QHY10 Important for Safty(Please read carefully before oprating your camera)
1.The larger surface area of the CCD chip and cooling system are more fragile than small or medium sized CCD.Take extra care when transporting and using the device.
2. Avoid blocking cooling vents .
3. Connection Sequence:
Connect USB cable from camera to PC
Connect 9-pin cable from camera to DC201
Connect 12V power to DC201
Disconnect 12V input power from DC201
Disconnect 9-pin cable from camera
Disconnect USB cable from PC
5.Ensure that the power converter grounded in good condition.
DC201 Input Voltage Range and Power.
The DC201 requires a regulated 12V input.The normal input range is 11V-13V.If you exceed 13V when you are using an external battery,the higher voltage will reduce the life of TEC and fan.Please limit the maximum power of your cooling settings if you have to use your camera in this case.Please check "Favorite->TEC Protect" in EZCAP software.If you are using the ASCOM driver, this has been set automatically.
QHY10 uses double refrigerating refrigerator, the temperature can drop to below the environment temperature about 40-45 degrees Celsius.
Service temperature of QHY8L is from -20¡ãC to 30¡ãC,Relative humidity amount is from 0% to 90%.
6.Chip moisture problems.
In certain relative humidity,when the temperature is lower than the dew point, the surface will appear dew or frost, this is a low of nature.Ice or dew may form on the surface of CCD chip or optic window,they will impact your images.If dew or ice forms on the surface of CCD chip ,water can flow onto the electric board,which leads to short circuit or data corruption. You should avoid to appear this problem.
Chip surface moisture
The internal space of CCD camera is relatively airright. If dew forms on the surface of CCD chip, this indicates that there is higher relative humidity in the CCD chamber.You must dry the chamber using the following method:
Open QHY10 in dry place. And put QHY10 in a dry and airtight environment for24 hours to make it completely dry.
Install QHY10 in the dry environment and seal it .
Infrared cut-off glass window moisture
If the cooling temperature is too low in a high humidity environment ,the infrared cut-off glass window may collect dew.This is due to the temperature of the window is too low.Please use the following method if you run into this problem.
Install M42 to M42 heater which produced by QHYCCD.The heater can raise the glass window's temperature to avoid dew forming.
Reduce the cooling power,The best temperature range for QHY10 is from -15¡ãC to -20¡ãC.Please adjust the cooling temperature according to the ambient temperature.
Don't put the glass window upside down ,as the cold air may focus on the glass window
Note:You should shut off all power after you finish using your camera.If the camera is still on ,any ice crystals aroud CCD chip will melt which can corrupt or short-circuit the PCB board.
7.Notes about Long term use camera and Remote Observatory
If you have to keep the camera working for a long time or the camera is working in a remote observatory, please follow the following procedures,and we recommend that you consult your area dealer for more details.
Before using the camera,always check that the CCD chamber is sealed and dry.If there is a lot ice crystals around the chip-this indicates a high relative humidity in the CCD chamber.You must dry the CCD chamber.
Check the air tightness of CCD sealed chamber. You can check this by increasing the internal pressure of the CCD sealed chamber with a hand pump(do not exceed 1.01MP).Then watch if the pressure drops.If the pressure drops quickly,this indicates a lack of air tightness.You need to check if the front cover is screwed on well.
Put effective desiccant in the dry tube and connect continually with CCD for a long term drying.
Don¡¯t supply power to the CCD for several days or even weeks if possible.Use a power controller to control 12V input or AC input.
8.QHY10 CCD Senser Readout Mode:
QHY10 is using two frame readout CCD senser.We recommend not to use high-speed download when you take a photo in a formal pattern. The function is limited to preview .
9.About controlling for BLOOMING
QHY10 CCD chip has -100dB aniti-overflow foundation.There is possible to overflow when you are shooting very bright target.For the overflow problem of SONY CCD chip,you can install mechanical shutter .If you need mechanical shutter,please consult QHYCCD or your area dealer.
10.Protection of Cooler
The double cooler of QHY10 can reach to 40-45 Centi degrees difference in environmental temperature.So it need to avoid thermal shock. Thermal shock means internal stress of cooler happen to change due to expansion or contraction caused by the rapid changes in temperature of cooler.Strong thermal shock will shorten the using age of cooler or even irreparable defect of cooler.
The method of avoiding thermal shock:To avoid reaching maximum power of cooler when booting machine .Ensure to increase gradully power of cooler. When stopping machine work, please reduce the power gradually if the cooler power is big.And turn off the power of the camera.
11.Clean the surface of CCD
If the dust are too big to impact your images,you can open the front of the camera to clean th surface of CCD. We suggest you using flat field calibration method to process the imags for small dusts without having o open the front cover.
Srew the front cover fo CCD counterclockwise.
Clean the surface of CCD with a manual air pump.You can use lens paper or a commercial available SLR camera cleaning kit to clean the dirt which can not be cleaned up by the manual air pump.
The correct using method of lens paper:
Wash your hands with soap.
Take a pice of lens paper and fold it once or twice(Do not fold too many times as the lens paper will get very sharp and the edges may scratch the CCD glass surface).
Blow at CCD in a breath and use lens paper to clean the CCD sueface.Make sure to maintain an appropriate pressure for CCD with your hand.
Finish cleaning and reinstall the front cover of CCD,If there is higher humidity in your environment ,It is necessary to dry the inside of the CCD sealed chamber.