Products > Test Equipment
HoldPeak current probes HP-605X, any good ?
R_G_B_:
This one does power but it's not true RMS
https://www.aliexpress.com/item/HoldPeak-HP-870P-Power-Clamp-Meter-Auto-Range-AC-DC-Voltmeter-999-9A-Ammeter-Tester-Electronic/32885509774.html
And this for low current
https://it.aliexpress.com/item/CP-06-AC-DC-Current-Probe/737732730.html?spm=a2g0y.search0104.3.1.21351d997z9QHh&ws_ab_test=searchweb0_0,searchweb201602_2_10065_10068_10130_318_10547_319_10548_10696_450_10192_10190_10084_10083_10618_452_535_534_533_10307_10820_532_10301_10821_10303_204_10059_10884_10887_100031_320_10103_448_449,searchweb201603_60,ppcSwitch_0&algo_expid=7dc886ec-8398-46ba-a769-9a5e495dea4e-0&algo_pvid=7dc886ec-8398-46ba-a769-9a5e495dea4e&transAbTest=ae803_4
Lomax:
My impression is that there's a pretty steep increase in quality (and cost) required to reliably measure <200mA-ish DC currents with a Hall effect "clip-on" sensor. If (like me) you're on a budget you're probably better off with a shunt etc (or inlining your meter's own shunt resistor) for weak DC current measurements. And even with an expensive probe, I expect that environmental factors would affect the measurement quite significantly. My own application for an AC/DC current proble would be to ballpark current draw on individual wires (e.g. behind a main fuse panel) in automotive and marine applications (12-24V DC typically), and logging power/time, for troubleshooting purposes. In most cases I'd be dealing with currents >500mA <50A, which I hope is a more reasonable range to measure somewhat accurately.
BillyO:
Sorry to resurrect this thread, but my reply is pertinent.
For $20 I went ahead and picked one of these up (605A). My main reason was to measure the cranking current on starters for cars and motorcycles.
It works fine and is fairly accurate (+/- 3%).
The instructions are a complete mystery. Ignore them.
It needs to be used with a meter that has relative capability in it's mV range. It outputs 1mV/A
1) Set your meter to uVmV DC.
2) Connect the clamp and turn it on.
3) REL out the reading.
4) Place the clamp around the wire to be measured then read of the amperage in mV.
Seems well constructed and has a nicely implemented PCB inside with off the self components.
I have not tried to determine the BW as I have no way to modulate a high current at anything beyond 60 Hz. For what I use it for, it will do fine and for $20 it was a bargain.
arturmariojr:
For those who wants a full review:
https://goughlui.com/2020/12/04/review-teardown-holdpeak-hp-605c-6-40a-ac-dc-clamp-adapter/
Very deep!
DaneLaw:
Nice review.
Got the bigger amp-brother. HP605A
Decided to roll the dice and purchase the 4 cheapest AC&DC clamp meters I could find on Aliexpress at one of their sales 3 to 4 years back. https://tinyurl.com/yprnhst9
* HoldPeak HP605A 15US
* Hantek CC65 (20Khz) 40USD
* Allsun EM264 25US
* ETCR007AD (100Khz) 50US
All got AC+DC support and obviously, a mixed bag as some are for high current with jacks (DMM) and others for relatively low current with BNC.
The Hantek CC65 was the cleanest - for the price its a nice AC/DC BNC-clamp meter, while the most expensive ETCR007 which also are targeted for low-current was extremely noisy, to the point that something seemed off or maybe defective - even with 30Khz bandpass filter, I couldn't clean it up, but half of the pads is also unpopulated
Holdpeak HP605 with DMM (AC) - And scope (AC)
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Color changing USB-LED (DC) - CC65 below (ch2 on full bw) and ETCR007A on top (ch1 LP-filtered)
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