Artemis 4021 mono cooling issues

[patrickduis]

Hi, I use for a few years an Artemis 4021 mono (serial nr. 513). It has single stage cooling in combination with Nebulosity 3.1.8.
Normally in winter I easily reach -15C with it, but in spring/summer -10C is even difficult. What I also often see is that the CCD temp/cooling power indication in Nebulosity3 never shows higher than 61%, why can't it cool up to for example 80% cooling power? I understand that 100% is too much since that saturates the peltier and causes heat after a while.

Is there a possibility to convert my camera into two stage cooling? I am an experienced electronics engineer so I can do it myself if I have the right parts.

Many thanks,
Patrick (myrtha observatory Holland)

[dcornelis]

Using the same camera, and yes, would be very interested in that feature too!

D.

[regl]

Same to me.

The camera can cool roughly 15 degrees below ambient, not 33 as advertised.

Can I/we do something to freeze a little bit more? What about the Eprom setting, which has some parameters for the cooler?

please help, the camera is great (low noise!), I dont want to replace it!



thanks, Alois

[patrickduis]

Nice that you bring this up. My Artemis 4021 mono had some problems with the cooling and therefore it is at Atik now for repair. In the same time I have it converted to a full two-stage cooling Atik 4000 so I can use it for many years to come. I also don't want to replace it, for what I do with it the sensor is big enough and the sensitivity is also ok.
Contact the Atik service department if you are also interested in this upgrade.

[regl]

How much did you pay for the upgrade?
thanks, Alois

[patrickduis]

I don't know that yet, I'll hear it when the work is finished.

[regl]

Any new information concerning the price? And are you happy with the upgrade (means: is it really cool now...)?
lg and thanks,
Alois

[patrickduis]

Got the camera back a week or so and was able to test it. Atik did a great job reagerding the upgrade, the camera came back like new in a peli case with many extra features like the relaceable desiccant plug.
Please contact Atik for the price since it strongly depends on your model.