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Fluke
Forum Problem with old Fluke Scopemeter
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Forum Thread Details
  • Replies 22 replies
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  • Views 9569 views
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  • fluke scopemeter
  • fluke 123
Related

Problem with old Fluke Scopemeter

mudz
mudz over 5 years ago

Today, I received my most awaited thing of this year... After a long long journey it finally reach me.. Hehe ..  enough with suspense talk..

Few months ago like 5 months.. I bid for a scopemeter on ebay. This was the first time I did bidding thing. Okay, what stupid thing I did now...  Alright, Bidding shot up to almost double and I ended up buying this Fluke 123 Scopemeter which has a line on the display image  image

Now after being stuck to customs for almost four months due to no invoice, I finally got the parcel and paid 40% custom duty. image

This thing cost me fortune I could have purchased a nice 2 channel oscilloscope. Stupid me.. (probably till now shabaz will be thinking, this guy is idiot I warned him many times before but he doesn't even listen).. image

Now, this meter is not turning on, I believe after 5 months of no activity battery is probably dead. So I thought to charge it first. There is always a but.. When I checked its adaptors output voltage it is 22.3 volts when it should be 15 volts.
imageimageimage

 

Anyone already has this scopemeter? Should I charge it with it? ebay sender told me it was working when he send me the item, but did not about voltages.




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Top Replies

  • Gough Lui
    Gough Lui over 5 years ago +6
    Is this a "heavy" wall-wart adapter? I suspect it might be a regular unregulated linear power supply. With old fashioned linear power supplies which are *unregulated*, the voltage will approximate the…
  • michaelkellett
    michaelkellett over 5 years ago +5
    You've got a modern flashy one ! Mine is a PM97 made by Philips (before Fluke bought the Scopemeter line from them). Don't know exactly how old but the calibration sticker is dated 2002 ! I haven't used…
  • michaelkellett
    michaelkellett over 5 years ago in reply to mudz +5
    Never used it much, and haven't for more than 15 years. It's just not good enough (50MHz, not much memory) for the kind of work I mainly do - so I often end carrying a bench scope about. Got it from where…
  • andi98xp
    andi98xp over 5 years ago

    Hi, Gough Lui

     

    I am late on response but hopefully you get this....

     

    You are correct, I have a Fluke123, and the wall "BRICK" is an unregulated supply... Mine averages 20v... plus or minus, depending on wall voltage until i load it... then about 14v.....

    I actually changed my "wall wart" to a regulated 14.5v.   I used a switching supply from a business band radio charger and soldered the plug for the Fluke123 on to the output cord...

    Works great and no more wall busting brick...

     

    To:  Mudz...

    My power switch is temperamental on my fluke123... try just lightly tapping it fast... thats the only way i can get mine to come on... Probably switch bounce or something turning it off again when I push to turn it on... LOL

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  • arp007
    arp007 over 4 years ago in reply to Gough Lui

    Check polarity, it's backwards on some adapters. PM8907 check inner cavity is negative and outer ring is positive.

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