Hello All,
I have just bought a Fluke 8060A, which seems like a decent meter, although I'm a bit annoyed at one part of the design of the meter.
For the Amps protection, it has 2 fuses in series. A 2 amp small glass fuse in the battery compartment and a 3a/600v proper HRC 'Buss Fuse' inside the meter.
The little glass fuse had obviously been replaced before I bought the meter, but not the internal HRC fuse... It annoys me that I had to break the (admittedly out of date) calibration seal to be able to replace the fuse.
I have never seen anything that uses 2 different fuses in series ever before. Surely using a little glass fuse in series with the HRC 'proper' fuse totally negates the HRC fuse? or am I missing something? The glass fuse is 2a and the HRC fuse is 3a so designed for the glass fuse to blow first?
Can anyone explain why they have done it this way? Cos I cant understand it!
Cheers,
Norm (aka Warf)
ps i can upload full schematic if required