful test instruments. By
operating a multi-position switch on the
meter they can be quickly and easily set
to be a voltmeter, an ammeter or an
ohmmeter.

5. Clamp meter

6. Clamp meter
•Clamp meter is another type of
measuring instrument which is
specialized to measure the value of
electric current indirectly in an
electrical circuit. This can also be a
voltmeter, and an ohmmeter.

7. Electric meter

8. Electric meter
•Electric meter is an electrical device used
to record the amount of electrical energy
consumed by an appliance or electrical
system in a particular period of time

9. Insulation Tester (Megger)

10. Insulation Tester (Megger)
•Insulation tester (megger) is an electrical
measuring instrument intended to measure
the insulation resistance of electrical
conductor. It is particularly used to detect
the condition of the coil of an electric
motor.

11. Steel Rule

12. •The steel rule is considered to be the most
convenient size to carry around.
•This can be used to set calipers, dividers,
etc. and to take measurements where it is
not possible to make sure that the end of
the rule is even with the edge of the work.
Some workers refer steel rules as
"machinists scales."
Steel Rule

13. Metric Rule

14. •Metric rule is a tool used measure short
and long distances. It is very important
when performing a layout and
installation of electrical wiring fixture.
Metric Rule

15. Caliper Rule

16. •These tools are commonly used to measure
the diameter of a wires or thickness of steel
plates .
•It can also be used to measure the inner
distance of a hole.
Caliper Rule

17. Activity 1
Identifiying Electrical Measuring Tool

18. Activity sheet
Paper and pencil
Supplies and Materials

19. Tools and Equipment
Measuring tools

20. Draw the table below in your paper.
Write your description on this side Draw your illustration on this side
Steel Rule
Multimeter
Insulation Tester
Clamp meter
Vernier Caliper