| Products > Test Equipment |
| XJW01 Auto LCR meter review ($120 bench top LCR meter) |
| << < (16/26) > >> |
| AG7CK:
--- Quote from: Specmaster on June 15, 2018, 11:11:13 am ---And which manuals would they be? --- End quote --- Thank you for asking. I will compile a list of imo useful and easy to read manuals below. In the mean time: 1) Please search the web for "lcr 100hz 120hz". You will find snippets like: - 100Hz and 120 Hz test frequencies are generally used in capacitance measurement of electrolytic capacitors which are used as power line voltage rectifiers. - UK— 50 Hz - Ripple frequency = 100 Hz - to filter power line frequency effects (50/100Hz or 60/120Hz) - Test frequencies: 100Hz, 120Hz, 1kHz and 10kHz. This will set you off finding info yourself. 2) Read the very good manual for DE-5000 (a very good cheap all-round instrument). There are different versions, but this was the first I found: https://www.ietlabs.com/pdf/Manuals/DE_5000_im.pdf If you search "100 Hz" in the pdf-file manual, you will find the string "100 Hz / 120 Hz / 1 kHz / 10 kHz / 100 kHz" on page 46 of 52. 3) Now go search "100 Hz / 120 Hz / 1 kHz / 10 kHz / 100 kHz" on the web, and you will get "a ton" of user manuals for LCR meters. Voila, I don't have to compile a list after all ... (joking, I will put up a list later). Good luck searching and reading. |
| buildafriend:
--- Quote from: AG7CK on June 15, 2018, 01:02:36 am --- :=\ :=\ :=\ 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 :=\ --- End quote --- The recently recommended paper on impedance measurement was extremely helpful, now you've got me digging. And yeah I wish I could afford a normal LCR meter before this one! There's no reason to settle for a lesser meter when you have the ability to learn a better one that costs less. Does this not count as research ;) The old art of communicating with people ;D This adds clarity, thank you!! |
| WhichEnt2:
--- Quote ---Well, 2x50Hz is 100Hz and 2x60Hz is 120Hz --- End quote --- Really? And why do you insidiously ignore 100 kHz in such complex math equations? :popcorn: |
| AG7CK:
--- Quote from: WhichEnt2 on June 15, 2018, 11:44:44 am --- --- Quote ---Well, 2x50Hz is 100Hz and 2x60Hz is 120Hz --- End quote --- Really? And why do you insidiously ignore 100 kHz in such complex math equations? :popcorn: --- End quote --- I like your sense of humor. Pass me the popcorn, please. I must admit that I cannot count to 100.000 But there are historical reasons for the universally accepted test frequencies of (all in Hz): - 100/120 (explained over) - 1k, 10k (standard caps and more - intermediate values) - 100k (RF stuff) But this is also searchable for those who bother to do it. So no need for me to write a half baked explanation of things that are already out there. PS If you search the web for "eevblog xjw01 7.8khz" you will know the reason why this meter does not conform to 10kHz. And if you search the web for "lcr meter 9.6khz" you will learn even more. Happy searching. |
| Specmaster:
--- Quote from: AG7CK on June 15, 2018, 12:04:57 pm --- --- Quote from: WhichEnt2 on June 15, 2018, 11:44:44 am --- --- Quote ---Well, 2x50Hz is 100Hz and 2x60Hz is 120Hz --- End quote --- Really? And why do you insidiously ignore 100 kHz in such complex math equations? :popcorn: --- End quote --- I like your sense of humor. Pass me the popcorn, please. I must admit that I cannot count to 100.000 But there are historical reasons for the universally accepted test frequencies of (all in Hz): - 100/120 (explained over) - 1k, 10k (standard caps and more - intermediate values) - 100k (RF stuff) But this is also searchable for those who bother to do it. So no need for me to write a half baked explanation of things that are already out there. PS If you search the web for "eevblog xjw01 7.8khz" you will know the reason why this meter does not conform to 10kHz. And if you search the web for "lcr meter 9.6khz" you will learn even more. Happy searching. --- End quote --- So in the case of someone like me who is not really RF but more into audio and power supply smoothing and filtering the 100Hz and 120Hz testing frequency is surely just fine? I have just read the manual for DE5000 and yes, while it does support 1KHz, 10KHz 100KHz, 100Hz and 120Hz, the default is 1KHz but it does not explain why it defaults to IHz test frequency and likewise it fails to mention why does it support other frequencies as well? |
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