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  • OrganicE made the instructable Inline Digital Hydrometer1 week ago
    Inline Digital Hydrometer

    I think I might be in the overkill phase of this project already...

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  • OrganicE commented on Tecwyn Twmffat's instructable Inline Digital Hydrometer1 week ago
    Inline Digital Hydrometer

    I see, I went with the smaller tube because I wanted the highest possible pressure at the the sensor. Now that I've got it working I know that I'm at the top end of the scale for the sensor and I could use a larger tube and be within the range of the sensor. I imagine that's one way to adjust the pressure at the sensor, changing the overall volume of the line from the bottom of the parrot to the sensor that is? You can see the sensor in the center of the first picture, connected to the hose. The second picture is the floating hygrometer(sp?) with the azetrope(sp?) line in dashes. With the larger tube are you still having to inject air into the lines? Someone mentioned in a brewing beer forum that they used an aquarium pump to add air to the lines before they read the sensor. Than...see more »I see, I went with the smaller tube because I wanted the highest possible pressure at the the sensor. Now that I've got it working I know that I'm at the top end of the scale for the sensor and I could use a larger tube and be within the range of the sensor. I imagine that's one way to adjust the pressure at the sensor, changing the overall volume of the line from the bottom of the parrot to the sensor that is? You can see the sensor in the center of the first picture, connected to the hose. The second picture is the floating hygrometer(sp?) with the azetrope(sp?) line in dashes. With the larger tube are you still having to inject air into the lines? Someone mentioned in a brewing beer forum that they used an aquarium pump to add air to the lines before they read the sensor. Thanks for sharing this!

    Right that makes sense, this is static pressure not a flow...

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  • OrganicE followed Tecwyn Twmffat1 week ago
      • How to Distill Alcohol
      • Inline Digital Hydrometer
      • Capacitor Tester / Capacitance Meter
  • OrganicE made the instructable Inline Digital Hydrometer1 week ago
    Inline Digital Hydrometer

    I had great success with your setup. However in my trials I had to add a way to insert air in the the tube leading to the pressure sensor. Over time the fluid would flow into the tube to the level of the overflow. To keep the sensor accurate I had to use a clear tube and a IV port to inject air into the tube. At which point this worked great. My readings range between 22 and 35 (out of 512, 16-bit differential), from water to 90%ABV. I think a shorter height parrot may yeild a broader range of values. Any thoughts?

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