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Noritsu v30/50SM racks


Jason_

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Posted (edited)

Hi Dave! How are you doing!
Sizes seem to be the same, problem is how SM racks are built. RA racks are "open" design, SM are "closed" design. Let's call it like this for now. In the RA machine chemistry flows much easier around the negative, in the SM machine the film is "hidden" inside the rack and there is not much space for the chemistry to flow around it.

Edited by Jason_
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20 minutes ago, Jason_ said:

Hi Dave! How are you doing!
Sizes seem to be the same, problem is how SM racks are built. RA racks are "open" design, SM are "closed" design. Let's call it like this for now. In the RA machine chemistry flows much easier around the negative, in the SM machine the film is "hidden" inside the rack and there is not much space for the chemistry to flow around it.

As far as I can remember there is a hole in the bottom of the rack that locates with a pipe sicking up on the bottom of the tank.

On the SM model PDD-5 11L/min pumps are used on P3-P8. On P1 and P2 PDD20H 15L/min pumps are used.

So it looks like slightly more powerful pumps are used for SM for better circulation

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