Thread: Multi-meter Question
11-03-2009, 05:40 PM #1
Is this fine for testing stuff on a PWC?
11-03-2009, 05:44 PM #2
11-03-2009, 05:45 PM #3
Digital Multi-Meters (DMM's) are typically better for testing circuits, resistances of coils, etc. because they impose less of a load on the part being tested. Analog multimeters are great for measuring changes in values, because you can physically see the needle sweep across the meter as the value changes, but they have their own inherent resistance which adds load to the circuit. DMM's usually have resistances in the megaohm range, thus putting negligable load on the circuit being tested. What I am trying to say is, yes, an analog meter will work, but a DMM will be more accurate.
I used to be an electronics tech in a past life...
11-03-2009, 05:55 PM #4
yeah I figured a digital would be better like a Fluke. But isn't having that sweeping meter when your adjusting stuff come in really handy? almost like it tells you your having a problem by ever so slightly moving instead of a led number? Is there any procedure where this would be more benifical to use instead of a digital? or has the digital world just taken over and this is old school?lol
Yeah, I was a chef in an earlier life. Hey that means I could cook up a storm at JAGGEDROCK next year! Or Havasu. Beach BBQ!
11-03-2009, 06:11 PM #5
Analogs meters would be better for testing things like fuel level sending units and other variable units because you can watch the needle move back and forth as you move the sensor up and down. Its good for telling if you have a 'dead spot' in the sending unit. Both have their advantages. And there are good quality units made in each style. I use a snap-on DMM with a 'virtual' analog scale for cases where an analog meter would be more appropriate. Yours will work fine for most things that you would come across with these ski's unless you start modifying the CDI units internally or something like that.
11-03-2009, 06:40 PM #6
I see what you mean with the sending unit. That's the kind of things I was talking about!. little tricks to dial stuff in. Or checking for shorts or resistance and actually seeing it on the needle moving.
11-03-2009, 06:49 PM #7
I have both and they both have there place.. Simpson for analog and Fluke DMM..
11-03-2009, 07:35 PM #8
- Join Date
- Sep 2006
I've got a Fluke that I've used for many years.
BUT... I wished I bougtht the meter with the Temperature Probe .Something to think about.
Just my 2 cents.
11-03-2009, 07:44 PM #9
Hey, that reminds me, I got a temp. probe with mine too!
I have no idea where I put it, haven't use the temp probe in years!
Also got an inductive ammeter pickup, great for checking cranking amps and such.
11-03-2009, 11:46 PM #10
Alot of auto circuits use a 5volt reference,applying 9 volts could screw things up.
I'm not sure how sensitive watercraft electronics are. ( I would not want to overload my MFD / CDI circuits,seems like MFD's fail just fine on their own )
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