To adjust minutes, move the cursor to each digit and use the number keys to input number directly. To change the “behind” or “ahead of” UT, move the cursor to “behind” and using the ▲ or ▼ key to toggle between “behind” and “ahead of”. When the number is correct, press ENTER and go back to the previous screen. Fraction time zone can be entered.
Do not manually add or subtract an hour from displayed time to reflect the DST. Only select “Y” after DST begins.
For other parts of the world you can find your “time zone” information from iOptron website (http://www.ioptron.com/support.cfm?module=faq#).
Set Observation Site Coordinates
The third and fourth lines display the longitude and latitude coordinates, respectively. The longitude and latitude coordinates will be automatically updated when the GPS picks up satellite signals. “W/E” means western/eastern hemisphere; “N/S” means northern/southern hemisphere; “d” means degree; “m” means minute; and “s” means second.
If, for any reason, your GPS does not pick up the signal, you can manually enter the GPS coordinates. Press the ◄ or ► key to move the cursor and using the ▲ or ▼ key to toggle between “W” and “E”, “N” and “S”, and using the number key to change the numbers. It is always a good idea to do your home work to get the GPS coordinates before traveling to a new observation site.
The site coordinates information can be found from your smart phone, GPS receiver or internet. In case you only find the site information in decimal format you can convert them into d:m:s format by multiplying the decimal numbers by 60. For example, N47.53 can be changed to N47º31'48”: 47.53º = 47º +0.53º, 0.53º=0.53x60'=31.8', 0.8'=0.8x60"=48". Therefore, 47.53º=47º31'48" or 47d31m48s.
Select N/S Hemisphere
If the polar axis is aligned to the North Celestial Pole, then set the mount to Northern Hemisphere. If the polar axis is pointing to the South Celestial Pole, set the mount to Southern Hemisphere. Press the ◄ or
►key to move the cursor and using the ▲ or ▼ key to toggle between “Northern Hemisphere” and “Southern Hemisphere”.
As an example, select Northern Hemisphere if you are located in US and press ENTER to go back to the main menu.
The time and site information will be stored inside the HC memory chip. If you are not traveling to another observation site, they do not need to be changed.
The hand controller has a real time clock. Every time the mount is turned on, it should display the correct time after initial set up. If the time is off too much, please check the clock battery inside the hand controller and replace it if required. The battery is a 3V, CR1220 button battery.
STEP 9. Performing Polar Alignment
One of the CEM60’s unique features is that the polar scope can be accessed at anytime. It will not be blocked by DEC axle as in a German equatorial mount. This makes it possible to adjust the polar alignment during the tracking.
In order for an equatorial mount to track properly, it has to be accurately polar aligned.
18
