Can the ESR function be used to do reliable testing of capacitors while in-circuit?
316382
In my opinion, no. Unless you know the exact circuit configuration and can definitely rule out parallel impedance or nonlinear components around the cap. There is quite a bit of info online about the tester and the signals used to execute the tests if you google around. Here is one example. It is in German but google will translate for you: http://www.mikrocontroller.net/articles/AVR_Transistortester . There is more if you look. I, myself, do not use this device for in-circuit testing.
316383
I found that the ESR function is not reliable testing capacitors while in circuit. It's not very reliable testing capacitors out of circuit.
316384
Possibly. I could not get the unit to function reliably at all. I waited too long to test it so I'm stuck with it. I was not able to do consistent testing even out of the circuit. No instructions. Buttons that don't fit the switches. I wish that I had bought something better.
316385
You can but it will activate the circuit because it's probe voltage is too high, so it's really not meant to. If you want to do in circuit measurements get a dedicated ESR meter. The ESR function on this device isn't really very accurate anyway, it's mainly useful for transistor testing and LCR.
1900830
sorry - no insight here. my habit is to not multi-task with electronics, particularly when an electrical source is involved. neither me nor my electronic lineup have been electrocuted as a result.
2247352
Don't know but probably not reliably. It would depend on the amplitude of the signals the tester uses to execute the tests and the nature of the circuit that the cap is in. There are lots of comments/blogs out there about this tester if you google around.
794133
Hello, This is a great analog meter which is perfect for testing all different types of diodes but not a great tool for testing capacitors. I would highly recommend a ESR meter for testing Capacitors. Hope this helps.
1100943
Yes it easily tests TR & TRS 1/4" cables. In the case of TR cables, the tester will show that the Ring & Sleeve spots on the connector are connected together on the 9 indicator LEDs. (That is true of all TR connectors.)
794132
Hello,This is a great analog meter which is perfect for testing all different types of diodes but not a great tool for testing capacitors. I would highly recommend a ESR meter for testing Capacitors. Hope this helps.
290359
Use a Non-Contact Voltage Tester prior to touching any electrical component if in doubt
1938137
If you have a DVM or voltmeter you can run a continuity check on the driver, if it's an open circuit then the response from Christopher J. is, indeed, the correct one.
967587
No, absolutely not. This is a stand alone tool for electrical circuit testing on all vehicles. It checks circuits for power, for grounds, for opens, and shorts. You can also power up a circuit with the Power Probe, and then check for continuity. -- An essential tool for automotive electrical troubleshooting.
1135496
Yes and Yes! Fieldpiece are very good and can test capacitors with no problem! You have to ohm it out to make sure it's good
717020
No...used to measure circuit installation..grounding, reversed polarity, open neutral, ect.
1894190
It's not stated due to the flux capacitor reading being negligible at best. I would suggest staying at a Holiday Inn Express!
2090911
This device actually does work by measuring the inductance or induced magnetic field surrounding an energized conductor. I have never heard of it referred to as an inductance tester though.
2058016
The instructions with my tester were very basic, but accurate. Written instructions included with any cheap capacitor tester, or multimeter are minimal at best. If you don't know how to use a cap tester it's best not to use one, until you take a class or two, large caps can kill you if you don't know what you're doing.
629525
This meter has no way to test capacitance, but our YX-360TRD will do it, check the link:Sunwa YX360-TRD 7-Function 16-Range Analog Multimeter With One Touch Capacitance EstimationThanks.
2155562
As far as I know, it can only be used to determine if a capacitor is shorted, by using the resistance (ohmmeter) scales.
225684
I've not used mine much, but the readings in capacitance mach the value of known good capacitors. I use a simple volt/ohm meter to check open or shorted capacitors. I can see lower than marked values on very old capacitors.