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| en:ost:telescope:handling_new [2021/10/27 19:49] – [Shutdown] rhainich | en:ost:telescope:handling_new [2024/01/26 11:19] – [Changing the instruments] rhainich |
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| As shown in the figure above, four devices can be switched using the control menu. In position 1 is the OMS itself, which of course may never be switched off and is therefore always highlighted in green. On position 2 is the telescope or the mount. The 3rd position is used to switch the cameras, the all-sky camera and all other electrical attachments to the telescope. The 4th position is currently not occupied by a device. | As shown in the figure above, four devices can be switched using the control menu. In position 1 is the OMS itself, which of course may never be switched off and is therefore always highlighted in green. On position 2 is the telescope or the mount. The 3rd position is used to switch the cameras, the all-sky camera and all other electrical attachments to the telescope. The 4th position is currently not occupied by a device. |
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| If you click on **Cameras &...**, for example, the buttons for switching on and off become visible. By clicking on **On**, the cameras and all other telescope attachments can be switched on. The corresponding entry is then colored green. After the observation and after you have shut down the cameras properly, you have to switch off the power supply of the cameras and all attachments again by clicking **Off**. For telescopes/mount the shutdown procedure is slightly different. More about this below. | If you click on **Cameras &...** the buttons for switching on and off become visible. By clicking on **On**, the cameras and all other telescope attachments can be switched on. The corresponding entry is then colored green. After the observation and after you have shut down the cameras properly, you have to switch off the power supply of the cameras and all attachments again by clicking **Off**. |
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| | For telescopes/mount the procedure is slightly different. Click on the **Batch** button and then make sure that the settings are as follows: **switch** ''on''**, wait** ''3'' **sec(s), switch** ''off''. Then click on **Ok**. The status indicator will briefly go to green and then change back to red. This is perfectly normal and expected. More about this below in the section [[en:ost:telescope:handling_new#After the observations|After the observations]]. After about 20 seconds, the mount should be fully booted and ready for operation. |
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| === Get an overview === | === Get an overview === |
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| === Changing the instruments === | === Changing the instruments === |
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| When changing the instruments, two basic things have to be considered: On the one hand, the focuser has naturally only a limited adjustment range, so for different instruments also different adapters (M68 thread) are needed. In the article on [[en:ost:fokus_new | focusing]], we go into more detail on how to calculate the ideal adapter length and also list the adapter lengths used for the most commonly used instruments. | |
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| <WRAP group> | <WRAP group> |
| <WRAP half column> | <WRAP half column> |
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| Furthermore, the interchangeable balance weights at the front of the telescope should be adapted to the instrument in question. As shown in the image to the right, balance weights can be attached at two points. The configuration shown is for the STF8300M, while for the BACHES with the ST-8 another balance weight should be added. This balance weight should ideally be attached to the side away from the mount (the right side in the picture). For our QHY600M, one balance weight must be added on each side compared to the configuration in the picture. For observations with the eyepieces, all balance weights should be removed from the front and ideally some should be reattached at the back. | There are two basic things to keep in mind when changing instruments: First, the focuser has a limited range of adjustment, which means that different adapters (M68 thread) are needed for different instruments. In the [[en:ost:fokus_new | focusing]] article, we explain in more detail how to calculate the ideal adapter length and list the adapter lengths normally used for the most common instruments. |
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| Additional balance weights are located in the large metal cabinet. The balance weights can simply be screwed onto the existing ones. When handling the balance weights, the telescope should be placed in a position where it is facing the ground as much as possible to prevent the balance weights from falling into the tube. | In addition, the interchangeable balancing counterweights on the tube should be matched to the instrument (see table below). Several small 230g counterweights and a large 1kg counterweight are available. The latter is mounted on a rod on which it can be moved as required. The rod holder remains attached to the tube at all times. |
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| | The counterweights are located in the large metal cabinet. The small counterweights are screwed onto a counterweight holder, which usually has to be mounted first. When handling the counterweights at the front of the tube, the telescope should be positioned as close to the ground as possible to prevent the counterweights from falling into the tube when they are screwed on or off. |
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| </WRAP> | </WRAP> |
| <WRAP half column> | <WRAP half column> |
| [{{ ost:cdk20:cdk20_small_counterweights.jpg | CDK20 with counterweights}}] | [{{ ost:cdk20:balacing_weight_eyepiece.jpg | CDK20 with counterweights}}] |
| </WRAP> | </WRAP> |
| </WRAP> | </WRAP> |
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| |< 100% 20% 45% 15% >| | |< 100% 20% 45% 15% >| |
| ^ Balance weight mount | | {{:ost:cdk20:balance_weights_mount.jpg|}} | | ^ Counterweight holder | | {{ost:cdk20:balance_weights_mount.jpg|}} | |
| ^ STF8300M | Two balance weights on the inside (side facing the mount) and one balance weight on the outside (side facing away from the mount) | {{ost:cdk20:balance_weights_sft8300.jpg|}} | | ^ Mounting block for counterweight bar | | {{ost:cdk20:mounting_block_counterweight_bar_highlighted.jpg|}} | |
| ^ BACHES + ST-8 | Two balance weights on the inside and the outside | {{ost:cdk20:balance_weights_baches.jpg|}} | | ^ Always mounted | **A** small balancing counterweight **in front** of the tube | {{ost:cdk20:balacing_weight_front.jpg|}} | |
| ^ QHY600M | Three balance weights on the inside and two balance weights on the outside | {{ost:cdk20:balance_weights_qhy600m.jpg|}} | | ^ Eyepiece | **1kg** balancing counterweight (square box) and **four** small balancing counterweights (ellipse) **at the rear** of the tube | {{ost:cdk20:balacing_weight_eyepiece.jpg|}} | |
| | ^ DADOS & QHY 268M | **A** small balancing counterweight **at the back** of the tube | {{ost:cdk20:balacing_weight_dados.jpg|}} | |
| | ^ BACHES & QHY 268M | **No** balance weight required | {{ost:cdk20:balance_weights_qhy600m.jpg|}} | |
| | ^ QHY600M | **No** balance weight required | {{ost:cdk20:qhy600_mounted_trimmed.jpg|}} | |
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| | /* |
| | ^ STF8300M | Currently not known | {{ost:cdk20:balance_weights_sft8300.jpg|}} | |
| | */ |
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| ==== After the observations ==== | ==== After the observations ==== |