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  1. caps

    problem in DT-9205A multimeter

    Then it is not very good.
  2. caps

    problem in DT-9205A multimeter

    About transistors.How can they have a short circuit if you just replaced the battery. To answer your question, it is better to look at the diagram. Either you take a photo of your board, or look for a diagram of your version of the multimeter.
  3. caps

    problem in DT-9205A multimeter

    What is the switch position?
  4. caps

    problem in DT-9205A multimeter

    This is checked at the 20mA switch position. The power of the multimeter is turned off. At the switch position of 200 mV, the input resistance between the com and v terminals should be 1 MΩ.
  5. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Another capacitor 1uF 450v. Thus, we checked the linearity of the ESR meter scale to 20 Ohms. All perfectly.
  6. caps

    problem in DT-9205A multimeter

    At the same time, check the quality of the contacts of the display cable and the voltage between the com of the multimeter and the + battery. There should be about 3V.
  7. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    1uF 450v. LCR Pro1. 17.059 Ohm. ESR meter 100kHz. 17 Ohm.
  8. caps

    problem in DT-9205A multimeter

    If there is another multimeter,check the new battery.
  9. caps

    problem in DT-9205A multimeter

    There may be short circuits in the multimeter circuit. Pay attention to the 74HC14D chip.
  10. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    1uF 400v. Very good. LCR Pro1. ESR-14.989Ohm. ESR meter 100kHz. 15 Ohm.
  11. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Measurements in the circuit. 0.1uF/50V.
  12. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    I did not quite understand your question. Please tell me more precisely what moment interests you.
  13. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    ESR meter 100kHz. 3.2Ohm
  14. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    As we know, there are electrolytic capacitors, the capacity of which is in the range of 0.1-1 uF. ESR measurement of such capacitors is associated with certain difficulties. Very few amateur radio circuits are able to do this with maximum accuracy. Recently I finished work on the ESR meter for...
  15. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Very good. 0,1uF/63v. LCR Pro1. ESR-3.2113Ohm.
  16. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Naturally, after such a “analysis” of a 1000uF capacitor, which is catastrophically bad, such a tweezer is only in a trash can.
  17. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    Here we mentioned some super-capabilities of Russian tweezers HB-14 to compare the ESR measurement results with the manufacturer’s datasheets. This is complete nonsense, which has nothing to do with practice, the problems of increasing the ESR of capacitors, as well as leading to an incorrect...
  18. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    And here is another good example. The electrolytic capacitor 220uF is in a state of short circuit. The capacitance is almost absent. But the Russian tweezers HB-14 shows complete nonsense. What else can you expect from a home-made tester? C-351uF ESR-0.024Ohm :oops:
  19. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    To make it clear to everyone how these two tweezers differ, I will give a very good example. Capacitor Rubycon ZLH Low impedance 1000uF / 35V. Max.impedance (100kHz) -0,017Ohm. http://www.rubycon.co.jp/EN/CATALOG/E_PDFS/ALUMINUM/E_ZLH.PDF My precision tweezers. ESR-0.008Ohm. LCR Pro1...
  20. caps

    Smart LCR tweezers LCR Pro1-Russian RLC tweezers HB-14

    I hope, we have seen enough in many examples that the Canadian tweezers LCR Pro1 have higher technical characteristics for all types of measurements compared to the Russian tweezers HB-14. Two times smaller, much lighter, does not require constant calibration,has accurate, gold-plated tips. It...
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