Products > Test Equipment
EEVBlog 121GW Discussion thread
cowasaki:
Ok I’ve pressed it and wobbled it and pressed it harder then suddenly it zeros. I think I might have a slightly dodgy button. That would explain things.... will have a proper mess later I need to get this cab back together.
firewalker:
--- Quote from: cowasaki on June 04, 2020, 06:57:29 pm ---Ok it's not working again....
Unless I'm missing something obvious.
I have a 56K resistor with probes attached either side. First I'm measuring with a brilliant cheap multimeter the Owen B35T+. It measures the resistor at 56K5 which is confirmed using using Keithley 2100. Then I haven't changed anything at all but simply moved the probes from the Owen to the 121GW. The 121GW measures the value as...... well it doesn't even recognise there is a value. I then put the probes back into the Owen and it is measuring the same. All I get out of the 121GW is OF.L. Not good for a meter costing 10-15 times the amount.
--- End quote ---
I have a similar issue on Ohms range. In my case is the rotary switch. If it is not centered exactly, it doesn't behave correctly.
Alexander.
cowasaki:
Yes after it worked that first time it now works every time (I will have to start using it more to make sure it doesn’t happen again before the warranty is up) I bought this 2-3 months ago but as I have a couple of Philips/fluke and a Keighley bench meter on my bench it doesn’t get used much (twice). I’m currently scrabbling around on the floor trying to rewire a cab with speakers that don’t belong in it! I was getting more and more annoyed :-) it’s working now and I can get back to my nice soothing valve amplifiers.......
cowasaki:
Fire walker,
I think it was just that the button was stiff from new or not seated right. It’s working fine now and all the other buttons SEEM to be fine. I’ve only used it once before. I can’t use it as my main DDM as I build valve amplifiers and I’m messing with voltages higher than 500v which it didn’t want to measure (no doubt there will be a way to measure them and I’ll have to check the destruction book to see). I’ve not spent any real time with it. I bought it on a whim when I got a refund for a camera for my bench scope.
ornea:
Not my go to meter as it makes me work hard to get results but I can report it spent a night in torrential rain and after a drying session appears to be fine.
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