Re: [DIYbio] Help Fix an Invitrogen Blue Light Transilluminator

Use a multimeter to bridge the gap, and read the current.
As a rule of thumb, you can generally double the normal operating current to get a safe fuse rating. The circuitry can handle double the normal current for as long as it takes the fuse to blow.

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On Wed, Aug 3, 2016 at 1:02 PM, Cory Tobin <cory.tobin@gmail.com> wrote:
I have identified the problem :)

I poked around and didn't find any components that were improperly soldered.  All the connections looked good.  So I pulled out my multimeter and found that there was no continuity across the fuse.  When I bypass the fuse with a wire the device works great.

Unfortunately it's a surface mount fuse with nothing identifying the current rating.
http://i.imgur.com/DczdSKH.jpg
It connects directly to the +24V DC input.  Is there any way to identify the current rating for the fuse without talking to the manufacturer?

-Cory

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