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I just got a Megger MIT410. Seems like its a high quality tool.

http://www.firstrow1.eu/watch/184885...oxing-ppv.html

I 2nd the 1587

Originally Posted by billygoat22

picked up an old one at yard sale today, an old simpson. opned up to put in battery and I think it uses a "B" battery.

what ohm ranges should a compressor test be set for?

I think a rule of thumb is 1 kohm per volt the motor is rated for.

Originally Posted by summerhelp

I have the yellow box hand cranker good for finding bad motor not so good for trending insulation breakdown over time.

Sure it is. Pick a favorite song and crank to the beat.

picked up an old one at yard sale today, an old simpson. opned up to put in battery and I think it uses a "B" battery.

what ohm ranges should a compressor test be set for?

I have the yellow box hand cranker good for finding bad motor not so good for trending insulation breakdown over time.

I normally use an MIT400. It does all I need it to.

Originally Posted by Peztoy

Any recommendations on a megger.
One thats sole purpose is to test motors insulation resistance on chillers. Like Megger MIT300.
Not a multifunction meter like fluke 1587.

What's wrong with the 1587? That's what I have an it works great, it's just the 1507 with meter components built into it. Although it is incredibly expensive.

here is my favorite: http://www.grainger.com/Grainger/AMP...XG3?Pid=search

it includes memory locations and a timer to use 'Polarization' type megging.

this is what I use...

http://www.grainger.com/Grainger/FLU...E68?Pid=search

megger selection

Any recommendations on a megger.
One thats sole purpose is to test motors insulation resistance on chillers. Like Megger MIT300.
Not a multifunction meter like fluke 1587.