Capacitance Meter
Capacitance Meter
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Digital RCD Capacitance Meter Tester Multimeter SMD |  |
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US $27.70 | 25m |
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LCR INDUCTANCE CAPACITANCE RESISTANCE METER w Lead T86 | |
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US $21.38 | 35m |
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LCR RCL INDUCTANCE CAPACITANCE RESISTANCE METER w Lead | |
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US $12.99 | 53m |
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Boonton 72BD Digital Capacitance Meter | |
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US $645.00 | 1h 1m |
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Boonton 72A Capacitance Meter | |
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US $495.00 | 1h 1m |
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HP Agilent 4268A 001 120Hz 1kHz Capacitance Meter | |
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US $4,450.00 | 1h 56m |
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HP Agilent 4278A 1kHz 1MHz Capacitance Meter | |
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US $1,950.00 | 1h 56m |
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HP Agilent 4268A 001 002 120Hz 1kHz Capacitance Meter | |
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US $4,950.00 | 1h 57m |
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HP Agilent 4288A 1 kHz 1 MHz Capacitance Meter | |
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US $4,950.00 | 1h 57m |
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Capacitor Capacitance Meter tester 6013 New | |
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US $29.00 | 2h 8m |
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New 3 1 2 Capacitor Capacitance Meter 200pf 20MF | |
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US $59.99 | 4h 36m |
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Capacitance Capacitor Cap Meter Tester DMM Multimeter | |
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US $19.90 | 7h 38m |
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LCR INDUCTANCE CAPACITANCE RESISTANCE METER TESTER | |
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US $10.10 | 8h 23m |
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Digital AC DC Clamp Meter Multimeter Capacitance Ohm | |
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US $35.90 | 10h 2m |
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DY6013 Capacitor Capacitance Tester Meter up to 20000uF | |
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US $55.00 | 13h 9m |
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Digital LCR Capacitance Resistance Meter Tester NEW AR | |
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US $27.95 | 14h 14m |
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Digital Capacitance Voltmeter Test Meter Multimeter | |
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US $20.70 | 15h 36m |
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Digital Meter Frequency Capacitance Capacitor Resistor | |
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US $24.99 | 15h 41m |
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HQRP Digital Capacitance Resistance Inductance Meter | |
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US $31.95 | 15h 44m |
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DUAL DISPLAY DIGITAL CAPACITANCE METER DSCTESTER | |
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US $41.99 | 15h 52m |
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ADE 3500 CAPACITANCE DISPLACEMENT METER GUARANTEED | |
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US $399.99 | 22h 55m |
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LCR INDUCTANCE CAPACITANCE RESISTANCE METER TESTER DIY | |
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US $10.10 | 1d 6h 23m |
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UNI T UT601 Modern Inductance Capacitance Meters | |
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US $26.00 | 1d 8h 34m |
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DMM Capacitor Capacitance Meter tester mF uF Cap C New | |
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US $29.00 | 1d 10h 2m |
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inductance capacitance LCR4070 digital LCR Bridge Meter | |
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US $49.00 | 1d 10h 27m |
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HQRP Digital LCR Capacitance Resistance Meter Tester AR | |
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US $31.95 | 1d 11h 53m |
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DM4070 LCR Inductance resistance capacitance meter w wa | |
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US $35.99 | 1d 13h 40m |
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Tenmax 72 040 Digital Capacitance Meter | |
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US $60.00 | 1d 13h 51m |
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ADE Technologies 3500 Capacitance Displacement Meter | |
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US $199.99 | 1d 14h 31m |
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BK Precision Dynascan 820 Capacitance Meter | |
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US $101.25 | 1d 20h 56m |
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1000 Amp Clamp on AC DC Capacitance Frequency Meter NEW | |
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US $89.99 | 1d 23h 13m |
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Meter Capacitance Checker Tube Amp Home Inspection Volt | |
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US $39.99 | 2d 14m |
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LCR INDUCTANCE CAPACITANCE RESISTANCE METER w Lead | |
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US $10.99 | 2d 21m |
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New UNI T Modern Inductance Capacitance Meter UT 603 | |
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US $34.99 | 2d 23m |
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TESTER CAPACITANCE ADAPTOR METER KIT FOR DVM BY RAINBOW | |
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US $12.50 | 2d 40m |
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High precision L C Inductance Capacitance meter | |
0 Bid | US $9.80 | 2d 1h 11m |
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BRIGGS STRATTON Capacitance Frequency Meter 19543 NEW | |
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US $75.00 | 2d 1h 22m |
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LCR RCL INDUCTANCE CAPACITANCE RESISTANCE METER W7Y | |
