Short press again to clear the energy value (Wh/kWh) 18;write_to_target_document7;default0;c59;0;1b5;0;1b5;18;write_to_target_document1a;_Qn3uaYrfAtKLwbkPgMu7mQs_20;947;.

The meter requires at least 6.5V to operate. If measuring a source below 6.5V, a separate power supply is required for the meter's logic 0;a9c;.

| Symptom | Manual’s Solution | Real-world Fix | | :--- | :--- | :--- | | No display | Check Aux power polarity | Aux power needs higher voltage than measured line if using single supply | | Current reads 0.00 | Shunt disconnected | Verify 75mV rating matches meter (50A shunt = 75mV output) | | Erratic readings | Loose sense wires | Solder sense wires directly; do not use terminal blocks |

If your unit behaves erratically, revisit the Chapter 5 Troubleshooting guide. When in doubt, isolate the meter and test it with a known 12V battery and a small 10W light bulb before scaling up to 100A systems.

Always confirm labels on your board; manufacturers vary.

💡 : When wiring, ensure the "Negative" wire from the source goes through the Shunt first. Miswiring the shunt is the #1 cause of device failure reported by users. If you'd like, I can help you with: