In an electricity meter or water meter, the signal generator is used to produce standard electrical signals for calibrating and testing the meter's measurement functions.
1. Provide reference signal: Generates a signal of known frequency, voltage, or current as a test benchmark.
2. Calibrate the meter: Used to verify the meter's measurement accuracy and ensure accurate readings.
3. Functional test: Used to check whether the meter's various measurement functions are normal, such as voltage, current, and frequency measurement modes.
4. Troubleshooting: When repairing the meter, helps determine whether the fault lies within the meter or with an external signal.