1 Bid | US $.01 | 2d 1h 27m |
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LCR RCL INDUCTANCE CAPACITANCE RESISTANCE METER | |
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US $10.99 | 2d 2h 5m |
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Digital RCD Capacitance Meter Tester Multimeter SMD a0 | |
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US $26.50 | 2d 2h 49m |
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Digital AC DC Clamp Meter Multimeter Capacitance Ohm C0 | |
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US $35.74 | 2d 2h 56m |
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RohdeSchwarz Capacitance Meter Type KRT C Messgeraet | |
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US $201.60 | 2d 4h 38m |
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Frequency Counter Digital or Capacitance Meter Not sure | |
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US $4.99 | 2d 4h 53m |
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LCR RCL INDUCTANCE CAPACITANCE RESISTANCE METER DE3 | |
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US $21.77 | 2d 5h 40m |
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Meter Capacitance Capacitor Testeralligator clamps | |
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US $17.49 | 2d 12h 23m |
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20mF to 200mF Capacitor Tester Capacitance Meter A6013L | |
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US $30.88 | 2d 14h 49m |
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AL6013 Capacitor Capacitance Meter Tester up to 20mF | |
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US $34.90 | 2d 15h 52m |
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DM4070 LCR Inductance resistance capacitance meter | |
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US $47.49 | 2d 15h 53m |
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EC153 Capacitor Capacitance Tester Meter up to 20000uF | |
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US $57.00 | 2d 15h 55m |
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LCR RCL LC meter TH2821A inductance capacitance 10kHz | |
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US $234.99 | 2d 15h 56m |
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LCR RCL Inductance resistance capacitance meter 4070 | |
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US $25.99 | 2d 15h 56m |
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TES1500 Capacitance Tester Meter up to 20mF 20000uF | |
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US $62.99 | 2d 15h 58m |
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DMM Digital Meter MultiMeter Capacitance Tempurature | |
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US $19.99 | 2d 18h 57m |
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Digital High Accuracy Capacitance Meter 01 pF to 20 mF | |
0 Bid | US $39.95 | 2d 20h 13m |
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Triplett 5505 capacitance Meter w cable Good condition | |
1 Bid | US $.99 | 2d 21h 23m |
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Agilent 4288A Capacitance Meter LikeNew | |
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US $4,395.00 | 2d 21h 30m |
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Bel MERIT Model CM210 Capacitance Meter | |
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US $35.00 | 2d 23h 3m |
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LCR RCL Inductance resistance capacitance meter T86 | |
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US $27.95 | 2d 23h 39m |
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UNI T UT 601 Modern Inductance Capacitance Meters ut601 | |
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US $28.00 | 3d 2h 50m |
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LCR Inductance Capacitance Digital Multimeter Meter RCL | |
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US $23.30 | 3d 11h 38m |
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Digital AC DC Clamp Meter Multimeter Capacitance Ohm A0 | |
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US $36.60 | 3d 13h 5m |
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Agilent 4288A 1 kHz 1 MHz Capacitance Meter Manual | |
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US $65.00 | 3d 15h 40m |
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Capacitance Meter Kit DIY Low Cost AVR Evaluation Tool | |
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US $13.45 | 3d 17h 43m |
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HP 4278A Capacitance Meter | |
0 Bid | US $795.00 | 3d 18h 27m |
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Dynascan Digital Autorange Capacitance Meter 830 RARE | |
1 Bid | US $4.99 | 3d 19h 19m |
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Modern Inductance Capacitance Meters UT603 2nF 600uF | |
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US $34.99 | 3d 23h 59m |
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Modern Inductance Capacitance Meters UT601 200pF 20mF | |
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US $25.99 | 3d 23h 59m |
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Digital RCD Capacitance Meter Tester Multimeter SMD A0 | |
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US $28.90 | 4d 1h 6m |
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Digital AC DC Clamp Meter Multimeter Capacitance Ohm A1 | |
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US $36.60 | 4d 3h 1m |
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ADE MicroSense 3401 Capacitance Meter Capacitive Sensor | |
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US $99.99 | 4d 4h 48m |
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LCR INDUCTANCE CAPACITANCE RESISTANCE METER w Lead DE3 | |
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US $27.50 | 4d 5h 4m |
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LCR RCL INDUCTANCE CAPACITANCE RESISTANCE METER T86 | |
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US $26.95 | 4d 6h 28m |
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LCR RCL INDUCTANCE CAPACITANCE RESISTANCE METER Leads | |
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US $19.99 | 4d 8h 40m |
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ET3142 AC 400A Clamp Meter Mini Size w Capacitance | |
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US $43.99 | 4d 9h 8m |
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Keyence CAPACITANCE ELECTROMAG FLOW METER FD M SERIES | |
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US $155.00 | 4d 9h 33m |
discharge capacitor using volt meter?
