UNI-T 81B Scopemeter Problem

Discussion in 'General Electronics Chat' started by Farlander, Dec 10, 2008.

  1. Farlander

    Thread Starter Active Member

    Oct 14, 2008
    158
    0
    Hey all -- I blew the capacitance meter on my new scopemeter by trying to measure a hot circuit -- 12V 1A to be precise.

    Now the meter reads .243 nF all the time, except for jumps when removing contacts from a cap.

    Is this something I can fix or will I have to eat it?
     
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    5,005
    513
    I have one of these, but I'm afraid I haven't been brave enough to look inside yet.

    If there you have any questions about measurements on a working one ask and I will try to obtain them for you.

    If the rest of the funtions are working you haven't blown the input fuse.

    As a warning to others I did notice the sequence of available functions on the rotary switch is

    Off
    Volts
    Ohms
    Hertz
    microamps
    milliamps
    amps
    capacitance
    Off

    Having to pass Ohms to get from volts/off to other ranges is a worry. So far I have always disconnected the lead when doing this, which is a nuisance when switching back and fore between HZ and volts.
     
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