Warning: The new Fluke 87V versus the older 87V Max on a recent King Air job

I had to chase down a phantom voltage drop on a King Air 350 last week. Grabbed my shop's new 87V, got a clean reading. For a sanity check, I used my personal 87V Max from 2018. The Max showed a 0.3V fluctuation the new meter completely missed, which was the root cause. That older True RMS just seems to pick up the noise better on these 28V DC systems. Anyone else found a specific meter that catches gremlins the newer ones don't?

2 comments

2 Comments

karent751mo agoMost Upvoted

So the new fancy meter is basically a polished rock that looks good but can't find the actual problem? Guess they don't make them like they used to, my old beater meter is the only thing that catches those weird little spikes. It's like the new software updates that just hide the glitches instead of fixing them. Maybe they should just sell us the old circuit boards in the new plastic cases.

finley_lopez981mo ago

Interesting. My new 87V caught a tiny ripple on a bus that my old meter smoothed right out. Sometimes the newer filtering is actually what you need.

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