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version 1.1, 2003/04/04 15:59:47
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version 1.2, 2003/04/16 13:40:13
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| \category{hms} % Subject area of this document | \category{hms} % Subject area of this document |
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| %\maintainer{Name of person maintaining document} % Optional | %\maintainer{Name of person maintaining document} % Optional |
| \date{April 3, 2003} % Can use \today as the argument |
\date{April 16, 2003} % Can use \today as the argument |
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| \begin{document} | \begin{document} |
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| 15 ton concrete-and-steel door. | 15 ton concrete-and-steel door. |
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| \section{Door Operation} | \section{Door Operation} |
| The door may be moved either by pulling/pushing on it, or |
The door is moved |
| by energizing the drive motor attached to it. However you |
by energizing the drive motor attached to it. Once you have it open as wide as you |
| move the door, it is suggested that you use the rubber block provided to |
need, it is suggested that you use the rubber block provided to |
| chock the door in the open position once you have opened it. |
chock the door in the open position. |
| It does tend to drift closed if not restrained. |
It does tend to drift closed if not restrained. If you find yourself |
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inside the shield house with the door closed, there are pushbutton |
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controls inside which you can use to open it (see below). |
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| \subsection{Interlocks} | \subsection{Interlocks} |
| An interlock prevents access to the HMS detector hut unless the | An interlock prevents access to the HMS detector hut unless the |
| safety shutter inside the hut has been moved to its `down' position, | safety shutter inside the hut has been moved to its `down' position, |
| such that it covers the vacuum window. This is to prevent people from | such that it covers the vacuum window. This is to prevent people from |
| accidentally touching the large vacuum window. The door cannot be opened | accidentally touching the large vacuum window. The door cannot be opened |
| unless the shutter is already inserted. |
unless the shutter is already inserted. To prevent the door from |
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drifting open on its own, a magnetic lock holds it in the closed |
| \subsection{Manual Operation} |
position. This lock is de-energized when the {\tt OPEN} control |
| Once the vacuum shutter is fully inserted, you may open (close) the door |
button is pressed. |
| by pulling (pushing) on the handle. Keep |
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| in mind that it has considerable inertia. This |
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| means that you must pull backwards on the door in order to slow it |
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| down near the end of its desired motion. It also means that you |
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| must pull steadily on the door to make it begin to |
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| move at all. It {\it will} respond, albeit slowly. {\bf Do not |
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| accelerate the door to a high speed!} |
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| \subsection{Motorized Operation} | \subsection{Motorized Operation} |
| The door may also be opened by activating the motor attached to |
The door is opened or closed by activating the motor attached to |
| its hinges. The control panel for the door is mounted on the | its hinges. The control panel for the door is mounted on the |
| post behind and to your right as you stand in front of the door. Press and |
post behind and to your right as you stand in front of the door. A |
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duplicate set of controls is inside the shield house, to the |
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right of the door. Press and |
| hold the button marked {\tt OPEN} and the door will be slowly | hold the button marked {\tt OPEN} and the door will be slowly |
| opened. Press {\tt CLOSE} to move the door towards the closed | opened. Press {\tt CLOSE} to move the door towards the closed |
| position. Remember that the door will continue to move after | position. Remember that the door will continue to move after |
| you release the button because of its inertia. |
you release the button because of its inertia. It takes about |
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two minutes to fully open the door or to close it from the |
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fully opened position. When closing the door, make certain |
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to keep {\tt CLOSE} pressed until the magnetic lock near |
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the top of the door engages. |
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| \end{document} | \end{document} |
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| % Revision history: | % Revision history: |
| % $Log$ | % $Log$ |
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% Revision 1.2 2003/04/16 13:40:13 saw |
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% (hcf) Add some detail, remove manual operation section |
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% |
| % Revision 1.1 2003/04/04 15:59:47 saw | % Revision 1.1 2003/04/04 15:59:47 saw |
| % Initial Checkin | % Initial Checkin |
| % |
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