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| ET5410 Electronic Load mod: add external sense |
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| DaneLaw:
--- Quote from: andobovsayvkub on August 06, 2024, 12:52:00 pm ---2940 grams (my 2 banana extra slots included) --- End quote --- Thx for the feedback, the reason why I was asking is that it seems to be cheaper, than what the older revision reflected ET54xx, and speculated if East Tester had cost-optimised it, as I noticed some months back when looking at their specs, there was quite a big difference in weight between old versus new model. Fx the 40A 1ch. model. ET5410 = 3.7kg (old model) ET5410A+ 2.9kg (new model) Its around 25% of the total weight that's been abracadabra-goneski. |
| klausES:
The question is whether the 3.7 kg in the older model was right. The one dealer from China probably write down the wrong one from another ... The weight difference mentioned from almost a kg appears to me on the basis of the pictures when you look at the same heat sink etc. and the housing also seems to be of the same tin thickness, simply too big to be realistic. |
| DaneLaw:
--- Quote from: klausES on August 07, 2024, 12:36:04 pm ---The question is whether the 3.7 kg in the older model was right. The one dealer from China probably write down the wrong one from another ... The weight difference mentioned from almost a kg appears to me on the basis of the pictures when you look at the same heat sink etc. and the housing also seems to be of the same tin thickness, simply too big to be realistic. --- End quote --- Looked at some of my older pictures. A tad under 3.7kg, seems about right on the older model. --- End quote --- --- End quote --- |
| klausES:
There are very different information, even up to 4.3 kg in one case a dealer writes 5 kg. All of the written does not close to the scale with your weight. So I don't go from most information on the Internet. This seems to me sucked out of their fingers. Really measured, hardly any of these retailers who otherwise also sell women's stockings. Incidentally, a nice button for the Rotary Encoder. Hopefully your device doesn't weigh so much because of this ;) |
| andobovsayvkub:
--- Quote from: mawyatt on June 21, 2024, 08:35:59 pm --- Interesting and clever mod :-+ Would think you would also want a 22 ohm resistor between the - Power terminal and 119.2K 199.2K resistor and "SENSE -" between to balance out the differential amplifier. Best, --- End quote --- I suppose you are right. Frankly I have no idea how it would change the result. I have seen that R114 has shunted already the entire circuit and suggested that there is some error in schematics or current going bypassing this circuit. I really tried to get the resistance between GND and GNDD and always got zero. Anyway worth a try to add. Someday. --- Quote from: DaneLaw on August 07, 2024, 12:50:58 pm --- --- Quote from: klausES on August 07, 2024, 12:36:04 pm ---The question is whether the 3.7 kg in the older model was right. The one dealer from China probably write down the wrong one from another ... The weight difference mentioned from almost a kg appears to me on the basis of the pictures when you look at the same heat sink etc. and the housing also seems to be of the same tin thickness, simply too big to be realistic. --- End quote --- Looked at some of my older pictures. A tad under 3.7kg, seems about right on the older model. --- End quote --- According to "old" photos from topic it seems that there was a metal frame on front panel. Now it's a pure plastic. But 0.8kg ;D? May be smth else lost weight. |
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