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How to Test Capacitors with and without using Multimeter

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Language: en

00:00:09.900
hello viewers welcome to texture detail
00:00:12.900 00:00:12.910 today we will discuss how to test
00:00:15.600 00:00:15.610 different type of capacitor with the
00:00:17.760 00:00:17.770 help of this multimeter I am using not
00:00:20.940 00:00:20.950 auto-select multimeter so I have to
00:00:22.890 00:00:22.900 select the range
00:00:23.820 00:00:23.830 according in today's video we'll test
00:00:27.480 00:00:27.490 this fourth type of capacitor the
00:00:30.720 00:00:30.730 polypropylene capacitor box capacitor
00:00:33.869 00:00:33.879 ceramic capacitor these two types are ac
00:00:37.260 00:00:37.270 capacitor and electrolytic capacitor
00:00:40.770 00:00:40.780 which is a DC capacitor later we'll
00:00:44.880 00:00:44.890 discuss how to test a capacitor without
00:00:48.270 00:00:48.280 using a multimeter so let's start first
00:00:52.170 00:00:52.180 I am going to measure or I am going to
00:00:56.579 00:00:56.589 test this polypropylene capacitor the
00:01:00.149 00:01:00.159 nominal value is indicated which is 0.47
00:01:04.439 00:01:04.449 micro farad to measure the capacitor or
00:01:08.750 00:01:08.760 capacitance we have to select the farad
00:01:13.740 00:01:13.750 scale in the multimeter here F is
00:01:16.499 00:01:16.509 written which indicate farad and it's
00:01:19.529 00:01:19.539 the unit of capacitance as it's not a
00:01:23.160 00:01:23.170 auto-select multimeter I have to select
00:01:26.039 00:01:26.049 the range
00:01:26.730 00:01:26.740 according it's nominal value which is
00:01:29.310 00:01:29.320 0.47 micro farad so I am selecting here
00:01:32.910 00:01:32.920 2 micro farad next I have to insert a
00:01:37.980 00:01:37.990 capacitor in this slot see X is written
00:01:42.749 00:01:42.759 here but before inserting any capacitor
00:01:47.459 00:01:47.469 in this slot we must discharge the
00:01:50.249 00:01:50.259 capacitor to discharge a capacitor we
00:01:53.910 00:01:53.920 have to connect the two terminal of the
00:01:57.149 00:01:57.159 capacitor this way now it distr I can
00:02:05.489 00:02:05.499 measure it capacitance
00:02:08.770 00:02:08.780 now I am inserting the capacitor in this
00:02:13.120 00:02:13.130 slot and it's showing 0.46 micro farad
00:02:21.500 00:02:21.510 the value is showing in the micro farad
00:02:23.960 00:02:23.970 scale so it's almost near to the nominal
00:02:28.460 00:02:28.470 value which is 0.47 so capacitance of
00:02:32.390 00:02:32.400 this capacitor is okay next we will
00:02:36.410 00:02:36.420 check the box capacitor these are the
00:02:41.510 00:02:41.520 Box capacitor now we check this box
00:02:47.750 00:02:47.760 capacitor the nominal value of this box
00:02:52.130 00:02:52.140 capacitor is written on the top of the
00:02:56.270 00:02:56.280 capacitor which is 100 nano farad so
00:03:02.540 00:03:02.550 again I have to discharge the capacitor
00:03:04.760 00:03:04.770 I am connecting the two terminal of the
00:03:10.640 00:03:10.650 capacitor to discharge it or I can do it
00:03:14.920 00:03:14.930 with this method also after discharging
00:03:18.320 00:03:18.330 the capacitor are to select a range
00:03:20.440 00:03:20.450 nominal value is 100 micro nano farad
00:03:24.590 00:03:24.600 sorry 100 nano farad so I am selecting
00:03:27.680 00:03:27.690 the nano farad scale here is 200 nano
00:03:33.949 00:03:33.959 farad
00:03:36.900 00:03:36.910 now I can insert the capacitor in this
00:03:40.500 00:03:40.510 slot now it's showing 90 or 89 nano
00:03:47.250 00:03:47.260 farad the 20% deviation is possible for
00:03:53.790 00:03:53.800 this capacitor so it's indicate this
00:03:57.300 00:03:57.310 capacitor is okay now we will test this
00:04:03.180 00:04:03.190 ceramic capacitor for this ceramic
00:04:07.590 00:04:07.600 capacitor the nominal value is 15 Pico
00:04:10.860 00:04:10.870 farad the capacitance value of this
00:04:15.510 00:04:15.520 ceramic capacitor generally very low in
00:04:19.110 00:04:19.120 Pico farad or nano farad scale now again
00:04:22.950 00:04:22.960 before measuring the capacitance I have
00:04:26.670 00:04:26.680 to connect the two leads of the
00:04:29.280 00:04:29.290 capacitor to discharge next I can
00:04:35.130 00:04:35.140 connect or I can insert the capacitor in
00:04:41.040 00:04:41.050 this slot here Pico farad scale is not
