In this episode Shahriar reviews the ITECH IT9121 Digital Power Meter. The IT9100 power meter series can provide up to 1000Vrms and 50Arms and measurement bandwidth of 100KHz. The instruments can measure voltage, current, power, frequency, harmonics and other parameters. The standard configuration includes USB, GPIB, RS232 and LAN communication interfaces and also interfaces for USB-based peripheral devices. The basic voltage and current accuracy is 0.1%.
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This review is organized as follows:
00:00 - Introduction, interfaces, front & back panel
03:37 - IT-E185 AC Interface accessory overview
05:01 - Complete teardown, architecture analysis, mixed-signal design
15:46 - GUI overview, measurement capabilities, analysis types
18:03 - Included interface cables, DC accuracy and capability measurements
20:45 - AC measurements, PF, S, THD, Phase, Frequency measurements
26:45 - Characterization of an Anker USB-C 60W chargers and USB-C battery pack
33:13 - Characterization of an LED light bulb with external Triac dimmer circuit
36:52 - PC software capabilities and overview
38:02 - Concluding remarks
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