Testing meters with a custom resistance box.
Added 2019-07-01 21:57:42 +0000 UTCI've been meaning to do this for a while. Make a custom resistor test box and then use it to test a wide selection of meters.
https://www.youtube.com/watch?v=IDsIpBVCi04
Meters tested were a high accuracy Amecal, an old fluke, two old installation testers, a tacklife monster, a Uni-t UT210E and a couple of generic cheapo meters.
Comments
Don't you have the UNI-T UT 139C at home? I would like to see if it's in the range when you do another video with the resistance box :)
2019-07-08 04:45:24 +0000 UTCClive, have you ever made a video about a Decade Box and what they are used for?
Jeremy Impson
2019-07-05 04:22:25 +0000 UTCMy MasTech meter does the same thing.
Jeremy Impson
2019-07-05 04:20:52 +0000 UTChttps://www.digikey.com/product-detail/en/cinch-connectivity-solutions-johnson/105-0251-001/J10395-ND/4462185
Jeremy Impson
2019-07-05 04:19:17 +0000 UTCThere are test point adapters meant to accept the long needles that are common with probe leads.
Jeremy Impson
2019-07-05 04:19:07 +0000 UTCI was originally going to do that, but didn't like the idea of the screws on the face of the unit.
Big Clive
2019-07-05 00:20:29 +0000 UTCIt would have been easier to fit the sockets to the lid of the project box.
MarcT
2019-07-04 23:50:24 +0000 UTCClive-itis: noun [Medical] A side effect of the continuous watching of Big Clive videos, in which the viewer shows symptoms of being overcome by frequent urges to... "purchase stuff". Wellβ¦ thatβs a nice Uni-T clamp meter to add to my toolbox!
Phil in the kitchen
2019-07-04 22:52:20 +0000 UTCI looked up the CPC meter. The current price is Β£3.98 including tax. I'll tag one on the end of my next order of low ESR capacitors.
Nuts 'n' Proud
2019-07-04 13:57:30 +0000 UTCI own a little yellow DT830B meter and a Fluke 25 that came from the Ministry of Defence in a massive case. I just ordered a UNI-T UT210E.
Nuts 'n' Proud
2019-07-04 13:44:13 +0000 UTCThe little Uni-T clamp meter with the DC clamp function also reads RMS. It's got a staggering spec for its price.
Big Clive
2019-07-03 04:17:05 +0000 UTCThe cheapo with the rubber holster was from CPC. I popped the lid and had a look inside. It's the first I've seen with two ceramic 20mm fuses. One for 5A and one for 500mA. That means it can break high accidental fault current in a controlled manner. The standard replacement fuses also cost about 10p each which makes a refreshing change.
Big Clive
2019-07-03 04:15:40 +0000 UTCInteresting that the TACK meter kinda "settled down" into its readings, reading a percent high for a short period.
Dustin
2019-07-03 01:51:42 +0000 UTCI have that same meter as well as a newer Klein meter. I bought the Fluke over 20 years ago for $169 which made it the second most expensive piece of test equipment I have after the $600 Hitachi 40 Mhz scope. Great meter although it doesn't read RMS voltage.
George Cohn
2019-07-02 20:06:41 +0000 UTCI have the same old Fluke in grey, it's still my go-to meter on the bench depite it's age and some case damage, it never fails. I got a small meter from cef in a kit a while ago, think it was Atheos or something like that, from the word go the DC voltage measurement was off, turns out it uses it's own PP3 as a reference so when it's charge drops the reported DC voltage rises, I had some 18650 cells reading 6.2v, back to the Fluke!
The Tinkering Shed
2019-07-02 10:59:15 +0000 UTCThose small cheap meters are a boon for a youngster starting electronics, and are good enough to have one in the van glove box. (Your trusted CPC sells them for Β£3.30 - surprisingly Banggood can't match that). I hope you do test their other features in due course.
Keith Miller
2019-07-02 08:51:53 +0000 UTCI thought the same as you, Leonard - calibration would involve re-setting the meter somehow (a magic screw deep inside the workings, only accessible to the highly qualified calibrators). Looked the word up - very disappointed to find it means nothing more than to COMPARE with a traceable reference device. Nice little earner for someone - they don't even need a screwdriver - or even a spudger!
Keith Miller
2019-07-02 08:43:25 +0000 UTCI did ponder that, but I also have a pile of eBay meters to test too. I should do a bulk voltage, current and resistance test.
Big Clive
2019-07-02 04:24:26 +0000 UTCAre you sure it wasn't set to DC for such a low voltage reading?
Big Clive
2019-07-02 04:22:58 +0000 UTCI had a running argument with my calibration guy that what he did was certification not calibration because no adjustments were possible. He never agreed. Think he thought I was accusing him as being "certifiable".
2019-07-02 02:52:08 +0000 UTCVery nice. I must build one for my multitude of meters......
Chuck Kirchner
2019-07-02 02:43:45 +0000 UTCAww, I got all excited thinking you'd be diving into the box of aliexpress meters I sent you and then got all sad again Clive :D
Mark Dennehy
2019-07-01 23:04:00 +0000 UTCAwesome Clive congrats!
Michael Thompson
2019-07-01 23:00:47 +0000 UTCI fitted a 2nd MCB yesterday. Through the breaker that I thought was for that circuit. Grabbed the nearest multimeter, the cheapest one ever. Tested at about 2.5v which seemed a bit low. Went and got my Fluke. 240 volts dead on. Never assume your meter is right. It might be worth having a voltage version of this box.
evilution
2019-07-01 22:56:13 +0000 UTCits that usefull it will only be used every 5 years to check up if the old meters are still as accurate then its back in it`s box for another 5 years. but I do like your way of thinking tho. Infact I am sure that I have a box of such interesting objects but I just canny remember where it went once the wife asked me to move it from the lounge coffee table quite a few years ago. neet Idea
2019-07-01 22:54:45 +0000 UTCI guess you can go yellow to yellow for a combined ohms reading. Might be handy for fine tuning resistors in a project.
evilution
2019-07-01 22:45:32 +0000 UTC
