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@ -269,7 +269,7 @@ Other:
## Appendix C: secret appendix ## Appendix C: secret appendix
Are you still reading? If yes, your are interested in and this appendix is for you.<br> Are you still reading? If yes, your are interested in and this appendix is for you.<br>
About sensors: do not use cheap "waterproof epoxy-covered" sensors. "Waterproof" lasts for a short time.<br> About sensors: do not use cheap "waterproof epoxy-covered" sensors. "Waterproof" lasts for a short time.<br>
Buy DS18B20s chips. Cheap or not cheap doesn't matter - I've never seen "bad" DSes. Solder sensors to the wires and cover the sensors with a two layers of 2-component epoxy resin as pictured below.<br> Buy DS18B20s chips. Cheap or not cheap doesn't matter - I've never seen "bad" DSes. Solder sensors to the wires and cover the sensors with a two layers of 2-component epoxy resin as pictured below. This will work for a years.<br>
<img src="./m_ds18b20_epoxy.jpg" width="500"><br><br> <img src="./m_ds18b20_epoxy.jpg" width="500"><br><br>
For sensors at compressor and discharge (+100°C and higher) use heat resistant sleeves at every wire.<br> For sensors at compressor and discharge (+100°C and higher) use heat resistant sleeves at every wire.<br>
<img src="./m_ds18b20_wires_protection.jpg" width="500"><br><br> <img src="./m_ds18b20_wires_protection.jpg" width="500"><br><br>