How To Build A Temperature Sensor With The Victron Cerbo Gx
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- čas přidán 23. 07. 2024
- If you have a Victron solar system, you probably have a Cerbo GX and if you do you might want to make use of some of the inputs that are on offer. I wanted to use the temperature inputs, however when I looked at the Victron sensor I was shocked by the price. Having done some research I found the component that the sensor is at a fraction of the cost. So much so I bought all the components for 10 for around the price of one genuine sensor.
The sensor is really straightforward to build, simply solder two wires to the LM335 and cover with a bit of heat shrink. You can just plug a LM335 directly into a Cerbo GX but you're only measuring the temp at that point. Adding a length of cable allows to mount the sensor at a remote location.
LM335 temperature Sensor: - amzn.to/3VZWLcx
Twin cable: - amzn.to/3FWeoVm
Solder: - amzn.to/3uRZitJ
Ferrules: - amzn.to/3YoDx22
Heat Shrink: - amzn.to/3FV5Myd
Tube: - amzn.to/3HC1lJJ
Potting Compound: - amzn.to/3BGiQVv
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00:00 Intro
00:10 Sensor pin out
00:47 Sensor soldering
02:46 Sensor heat shrink
03:38 Protective tube
03:58 Potting compound
07:20 Final heat shrink
08:39 Cerbo Gx connector
11:00 End
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#victron #solar #temperaturesensor #electronics #diy #victronenergy #sensor #temperature #measuring - Věda a technologie
Great video. Question: How do I need to solder the sensor in order to make it work inside a ring eyelet (e.g. like on the original Victron sensor cable)? The original cable is used as power cable for the Victron Smart Shunt. Do I need to connect "plus" of sensor also to ring eyelet?
What is the adjustment pin for?
Also when potting stuff like that, seal one end of the tube, then put potting compound in and then insert the sensor, it will squish all around and its much less messy than trying to get it in around the wires
Would this work with smartshunt or bmv712 if run in parallel to the power wire? As obviously these get their power from the same wire as the sensor does.
Can now confirm this doesn't work for bmv712, any ideas what could be used or how this can be altered to work for bmv712?
Have you found a solution? I have the same problem
Do you know, whether I can use the LM335 for the Victron Smart Shunt aswell?
You might be able to use the sensor, however the cabling is different as the power for the shunt comes over the sensor cabling.
@@beandiving I managed to do it. Cost me only 4 Euros! I had to cable it differently, but it works like a Charm. You still were a big help. Thanks.
@@noobdown1997 What needs to be cabled different? I suppose plus of sensor needs to be connected to ring eyelet? Maybe you can confirm. Many thanks in advance.
@@ML-G The Smart Shunt has two inputs. One needs to be directly connected to the positive battery pole and the other needs to first connected to the sensor and then the positive battery lead. I hope this makes sense.
@@noobdown1997 Many thanks! This is was I expected it to be. However, I'm surprised in none of the reviews it's described like this. So thanks for your clarification
I have followed your video and it doesn't work, the sensor just keeps saying reverse polarity? Have you got this working with the Cerbo GX?
yes im getting reverse polarity as well. i would also like to know what settings were used as far as offset and Scale
Moi aussi polaritē inversē
Same here, if I switch it it says disconnected.
Any luck?
@@SouthFloridaFishingClub I gave up and did it from the start making my own.
czcams.com/video/RvLgENfeDKw/video.html
I have gone to your web page now to confirm which chip it is to use and on at least two separate occasions on the page you reference lm 355 and then lm 335, once its even in consecutive sentences. I also found a place on the victron forum where kevin windrem says to use a lm 355, and ive now gone and bought lm335 chips in line with your video and confirmed they dont work, im however reluctant to go buy more since the lm335's have already been a waste of money.
I bought 10 LM335, so far I have made 7 of them into sensors, each has worked first time of pluggining in. The one made in the video is still happily measuring the temperature of my garage. I've corrected the page (and double check which chips I used (I can't find a LM355 chip)).
One way to check the chips is to plug them directly into the cerbo without and cabling, this should work and is easy to switch which pins are the correct ones with the correct polarity.
Remember to change "LM355" on the video description and on the web post with "LM335"
Thanks, updated :)
The web page lists a few occasions of both numbers still, so really not sure which to actually use since the 335 didnt work for me.
Any luck?
Deja de hacer perder dinero y tiempo a la gente. He probado con 3 LM335 y no funciona con ninguno. Retira el vídeo y no enfades a la gente.
Igualmente yo, no funciona