I'm a little late commenting, but in looking at the instructions for the dew heater ring on page 4, it says the dew heater rings are generally compatible with third party dew heater controllers, and further says, "Use the included extension cable to connect the dew heater's rings power jack to the controller's heater output port." So, I think it would be okay to use the non-thermistor connector to connect to a third-party dew heater controller.
@@gregerianne3880 The heater portion of the ring would be compatible with any dew heater control. It is just a resistance with the appropriate capacity in Watts. I don't know if the thermistor on the heater ring would be compatible with third party heater controls though. A common version of this kind of sensor is not much different than a reverse biased signal level diode. There are commercial versions of these sold just for temperature sensing. The one installed on the dew heater ring is on plastic film.
Cool .. I didn't know there was an integrated dew shield as well .. I won't be able to use it as mine is cut short so it doesn't smash into the dome roof. Thanks for doing this first .. it helps my confidence for doing mine next :)
Thanks Amy. Hope you demo the new fangled dew controller they make to go with that too :) BTW, I usually mark my corrector plates with a grease pencil right to the OTA edge to make sure and keep the original rotation in place, set at the factory for best collimation.
Connecting 12 volts from a heater control to the thermistor jack might blow the thermistor. It is not an alternative power input! There is nothing stopping you from connecting an unregulated 12 volts to the heater...other than it'll be at maximum heat all the time. 'Any' adjustable heater controller has a pulse width modulated output. It sends 12 volt pulses to the heater element when you turn the heat down. Full heat is at 100% 'Duty Cycle' or on all the time. Lesser levels are supplied when the ratio of the 'on' to 'off' time drops below 100%. An example would be 50% Duty Cycle when the power is a square wave with the on time equal to the off time period. I believe the frequency of these controls is fairly high...40,000 cycles per second is common in power supplies for electronics.
If you order the filter tray, the correct one is the Starizona for RASA 8 (specifically). Just installed these heaters in my RASA 8" and 8SE. Now that's how you gt clear skies :) .
Hi Amy. I have just bought the same scope which I'm finding awesome. I also fitted the dew dew heater ring but found it's not required because the heat generated from the camera is enough to keep dew off the lens. The heat is retained inside of the dew shield. I guess it depends on where you are and how cold it is. I'm from UK and don't think I need the dew heater ring. These scopes are mega critical on both focus and camera tilt. I bought a Starizona nose piece that allows a 2" filter to be fitted. It also has a small spacer that gives the correct back focus for ZWO cameras. Not cheap but more substantial than the Celestron part. It also helped with camera tilt. Also worth noting there is a lens behind the nosepice which can be removed if upgrading ? fitting filters Nice vid, look forward to the images. Clear skies Pete
Thank you for commenting! Here in Georgia I deal with heavy dew all the time. I think I will be challenging the dew heater. I can not wait to complete the build.
Yeah, I fear if we don't move some of the good Oak saplings I will be in the same boat again in 10 years. I am hoping we can get a professional to relocate 2 of them.
Excited you got this scope as this is my next purchase. Interested in what accessories you bought or intend to buy to use with the scope. I think the dew ring was a good purchase.
Wonderful. I am very excited about this project. The dew ring was a clever idea. Cleaner looking than the straps. I am waiting on the mailman now for another piece to the puzzle. I should be launching the next part of the video very soon. Clear Skies!
Hi Amy I've viewed a few of these videos about the dew ring & I'll probably buy one for my RASA 11 at some point but if they do a solid dew shield to fit I'm thinking it's going to be to long & hit the roof of my observatory sadly so will be sticking with a standard type I can cut down. Tonight I've just managed to get the focuscube to work with it as autofocus is all new to me but I had a nightmare getting there due to the retrofit focuser that Celestron make, sorry Celestron but I think you can do better. Love the video keep up the good work.
I think with the RASA 8 you should be fine as you just pull off the rubber knob on the existing focuser, my RASA was a version one which had the feather light focuser fitted so I had to change it over.
![[LIVE] : ONE ลุมพินี 90 วันนี้ | คู่เอก "ก้องไกล vs แอนตาร์"](http://i.ytimg.com/vi/VugIvOstzRI/mqdefault.jpg)
No....one of the connectors is for a thermistor to record the temperature please don't plug it into a dew controller!
Thank you for the correction.
I just got the Dew Ring but now I am not sure if it will work with my Pegasus PowerBox , do you know ??
I'm a little late commenting, but in looking at the instructions for the dew heater ring on page 4, it says the dew heater rings are generally compatible with third party dew heater controllers, and further says, "Use the included extension cable to connect the dew heater's rings power jack to the controller's heater output port." So, I think it would be okay to use the non-thermistor connector to connect to a third-party dew heater controller.
@@gregerianne3880 thx forvanswering
@@gregerianne3880 The heater portion of the ring would be compatible with any dew heater control. It is just a resistance with the appropriate capacity in Watts. I don't know if the thermistor on the heater ring would be compatible with third party heater controls though. A common version of this kind of sensor is not much different than a reverse biased signal level diode. There are commercial versions of these sold just for temperature sensing. The one installed on the dew heater ring is on plastic film.