00:04:44.910 00:04:44.920 present so I am selecting two nano farad
00:04:49.190 00:04:49.200 which is a lowest scale present in this
00:04:54.030 00:04:54.040 multimeter
00:05:03.780 00:05:03.790 okay now in the display point zero one
00:05:09.370 00:05:09.380 five is showing the value is showing in
00:05:12.700 00:05:12.710 the nanofarad scale so the capacitance
00:05:16.300 00:05:16.310 of this capacitor is okay
00:05:27.930 00:05:27.940 now we'll check the electrolytic
00:05:31.150 00:05:31.160 capacitor these are the electrolytic
00:05:33.129 00:05:33.139 capacitor which is also DC capacitor and
00:05:37.980 00:05:37.990 a nominal value for the electrolytic
00:05:41.409 00:05:41.419 capacitor generally in high range to
00:05:46.090 00:05:46.100 identify it's positive and negative
00:05:48.370 00:05:48.380 terminal here the minus symbol is given
00:05:56.440 00:05:56.450 to indicate its negative terminal this
00:05:59.740 00:05:59.750 is the negative terminal I can say by
00:06:03.730 00:06:03.740 looking at this symbol and this should
00:06:07.180 00:06:07.190 be positive terminal you can also
00:06:09.310 00:06:09.320 identify the negative and positive
00:06:10.930 00:06:10.940 terminal looking the length of this lead
00:06:16.390 00:06:16.400 the positive terminal have greater
00:06:20.590 00:06:20.600 length than negative terminal this
00:06:23.350 00:06:23.360 should be positive terminal and this
00:06:25.060 00:06:25.070 should be negative terminal now again
00:06:28.060 00:06:28.070 before testing the capacitor I have to
00:06:33.570 00:06:33.580 connect a two terminal or two lead for
00:06:38.020 00:06:38.030 discharging now I can insert it in this
00:06:44.710 00:06:44.720 slot I have to select the range I am
00:06:49.210 00:06:49.220 selecting the range 2 micro farad and
00:06:52.890 00:06:52.900 it's showing 0.866 micro farad which is
00:06:59.379 00:06:59.389 almost near the 1 micro farad so the
00:07:05.140 00:07:05.150 capacitance is okay of this capacitor as
00:07:07.960 00:07:07.970 I have said that 20 percent deviation is
00:07:11.780 00:07:11.790 now if I want to check this capacitor
00:07:15.300 00:07:15.310 with the help of this digital multimeter
00:07:17.850 00:07:17.860 the nominal value of the capacitor is
00:07:21.320 00:07:21.330 thousand micro farad and the maximum
00:07:23.909 00:07:23.919 capacitance I can measure with this
00:07:26.010 00:07:26.020 multimeter is 20 micro farad so it is
00:07:30.029 00:07:30.039 not possible to measure thousand micro
00:07:31.980 00:07:31.990 farad with this multimeter but still I
00:07:36.390 00:07:36.400 can check whether this capacitor is okay
00:07:39.270 00:07:39.280 or not with the help of this multimeter
00:07:41.779 00:07:41.789 for that I have to select any higher
00:07:45.540 00:07:45.550 ohmic range I am selecting here 20 kilo
00:07:49.620 00:07:49.630 ohm range and the leads of the
00:07:51.600 00:07:51.610 multimeter should be connected this way
00:07:53.430 00:07:53.440 the grade lead should be in voltage and
00:07:57.270 00:07:57.280 ohm port and backlight should be in
00:07:59.610 00:07:59.620 common port next I have to connect the
00:08:04.469 00:08:04.479 red lead in the negative terminal of the
00:08:07.469 00:08:07.479 capacitor here it's negative terminal is
00:08:11.689 00:08:11.699 shown so I am connecting the red lead in
00:08:15.210 00:08:15.220 the negative terminal of the capacitor
00:08:17.010 00:08:17.020 and a black lead I am connecting with
00:08:20.490 00:08:20.500 the positive terminal of the capacitor
00:08:22.879 00:08:22.889 looking at the display you can see that
00:08:26.240 00:08:26.250 capacitor is slowly charging as the
00:08:29.790 00:08:29.800 value is increasing slowly which
00:08:34.829 00:08:34.839 indicates that capacitor is charging
00:08:39.800 00:08:39.810 after the certain point is showing over
00:08:42.719 00:08:42.729 limit now I am going to reverse the lead
00:08:47.670 00:08:47.680 of the multimeter earlier I have
00:08:51.329 00:08:51.339 connected the black lead in positive
00:08:54.329 00:08:54.339 terminal of the capacitor and red lead
00:08:56.880 00:08:56.890 with the negative terminal of the
00:08:59.070 00:08:59.080 capacitor now I am going to connect the
00:09:01.740 00:09:01.750 red lead with a positive terminal of the
00:09:04.560 00:09:04.570 capacitor and black lead I am connecting
00:09:09.600 00:09:09.610 00:09:11.040 00:09:11.050 capacitor now you can see in the display
00:09:14.180 00:09:14.190 the value is showing in negative and
