Re: Multimeters

Posted by Janicholson on December 14, 2005 at 06:48:14 from (199.17.6.175):

In Reply to: Re: Multimeters posted by BobOHIO on December 14, 2005 at 06:30:41:

Seasons greetings and solutions (of various types)
I believe two things are important to consider.
A digital multimeter is a very fine choice for some things:
1) Home wireing 110-220 and electronics
2) Battery voltage and direct current applications
3) ohms/resistance testing
I like Simpson, Fluke, Craftsman, Snap-On/Bluepoint

A digital meter has one (very important) failure. They do a very poor job of measuring intermittent (chopped) DC sources. They sample voltage and current using a sample rate that is so instantaneous that the display jumps all around the actual value. This often leads to the assumption of problems that are not there.

An inexpensive Analog Meter with an actual needle that moves on a scale (especially when adjusted or compared to the nice digital unit on a stable source of volts) will average the pulses and give usable information better.

The reason for the importance to us (YT types) is because the voltage regulators and cutout relays, and un-suppressed electrical systems on all older generator based equipment is manufactured to chop up voltage to control rates of charge and the output of DC in the armature/commutator/brushes.

Do both and be happy.

Jim (vast experience on this issue) Nicholson

Replies:

• Re: Multimeters rumplestiltskin 07:14:25 12/14/05 (0)

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