i dont know the capacitance of it but its about the size of a AA battery and i need to discharge it. can i just turn my voltmeter to 2M (2 million) ohms and touch the leads to the capacitor?
No. To discharge a capacitor you need to give it a current path to move the charge (electrons) from 1 terminal to the other. Your voltmeter represents a very high impedance because it is designed NOT to have current flowing through it. If you set it to resistance (where it would say 2 million ohms) it is designed to only have the current generated by its own battery flowing through it. You may break the meter.
The quick and dirty way - put a piece of metal between the 2 terminals. This allows for a low impedance path between the 2 and it will discharge instantly. The risk is that the cap may blow up because it was discharged too quickly.
The best solution is to use a 100 ohm resistor or something between the terminals - that discharges the cap in a reasonable time (say 1 second). That way it is safe and quick.
That being said, I would just put a piece of metal or wire across the cap. it is quick, usually works without a hitch, and if it does blow up that is cool too.
Simple Ways To Understand The Filter Capacitors In Electronic Circuits
Have you ever wonder why there are so many capacitors in electronic circuit board? They are all scattered through out the whole electronic board. You could see mica capacitors, ceramic capacitors, tantalum capacitors, aluminum electrolytic capacitors, paper capacitors and etc. All of them in the circuit have a function and you can find widespread applications in the electrical and electronics fields. Some of the common situations in which capacitors are employed are as follow:
Electric Field-Power factor correction;-Motor start and run; and -Welding (stored energy in capacitor discharged rapidly)
Electronic Field - Act as filter to remove ripple in power supplies;
- As inter stage signal coupling capacitors- A capacitor will not pass DC, but an AC signal will go through;
- Tuning resonant circuits, oscillator circuits;
- Decoupling in power supplies and amplifiers;
- As part of timing circuit; and
- As waveshapers and filters
In today’s article I’m going to talks about capacitor act as filter to remove ripple from power supplies. Once the AC signal from output transformer passed through diodes it would become an uneven DC. A filtering section is used to smooth out this uneven DC signal. Usually, the filter includes one or more capacitors. The capacitors are then placed between the DC line and ground. The value of the capacitors is chosen carefully to give the filter circuit a certain timing constant or TC. This TC measures how fast the circuit responds to changes in the voltage level. If the circuit has just the right timing constant, it can act to smooth the output voltage, and once the voltage leaves the filter stage, most of the variations or “ripple” should be removed. The AC has been converted into a smooth DC.
If the filter capacitors fail either increase in ESR reading or lose some of its capacitance, the AC signal will be allowed to remain with the DC, creating a signal which is noisier than it should it. This unwanted noise signal can cause problems in electronic circuit. If it happen in computer monitor power supply, the bad capacitors can cause power to blink, low power, voltage shutdown, no display, intermittent display problem ands many more. Now you understand why every time when a monitor has the complaint like above, I would first check all the secondary side filter capacitor with my ESR meter. If all capacitors checked okay I would then move on to another circuit. That’s just one of my troubleshooting methods.
Next, have you seen all the little blue caps around a circuit board? Those small value caps (usually 0.1uf 50 v or 104) are also used to remove noise from electronic circuit. Then what about the function of big filter capacitors we have just mentioned above-aren’t they already removed the unwanted signal? Why not one filter capacitor is enough for each DC line voltage? The answer is that the big filter capacitors (large value) at the secondary side of power supplies is to smooth the DC and remove unwanted lower frequency noise. Meanwhile the small blue resin coated ceramic disc capacitor is more effective in shorting very high frequency noise spikes to ground and to preventing it from getting back into the power supply line and traveling to other circuits.
Hope you are now understand why there are two different types of capacitors in the DC supply line. By the way for the small blue capacitor you can check it with analog meter set to X10k ohms (charge/discharge) or just use a digital capacitance meter to check for the capacitance value. The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.
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