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equipment:zeiss-dsm-962 [2025/03/21 23:47] – q3kequipment:zeiss-dsm-962 [2026/02/14 17:37] (current) – [Setting up the vibration isolation] rahix
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 **Attachments/options:** Beam blanker, motorized stage, NORAN EDX **Attachments/options:** Beam blanker, motorized stage, NORAN EDX
  
 +⇒ [[equipment:zeiss-dsm-962:log|Logbook of work on our DSM]]
  
 ==== Powering on the scope ==== ==== Powering on the scope ====
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   - The system should now be operational.   - The system should now be operational.
  
-==== Venting the column ===+==== Venting the column ====
  
 To vent the column (eg. to change samples or inspect/replace filament): To vent the column (eg. to change samples or inspect/replace filament):
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   - Open chamber / gun, do your work, close it.   - Open chamber / gun, do your work, close it.
   - Press the EVAC button on the vacuum control panel.   - Press the EVAC button on the vacuum control panel.
 +
 +==== Setting up the vibration isolation ====
 +
 +Before imaging, you will need to set up the vibration isolation of the SEM column.  This is currently a manual process which works as follows:
 +
 +  - At the back of the SEM you will find 3 translucent blue tubes, each ending in an isolation valve and a tire valve adapter.  You will also find a bike pump ready right next to them.
 +    {{:equipment:20260214_isolation-valves.jpg?400|}}
 +  - Connect the bike pump to the tube labelled ''FRONT'' that runs deepest into the SEM, connecting to the front isolation bellows (this tube is split to connect to both front bellows at the same time).
 +  - Pump up the bellows to 2.9 barg.  After reaching that pressure, the bellows start suddenly moving quickly.  You will notice the front of the SEM column moving up.
 +  - Immediately stop pumping and go very slowly.
 +  - Close the blue isolation valve on the tube and disconnect the bike pump.  Carefully release some air using the isolation valve until the bellows height is about half-way.
 +  - You want the bellows to be roughly around the center of their extension range.  Release some air through the tire valve if necessary.
 +  - After pumping up the front bellows, attach the bike pump to one of the back bellows.  The tube is labelled ''BACK1''.
 +  - Repeat the pumping procedure detailed above.
 +  - Finally pump up the other back bellow (''BACK2'') using the same method.
 +
 +You can find more info in the log entries ([[equipment:zeiss-dsm-962:log#day_2025-08-23_q3k_rahix_ln_rob_2x_guest|first]], [[equipment:zeiss-dsm-962:log#day_2026-02-14_rahix|second]]) when we set up this system.  Be gentle with it and don't overfill the bellows.
 +
 +==== Using the EDX system ====
 +
 +The detector is currently not mounted, but you can try using the system for image acquisition.
 +
 +  - Power on the Dell PC, wait for a boot to desktop
 +  - Start the 'NSS ohne drift' script from the desktop
 +  - Start the 'NSS' software from the desktop
 +  - Select an existing or create a new project
 +  - Ignore the warning about the detector being at high temperature (it's not, it's just disconnected)
 +  - Select 'microanalysis imaging' (IIRC?) from the mode on the left
 +  - Press play to do a live acquisition, press the gradient button to do a high quality acquisition
 +
 +If everything goes well, the DSM will go into 'External Scan' mode and the acquisition will succeed. If the DSM goes into 'slow image scan' which can't be canceled, congratulations, you've hit The Bug Which We're Debugging.
  
 ==== Powering off the scope ==== ==== Powering off the scope ====
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 Part of the boot up is calling a program called **init_sbc** that supposedly restores (some of the) SBC's bios settings.  Part of the boot up is calling a program called **init_sbc** that supposedly restores (some of the) SBC's bios settings. 
  
-=== BIOS settings ===+== BIOS settings ==
  
 We replaced the BIOS battery. In case it dies again, you will have to set the BIOS to defaults, then press F1 and change the **Diskette drive-0** to 1.4 Mb **Fix-disk drive-0** type to **29**. Press F2 and let the device boot, some software will then reconfigure the rest of the BIOS accordingly. We replaced the BIOS battery. In case it dies again, you will have to set the BIOS to defaults, then press F1 and change the **Diskette drive-0** to 1.4 Mb **Fix-disk drive-0** type to **29**. Press F2 and let the device boot, some software will then reconfigure the rest of the BIOS accordingly.
  
 +=== Motorized Stage Controller ===
 +
 +Eurocard device, seems to be running [[https://en.wikipedia.org/wiki/Europe_Card_Bus|ECB]] on the backplane.
 +
 +== Cards ==
 +
 +  - 2x scheck elektronik spe SBC 1.2 (Z80 + PIO + DART)
 +    - 348740-9018.010: EPROM labeled 348740-84{1,2}0.030 (1 printed, 2 scribbled ober)
 +    - 348740-9017: EPROM labeled 348740-8410.010, extra connection to backplane over 26-pin connector
 +    - Both are connected together with what looks like UART.
 +  - 3x Motor? control card - 348340-9013
 +  - 1x PSU? card - 348340-9011
 +  - 1x UART card (built around Z80 DART) - 348338-9014
 +  - 1x unknown card - 348340-9016