Meade instruction manual 15 LX200GPS Specifications, Maksutov Fan

SPECIFICATIONS

7" f/15 LX200GPS Specifications

Optical design	Maksutov-Cassegrain
Clear aperture	178mm (7")
Focal length	2670mm
Focal ratio (photographic speed)	f/15
Resolving power	0.64 arc sec
Coatings	Meade EMC Super Multi-Coatings
Mounting	Cast-aluminum, double-tine forks
Gears	5.75"-dia worm gears, both axes
Alignment	Altazimuth or equatorial w/optional wedge
Pointing Precision	2 arc-minutes in GO TO mode
Power	8 C-cell (user-supplied) batteries
	or optional 12v power supply
Slew Speeds	1x sidereal to 8°/sec in 9 increments
Tripod	Variable-height field tripod
Accessories	8 x 50mm viewfinder
	1.25" diagonal prism
	Super Plössl 26mm eyepiece
	4-speed zero image-shift microfocuser
	16-channel GPS receiver
	True-level electronic sensor
Net telescope weight	53 lbs.
Net tripod weight	20 lbs.

Maksutov Fan

The Maksutov optics are equipped with a fan which will assist in the stabilization of the temperature of these optics. The fan operates when a special power cord (sup- plied in the accessory box) is plugged into the12v DC OUT (13E, Fig. 1) and the RS232 port (13G, Fig. 1) of the computer control panel with the power switch in the “ON” position. The amount of time required to stabilize the temperature will be dependent upon ambient conditions including the observation site and preexisting condition of the telescope. The fan should be activated at the beginning of the obser- vation session to accelerate the temperature stabilization. As soon as the optics have reached an equilibrium with the environment the fan should be turned off by unplug- ging the fan power cord. Fan operation time should range between 5 and 25 minutes. While it is permissible to run the fan continuously it is not recommended because the very slight vibration of the fan may cause noticeable movement of the objects observed in the sensitive optics.

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