1. Electronic test Instrument
CHAPTER 2
Electronic test Instrument

2. OBJECTIVES
Identify the different types of electronic Test Instruments;
Describe each type of electronic Test Instrument.
Demonstrate on how to properly use each electronic instrument.

3. MULTI-TESTER
The multi-tester or Multi-meter is a sometimes called VOM(Voltmeter, Ohmmeter, Milliammeter) is the best instrument that can measure voltage, resistance, and current.

4. TWO GENERAL TYPES OF MULTI-TESTER
ANALOG MULTI-TESTER
DIGITAL MULTI-TESTER

5. MULTI TESTER
ANALOG MULTI-TESTER – Has a moving coil assembly which is characterized by a needle pointer.

6. ANALOG MULTI-TESTER POINTER SCALE ZERO POINTER OHM ADJUSTER ADJUSTER
SELECTOR

7. ALTERNATING CURRENT
DIRECT CURRENT
DIRECT CURRENT
AMPERE
RESISTANCE

8. DIGITAL MULTI TESTER
PIN/PROBE

9. GAME PLAY

10. MATERIALS ANALOG/DIGITAL Multi-Tester COMPUTER POWER SUPPLY
BATTERY CHARGERS/BATTERY
AUTOMATIC VOLTAGE REGULATOR
RESISTORS

11. MECHANICS
There are 4 game activities namely, Reading of Resistance, Alternating Current, Direct Current and Milliampere.
Each game activity has a corresponding points.
Each group should select 3 participants per game activity.
The highest group who will earned the highest total points is free to leave the room after the class as a reward, While the group who earned the lowest will clean and arrange the room as a punishment.

12. GROUP TEAMS
APL
LEA
SARAH
BAMBOO

13. TEAM SCORES TEAMS RESITANCE DIRECT CURRENT TOTAL RANK APL LEA SARAH
ALTERNATING CURRENT
DIRECT CURRENT
TOTAL
RANK
APL
LEA
SARAH
BAMBOO 1

14. OTHER TYPES OF TESTER GALVANOMETER
Are the basic components of many power and current meters.

15. WHEATSTONE BRIDGE
Is a resistance measuring device. This particular instrument measures resistance values from 1Ohms to Ohms

16. OSCILLOSCOPE
A unique instrument designed to graphically time varying voltage and current values.

17. WATTMETER
A meter that indicates real power.

18. THERMOCOUPLE AMMETER
Consist of DC moving coil meter connected across the junction of a thermocouple.

19. ELECTROSTATIC VOLTMETER
Constructed in the form a variable capacitor consisting of a pair of reading and stationary plate.

20. HOTWIRE AMMETER
It consist of a spring connected to a resistance wire in which current passes through.