Indicating, Intergrating and Recording Instruments
Measuring instruments (i.e. secondary
instruments) may be classified according to their function as:
1. Indicating instruments
2. Integrating instruments
3. Recording instruments
1. Indicating instruments: “Indicating instruments
are those which indicate the magnitude of an electrical quantity at the time
when it is being measured.”
Their indications are given by a
pointer moving over calibrated dial.
Example: Ordinary voltmeters, ammeters and wattmeter’s,
etc.