If you are present at a power-failure, prepare the Emergency-Power-System (in D320 Mg-Lab next to the electronics/chemistry cabinet) and get gazoline (Super Benzin) ====== At (severe/long) power failure ====== * Set up the emergency power system (EPS) on the balcony room - (Parameters to turn it on: Choke: Turn off, Gas: Turn on) * Disconnect the marked power-cord (next to "Notaus") from the power-plug and put it into the EPS. Now, the turbo-pumps and IGP should be save * If the turbo-pumps fail: Close the big valve below the chamber-table for the big turbo pump and turn off the big turbo. ====== Things to do after power failure ====== There are two power-failure situations. One, where a fuse or the Notaus in the lab has triggered the power failure and then one, which happens for the whole IQ/UNI. The later one needs an additional treatment. ===== Whole IQ/UNI power failure ===== Most probably the ACs will fail after a power failure * Turn off every device (Oscilloscopes, commercial systems etc) and all the power supplys in the "Stromschrank" to avoid uneccesary heating of the lab * Check if the AC is working again (call 4440 to tell them or wait for the next day until it's fixed). Indication for a not working AC: The red light next to the WC/KRb Office is flashing (but musn't) * If ACs are working again, turn on every single device again. * ===== Checklist of devices ===== **Vacuum** * Check if all pumps are running and all pressures are ok * If pressures and pumps are ok (especially pre-vacuum and turbos) open the pneumatic valves (Next to the Lab-Door, there is a orange interlock. Press the reset button. You will hear the valves) * Open, if it has been closed, the big valve below the table at the big turbopump **S-MOT Laser** * Turn on the Toptica controler (green button) * Check the temperature controler of 285 * If a PID does not seem to work (e.g. Offset cant be set): Unplug it from power and replug it. **Triplet Laser** * Turn on the Thorlabs TECs for the Laserdiodes (they turn off on a power failure) * Turn down the current for every laser-diodes (even when the controlers are still off), turn the controlers off and set the short button to short * Reenable the powersupply for the LD (in the Stromschrank): Orange interlock (Press the reset button) * Turn on each laser controler. Then un-short the diodes. The ramp up the current * If a PID does not seem to work (e.g. Offset cant be set): Unplug it from power and replug it. **Wutz** * Turn on the Toptica controler (green button) - If it does turn off itself: Wait 15 minutes for the TECs to settle and try aganin. * Turn on the EOM-Synthesizer (located on bottom of Dipole-Rack) and set it to the correct frequency (written on the device - Recall, 9, Enter) * Monitor for Wutz/Clock-Laser: In the menu, go down to PIP (Picture-in-picture) and press right: It should enable the Wutz cam on that monitor again **Lattice Laser** * Check if the Meerstetter for the TiSa is working (green LEDs) * If a PID does not seem to work (e.g. Offset cant be set): Unplug it from power and replug it.