Author Topic: YR1035+, HRM-10 and YR2050 Low R Comparisons  (Read 127 times)

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Offline mawyattTopic starter

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YR1035+, HRM-10 and YR2050 Low R Comparisons
« on: January 21, 2025, 06:50:22 pm »
Having evaluated the YR1035+ and HRM-10 here, our curiosity got the best of us (always does, see signature below)  :o

https://www.eevblog.com/forum/testgear/any-more-in-depth-info-on-the-yr1035-battery-tester-milliohm-meter/msg5787163/#msg5787163

So now we've included the YR2050 dedicated Milliohm Meter. The HRM-10 and YR1035+ are Battery Test Meters that perform the Resistance measurement with an AC waveform at ~1KHz, while the YR2050 uses DC like DMMs. All use a much higher level DUT test current than a typical DMM, like our Bench LCR meters, however the YR2050 uses up to 100ma DC test current which is higher than our LCR Meters which use for DCR measurements, with max of ~10ma.

The HRM-10 last digit was often questionable in most measurements, so the "apparent" extra resolution needs consideration.

All measurements with supplied Kelvin Clips, use DMM6500 as reference value (4 NPLC, Line Sync, Offset Comp Auto).

BTW we really like the coaxial Kelvin type probe leads you can get for the YR1035+. Evidently they don't offer them for the YR2050 which utilizes an old USB connector type, but a pair of USB connectors came with the YR2050, so hinting you can make your own. We also created a Banana Adapter for the HRM-10 connector GX12 type and the YR1035 Connector XS10 type to be able to use the coaxial Kelvin probes (and others) with our DMMs which have 4 Banana type connectors, see link above.

Anyway, these economical (can't call them cheap which infers sloppy, minimalist design and build, which they are not!!) meters perform quite well indeed for low resistance measurements.

Best

« Last Edit: January 21, 2025, 07:20:58 pm by mawyatt »
Curiosity killed the cat, also depleted my wallet!
~Wyatt Labs by Mike~
 
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