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playground:power
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playground:power [2018/01/12 15:03] jacobs |
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| 4) If the blink was more than a few milliseconds the accelerator and all electrostatic devices will have shut down and all electrically operated gate valves (except for the sources) will have closed. If the accelerator was running, set all of its controls to the initial condition (off) settings. | 4) If the blink was more than a few milliseconds the accelerator and all electrostatic devices will have shut down and all electrically operated gate valves (except for the sources) will have closed. If the accelerator was running, set all of its controls to the initial condition (off) settings. | ||
| - | 5) Check the “main loop temp” on the alarm panel. If it is greater than ~58 the chiller has failed and you will need staff to restart it. Turn down the magnets. | + | 5) Check the “main loop temp” on the alarm panel. If it is greater than ~58 the chiller has failed and you will need staff to restart it. Check the status of the magnets. Each magnet control module should be showing a red light for standby or off condition. Magnet current meters need to be showing zero amps. Turn down the magnets if they are not at zero. |
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| - | 6) | + | |
| 6) Return to the vault and check that the 4 cryopumps ( LE line, LE pumping station, HE pumping station, analyzer line) are still cold. All pumps have reliable temperature gauges. Condensation or frost on the cryopump is a sign of failure. If they appear to still be good open the "pump" gate valve at each pumping station. If they have failed, shut down the compressor to begin regeneration, do not open any gate valves. Shut down by the yellow breaker on the rear of the compressor. | 6) Return to the vault and check that the 4 cryopumps ( LE line, LE pumping station, HE pumping station, analyzer line) are still cold. All pumps have reliable temperature gauges. Condensation or frost on the cryopump is a sign of failure. If they appear to still be good open the "pump" gate valve at each pumping station. If they have failed, shut down the compressor to begin regeneration, do not open any gate valves. Shut down by the yellow breaker on the rear of the compressor. | ||
playground/power.txt · Last modified: 2020/07/12 13:43 by carter
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