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ChiefSmeg
(@chiefsmeg)
Trusted Member
Ksd9700

Anyone used a ksd9700 temperature sensor with a fan on here for their enclosure? Just looking at buying a few in a temperature range and note that they are supposedly for contact only, not air - any success stories?

Best Answer by Eef:

PS de ksd9700 reacts also to airtemp (bit slower). 

Posted : 07/04/2024 11:11 am
ChiefSmeg
(@chiefsmeg)
Trusted Member
Topic starter answered:
RE: Ksd9700

Ah ok - nobody then. I’ll let you all know how I get on!

Posted : 13/04/2024 6:13 pm
Eef
 Eef
(@eef)
Estimable Member
RE:

hej, you are fast. 
Maybe good to know. I just build a heater using one like this:
12Volt, 100 Watt. Using a Meanwell PSU,
(Before I had a 220V heater/blower, what stopped blowing (fan broke) and heated up till melting point. I was lucky the enclosure was heated up to about 30 degrees, so the thermostat shut it off. Otherwise I would maybe have not written this message). 

Because I do not want a fire. I took some steps: 
- Added a W1209 thermostatic switch, (what only can do about 10 Amp)
- So added a relay 30 Amp
- The Heater can be divided in two parts. So I added the Ksd9700 (65 degrees) to one side. (it can only have 6 AMPs!). If precisely fits inside the enclosure of the heater. Attached with super glue. So as soon it is 65 degrees it turns the heater into a 50 Watt heater. 

-  I also added a thermic switch. Made a hole in the side of the heater and pushed it in the hole from the inside. Fits.
It can have 30 AMPS and switches of at 75 Degrees. 
Printed a mount for all the stuff and it is now heating the enclosure, upto 23 degrees (so I do not get mintemp errors on the printer). When the printer runs it becomes easily above 30 degrees
The heater takes about 10-20 minutes to get it to about23 degrees Celsius. 

And I sleep well because of the triple safety.

Posted : 13/04/2024 7:28 pm
ChiefSmeg liked
Eef
 Eef
(@eef)
Estimable Member
RE: Ksd9700

PS de ksd9700 reacts also to airtemp (bit slower). 

Posted : 13/04/2024 7:34 pm
ChiefSmeg liked
ChiefSmeg
(@chiefsmeg)
Trusted Member
Topic starter answered:
RE:

Thanks @eef much appreciated. Like your heater idea, but to be honest I simply can’t consider something like that. I’m going to hook up a 5015 fan to a lower temp ksd9700 and then a 120mm high flow one to to another sensor set 5 degrees above. 

well, that is the plan anyway, got to get print the bits first and then fit my quick release PSU and screen kits before modding the enclosure with the fans 😁

Posted : 13/04/2024 7:57 pm
Eef
 Eef
(@eef)
Estimable Member
RE:

NB: For ventilation: I open the door 🙂 

PS Why not 2 x W1209. They can switch about 6-10 Amp and set precisely for cooling/heating as you want. 
On printables are nice enclosures. Put them on top of the enclosure.

Posted : 13/04/2024 8:06 pm
ChiefSmeg
(@chiefsmeg)
Trusted Member
Topic starter answered:
RE: Ksd9700

If my plan does not work then this is going to be the backup - thanks for the info  unfortunately I cannot open the door - the whole setup is in my garage which can get a bit draughty (hence the enclosure, but I’ll need a fan).

definitely going to look at those control boards though - no idea regarding current draw though because I’m a mechanical engineer not electrical (or klanky not sparky)

Posted by: @eef

NB: For ventilation: I open the door 🙂 

PS Why not 2 x W1209. They can switch about 6-10 Amp and set precisely for cooling/heating as you want. 
On printables are nice enclosures. Put them on top of the enclosure.

 

Posted : 13/04/2024 8:58 pm
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