Nice job Amy. I have just recently came across your videos and I find them very helpful. Thanks for your help.
Hi Amy I installed this in about 10 minutes thanks to this video. Great help. Thanks Astrobill
Glad it helped! Clear Skies!
Cool .. I didn't know there was an integrated dew shield as well .. I won't be able to use it as mine is cut short so it doesn't smash into the dome roof. Thanks for doing this first .. it helps my confidence for doing mine next :)
Glad I could help the master astronomer! lol you make me laugh.
Nice tutorial, will try on my 9.25"
You're going to love the RASA, Amy! Hope to see you at a meeting soon!
I will see you Saturday! I am looking forward to getting some tips from you.
I saw those advertized earlier. Seems like they fit well. Thanks for sharing.
I was impressed by the fit. I hope to run them soon.
Can't wait to see what you think about the RASA
I just ordered two of these, for my EdgeHD and RASA
Enjoy.
Thanks Amy. Hope you demo the new fangled dew controller they make to go with that too :)
BTW, I usually mark my corrector plates with a grease pencil right to the OTA edge to make sure and keep the original rotation in place, set at the factory for best collimation.
Thanks for the tip!
Yes. I would like to see the new Celestron Dew controller. They aren’t cheap but nothing is anymore
Connecting 12 volts from a heater control to the thermistor jack might blow the thermistor. It is not an alternative power input! There is nothing stopping you from connecting an unregulated 12 volts to the heater...other than it'll be at maximum heat all the time. 'Any' adjustable heater controller has a pulse width modulated output. It sends 12 volt pulses to the heater element when you turn the heat down. Full heat is at 100% 'Duty Cycle' or on all the time. Lesser levels are supplied when the ratio of the 'on' to 'off' time drops below 100%. An example would be 50% Duty Cycle when the power is a square wave with the on time equal to the off time period. I believe the frequency of these controls is fairly high...40,000 cycles per second is common in power supplies for electronics.
If you order the filter tray, the correct one is the Starizona for RASA 8 (specifically). Just installed these heaters in my RASA 8" and 8SE. Now that's how you gt clear skies :) .
I need to check what I have now. Mine came in last week and I know they were for the RASA. just not sure for the 8. Thanks for the heads up.
Hi Amy. I have just bought the same scope which I'm finding awesome. I also fitted the dew dew heater ring but found it's not required because the heat generated from the camera is enough to keep dew off the lens. The heat is retained inside of the dew shield. I guess it depends on where you are and how cold it is. I'm from UK and don't think I need the dew heater ring.
These scopes are mega critical on both focus and camera tilt. I bought a Starizona nose piece that allows a 2" filter to be fitted. It also has a small spacer that gives the correct back focus for ZWO cameras. Not cheap but more substantial than the Celestron part. It also helped with camera tilt.
Also worth noting there is a lens behind the nosepice which can be removed if upgrading ? fitting filters
Nice vid, look forward to the images.
Clear skies
Pete
Thank you for commenting! Here in Georgia I deal with heavy dew all the time. I think I will be challenging the dew heater. I can not wait to complete the build.
Amy not sure if you will get this question but do you know if the ring will work with the Pega
sus PowerBox , I am asking around
I feel your pain on the tree surgery. I actually planted several of my own obstructions on purpose 20 years ago....what was I thinking?
Yeah, I fear if we don't move some of the good Oak saplings I will be in the same boat again in 10 years. I am hoping we can get a professional to relocate 2 of them.
Excited you got this scope as this is my next purchase. Interested in what accessories you bought or intend to buy to use with the scope. I think the dew ring was a good purchase.
Wonderful. I am very excited about this project. The dew ring was a clever idea. Cleaner looking than the straps. I am waiting on the mailman now for another piece to the puzzle. I should be launching the next part of the video very soon. Clear Skies!
Hi Amy I've viewed a few of these videos about the dew ring & I'll probably buy one for my RASA 11 at some point but if they do a solid dew shield to fit I'm thinking it's going to be to long & hit the roof of my observatory sadly so will be sticking with a standard type I can cut down. Tonight I've just managed to get the focuscube to work with it as autofocus is all new to me but I had a nightmare getting there due to the retrofit focuser that Celestron make, sorry Celestron but I think you can do better.
Love the video keep up the good work.
I would love to know about the issues with the focuser. I need to install this also.
I think with the RASA 8 you should be fine as you just pull off the rubber knob on the existing focuser, my RASA was a version one which had the feather light focuser fitted so I had to change it over.
@@dumpydalekobservatory ok, Guess I will find out when I dig into it. I opened the box yesterday and decided it was a task for another day. :)
Have you already tested it? How does it work?
Not yet. I am buried in clouds. I have friends using it and love it so I am optimistic.
Great demo thanks. But what’s up with the trees at the end? please don’t cut them for our hobby…
These were old pine trees that were not healthy. We kept the oaks that were next to them. No worries.