EEVblog 1693 – Uni-T UTE310 Power Meter Teardown & Practical Demo

A teardown of the Uni-T UTE 310 Digital Power Meter, and an example meausing the power consumption of the new Brymen BM786BT multimeter in bluetooth data transmission mode.

https://uni-trendus.com/products/ute310-digital-power-meter

Forum: https://www.eevblog.com/forum/blog/eevblog-1693-uni-t-ute310-power-meter-teardown-practical-demo/

00:00 – Uni-T UTE310 Power Meter
02:44 – Teardown
06:54 – Power supply
07:47 – FPGA and ARM processors (plural)
09:23- Seperate isolated volatge and current measurements
11:28 – Special Snowflake shunt resistor
14:04 – Turn on and a looks at the current ranges
15:04 – Flashing LEDs
15:51 – Shunt resistor heatsink sizing
16:46 – Inside the metal cans. ADC’s + Amplifiers. Talking head Dave, PCB walkthrough
27:05 – Power on, offset error, and the tyranny of ranging
30:19 – Demonstration with BM786BT multimeter battery consumption
34:51 – Current waveform view
39:11 – The offset has drifted
40:43 – Conclusion

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