The document discusses several types of electrical measuring instruments: multimeters, which can measure voltage, current, and resistance; clamp meters, which indirectly measure current in a circuit; electric meters, which record energy consumption over time; insulation testers, which measure insulation resistance; steel rules for measurements; metric rules for layout and installation; and caliper rules for measuring diameters and thicknesses. It also includes activities for identifying electrical measuring tools.

1. TYPES OF ELECTRICAL
MEASURING INSTRUMENTS

2. Multimeter

3. 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.

4. Clamp meter

5. 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.

6. Electric meter

7. 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

8. Insulation Tester (Megger)

9. 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.

10. Steel Rule

11. • 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

12. Metric Rule

13. •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

14. Caliper Rule

15. •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

16. Activity 1
Identifiying Electrical Measuring Tool

17. Activity sheet
Paper and pencil
Supplies and Materials

18. Tools and Equipment
Measuring tools

19. Write your description on this side Draw your illustration on this side
Steel Rule
Multimeter
Insulation Tester
Clamp meter
Vernier Caliper