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Sarah YoungAug 4, 2025
What to do if there is no light for the Power supply indicator on my SEP Measuring Instruments?
- JJoel MoralesAug 4, 2025
If the power supply indicator light isn't on, it might be due to an internal circuit fault. First, check the switch, circuit-breaker, fuse, or thermal cut-off. Reinstall terminal screws on positions 1 and 4, ensuring they are securely fixed. Verify that there is a 230V 50Hz AC voltage between terminal screws 1 and 4 when the power supply is input. If the problem persists, contact a qualified technician. Replacement of the meter may be necessary.