gas meter reed switch pulse counter

3D printed mount for reed switch, to connect my itron gas meter to the loxone home automation system

andrew.crockford

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Description

I made a small 3D printed mount for a reed switch. This connects directly to a module in the loxone system allowing me to get accurate meter readings in the home automation system.

Details

I printed the mount, made the tiny board.

Then I used a hot glue gun to glue the board onto the mount. And then held the reed switch in place with tape whilst soldering it onto the board.

Files

GasMeterPulseCounter.stl 3D model for printing Standard Tesselated Geometry - 31.82 kB - 10/20/2017 at 22:32		Download
GasMeterPulseCounter.skp Sketchup 3D model SSEYO Koan Play File - 76.26 kB - 10/20/2017 at 22:32		Download

Components

1 × reed switch something like this: http://www.ebay.co.uk/itm/5Pcs-Spst-Mka-14103-Reed-Switch-10-15At-2-X-14Mm-Lead-Glass-N-O-Ic-New-U-/132169106452?epid=706037460&hash=item1ec5e48414:g:E08AAOSwImRYID-g
1 × veroboard
1 × terminal block something like this: http://www.ebay.co.uk/itm/30Pcs-2-Way-2P-PCB-Mount-Screw-Terminal-Block-Connector-5-08mm-Pitch-/291567491139?hash=item43e2c6d843

Build Instructions

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1

Step 1

For using the pulse counter with loxone- to convert the m3 gas into kWh that loxone uses, I use a conversion factor of 9.184 as shown- I think this gives reasonable accuracy.