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  1. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    I know the type you mean. Note that if you’re not using a fan they are designed to be mounted vertically so as to get a natural convection effect (and always with thermal grease or a mounting pad between the SSR and the heat sink)...
  2. The-Engineer-That-Brews

    Horizontal S30 valve

    Will the push-fit connector give you enough torque to be able to unscrew the S30 Cylinder afterwards? I don't think I'd personally be brave enough to try refilling a cylinder :-)
  3. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    Here's an example of where to find the ON state voltage drop in an SSR datasheet. This is for the following, fairly typical device (RS stock no. 903-2970): a single pole SSR from I-Autoc The datasheet for it is here: https://docs.rs-online.com/3083/0900766b81457292.pdf The bit we are looking...
  4. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    Yes that's right. You can think of the voltage dropped across the SSR in it's "ON" state as being a pretty-much constant voltage of about 1.5 to 2V (you can find the exact value on the manufacturers datasheet). So the working temperature your SSR will stabilise to after a while (e.g. during a...
  5. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    Perhaps I’ve misunderstood, but I think of a “bypass” as a hard, physical conduction path that connects the heating element directly to the mains supply (see below). The reason you might want to do this is that all SSRs even when manually set to “100%”, have a voltage drop across their...
  6. The-Engineer-That-Brews

    Flat beer with tap system

    Don't just blindly crank up the pressure: the correct pressure depends on the temperature of the keg (CO2 dissolves much more easily at lower temps). Consult a carbonation chart for the correct pressure to use, such as the one here: https://ikegger.eu/pages/how-to-force-carbonate-brew-under-pressure
  7. The-Engineer-That-Brews

    April 2024 - lager/kolsch/pseudo lager to include European and American styles

    Really appreciate the detailed feedback - first time I've seen one of those sheets
  8. The-Engineer-That-Brews

    TETB’s Brewdays

    I’m not trying to become an alcoholic - just hoping to have a decent amount conditioned in time for the summer :-)
  9. The-Engineer-That-Brews

    TETB’s Brewdays

    Kegged off the Witbier and London Bitter from a couple of weekends ago. Lordy, that's quite a lot of beer 🤣
  10. The-Engineer-That-Brews

    Major equipment failure !

    Appalling! yet more conclusive proof, were it needed, of the built-in obsolescence in such equipment 🤣
  11. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    Hmmm - maybe you could mount a fan on the outside of the box, next to the heatsink, and a few holes on the opposite side of the case so it draws the air all the way through?
  12. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    @Vinylwasp I think the proper terminology these days is probably "Ferrules" or sometimes I've heard them called 'bootlaces' Maybe have a look at these... https://www.amazon.co.uk/dp/B0CNR84K8V ??
  13. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    Nice work there mate athumb.. great stuff. Are those spade connectors I see on the side rocker switch there? You might want to solder those instead, if they are taking any current ...
  14. The-Engineer-That-Brews

    Electrical engineers and electricians assemble! brew controller question

    In case it helps, here's a closer look inside one of the TETB power controllers. First and most importantly, ALL external metalwork (heatsinks, case, control knobs, etc) MUST be properly bonded to earth. This isn't "elf an safety gorn mad" ... it's just bloody sensible. You're dealing with...
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