Products > Test Equipment
Bricked Fluke 177
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electr_peter:
It's not the first time Fluke 177 damage from "self measurement" had been mentioned in this forum fluke-177-failed-and-need-support-to-repair

Most DMMs are not designed to measure their own battery voltage with probes. Also, manuals recommend to remove probes when changing batteries. See topic dmm-reading-it_s-own-battery-voltage-low-voltage-detection for discussion and more sad cases of :-BROKE DMMs.
andyB2022:
I've got an used 87 V which I enjoy better, maybe because of more features and more accuracy...
Still miss the robustness and slimmer feeling of the 17x series.
BeBuLamar:

--- Quote from: andyB2022 on September 04, 2022, 06:12:29 pm ---I've got an used 87 V which I enjoy better, maybe because of more features and more accuracy...
Still miss the robustness and slimmer feeling of the 17x series.

--- End quote ---

The 87V is certainly a better meter than the 17x series. I do not see the 17x series as more robust than the 87x. The yellow cover of the 17x series tend to come off.
boggis the cat:

--- Quote from: BeBuLamar on September 05, 2022, 10:59:20 am ---I do not see the 17x series as more robust than the 87x. The yellow cover of the 17x series tend to come off.

--- End quote ---
They only come off if you get certain solvents/oils on the meter.

Customers that work with automotive or HV transformers tend to get the delaminating cover issue, but nobody else does.  They are oily/greasy to the touch, and require cleaning before you can calibrate them (let alone try to attach a label).
andyB2022:
After some time I came back to the unit.

In the video below you can see how the impedance is changing between 4.2k and 0 ohms when the switch is on the mV. At the moment is changing the beeper beeps. VDC range has fixed 10M impedance and it doesn't move at all.

Here is the video:


If I try to measure the voltage between COM and V jacks, on mV range the voltage spikes up to 6.9V, on the VDC range none of that happens, the "voltage" there is 0V.

mV range


I have measured lots of things while comparing with the 87V schematics and most of the measurements are correct... Couldn't find anything that drew my attention.

The Fluke ASIC SL10327 has NO connections to the main microcontroller, only towards the 20bit ADC. Is that the way it needs to be?
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