00:09:18.140 00:09:18.150 slowly it increasing
00:09:21.740 00:09:21.750 which indicates that capacitor is now
00:09:24.980 00:09:24.990 charging in the reverse polarity again
00:09:31.550 00:09:31.560 after starting pure it's showing over
00:09:33.890 00:09:33.900 limit
00:09:35.380 00:09:35.390 thus we can check whether this capacitor
00:09:40.310 00:09:40.320 is okay or not if this capacitor was not
00:09:44.090 00:09:44.100 okay then it shouldn't take the charge
00:09:47.540 00:09:47.550 in both polarity with this method we can
00:09:51.130 00:09:51.140 conclude that this capacitor is okay now
00:09:58.820 00:09:58.830 there are also another method for
00:10:00.530 00:10:00.540 checking the capacitor in this circuit
00:10:04.780 00:10:04.790 different type of capacitor is mounted
00:10:07.250 00:10:07.260 on this PCB and looking at this
00:10:13.520 00:10:13.530 electrolytic capacitor you can see the
00:10:18.290 00:10:18.300 top surface of this capacitor is
00:10:21.700 00:10:21.710 slightly inflated is not plain which
00:10:25.730 00:10:25.740 indicate this capacitor not in good
00:10:29.630 00:10:29.640 condition so looking at the capacitor
00:10:34.550 00:10:34.560 you can say whether the capacitor is in
00:10:38.090 00:10:38.100 good condition or not inflated top
00:10:42.050 00:10:42.060 surface indicate that capacitor is not
00:10:44.870 00:10:44.880 in good condition but if this capacitor
00:10:50.480 00:10:50.490 was okay you can see here the top
00:10:55.340 00:10:55.350 surface of the capacitor is plane
00:11:08.100 00:11:08.110 there is also another method for testing
00:11:11.560 00:11:11.570 a capacitor without the help of
00:11:13.780 00:11:13.790 multimeter suppose if I want to check
00:11:17.500 00:11:17.510 this capacitor whether it is okay or not
00:11:20.860 00:11:20.870 I just have to charge the capacitor with
00:11:25.780 00:11:25.790 the DC supply before that here 63 volt
00:11:30.100 00:11:30.110 is written which indicate it can take
00:11:33.010 00:11:33.020 charge up to 63 volt so simply I am
00:11:38.200 00:11:38.210 going to charge this capacitor with this
00:11:42.100 00:11:42.110 9-volt battery for charging this
00:11:47.980 00:11:47.990 capacitor I have to connect the positive
00:11:49.930 00:11:49.940 leads of the capacitor with the positive
00:11:53.470 00:11:53.480 terminal of the battery and negative
00:11:55.780 00:11:55.790 leads of the capacitor with the negative
00:11:57.460 00:11:57.470 terminal of the battery by connecting
00:12:00.400 00:12:00.410 this way
00:12:01.150 00:12:01.160 I have already charged the capacitor
00:12:03.540 00:12:03.550 with a nine volt now I have to connect
00:12:10.510 00:12:10.520 any load for example I am connecting a
00:12:14.410 00:12:14.420 DC buzzer so that you can listen the
00:12:18.040 00:12:18.050 sound when the capacitor is discharged
00:12:22.290 00:12:22.300 with through this buzzer again this as
00:12:29.050 00:12:29.060 this is a DC buzzer here positive and
00:12:33.519 00:12:33.529 negative terminal is indicated so I am
00:12:36.940 00:12:36.950 going to connect the positive lead of
00:12:39.220 00:12:39.230 the capacitor in a positive terminal and
00:12:43.560 00:12:43.570 negative leads AB dub kappa sitter in
00:12:47.350 00:12:47.360 the negative terminal you can listen a
00:12:50.170 00:12:50.180 sound after I have connect and sound is
00:12:54.160 00:12:54.170 slowly decreasing as it's discharging
00:12:57.670 00:12:57.680 the capacitor
00:13:00.890 00:13:00.900 can listen the sound
00:13:03.120 00:13:03.130 and slowly is discharging
00:13:06.150 00:13:06.160 and now the capacitor is totally
00:13:09.600 00:13:09.610 discharged so it's charging and
00:13:14.070 00:13:14.080 discharging and there is also not any
00:13:17.370 00:13:17.380 inflated top portion so this capacitor
00:13:21.240 00:13:21.250 is okay thus at the end of the video I
00:13:27.480 00:13:27.490 hope you have understood how to check
00:13:29.970 00:13:29.980 00:13:32.580 00:13:32.590 help of multimeter and we have also
00:13:34.890 00:13:34.900 discussed how to check the capacitors
00:13:37.250 00:13:37.260 without the help of multimeter if you
00:13:41.490 00:13:41.500 find the video is helpful to you please
00:13:43.770 00:13:43.780 hit like button and share it with your
00:13:46.650 00:13:46.660 friends and please do subscribe our
00:13:49.560 00:13:49.570 channel to encourage me to make such
00:13:51.600 00:13:51.610 videos thank you for watching

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