| Products > Test Equipment |
| XJW01 Auto LCR meter review ($120 bench top LCR meter) |
| << < (15/26) > >> |
| buildafriend:
from another forum - the leads that came with the XJW01 werent the greatest quality ,and they werent very flexible , what I found was that after you calibrate the leads and you dsconnect one ,you get a reading for the capacitance of that lead , if you do that in turn for each lead ,you start to see that there could be several pf's difference in each lead , this will scew the readings on the meter ,by a certain amount . When I made my new leads I used high quality cable ,very precisely measured ,in lenght ,and capacitance , in other words the more accurate your cables ,the more accurate the reading from the meter is . The original cables entered the probe clips on one side , which meant that one of the two cables to each probe was longer than the other ,that in turn means higher resistance and capacitance ,so calibration doesnt zero out the bridge so well. |
| AG7CK:
:=\ :=\ :=\ Impedance = Voltage / Current = Potential / Current (Force) Current High and Low : Hc, Lc (Sense) Potential High and Low : Hp, Lp The search "lcr lp lc hc hp" gives (on my pc, i.e. - ymmv) first link being: http://hiokiusa.com/wp-content/uploads/pdf/28261-LCRappguide-2016.pdf . On page 5 of 28 I find the below attached figure. The excellent but excentric XJW01 is imo only for people who already know how to use a generic LCR meter already (yep, yhat is a double). People w/o willingness and ability to search and learn on their own can imo use it to "indicate" some value or another for ohm, farad and henry - but little else. Hence go find and study 3-10 user manuals for LCR meters from Japan, Germany and USA, and you will see that many questions in this thread evaporates into thin air. :-DMM :=\ |
| WhichEnt2:
--- Quote from: Specmaster on June 14, 2018, 03:48:58 pm --- --- Quote from: WhichEnt2 on June 14, 2018, 03:23:31 pm ---They usually use 120 or 100 Hz for dissipation factor and 100 kHz for ESR. --- End quote --- Just looked Vishay data sheets and it clearly states ESR @ 120Hz, as have the other data sheets on Electrolytic caps. From mobile device so predictive text might have struck again [emoji83] --- End quote --- I checked it just now on random vishay cap series, as you. http://www.vishay.com/docs/28420/160rla.pdf |
| AG7CK:
:-DD :-DD :-DD Well, 2x50Hz is 100Hz and 2x60Hz is 120Hz, so it all depends on the grid line frequency of the country in which the datasheet was written or which it was written for. But it doesn't mean anything at all. Start read some manuals, and you will soon know it all. ;D |
| Specmaster:
And which manuals would they be? |
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