Equinox Systems GEMINI Manuel d'utilisateur télécharger pdf (Page 16)

Gemini Users Manual 11

2.2.4 Power Requirements

The Gemini System requires 12–18 Volts DC, 3 Amps to operate. You will need to have

a battery or regulated DC power supply. Your choice of power supply is very important!

Many DC power units are not regulated, provide too little current, and too little or too

much voltage. This can cause problems with the Gemini. If you plan to run other

equipment from the power supply, make sure it has enough additional capacity. Choose

your power supply carefully to meet the requirements mentioned above, and avoid

potential problems such as long power cables. The Losmandy DC power supply

(available separately) meets all the above requirements.

2.3 Hand Controller Overview

The Gemini System comes with the Deluxe Hand Controller. All functions of the

Gemini System are accessible using just the four diamond shaped buttons, and the

MENU button. The built-in LED display provides information about all of the Gemini

System's features and menus. This simple arrangement gives you complete control with a

minimum of effort. Because the Gemini has such a large number of features and options,

navigating through the menus can be somewhat overwhelming at first, but after a little

practice, you'll find this arrangement quite intuitive and very easy to operate. All of the

settings in the Setup menu are stored in non-volatile memory, so you won't have to set

them each time. There are also shortcut keystrokes that will give you instant access to

some features.

2.3.1 Controls

The Hand Controller has two main functions. It is used to move the telescope in RA

and Dec., and to access the Menu. Pressing the MENU button on the Hand Controller

toggles between Telescope Control Mode and Menu Mode. After completing the

startup sequence, the Gemini System goes into Menu Mode, offering the main menu

item “Align Telescope”. After 15 seconds without any user input it will fall back into

Telescope Control Mode.

Telescope Control Mode: The four diamond shaped buttons move

the telescope in RA and Dec. The upper diamond button is DEC+,

the lower one is DEC–, the right one is RA+ and the left one is RA–.

At power-up, the RA and DEC buttons default to these functions.

The square RA REV and DEC REV buttons on the bottom can be

used to reverse (toggle between) the + and – functions on the

respective RA and DEC (diamond) buttons. The functions of the RA

and DEC buttons are not marked for this reason.

Unless reversed using RA REV or DEC REV, RA+ moves the

mount west in RA while RA- moves the mount east.

DEC+ moves the declination axis of the mount counterclockwise

(when viewed from the top), while DEC- moves it clockwise. When

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