| Products > Test Equipment |
| Hantek 2000 series - 2C42/2C72/2D42/2D72 |
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| Microcheap:
--- Quote from: madmedicine on June 25, 2019, 11:35:40 pm ---When I received my unit from banggood (a 2D42), I noticed the ohm readings were bad, always measuring 1kohm or 10kohm with no leads plugged in. DC voltage was off by maybe 0.3 volts but that kinda went away by itself after while. The buzzer also had strange readings. It would beep fine but measure ~300ohms --- End quote --- yep, It seems that Hantek had a batch of devices with this issues, they won't admit but I saw a lot reports of the same problem (the diode test doesn't work too). If you you have access to a rework station try to reflow the main IC from the multimeter section (the Semico one) and the resistors around it. I've fixed my this way. |
| madmedicine:
I wasn't sure what would of been the best fix. At first I thought of removing the screw but I could see the board flex when pressing the buttons so I didn't like this. Either I try raising the relay, or put electrical tape, went for the simpler route. Anyways I know where to look for if the issues pops back. I had issues also with the diode check, it works fine now after putting tape over the screw. It works on a regular diode but not leds (not sure if its powerful enough to power leds). But the capacitor tester doesn't seem to work (always showing 0nF) so I will try reflowing the IC you mentioned the next time I feel like opening it again. |
| scatterandfocus:
For those of you who own one of these, is it a decent tool or junk? Is it known whether there have been hardware revisions? One thing that concerns me is that I don't see any U.S. dealers of these scopes, which might indicate too many problems to deal with. I'm looking for my first dso, and the multi-functionality, battery power for portability and isolation, and low cost are attractive to me. Use cases for me will be looking at signals in audio circuits, automotive, later on tube amps, and just general tinkering. How I understand it, 2Mhz bandwidth is adequate for audio and automotive. But I'm not sure whether the 3k/6k record length would be good enough. And I have read that channel 1 is noisy, there are some software bugs, as well as the issues that madmedicine mentioned. |
| ataradov:
I would put it more in a junk category rather than useful tool. It is useful, but the UI is horrific, so if you need to do anything beyond very basic observations, get a real scope. |
| scatterandfocus:
What issues are there with the UI? Lack of functionality? Slowness? Bugs? Are there any similarly featured scopes out there that would be a better alternative? |
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