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Meade ETX-90EC instruction manual Instruction Manual, Meade Instruments Corporation

Models: ETX-90EC

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Instruction Manual

Instruction Manual

ETX-90EC Astro Telescope ETX-125EC Astro Telescope

Meade Instruments Corporation

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Meade ETX-90EC instruction manual Instruction Manual, Meade Instruments Corporation

Contents

Meade Instruments Corporation Instruction ManualETX-90EC Astro Telescope ETX-125EC Astro Telescope 1. Eyepiece 2. Viewfinder Chapter 5 Optional Accessories Chapter 6 Maintenance and Servicing CONTENTSz3Chapter 2 Telescope Fundamentals Appendix A Tracking Motor SpeedSlew Speed GUIDEAssembly Instructions Chapter 1 GETTING STARTEDParts List OPTIONAL ACCESSORIES, pageTELESCOPE FEATURES Quick Tips GETTING STARTEDTelescope Controls Computer Control PanelIndicator Light Key GETTING STARTEDzACCESSORIES , page Light NoETX-90EC 8 x 21mm Erect-Image Viewfinder GETTING STARTEDETX-90EC ETX-125ECTelescope Focal Length Power = Eyepiece Focal Length Chapter 2TELESCOPE FUNDAMENTALS1900mm Power = = 26mm TELESCOPE FUNDAMENTALS 1. Complete the Polar Alignment Procedure on page TELESCOPE FUNDAMENTALSzTHE ELECTRONIC CONTROLLER Modes of OperationCelestial Coordinates Polar Alignment ProcedureLocating the Celestial Pole Standard Tripod Leg ETX-90EC Latitude Balance Weight is recommended ifHigh-Latitude Tripod Leg ETX-90EC Standard Tripod Leg ETX-125ECOBJECTS IN SPACE Chapterz4 OBSERVINGThe Moon PlanetsPHOTOGRAPHY WITH BOTH ETX MODELS OBSERVINGzA few tips on photography with both ETX models Power Chapter 5 OPTIONAL ACCESSORIESAstro Software/Cable Connector Kit ETX-90EClocation and a helicoid mechanism allows precise focusing OPTIONAL ACCESSORIES#1244 and #1247 Electric Focusers OPTIONALz ACCESSORIESGeneral Maintenance Chapter 6 MAINTENANCEz AND SERVICINGTroubleshooting Storage and TransportTelescope pauses when changing slew direction MAINTENANCE AND SERVICINGCHAPTER Unable to see an image through the eyepiece Object appears in the viewfinder but not in the eyepieceSpecifications ETX-90EC Astro Telescope TELESCOPE SPECIFICATIONSSpecifications ETX-125EC Astro Telescope Indicator Light Key Appendix ATRACKING MOTOR SPEEDNorthern Hemisphere Polar Light NoAppendix B HELPFUL CHARTS Setting Circles 24Appendix C PRECISE POLARz ALIGNMENT SETTING CIRCLESAPPENDIX Precise Polar Alignment Appendix D ROADMAPzTO THE STARS The distance from the Earth to the Moon Appendix E YOU AND THE UNIVERSEThe distances between the planets The distance between starsMEADE LIMITED WARRANTY 6001 OAK CANYON, IRVINE, CALIFORNIA 92618-5200 U.S.A Meade Instruments Corporation