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shelyak Lighting equipment User Manual

Alpy calibration
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  • Page 3 Alpy calibration module User Guide Olivier Thizy (olivier.thizy@shelyak.com) François Cochard (francois.cochard@shelyak.com) February 2014 Ref. DC0018 - rev B...

  • Page 4: Table Of Contents

    Table of Contents Introduction 1 Discover your Alpy calibration module 1.1 Out of the box ..........1.2 Alpy calibration specifications .

  • Page 5: Introduction

    Alpy 600 and how to observe with it. Astronomical spectroscopy is a never ending story. We’ve thought about a lot of applications for the Alpy instrument (you can find some ideas on the Shelyak Instruments website ). However, we know that you’ll invent new ones.

  • Page 6: Discover Your Alpy Calibration Module

    Discover your Alpy calibration module 1.1 Out of the box When receiving your Alpy calibration module, you’ll find in the box the following parts: – The Alpy calibration module itself, – Four screws (M4x20mm) – An Allen wrench for attaching it to the Alpy guid- ing module.
  • Page 7 CHAPTER 1. DISCOVER YOUR ALPY CALIBRATION MODULE Feature Value Unit Comment Dimensions 100x95x30 see fig. 1.1 below Weight Power supply voltage Positive in the central pin. Power supply current Power supply connector standard 5.5x2.5mm Mechanical interface 4 screws + T-mount thread (M42x0.75mm) Table 1.1: Alpy calibration specifications Figure 1.1: Alpy calibration dimensions...
  • Page 8 Alpy calibration - User guide Figure 1.2: Main calibration lines...

  • Page 9: Power Supply

    CHAPTER 1. DISCOVER YOUR ALPY CALIBRATION MODULE 1.5 Mechanical interfaces The Alpy calibration module is mounted on the Alpy guiding module with four M4 screws (see drawing 1.1). On both sides of the module, there is a standard T- mount thread (M42 x 0.75mm). When the screen is in place, you can switch on ei- ther the calibration light, the white halogen light (for flat field) or neither of them.

  • Page 10: Using The Calibration Module

    Using the calibration module 2.1 Testing the module There are two switches on the Alpy calibration mod- ule. One is for calibration and the other for the flat field (halogen lamp). A LED indicates that the lamp is on. It will be useful when the Alpy calibration moduleis on the telescope: no light other than LED will be visible from outside.

  • Page 11: Remote Control

    CHAPTER 2. USING THE CALIBRATION MODULE The calibration lamp is close to the screen, to When controlling the Alpy calibration mod- have maximum efficiency. The halogen lamp ule remotely, take care that the manual is on the side, to limit its intensity and prevent a switches are OFF.

  • Page 12: During Observations

    Alpy calibration - User guide Attach the calibration module to the guiding mod- The instrument is now ready for installation on the ule, with the four screws (included in the package). telescope (refer to the Alpy 600 and Alpy guiding user guides): Position the calibration module in such a way 2.3 During observations...
  • Page 13 CHAPTER 2. USING THE CALIBRATION MODULE Switch on the calibration lamp when you need to take – One LED is on: the matching lamp is on, and the calibration images. It can be done manually or re- screen is across the telescope beam. motely (see section 2.1.1).

  • Page 14: Maintenance

    Maintenance As with any lamps, the ones in Alpy Calibration have a limited lifetime. If you need to replace these lamps, proceed as below. We suggest removing the Alpy spectroscope from the telescope to do it, but is is not strictly required (if you have enough room around the calibration module to use a screwdriver).

  • Page 15: Replacing The Flat Lamp

    CHAPTER 3. MAINTENANCE If you put the lamp in the opposite direction, it will apparently work, but the lifetime will be significantly shorter (it will become darker and darker over the time). Put back the cover, taking care of the servo cable: Unplug the servo cable: Tighten the three screws - that’s it.
  • Page 16 Alpy calibration - User guide Remove the halogen lamp (rotate a quarter turn): Replace the lamp. Put back the electronics in the body. Tighten the four screws around the calibration module. Plug in the servo connector (take care of the orientation - refer to the circuit markings).

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