It wouldn't damage any meter with a proper CAT rating.
OTOH it might skew the test results by giving some meters a head start. eg. Nether the Fluke nor the Hioki are showing "0L" at the start of each test.
There's a place that sends you free multimeters? For free?
Don't let that information reach the therapy thread.There’s a therapy thread? Please share, my best friend needs multimeter obsession help.
https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/
I found this video where he pulls apart the Yokogawa. Looks like they have some sort of gas tubes. The Gossen used GDT's and held up very well in the transient tests. The Keysight meter I looked at also used GDTs and was damaged early on in the testing.
Does your meter look the same inside as this one?
Thanks for taking the pictures. Looking forward to seeing them.
Looks like I am one of the unlucky ones that only got shipped a replacement knob but no shim ; - ;
Have contacted Dave to try and get the shim re-shipped
I got the switch shim fix and new knob and installed it today. The knob itself is much tighter now, and it seems to have helped the turning off issue I was constantly having near the Ohms and power selection. For a little bit, I was still having the same issue where the multimeter was turning off, but after a little bit of time, it seems to have settled in, and I can't replicate it even with some spirited jiggling.
Looks like I am one of the unlucky ones that only got shipped a replacement knob but no shim ; - ;
Have contacted Dave to try and get the shim re-shipped
I had a fairly long logging session recently that logged DC V while charging a 12V battery. I left it on the default logging rate, thinking that was once per second, but it turns out that my meter defaulted to "0", so according to the manual was actually logging at the fastest rate of around 200ms.
Around 25-26 hours later I went to the meter and saw a voltage of around 13.67V. My victron BMV-712 told me that current down to nothing, so that was as far as the charger was going to take it. I stopped the logging, and the beginnings and end of the log file look like:
START,2018/04/24,16:45:07,
ID,170800000,
INTERVAL,000,sec,
,MAIN,,,SUB-1,,,SUB-2,,,Remark,
No. ,Func. ,Value,Unit,Func. ,Value,Unit,Func. ,Value,Unit,
1,DCV,013.182,V,,,,,,,,
2,DCV,013.188,V,,,,,,,,
3,DCV,013.187,V,,,,,,,,
4,DCV,013.187,V,,,,,,,,
5,DCV,013.187,V,,,,,,,,
6,DCV,013.187,V,,,,,,,,
[cut]
364219,DCV,013.529,V,,,,,,,,
364220,DCV,013.530,V,,,,,,,,
364221,DCV,013.529,V,,,,,,,,
364222,DCV,013.530,V,,,,,,,,
364223,DCV,013.529,V,,,,,,,,
364224,DCV,013.529,V,,,,,,,,
364225,DCV,013.530,V,,,,,,,,
364226,DCV,013.529,V,,,,,,,,
MAX,67374,DCV,013.531,V,
MIN,1,DCV,013.182,V,
Something is very odd here. The last sample was 13.529V, and the max was recorded as 13.531.
I am not sure what happened here. It doesn't help that the meter only logs sample count, and not time. If I really assume that it took a sample every 200ms, then the meter only logged for a little over 20 hours. But I know that I stopped it a minimum of 25 hours later. So, OK, 200ms is approximate. So maybe its is more like every 250ms on average...that would work out to a little over 25 hours (after 364226 samples).
But if it really was logging up until the point that I stopped it, then why were there no records of the 13.67V readings that I saw on the display (and was also reported by the Victron BMV-712)?
I got the switch shim fix and new knob and installed it today. The knob itself is much tighter now, and it seems to have helped the turning off issue I was constantly having near the Ohms and power selection. For a little bit, I was still having the same issue where the multimeter was turning off, but after a little bit of time, it seems to have settled in, and I can't replicate it even with some spirited jiggling.
Maybe there was some form of contaminant on the pads or contacts that eventually wiped away?
I am not sure what happened here. It doesn't help that the meter only logs sample count, and not time. If I really assume that it took a sample every 200ms, then the meter only logged for a little over 20 hours. But I know that I stopped it a minimum of 25 hours later. So, OK, 200ms is approximate. So maybe its is more like every 250ms on average...that would work out to a little over 25 hours (after 364226 samples).
Question...Does the 121GW log counts not time because it lacks a real-time clock? Could some sort of time-stamp be implemented in the log data in future based on the calculated time from sampling frequency? This would really be helpful.
Just a few questions:
- Did you read the 13.67V on the 121GW or another device (Error potentially in reference)
- Does your 121GW measure 13.5V correctly if simply given DC (Error potentially in calibration)
- What version of firmware do you currently have (So I can test against that version)
- Did sample 67374 correlate to the 13.531 V MAX value?
- What was your charging setup?
Question...Does the 121GW log counts not time because it lacks a real-time clock? Could some sort of time-stamp be implemented in the log data in future based on the calculated time from sampling frequency? This would really be helpful.RTC is U7. Here's the data sheet.
Update has been released to the app stores, likely hasn't updated on both yet but these issues should all be resolved now, we also have a new firmware version which will be resolving one of the other issues (when the voltage in VA mode is above 32767 approximately, this firmware update hasn't been released, this issue was a packet issue not a app issue so for those values you'll need to wait for the next firmware update).