Products > Test Equipment
Fluke 189 fails capacitance auto range, other
Finderbinder:
--- Quote from: bdunham7 on March 21, 2023, 01:29:38 pm ---
--- Quote from: Finderbinder on March 21, 2023, 10:12:03 am ---So my UT71E is highly superior to 189?
--- End quote ---
Perhaps! Find a 20-50pF capacitor and measure it with both instruments and see how they do.
--- End quote ---
You are right, at that range UT71E is near useless :-- while 189 counts almost each one pF.
BeBuLamar:
My Fluke 189
In capacitance probe not connected it shows 0.070 nF.
With probe shorted it shows
0.001 mV DC
0.030 mV AC
0.0035 V AC.
So it's about the same as your meter.
Fungus:
--- Quote from: BeBuLamar on March 21, 2023, 11:27:51 pm ---My Fluke 189
In capacitance probe not connected it shows 0.070 nF.
With probe shorted it shows
0.001 mV DC
0.030 mV AC
0.0035 V AC.
So it's about the same as your meter.
--- End quote ---
With my 187 I get:
Capacitance mode, no probe: 0.068nF
0.001 mV DC (ie. 1 count)
0.015 mV AC ...but if I wave my hand near the meter it jumps up into the hundreds of mV.
0.0029 V AC.
So about the same as yours.
The plural of anecdote is "data", right? :popcorn:
Topdedcenter:
Came here looking for answers regarding my FLUKE 189 that does the same thing in capacitance mode. I actually opened up my meter first, found the leaking supercap, then started browsing around the forums and found that it can simply be removed since replacements are near impossible to find at this point. But the cap has been removed and the meter still turns on and measures the same standing capacitance with/without leads attached. Thanks for all the info.
Btw, i found this meter at a yard sell for like $30 from a dude who appears to have purchased a government bid wholesale shipment. There were a couple more at the time, and i regret not grabbing them, oh well. It's a solid meter and has a much faster reading response time than the basic flukes used at work.
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