Page 120 - CITS - Electrician - Trade Practical

ELECTRICIAN - CITS

7 Take the multi meter and check its range of voltage, current, resistance and other parameters.

8 Measure the resistance of rheostat, continuity of coil, supply voltage and current in the circuit with multi meter.
Table for details of Basic Electrical meter
Sl.No Name of the meter Symbol Connection Application
Type

1 Ammeter In series with load Ammeter is used to measure
only the current
2 Voltmeter In parallel with supply Voltmeter is used to
OR load measure the voltage
3 Wattmeter Series & parallel with Wattmeter is used to
load & supply measure the power
4 Frequency meter In parallel with supply It is used measure supply
frequency
5 PF meter Series & parallel with It is used to measure power
load & supply factor in AC
6 Multi meter Series & parallel with It is used to measure
load & supply voltage, current, resistance,
continuity etc

Safety precautions:
1 Handle carefully and do not drop the Electrical meters.

2 Never connect the ammeter in parallel.
3 Check the current & voltage range of meters before connecting to supply.
4 Always set the multi meter at high voltage range while testing AC supply.

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CITS : Power - Electrician & Wireman - Exercise 50