Introduction
How to power off/ power on the K3 of the TEM - Thermo Fisher Titan Krios G3i located at the Center for Microscopy and Image Analysis (ZMB), Irchel Campus, room Y24-F-11, UZH, Zurich, Switzerland.
The K3 power off/ power on cycle needs to be performed when either the camera or the energy filter is not inserting (or retracting), or not responding.
If the energy Filter does not have any issue, do not restart the GIB (skip step 4 and 5).
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The computer is completely frozen, the screen is blue and you don't see any program/reaction.
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The Camera is refusing to insert, or to retract.
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Digital micrograph (DM) crashed already few times, and restarting only DM does not help.
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The Camera health is grey, or red, because there is no data connection.
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To set the temperature at 20 ° C select "Camera" -> "Temperature..." in the DM Menu.
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Set 20 ° C as target temperature.
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The software will ask you if you want the camera to be at 20 ° C also when DM is launched again -> say "Yes".
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Close DM
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The software will ask you if you want to save the GIB alignment. Do so only if you tuned the energy filter lately.
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Shut down the Computer
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Locate the rack for the K3 computer and power supply at the back of the room.
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Open the rack with the key (that is always inserted) and switch off the K3 Power supply pushing few seconds the big blue G until the green lights are off.
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Wait 30 sec before the next step.
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Locate the big rack at the back of the room where the GIB (Gatan Instrumentation Bin) is located.
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Open it with the key that is on top of the rack.
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Switch off the GIB power supply.
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Wait 30 sec before the next step.
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Switch GIB power supply ON.
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Wait 30 sec before the next step.
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Switch on the K3 power supply pushing the blue G for few seconds.
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Now the led lights will switch on with the following order: CTR → camera power → camera → tec.
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Switch on the K3 computer by pushing the little red button.
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The K3 computer is really noisy, close the K3 rack again.
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Go back to the computer, and log in using the password that you will find written in the paper below the screen.
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Launch DM.
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When DM is started, an error message about the compatibility of gatanRemoteTEM.exe will appear. Please, ignore the message.
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In DM locate and open the "Camera Monitor" panel.
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Check the camera status. In the image, the camera is healthy (green color). If the camera would be unhealthy, it will display a red color.
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If the camera is healthy, proceed to change the temperature.
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In Help -> User Mode -> Check your user mode. If the Power User is not activated, do so by simply clicking on it
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On the Dm Menu, select "Camera" -> "Temperature.."
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Set -20 ° C as target temperature.
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Set the camera to be at - 20 ° C also when DM is launched again.
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