Re: Voltage Regulators




Abstract Dissonance wrote:


WTF. I just switched my DMM down to 20V cause I was measuring it on 200 and
now its reading 7.74V with variations going from +- 1V about every second.

I didn't know I had to choose the right voltage range on my DMM to get an
accurate reading ;/ Is this true? That really sucks if so ;/

i.e., turning the switch to 200V gives me a reading of 4.4V and switching it
to 20V gives a reading of 7.74V. Any reason why it would do this? Low
battery? Messed up meter? Or do I just need to make sure to select the
proper range?(which seems kinda odd cause you would have to know it ~ before
hand).

Thanks,
Jon

Once in a while, I get flaky readings on a DMM. It usually means the
battery is low.

Try replacing the battery in your DMM.

Regards,

Mark

.



Relevant Pages

  • Re: MacBook Pro battery drain while sleeping
    ... up this morning and it's reading 0%. ... In fact it initially refused to switch on, though I'm typing using my allegedly 0% battery right now. ...
    (uk.comp.sys.mac)
  • Wrong readings possible from DMM with weak battery?
    ... I was reading 18 volts on a line which should have had 12 volts. ... Changed the 9volt battery in my DMM (the battery itself only showed ...
    (rec.games.pinball)
  • It LIVES!!!
    ... Well, after several interruptions, I finally got everything wired up ... paramaters I thought I needed. ... then the main switch to the compressor. ... I'm a little concerned that the oil pressure is reading in the high ...
    (rec.crafts.metalworking)
  • multimeter question
    ... sl> When i measure resistances with my dmm, i get a different reading if i ... The DMM ... bias diodes if needed. ...
    (sci.electronics.repair)
  • Re: Thermocouple mux 16 ch(4067) + A/D max187
    ... >i'm building a 16 ch nterface for reading 16 TC type K. ... Conventionally one would use a two CD4067/4051's etc or a CD4052 to switch ... But the AD595 incorporates amplification and ice ... so you would seemingly just need to assure that the thermocouple ...
    (comp.home.automation)

Quantcast