[alpal]

I have a QHY9 mono camera.
I don't have any problems with it.
It works perfectly.

I have Google searched and been to the QHY site but can't find answers to some basic questions.

Questions:

(1) I have been wondering how to change the desiccant inside the camera?
I have a packet of desiccant strips.

(2) There are 2 screws on the back & I believe one or both needs to be unscrewed?

(3) Why are there 2 screws?

I know there is argon inside the camera to prevent dew forming.
(4) I don't know whether this argon is inside the whole camera or just in the sealed optical chamber?

I can find no picture on the internet showing how to change the desiccant.
The instruction manual has no pictures.
(5) are there any photos or videos available?

(6) Can opening one of the screws cause humid air to go inside & cause a problem?

(7) Should it be only performed on a dry day - low humidity?

(8) Should it really be done only if you have argon available &
performed inside an argon filled plastic bag?

(9) If I need argon where would I purchase it?



Hopefully someone will know the answers.

cheers
Allan